cmshoppe/app/gui/workers.py

"""Concrete PySide6 workers used by GUI tabs."""

from __future__ import annotations

import datetime as _dt
import re
import threading
import time

try:
    from PySide6.QtCore import Signal
except ModuleNotFoundError:  # pragma: no cover - GUI import guard
    Signal = None

from .. import (
    ai,
    appconfig,
    cmhub_models,
    image_studio,
    image_studio_export,
    image_studio_generation,
    image_studio_images,
    product_status,
)
from ..collect_skip import ALIAS_UNMATCHED, LOGIN_REQUIRED, empty_skip_reason_counts
from .widgets import *


_USER_LOG_URL_RE = re.compile(r"https?://[^\s，,；;）)\]]+", re.IGNORECASE)
_USER_LOG_PATH_RE = re.compile(
    r"(?i)(/api(?:/v\d+)?/[^\s，,；;）)\]]*|/generated/images/[^\s，,；;）)\]]*)"
)


def _image_studio_step_label(step):
    return {
        "ensure_chrome": "准备账号浏览器",
        "login_check": "检测登录",
        "open_product": "打开商品页",
        "read_main_images": "读取蝦皮原主图",
        "cover_submit": "提交生图任务",
        "cover_poll": "查询生图结果",
        "cover_download": "下载生成图片",
        "job_done": "完成单张任务",
    }.get(str(step or ""), str(step or "处理"))


def _image_studio_result_label(result):
    return {
        "start": "开始",
        "success": "成功",
        "failed": "失败",
        "cancelled": "已停止",
        "blocked": "已阻断",
        "reused": "已复用",
        "launched": "已启动",
        "resume": "继续查询",
        "queued": "排队中",
        "running": "生成中",
        "expired": "已过期",
    }.get(str(result or ""), str(result or ""))


def _format_image_studio_event(event):
    event = dict(event or {})
    step = _image_studio_step_label(event.get("step"))
    result = _image_studio_result_label(event.get("result"))
    detail = str(event.get("detail") or "").strip()
    job_id = event.get("job_id")
    prefix = f"[AI工场] {step}"
    if job_id is not None:
        prefix += f" #{job_id}"
    if result:
        prefix += f"：{result}"
    if detail:
        prefix += f"，{_image_studio_user_detail(detail)}"
    if event.get("points_cost") is not None:
        prefix += f"，扣点 {event.get('points_cost')}"
    if event.get("points_balance") is not None:
        prefix += f"，余额 {event.get('points_balance')}"
    return prefix


def _format_product_suite_event(event):
    return _format_image_studio_event(event).replace("[AI工场]", "[商品套图]", 1)


def _image_studio_user_detail(detail):
    text = diagnostics.redact_log_text(str(detail or "")).replace("\r", " ").replace("\n", " ").strip()
    text = _USER_LOG_URL_RE.sub("[链接已隐藏]", text)
    text = _USER_LOG_PATH_RE.sub("[接口路径已隐藏]", text)
    text = text.replace("GET [链接已隐藏]", "请求 cmhub")
    text = text.replace("POST [链接已隐藏]", "请求 cmhub")
    if len(text) > 180:
        return text[:177] + "..."
    return text


class ImageStudioPullImagesWorker(BaseWorker):
    """Read Shopee main image URLs for one AI studio project in background."""

    def __init__(
        self,
        account_alias,
        item_id,
        *,
        pull_run_token="",
        db_path=None,
        config=None,
    ):
        super().__init__()
        self.account_alias = account_alias
        self.item_id = item_id
        self.pull_run_token = str(pull_run_token or "")
        self.db_path = db_path
        self.config = config

    def execute(self):
        if self.should_cancel():
            return {
                "pull_run_token": self.pull_run_token,
                "cancelled": True,
                "assets": [],
            }

        def on_step(payload):
            self.log.emit(_format_image_studio_event(payload))

        try:
            result = image_studio.pull_remote_main_image_urls(
                self.account_alias,
                self.item_id,
                path=self.db_path,
                config=self.config,
                on_step=on_step,
                should_stop=self.should_cancel,
            )
        except image_studio.ImageStudioPullCancelled as exc:
            return {
                "pull_run_token": self.pull_run_token,
                "cancelled": True,
                "project": exc.project,
                "assets": list(exc.assets or []),
            }
        project = result.get("project")
        assets = result.get("assets") or []
        return {
            "pull_run_token": self.pull_run_token,
            "project": project,
            "assets": assets,
            "count": len(assets),
            "account": result.get("account"),
            "cancelled": self.should_cancel(),
        }


class ImageStudioDownloadOriginalWorker(BaseWorker):
    """Download one remote original image into the project pool."""

    def __init__(
        self,
        asset_id,
        *,
        db_path=None,
        config=None,
        open_after=False,
        max_retries=2,
        retry_delays=(1, 2),
    ):
        super().__init__()
        self.asset_id = int(asset_id)
        self.db_path = db_path
        self.config = config
        self.open_after = bool(open_after)
        self.max_retries = max(0, int(max_retries or 0))
        self.retry_delays = tuple(float(delay) for delay in (retry_delays or ()))

    def execute(self):
        attempts = self.max_retries + 1
        for attempt in range(1, attempts + 1):
            if self.should_cancel():
                return {"asset_id": self.asset_id, "cancelled": True}
            self.progress.emit(
                {
                    "asset_id": self.asset_id,
                    "state": "start",
                    "attempt": attempt,
                    "attempts": attempts,
                }
            )
            self.log.emit(f"[AI工场] 下载蝦皮原主图 #{self.asset_id}：开始")
            try:
                asset = image_studio_images.download_original_asset(
                    self.asset_id,
                    path=self.db_path,
                    config=self.config,
                    should_stop=self.should_cancel,
                )
            except image_studio_images.ImageStudioImageCancelled:
                return {"asset_id": self.asset_id, "cancelled": True}
            except Exception:
                retry = attempt
                if attempt >= attempts:
                    self.progress.emit(
                        {
                            "asset_id": self.asset_id,
                            "state": "failed",
                            "attempt": attempt,
                            "attempts": attempts,
                        }
                    )
                    self.log.emit(f"[AI工场] 下载蝦皮原主图 #{self.asset_id}：最终失败")
                    return {
                        "ok": False,
                        "asset_id": self.asset_id,
                        "open_after": self.open_after,
                        "error": "蝦皮原主图下载失败，请稍后再次点击图片重试。",
                    }
                delay = self._retry_delay(retry)
                self.progress.emit(
                    {
                        "asset_id": self.asset_id,
                        "state": "retry",
                        "retry": retry,
                        "max_retries": self.max_retries,
                        "delay_seconds": delay,
                    }
                )
                self.log.emit(
                    f"[AI工场] 下载蝦皮原主图 #{self.asset_id}：失败，准备重试 {retry}/{self.max_retries}"
                )
                if not self._wait_for_retry(delay):
                    return {"asset_id": self.asset_id, "cancelled": True}
                continue
            self.progress.emit(
                {
                    "asset_id": self.asset_id,
                    "state": "success",
                    "attempt": attempt,
                    "attempts": attempts,
                }
            )
            self.log.emit(f"[AI工场] 下载蝦皮原主图 #{self.asset_id}：成功")
            return {"asset": asset, "asset_id": self.asset_id, "open_after": self.open_after}
        return {"asset_id": self.asset_id, "cancelled": True}

    def _retry_delay(self, retry):
        if retry <= 0:
            return 0.0
        index = min(retry - 1, len(self.retry_delays) - 1)
        return self.retry_delays[index] if index >= 0 else 0.0

    def _wait_for_retry(self, delay_seconds):
        deadline = time.monotonic() + max(0.0, float(delay_seconds or 0))
        while time.monotonic() < deadline:
            if self.should_cancel():
                return False
            time.sleep(min(0.1, max(0.0, deadline - time.monotonic())))
        return not self.should_cancel()


class ImageStudioGenerateJobsWorker(BaseWorker):
    """Run cmhub hosted image generation jobs for the AI studio."""

    def __init__(
        self,
        project_id,
        source_asset_id,
        prompt,
        count,
        *,
        job_type="main",
        aspect_ratio="1:1",
        db_path=None,
        config=None,
        cmhub_config_path=None,
    ):
        super().__init__()
        self.project_id = int(project_id)
        self.source_asset_id = int(source_asset_id)
        self.prompt = str(prompt or "")
        self.count = int(count or 0)
        self.job_type = str(job_type or "main")
        self.aspect_ratio = str(aspect_ratio or "1:1")
        self.db_path = db_path
        self.config = config
        self.cmhub_config_path = cmhub_config_path
        self._done = 0
        self._failed = 0
        self._lock = threading.Lock()

    def execute(self):
        self.progress.emit({"total": self.count, "done": 0, "failed": 0})

        def on_event(payload):
            event = dict(payload or {})
            self.log.emit(_format_image_studio_event(event))
            if event.get("points_cost") is not None or event.get("points_balance") is not None:
                self.progress.emit(
                    {
                        "total": self.count,
                        "done": self._done,
                        "failed": self._failed,
                        "points_cost": event.get("points_cost"),
                        "points_balance": event.get("points_balance"),
                    }
                )
            if event.get("step") == "job_done":
                with self._lock:
                    self._done += 1
                    if event.get("result") not in {"success"}:
                        self._failed += 1
                    progress = {
                        "total": self.count,
                        "done": self._done,
                        "failed": self._failed,
                    }
                self.progress.emit(progress)

        summary = image_studio_generation.generate_image_jobs(
            self.project_id,
            self.source_asset_id,
            self.prompt,
            self.count,
            job_type=self.job_type,
            aspect_ratio=self.aspect_ratio,
            config=self.config,
            cmhub_config_path=self.cmhub_config_path,
            path=self.db_path,
            should_stop=self.should_cancel,
            on_event=on_event,
        )
        summary["project_id"] = self.project_id
        return summary


class ProductSuiteGenerateWorker(BaseWorker):
    """Create and run independently configured product-suite jobs."""

    def __init__(
        self,
        project_id,
        job_specs,
        *,
        run_token="",
        generation_round_key=None,
        aspect_ratio="1:1",
        db_path=None,
        config=None,
        cmhub_config_path=None,
    ):
        super().__init__()
        self.project_id = int(project_id)
        self.job_specs = [dict(spec) for spec in (job_specs or [])]
        self.run_token = str(run_token or "")
        self.generation_round_key = str(generation_round_key or "").strip()
        self.aspect_ratio = str(aspect_ratio or "1:1")
        self.db_path = db_path
        self.config = config
        self.cmhub_config_path = cmhub_config_path
        self.job_ids = []
        self._done = 0
        self._failed = 0
        self._lock = threading.Lock()

    def execute(self):
        total = len(self.job_specs)
        if total <= 0:
            raise ValueError("商品套图生成任务不能为空")
        jobs = []
        for spec in self.job_specs:
            jobs.append(
                image_studio.create_job(
                    self.project_id,
                    source_asset_id=spec.get("source_asset_id"),
                    reference_asset_ids=spec.get("reference_asset_ids"),
                    job_type=spec.get("job_type") or "套图",
                    prompt=spec.get("prompt") or "",
                    generation_source="cmhub",
                    provider="cmhub",
                    generation_round_key=spec.get("generation_round_key") or self.generation_round_key or None,
                    generation_slot_index=spec.get("generation_slot_index"),
                    path=self.db_path,
                )
            )
        self.job_ids = [job.id for job in jobs]
        self.progress.emit(
            {
                "run_token": self.run_token,
                "total": len(jobs),
                "done": 0,
                "failed": 0,
                "job_ids": list(self.job_ids),
            }
        )

        def on_event(payload):
            event = dict(payload or {})
            self.log.emit(_format_product_suite_event(event))
            if event.get("step") == "job_done":
                with self._lock:
                    self._done += 1
                    if event.get("result") != "success":
                        self._failed += 1
                    progress = {
                        "run_token": self.run_token,
                        "total": len(jobs),
                        "done": self._done,
                        "failed": self._failed,
                        "job_ids": list(self.job_ids),
                    }
                self.progress.emit(progress)

        summary = image_studio_generation.run_jobs(
            jobs,
            aspect_ratio=self.aspect_ratio,
            config=self.config,
            cmhub_config_path=self.cmhub_config_path,
            path=self.db_path,
            should_stop=self.should_cancel,
            on_event=on_event,
        )
        summary["project_id"] = self.project_id
        summary["job_ids"] = list(self.job_ids)
        summary["cancelled_count"] = int(summary.get("cancelled", 0) or 0)
        summary["run_token"] = self.run_token
        summary["generation_round_key"] = self.generation_round_key or None
        return summary


class ProductSuiteHistoryExportWorker(BaseWorker):
    """Copy one product-suite generation round outside the GUI thread."""

    def __init__(self, project_id, generation_round_key, parent_dir, *, db_path=None):
        super().__init__()
        self.project_id = int(project_id)
        self.generation_round_key = generation_round_key
        self.parent_dir = str(parent_dir or "")
        self.db_path = db_path

    def execute(self):
        self.log.emit("[商品套图] 导出历史套图：开始")
        result = image_studio_export.export_generation_round(
            self.project_id,
            self.generation_round_key,
            self.parent_dir,
            path=self.db_path,
            should_stop=self.should_cancel,
        )
        self.log.emit("[商品套图] 导出历史套图：完成")
        return {
            "target_dir": result.target_dir,
            "file_count": len(result.files),
            "skipped_count": int(result.skipped_count),
            "cancelled": bool(result.cancelled),
        }


class ProductSuiteAiWriteWorker(BaseWorker):
    """Analyze local product images without blocking the suite workspace."""

    def __init__(
        self,
        instruction,
        context,
        *,
        image_paths=None,
        config=None,
        cmhub_config_path=None,
    ):
        super().__init__()
        self.instruction = str(instruction or "")
        self.context = str(context or "")
        self.image_paths = [str(path or "") for path in list(image_paths or [])]
        self.config = config
        self.cmhub_config_path = cmhub_config_path

    def execute(self):
        if self.should_cancel():
            return {"cancelled": True}
        result = ai.analyze_product_images(
            self.instruction,
            self.context,
            self.image_paths,
            config=self.config,
            cmhub_config_path=self.cmhub_config_path,
        )
        if self.should_cancel():
            return {"cancelled": True}
        return {
            "text": str(result.get("text") or "").strip(),
            "image_count": int(result.get("image_count", 0) or 0),
            "metadata": dict(result.get("metadata") or {}),
        }


class CMHubModelCatalogWorker(BaseWorker):
    """Fetch a transient cmhub model catalog without blocking a product workflow."""

    def __init__(
        self,
        base_url,
        api_key,
        *,
        connect_timeout=10,
        use_system_proxy=False,
    ):
        super().__init__()
        self.base_url = appconfig.normalize_cmhub_base_url(base_url)
        self.api_key = str(api_key or "")
        self.connect_timeout = max(1, int(connect_timeout or 10))
        self.use_system_proxy = bool(use_system_proxy)

    def execute(self):
        if self.should_cancel():
            return {"cancelled": True}
        models = ai.fetch_cmhub_models(
            self.base_url,
            self.api_key,
            connect_timeout=self.connect_timeout,
            use_system_proxy=self.use_system_proxy,
        )
        if self.should_cancel():
            return {"cancelled": True}
        cmhub_models.cache_model_catalog(self.base_url, models)
        return {"models": models}


class ProductSuiteImportImagesWorker(BaseWorker):
    """Validate and copy local product images outside the GUI thread."""

    def __init__(
        self,
        project_id,
        *,
        file_paths=None,
        image_bytes=None,
        filename_hint="clipboard.png",
        db_path=None,
        config=None,
    ):
        super().__init__()
        self.project_id = int(project_id)
        self.file_paths = list(file_paths or [])
        self.image_bytes = bytes(image_bytes) if image_bytes is not None else None
        self.filename_hint = str(filename_hint or "clipboard.png")
        self.db_path = db_path
        self.config = config

    def execute(self):
        if self.image_bytes is not None:
            asset = image_studio_images.import_original_bytes(
                self.project_id,
                self.image_bytes,
                filename_hint=self.filename_hint,
                path=self.db_path,
                config=self.config,
            )
            return {"assets": [asset], "errors": [], "limit": 16}
        return image_studio_images.import_original_files(
            self.project_id,
            self.file_paths,
            path=self.db_path,
            config=self.config,
        )


class ImageStudioResumeJobsWorker(BaseWorker):
    """Resume submitted/running or failed-download AI studio jobs."""

    def __init__(
        self,
        *,
        project_id=None,
        aspect_ratio="1:1",
        db_path=None,
        config=None,
        cmhub_config_path=None,
    ):
        super().__init__()
        self.project_id = int(project_id) if project_id is not None else None
        self.aspect_ratio = str(aspect_ratio or "1:1")
        self.db_path = db_path
        self.config = config
        self.cmhub_config_path = cmhub_config_path
        self._done = 0
        self._failed = 0
        self._lock = threading.Lock()

    def execute(self):
        def on_event(payload):
            event = dict(payload or {})
            self.log.emit(_format_image_studio_event(event))
            if event.get("step") == "job_done":
                with self._lock:
                    self._done += 1
                    if event.get("result") not in {"success"}:
                        self._failed += 1
                    progress = {"done": self._done, "failed": self._failed}
                self.progress.emit(progress)

        summary = image_studio_generation.resume_image_jobs(
            project_id=self.project_id,
            aspect_ratio=self.aspect_ratio,
            config=self.config,
            cmhub_config_path=self.cmhub_config_path,
            path=self.db_path,
            should_stop=self.should_cancel,
            on_event=on_event,
        )
        summary["project_id"] = self.project_id
        return summary


class ImageStudioExportWorker(BaseWorker):
    """Export AI studio final selections to local JPEG files."""

    def __init__(
        self,
        project_id,
        parent_dir,
        *,
        existing_mode=image_studio_export.EXISTING_FAIL,
        db_path=None,
        config=None,
    ):
        super().__init__()
        self.project_id = int(project_id)
        self.parent_dir = parent_dir
        self.existing_mode = existing_mode
        self.db_path = db_path
        self.config = config

    def execute(self):
        self.log.emit("[AI工场] 导出终选：开始")
        result = image_studio_export.export_project_selection(
            self.project_id,
            self.parent_dir,
            existing_mode=self.existing_mode,
            path=self.db_path,
            config=self.config,
        )
        self.log.emit("[AI工场] 导出终选：成功")
        return {
            "target_dir": result.target_dir,
            "main_count": result.main_count,
            "detail_count": result.detail_count,
            "file_count": len(result.files),
            "existing_mode": result.existing_mode,
        }


def _generation_mode_label(mode):
    mode = appconfig.normalize_generate_mode(mode)
    return {
        "title": "只生成标题",
        "cover": "只生成封面",
        "title_cover": "生成标题和封面",
    }.get(mode, "只生成标题")


def _update_mode_label(mode):
    mode = appconfig.normalize_update_mode(mode)
    return {
        "title": "只更新标题",
        "cover": "只更新封面",
        "title_cover": "更新标题和封面",
    }.get(mode, "只更新标题")


class GenerateWorker(BaseWorker):
    """Generate titles and covers for eligible collected or failed generation tasks."""

    def __init__(
        self,
        tasks,
        prompt_values,
        db_path=None,
        config=None,
        diagnostic_log_dir=None,
        generation_scope="all",
        product_status_counts=None,
        status_scope_excluded=0,
        generation_plan_fingerprint=None,
    ):
        super().__init__()
        self.tasks = list(tasks)
        self.prompt_values = dict(prompt_values or {})
        self.db_path = db_path
        self.config = config
        self.diagnostic_log_dir = diagnostic_log_dir
        self.generation_scope = product_status.normalize_scope(generation_scope)
        self.product_status_counts = {
            status: int((product_status_counts or {}).get(status, 0) or 0)
            for status in product_status.VALID_PRODUCT_STATUSES
        }
        self.status_scope_excluded = max(0, int(status_scope_excluded or 0))
        self.generation_plan_fingerprint = (
            str(generation_plan_fingerprint or "") or None
        )
        self._run_id = None
        self._account_by_alias = {}
        self._task_positions = {}
        self._eligible_total = 0
        self._last_progress_payload = {}
        self._cmhub_points_balance = None
        self._billing_error = None
        self._billing_stop_requested = False
        self._run_started_at_text = ""
        self._run_started_monotonic = None

    def execute(self):
        self._run_started_at_text = self._format_local_time()
        self._run_started_monotonic = time.monotonic()
        account_rows = accounts.list_accounts(path=self.db_path, config=self.config)
        account_by_alias = {
            str(account.alias).strip(): account
            for account in account_rows
            if str(account.alias).strip()
        }
        self._account_by_alias = account_by_alias
        ai_cfg = appconfig.ai_config(self.config)
        generate_mode = appconfig.ai_generate_mode(self.config)
        generate_cover = appconfig.generate_mode_includes_cover(generate_mode)
        eligible = [
            task for task in self.tasks
            if ai.is_generatable_task(task, generate_mode=generate_mode)
        ]
        if self.generation_scope == product_status.SCOPE_NORMAL_ONLY:
            eligible = [
                task
                for task in eligible
                if product_status.is_normal(getattr(task, "product_status", None))
            ]
        component_totals = ai.generation_component_totals(
            eligible,
            generate_mode=generate_mode,
        )
        self._eligible_total = len(eligible)
        self._task_positions = {
            getattr(task, "id", None): index
            for index, task in enumerate(eligible, start=1)
        }
        batch_ids = self._batch_ids(eligible)
        self._run_id = self._create_run_log(eligible, batch_ids)
        mode_text = _generation_mode_label(generate_mode)
        if generate_cover:
            if appconfig.ai_backend(self.config) == "cmhub":
                concurrency = ai.cmhub_image_concurrency_plan(ai_cfg)
                start_message = "[开始] 本轮生成 {total} 条：本轮生成内容：{mode_text}；标题{title_total}，图片{cover_total}；标题并发{title_concurrency}，图片并发{image_concurrency}，cmhub实际生图并发{request_concurrency}，下载并发{download_concurrency}；开始时间 {started_at}".format(
                    total=len(eligible),
                    mode_text=mode_text,
                    title_total=component_totals["title_total"],
                    cover_total=component_totals["cover_total"],
                    title_concurrency=ai_cfg.get("title_concurrency", 1),
                    image_concurrency=concurrency["configured_image_concurrency"],
                    request_concurrency=concurrency["request_concurrency"],
                    download_concurrency=concurrency["download_concurrency"],
                    started_at=self._run_started_at_text,
                )
            else:
                start_message = "[开始] 本轮生成 {total} 条：本轮生成内容：{mode_text}；标题{title_total}，图片{cover_total}；标题并发{title_concurrency}，图片并发{image_concurrency}；开始时间 {started_at}".format(
                    total=len(eligible),
                    mode_text=mode_text,
                    title_total=component_totals["title_total"],
                    cover_total=component_totals["cover_total"],
                    title_concurrency=ai_cfg.get("title_concurrency", 1),
                    image_concurrency=ai_cfg.get("image_concurrency", 1),
                    started_at=self._run_started_at_text,
                )
        else:
            start_message = "[开始] 本轮生成 {total} 条：本轮生成内容：{mode_text}；标题{title_total}；标题并发{title_concurrency}；开始时间 {started_at}".format(
                total=len(eligible),
                mode_text=mode_text,
                title_total=component_totals["title_total"],
                title_concurrency=ai_cfg.get("title_concurrency", 1),
                started_at=self._run_started_at_text,
            )
        start_message += "；生成范围：{scope}；按范围排除{excluded}条".format(
            scope=(
                "仅状态正常"
                if self.generation_scope == product_status.SCOPE_NORMAL_ONLY
                else "所有状态"
            ),
            excluded=self.status_scope_excluded,
        )
        self._log_run_event(start_message)
        try:
            summary = ai.generate_batch(
                eligible,
                self.prompt_values,
                ai_cfg={
                    "config": self.config,
                    "db_path": self.db_path,
                    "image_dir": appconfig.image_dir(self.config),
                    "account_by_alias": account_by_alias,
                    "on_task_update": self._emit_row_update,
                    "on_event": self._on_generation_event,
                    "on_error": self._on_generation_error,
                    "generate_cover": generate_cover,
                    "generate_mode": generate_mode,
                },
                on_progress=self._emit_generate_progress,
                should_stop=self._should_stop_generation,
            )
        except Exception as exc:
            error = diagnostics.redact_log_text(str(exc) or exc.__class__.__name__)
            summary = {
                "ok": False,
                "error": error,
                "total": len(eligible),
                "title_total": component_totals["title_total"],
                "title_done": 0,
                "cover_done": 0,
                "cover_total": component_totals["cover_total"] if generate_cover else 0,
                "generated_done": 0,
                "failed": len(eligible),
                "cancelled": self.should_cancel(),
                "generate_cover": generate_cover,
                "generate_mode": generate_mode,
            }
            user_error = self._user_log_detail(error) or "未知错误"
            self._log_run_event(
                f"[失败] AI 生成运行失败：{user_error}",
                level="error",
            )
            self._write_diagnostic_log(
                "AI生成运行失败",
                level="ERROR",
                step="execute",
                payload={"error": error},
                exc=exc,
            )
        if self._cmhub_points_balance is not None:
            summary["points_balance"] = self._cmhub_points_balance
        if self._billing_error is not None:
            summary["billing_error"] = dict(self._billing_error)
            summary["ok"] = False
            summary["cancelled"] = True
        summary["generation_scope"] = self.generation_scope
        summary["product_status_counts"] = dict(self.product_status_counts)
        summary["status_scope_excluded"] = self.status_scope_excluded
        summary["generation_plan_fingerprint"] = self.generation_plan_fingerprint
        summary["run_id"] = self._run_id
        summary["batch_ids"] = batch_ids
        status = "failed" if summary.get("billing_error") or summary.get("error") else ("cancelled" if summary.get("cancelled") else "done")
        level = "error" if summary.get("billing_error") or summary.get("error") else ("warning" if summary.get("cancelled") else "info")
        self._log_run_event(self._format_generate_completion(summary), level=level)
        self._finish_run_log(status, summary)
        return summary

    def _emit_generate_progress(self, payload):
        progress = dict(payload or {})
        if self._cmhub_points_balance is not None:
            progress["points_balance"] = self._cmhub_points_balance
        if self._billing_error is not None:
            progress["billing_error"] = dict(self._billing_error)
        self._last_progress_payload = dict(progress)
        self.progress.emit(progress)

    def _should_stop_generation(self):
        return self.should_cancel() or self._billing_stop_requested

    def _emit_row_update(self, task_id, fields):
        self.row_updated.emit(int(task_id), dict(fields or {}))

    def _on_generation_event(self, payload):
        task = payload.get("task")
        self._remember_cmhub_metadata(payload)
        message = self._format_generation_event(payload)
        if not message:
            return
        self._log_run_event(
            message,
            task=task,
            level=payload.get("level") or "info",
            persist=not bool(payload.get("debug_only")),
        )

    def _remember_cmhub_metadata(self, payload):
        metadata = payload.get("metadata")
        if not isinstance(metadata, dict):
            return
        if metadata.get("points_balance") is not None:
            self._cmhub_points_balance = metadata.get("points_balance")
            self._emit_generate_progress(self._last_progress_payload)

    def _format_generation_event(self, payload):
        task = payload.get("task")
        phase = payload.get("phase") or "generate"
        step = payload.get("step") or "unknown"
        result = payload.get("result") or "start"
        detail = self._user_log_detail(
            payload.get("detail"),
            phase=phase,
            step=step,
            code=payload.get("code"),
            status=payload.get("status"),
        )
        if isinstance(payload.get("metadata"), dict):
            return self._format_cmhub_billing_event(task, phase, payload.get("metadata"))
        if phase == "title":
            if result == "start" and step == "title_submit":
                return f"[标题] {self._task_progress_label(task)} 开始生成"
            if result == "skipped":
                if detail and "旧标题作为封面参考" in detail:
                    return f"[图片] {self._task_progress_label(task)} {detail}"
                return f"[标题] {self._task_progress_label(task)} 已有标题，跳过生文"
            if result == "success" and step == "title_done":
                return f"[标题] {self._task_progress_label(task)} 成功"
            if result == "success" and step == "db_write":
                suffix = f"，{detail}" if detail else ""
                return f"[标题] {self._task_progress_label(task)} 已保存{suffix}"
            if result == "retry":
                return self._retry_message("标题", task, payload, detail)
            if result == "failed":
                return f"[失败] {self._task_plain_label(task)} 标题生成失败：{detail or '未知错误'}"
            if result == "cancelled":
                return f"[停止] {self._task_plain_label(task)} 标题生成已取消"
            return None
        if phase == "cover":
            if result == "debug" and step == "cover_image_url":
                debug_detail = self._debug_detail(payload.get("detail"))
                return f"[调试] {self._task_progress_label(task)} {debug_detail}"
            if result == "start" and step == "cover_submit":
                return f"[图片] {self._task_progress_label(task)} 开始生成"
            if result == "success" and step == "cover_request":
                return f"[图片] {self._task_progress_label(task)} {detail or 'cmhub 已返回图片，耗时未知'}"
            if result == "warning" and step == "cover_download":
                return f"[图片] {self._task_progress_label(task)} {detail or '图片下载较慢'}"
            if result == "success" and step == "cover_download":
                return f"[图片] {self._task_progress_label(task)} {detail or '图片下载完成，耗时未知'}"
            if result == "success" and step == "cover_save":
                return f"[图片] {self._task_progress_label(task)} 本地保存完成，{detail or '耗时未知'}"
            if result == "success" and step == "db_write":
                suffix = "，已保存到本地" if detail else ""
                return f"[图片] {self._task_progress_label(task)} 成功{suffix}"
            if result == "retry":
                return self._retry_message("图片", task, payload, detail)
            if result == "failed":
                return f"[失败] {self._task_plain_label(task)} 图片生成失败：{detail or '未知错误'}"
            if result == "cancelled":
                return f"[停止] {self._task_plain_label(task)} 图片生成已取消"
            return None
        return None

    def _format_cmhub_billing_event(self, task, phase, metadata):
        label = "标题" if phase == "title" else ("图片" if phase == "cover" else "AI")
        parts = []
        alias = metadata.get("alias") or metadata.get("model_used")
        if alias:
            parts.append(f"别名 {alias}")
        if metadata.get("points_cost") is not None:
            parts.append(f"扣点 {metadata.get('points_cost')}")
        if metadata.get("points_balance") is not None:
            parts.append(f"余额 {metadata.get('points_balance')}")
        if metadata.get("call_id"):
            parts.append(f"call_id={metadata.get('call_id')}")
        if not parts:
            return None
        return f"[计费] {self._task_plain_label(task)} {label}生成：" + "，".join(str(part) for part in parts)

    def _retry_message(self, label, task, payload, detail):
        attempt = int(payload.get("attempt", 0) or 0)
        attempts = int(payload.get("attempts", 0) or 0)
        max_retries = max(0, attempts - 1)
        retry_text = f"准备重试 {attempt}/{max_retries}" if max_retries else "准备重试"
        reason = f"：{detail}" if detail else ""
        return f"[{label}] {self._task_progress_label(task)} 调用失败，{retry_text}{reason}"

    def _task_progress_label(self, task):
        index = self._task_positions.get(getattr(task, "id", None), 0)
        total = self._eligible_total or 0
        item_id = getattr(task, "item_id", "") or "未知商品"
        shop = self._task_shop_label(task)
        shop_text = f"（{shop}）" if shop else ""
        return f"{index}/{total} 商品 {item_id}{shop_text}"

    def _task_plain_label(self, task):
        item_id = getattr(task, "item_id", "") or "未知商品"
        shop = self._task_shop_label(task)
        return f"商品 {item_id}（{shop}）" if shop else f"商品 {item_id}"

    def _task_shop_label(self, task):
        alias = str(getattr(task, "alias", "") or "").strip()
        account = self._account_by_alias.get(alias)
        if account is not None:
            return getattr(account, "account_name", None) or getattr(account, "alias", None) or alias
        return getattr(task, "account_name", None) or alias

    def _short_detail(self, detail):
        if detail is None:
            return ""
        text = diagnostics.redact_log_text(str(detail)).replace("\r", " ").replace("\n", " ").strip()
        if len(text) > 180:
            return text[:177] + "..."
        return text

    def _debug_detail(self, detail):
        if detail is None:
            return ""
        text = diagnostics.redact_log_text(str(detail)).replace("\r", " ").replace("\n", " ").strip()
        if len(text) > 2000:
            return text[:1997] + "..."
        return text

    def _user_log_detail(self, detail, phase=None, step=None, code=None, status=None):
        if detail is None:
            return ""
        raw = diagnostics.redact_log_text(str(detail)).replace("\r", " ").replace("\n", " ").strip()
        lowered = raw.lower()
        code_text = str(code or "").strip().lower()
        if code_text == "insufficient_points" or "点数不足" in raw:
            return "点数不足，请先充值"
        if code_text == "unauthorized" or "api key 无效" in raw.lower():
            return "cmhub API Key 无效，请去设置重填"
        if code_text in {"model_not_allowed", "no_pricing_rule"} or "模型别名" in raw or "模型配置不可用" in raw:
            return "cmhub 模型别名不可用，请去设置刷新别名并保存"
        if code_text == "content_blocked" or "内容安全" in raw:
            return "cmhub 内容安全策略拒绝本次生成"
        if code_text == "rate_limited" or "rate_limited" in lowered or "请求过于频繁" in raw:
            return "cmhub 请求过于频繁，请稍后重试"
        if code_text == "connect_timeout" or "连接 cmhub 超时" in raw:
            return "连接 cmhub 超时，请检查网络或稍后重试"
        if code_text == "read_timeout" or "等待 cmhub 返回超时" in raw:
            return "等待 cmhub 返回超时，本条已失败；可稍后重试"
        if (
            code_text == "not_found"
            or "not_found" in lowered
            or "接口不存在" in raw
            or str(status or "") == "404"
        ):
            return "cmhub 网关接口不可用，请检查设置中的 Base URL，或联系服务方确认网关版本"
        if code_text == "upstream_error" or "upstream_error" in lowered or "上游" in raw:
            return "cmhub 上游生成失败，请稍后重试"
        if "下载 cmhub 图片失败" in raw:
            return "下载 cmhub 图片失败，请检查网络后稍后重试"

        text = raw.replace("image_url", "图片")
        text = text.replace("返回 图片", "返回图片")
        text = _USER_LOG_URL_RE.sub("[链接已隐藏]", text)
        text = _USER_LOG_PATH_RE.sub("[接口路径已隐藏]", text)
        text = text.replace("GET [链接已隐藏]", "请求 cmhub")
        text = text.replace("POST [链接已隐藏]", "请求 cmhub")
        if len(text) > 180:
            return text[:177] + "..."
        return text

    def _format_generate_completion(self, summary):
        progress = self._summary_text(summary)
        billing_error = summary.get("billing_error") or {}
        finished_at = self._format_local_time()
        elapsed = self._format_run_elapsed()
        suffix = f"；{self._completion_time_label(summary)} {finished_at}，总用时 {elapsed}"
        if billing_error:
            message = self._user_log_detail(billing_error.get("message") or "点数不足，请先充值") or "点数不足，请先充值"
            return f"[失败] AI 生成已中止：{message}，{progress}{suffix}"
        if summary.get("cancelled"):
            return f"[停止] AI 生成已停止：{progress}{suffix}"
        if summary.get("error"):
            error = self._user_log_detail(summary.get("error")) or "未知错误"
            return f"[失败] AI 生成失败：{error}，{progress}{suffix}"
        return f"[完成] AI 生成完成：{progress}{suffix}"

    def _completion_time_label(self, summary):
        if summary.get("billing_error") or summary.get("error"):
            return "失败时间"
        if summary.get("cancelled"):
            return "停止时间"
        return "完成时间"

    def _format_local_time(self):
        return _dt.datetime.now().strftime("%Y-%m-%d %H:%M:%S")

    def _format_run_elapsed(self):
        if self._run_started_monotonic is None:
            return "0秒"
        return self._format_duration(time.monotonic() - self._run_started_monotonic)

    def _format_duration(self, seconds):
        total = max(0, int(seconds or 0))
        hours, remainder = divmod(total, 3600)
        minutes, seconds = divmod(remainder, 60)
        if hours:
            return f"{hours}小时{minutes:02d}分{seconds:02d}秒"
        if minutes:
            return f"{minutes}分{seconds:02d}秒"
        return f"{seconds}秒"

    def _summary_text(self, summary):
        title_total = summary.get("title_total", summary.get("total", 0))
        cover_total = summary.get("cover_total", summary.get("total", 0))
        return "标题{title}/{total}，图片{cover}/{cover_total}，失败{failed}".format(
            title=summary.get("title_done", 0),
            cover=summary.get("cover_done", 0),
            cover_total=cover_total,
            total=title_total,
            failed=summary.get("failed", 0),
        )

    def _on_generation_error(self, payload):
        task = payload.get("task")
        phase = payload.get("phase") or "generate"
        step = payload.get("step") or "unknown"
        exception = payload.get("exception")
        code = payload.get("code") or getattr(exception, "code", None)
        status = payload.get("status") or getattr(exception, "status", None)
        error = diagnostics.redact_log_text(payload.get("error") or "未知错误")
        if str(code or "") == "insufficient_points":
            self._billing_stop_requested = True
            message = "点数不足，请先充值。本轮未开始任务将停止。"
            self._billing_error = {
                "code": "insufficient_points",
                "message": message,
                "phase": phase,
                "task_id": getattr(task, "id", None),
                "item_id": getattr(task, "item_id", None),
            }
            if status is not None:
                self._billing_error["status"] = status
            self._log_run_event(
                f"[计费] {self._task_plain_label(task)} 点数不足，请先充值；本轮未开始任务将停止",
                task=task,
                level="error",
            )
            self._emit_generate_progress(self._last_progress_payload)
        diagnostic_payload = {"phase": phase, "error": error}
        if code is not None:
            diagnostic_payload["code"] = str(code)
        if status is not None:
            diagnostic_payload["status"] = status
        self._write_diagnostic_log(
            "AI生成任务失败",
            level="ERROR",
            step=step,
            task=task,
            payload=diagnostic_payload,
            exc=exception,
        )

    def _batch_ids(self, tasks):
        batch_ids = []
        for task in tasks:
            batch_id = getattr(task, "batch_id", None)
            if batch_id and batch_id not in batch_ids:
                batch_ids.append(batch_id)
        return batch_ids

    def _create_run_log(self, eligible, batch_ids):
        try:
            ai_cfg = appconfig.ai_config(self.config)
            return db.create_run_log(
                "generate",
                dry_run=False,
                total=len(eligible),
                options={
                    "batch_ids": batch_ids,
                    "default_text_model": ai_cfg.get("default_text_model"),
                    "default_image_model": ai_cfg.get("default_image_model"),
                    "resolution": ai_cfg.get("resolution"),
                    "title_concurrency": ai_cfg.get("title_concurrency"),
                    "image_concurrency": ai_cfg.get("image_concurrency"),
                    "generate_cover": ai_cfg.get("generate_cover", False),
                    "backend": ai_cfg.get("backend", "direct"),
                    "generation_scope": self.generation_scope,
                    "product_status_counts": dict(self.product_status_counts),
                    "status_scope_excluded": self.status_scope_excluded,
                    "generation_plan_fingerprint": self.generation_plan_fingerprint,
                },
                path=self.db_path,
            )
        except Exception:
            return None

    def _finish_run_log(self, status, summary):
        if self._run_id is None:
            return
        try:
            generated_done = summary.get("generated_done")
            if generated_done is None:
                generated_done = summary.get("cover_done", 0)
                if not summary.get("generate_cover", True) and not generated_done:
                    generated_done = summary.get("title_done", 0)
            done = int(generated_done or 0) + int(summary.get("failed", 0) or 0)
            db.finish_run_log(
                self._run_id,
                status=status,
                done=done,
                success_count=generated_done,
                skipped_count=0,
                failed_count=summary.get("failed", 0),
                summary_json=summary,
                path=self.db_path,
            )
        except Exception:
            return

    def _log_run_event(self, message, task=None, level="info", persist=True):
        safe_message = diagnostics.redact_log_text(message)
        self.log.emit(str(safe_message))
        if self._run_id is None or not persist:
            return
        try:
            db.add_run_log_event(
                self._run_id,
                safe_message,
                task_id=getattr(task, "id", None),
                alias=getattr(task, "alias", None),
                item_id=getattr(task, "item_id", None),
                level=level,
                path=self.db_path,
            )
        except Exception:
            return

    def _write_diagnostic_log(
        self,
        message,
        level="INFO",
        step=None,
        task=None,
        payload=None,
        exc=None,
    ):
        try:
            diagnostics.write_diagnostic_log(
                message,
                level=level,
                step=step,
                task_id=getattr(task, "id", None),
                alias=getattr(task, "alias", None),
                item_id=getattr(task, "item_id", None),
                payload=payload,
                exc=exc,
                log_dir=self.diagnostic_log_dir,
            )
        except Exception:
            return

class ApplyWorker(BaseWorker):
    """Apply generated title/cover changes, optionally previewing or grouping by account."""

    def __init__(
        self,
        tasks,
        db_path=None,
        config=None,
        preflight=True,
        dry_run=False,
        update_mode=None,
        max_parallel_accounts=1,
        batch_size=None,
        diagnostic_log_dir=None,
        product_status_counts=None,
        status_scope_excluded=0,
        content_scope_excluded=0,
        apply_plan_fingerprint=None,
    ):
        super().__init__()
        self.tasks = list(tasks)
        self.db_path = db_path
        self.config = config
        self.preflight = preflight
        self.dry_run = bool(dry_run)
        self.update_mode = appconfig.normalize_update_mode(
            update_mode,
            allow_cover_update=appconfig.shopee_update_config(config).get("allow_cover_update", False),
        )
        self.max_parallel_accounts = max(
            appconfig.SHOPEE_PARALLEL_ACCOUNTS_MIN,
            min(appconfig.SHOPEE_PARALLEL_ACCOUNTS_MAX, int(max_parallel_accounts or 1)),
        )
        self.batch_size = None if batch_size is None else max(1, int(batch_size or 1))
        self._current_batch_size = None
        self._batch_count = 0
        self._progress_lock = threading.Lock()
        self.diagnostic_log_dir = diagnostic_log_dir
        self.product_status_counts = {
            status: int((product_status_counts or {}).get(status, 0) or 0)
            for status in product_status.VALID_PRODUCT_STATUSES
        }
        self.status_scope_excluded = max(0, int(status_scope_excluded or 0))
        self.content_scope_excluded = max(0, int(content_scope_excluded or 0))
        self.apply_plan_fingerprint = str(apply_plan_fingerprint or "") or None
        self._run_id = None

    def execute(self):
        account_rows = accounts.list_accounts(path=self.db_path, config=self.config)
        account_by_alias = {
            str(account.alias).strip(): account
            for account in account_rows
            if str(account.alias).strip()
        }
        eligible = [task for task in self.tasks if self._is_actionable_task(task)]
        batch_ids = self._batch_ids(eligible)
        total = len(eligible)
        batch_size = self._effective_batch_size(total)
        batches = self._task_batches(eligible, batch_size)
        self._current_batch_size = batch_size
        self._batch_count = len(batches)
        counters = {
            "done": 0,
            "applied": 0,
            "skipped": 0,
            "failed": 0,
        }
        self._run_id = self._create_run_log(eligible, batch_ids)
        self._log_run_event(
            "step=start result=start detail=运行开始：{mode}，更新内容{update_mode}，任务{total}，每批最多{batch_size}，批次{batch_count}，{parallel}；商品状态异常排除{status_excluded}条；内容缺失排除{content_excluded}条".format(
                mode="检查本轮更新" if self.dry_run else "真实更新",
                update_mode=_update_mode_label(self.update_mode),
                total=total,
                batch_size=batch_size,
                batch_count=len(batches),
                parallel=(
                    f"多账号并行最多{self.max_parallel_accounts}"
                    if self.max_parallel_accounts > 1
                    else "串行"
                ),
                status_excluded=self.status_scope_excluded,
                content_excluded=self.content_scope_excluded,
            )
        )

        if self.preflight and not self.dry_run:
            self._log_run_event("step=preflight result=start detail=账号就绪检查")
            blocked = self._preflight_block(eligible, account_rows, account_by_alias)
            if blocked:
                self._log_preflight_blocked(blocked)
                summary = self._summary(
                    ok=False,
                    total=total,
                    counters=counters,
                    batch_ids=batch_ids,
                    blocked=True,
                    extra=blocked,
                )
                self._finish_run_log("blocked", summary)
                return summary
            self._log_run_event("step=preflight result=success detail=账号检查通过")
        elif not self.preflight:
            self._log_run_event(
                "step=preflight result=skipped detail=测试模式跳过更新前检查",
                level="warning",
            )

        for batch_index, batch_tasks in enumerate(batches, start=1):
            if self.should_cancel():
                break
            self._log_batch_start(batch_index, len(batches), batch_tasks, counters, total)
            if self.dry_run:
                for task in batch_tasks:
                    if self.should_cancel():
                        break
                    outcome = self._preview_task(task, account_by_alias)
                    self._record_outcome(counters, total, outcome)
            elif self.max_parallel_accounts > 1:
                self._run_parallel_by_account(batch_tasks, account_by_alias, counters, total)
            else:
                for task in batch_tasks:
                    if self.should_cancel():
                        break
                    outcome = self._apply_one_task(task, account_by_alias)
                    self._record_outcome(counters, total, outcome)

        summary = self._summary(
            ok=counters["failed"] == 0,
            total=total,
            counters=counters,
            batch_ids=batch_ids,
        )
        self._finish_run_log("cancelled" if self.should_cancel() else "done", summary)
        return summary

    def _is_actionable_task(self, task):
        return (
            getattr(task, "stage", None) == "generated"
            and getattr(task, "status", None) in {"success", "pending", "failed"}
            and product_status.is_normal(getattr(task, "product_status", None))
            and (
                (
                    appconfig.update_mode_includes_title(self.update_mode)
                    and bool(getattr(task, "new_title", None))
                )
                or (
                    appconfig.update_mode_includes_cover(self.update_mode)
                    and bool(getattr(task, "new_cover_path", None))
                )
            )
        )

    def _preflight_block(self, eligible, account_rows, account_by_alias):
        if not account_rows:
            return {
                "reason": "NO_ACCOUNTS",
                "no_accounts": True,
            }
        duplicate_ports = self._duplicate_debug_ports(account_rows, eligible, account_by_alias)
        if duplicate_ports:
            return {
                "reason": "DUPLICATE_DEBUG_PORT",
                "duplicate_ports": duplicate_ports,
            }
        required_accounts = []
        seen_aliases = set()
        for task in eligible:
            alias = str(task.alias).strip()
            account = account_by_alias.get(alias)
            if account is not None and alias not in seen_aliases:
                required_accounts.append(account)
                seen_aliases.add(alias)
        not_running = []
        logged_out = []
        for account in required_accounts:
            self._log_run_event(
                f"step=check_chrome result=start detail=账号 {account.alias} debug_port={account.debug_port}",
                level="info",
            )
            if not chrome.is_running(account.debug_port):
                self._log_run_event(
                    f"step=check_chrome result=blocked detail=账号 {account.alias} CDP 端口未响应 debug_port={account.debug_port}",
                    level="warning",
                )
                not_running.append(self._account_payload(account, "CDP 端口未响应"))
                continue
            self._log_run_event(
                f"step=check_chrome result=success detail=账号 {account.alias} debug_port={account.debug_port}",
                level="info",
            )
            self._log_run_event(
                f"step=login_check result=start detail=账号 {account.alias}",
                level="info",
            )
            status = self._login_status(account)
            if not status.get("logged_in"):
                reason = self._login_skip_reason(status)
                self._log_run_event(
                    f"step=login_check result=blocked detail=账号 {account.alias} {reason}",
                    level="warning",
                )
                logged_out.append(
                    self._account_payload(account, reason)
                )
            else:
                self._log_run_event(
                    f"step=login_check result=success detail=账号 {account.alias}",
                    level="info",
                )
        if not_running or logged_out:
            return {
                "reason": "ACCOUNT_NOT_READY",
                "not_running": not_running,
                "logged_out": logged_out,
            }
        return None

    def _duplicate_debug_ports(self, account_rows, eligible, account_by_alias):
        required_aliases = {
            str(task.alias).strip()
            for task in eligible
            if account_by_alias.get(str(task.alias).strip()) is not None
        }
        by_port = {}
        for account in account_rows:
            if account.alias not in required_aliases:
                continue
            by_port.setdefault(int(account.debug_port), []).append(account)
        duplicates = []
        for port, rows in by_port.items():
            if len(rows) > 1:
                duplicates.append(
                    {
                        "debug_port": port,
                        "aliases": [row.alias for row in rows],
                    }
                )
        return duplicates

    def _effective_batch_size(self, total):
        if self.batch_size is None:
            return max(1, int(total or 1))
        return self.batch_size

    def _task_batches(self, tasks, batch_size):
        if not tasks:
            return []
        return [
            tasks[index:index + batch_size]
            for index in range(0, len(tasks), batch_size)
        ]

    def _log_batch_start(self, batch_index, batch_count, batch_tasks, counters, total):
        first = counters["done"] + 1
        last = min(first + len(batch_tasks) - 1, total)
        label = "检查批次" if self.dry_run else "更新批次"
        self._log_run_event(
            f"step=batch result=start detail={label} {batch_index}/{batch_count} 开始：任务 {first}-{last}/{total}"
        )

    def _run_parallel_by_account(self, eligible, account_by_alias, counters, total):
        groups = self._group_tasks_by_alias(eligible)
        max_workers = min(self.max_parallel_accounts, len(groups))
        if max_workers <= 1:
            for group_tasks in groups:
                self._run_task_group(group_tasks, account_by_alias, counters, total)
            return
        with ThreadPoolExecutor(max_workers=max_workers) as executor:
            futures = [
                executor.submit(
                    self._run_task_group,
                    group_tasks,
                    account_by_alias,
                    counters,
                    total,
                )
                for group_tasks in groups
            ]
            for future in as_completed(futures):
                future.result()

    def _group_tasks_by_alias(self, tasks):
        groups = []
        index_by_alias = {}
        for task in tasks:
            alias = str(task.alias).strip()
            if alias not in index_by_alias:
                index_by_alias[alias] = len(groups)
                groups.append([])
            groups[index_by_alias[alias]].append(task)
        return groups

    def _run_task_group(self, tasks, account_by_alias, counters, total):
        for task in tasks:
            if self.should_cancel():
                break
            outcome = self._apply_one_task(task, account_by_alias)
            self._record_outcome(counters, total, outcome)

    def _preview_task(self, task, account_by_alias):
        account = account_by_alias.get(str(task.alias).strip())
        if account is None:
            reason = "别名未匹配账号"
            self._log_run_event(
                f"step=preview result=skipped detail=检查：任务 {task.id} 商品 {task.item_id} 将略过：{reason}",
                task=task,
                level="warning",
            )
            return "skipped"
        action_parts = []
        if appconfig.update_mode_includes_title(self.update_mode) and getattr(task, "new_title", None):
            action_parts.append("标题")
        if appconfig.update_mode_includes_cover(self.update_mode) and getattr(task, "new_cover_path", None):
            action_parts.append("封面")
        action_text = "+".join(action_parts) or "无变更"
        self._log_run_event(
            "step=preview result=success detail=检查：任务 {task_id} 商品 {item_id} 账号 {alias} 将更新 {action}".format(
                task_id=task.id,
                item_id=task.item_id,
                alias=account.alias,
                action=action_text,
            ),
            task=task,
        )
        return "applied"

    def _apply_one_task(self, task, account_by_alias):
        account = account_by_alias.get(str(task.alias).strip())
        if account is None:
            reason = "别名未匹配账号"
            db.mark_skipped(task.id, reason, path=self.db_path)
            self.row_updated.emit(task.id, {"status": "skipped", "last_error": reason})
            self._log_run_event(
                f"step=preflight result=skipped detail=任务 {task.id} 商品 {task.item_id} 已略过：{reason}",
                task=task,
                level="warning",
            )
            return "skipped"

        started = time.monotonic()
        current_step = "db_write"

        def on_step(event):
            nonlocal current_step
            if isinstance(event, dict):
                step = str(event.get("step") or "apply_task")
                result = str(event.get("result") or "start")
                detail = event.get("detail")
            else:
                step = str(event)
                result = "start"
                detail = None
            current_step = step
            level = "error" if result == "failed" else "info"
            detail_text = "任务 {task_id} 商品 {item_id}".format(
                task_id=task.id,
                item_id=task.item_id,
            )
            if detail:
                detail_text = f"{detail_text} {detail}"
            self._log_run_event(
                f"step={step} result={result} detail={detail_text}",
                task=task,
                level=level,
            )

        try:
            self._log_run_event(
                f"step=apply_task result=start detail=任务 {task.id} 商品 {task.item_id} 开始更新，账号 {account.alias}",
                task=task,
            )
            current_step = "db_write"
            self._log_run_event(
                f"step=db_write result=start detail=任务 {task.id} 商品 {task.item_id} 标记更新运行",
                task=task,
            )
            db.mark_running(task.id, "apply", path=self.db_path)
            self.row_updated.emit(task.id, {"status": "running", "last_error": None})
            current_step = "apply_task"
            result = editor.apply_task(
                account,
                task,
                on_step=on_step,
                bring_to_front=True,
                update_mode=self.update_mode,
            )
            committed = bool(result.get("committed")) and not result.get("error")
            error = result.get("error")
            failed_step = self._failed_apply_step(result, current_step)
            current_step = "db_write"
            self._log_run_event(
                f"step=db_write result=start detail=任务 {task.id} 商品 {task.item_id} 保存更新结果",
                task=task,
            )
            if committed:
                db.set_applied(task.id, True, path=self.db_path)
                elapsed_ms = self._elapsed_ms(started)
                self.row_updated.emit(
                    task.id,
                    {
                        "stage": "applied",
                        "status": "success",
                        "committed": 1,
                        "last_error": None,
                    },
                )
                self._log_run_event(
                    f"step=db_write result=success detail=任务 {task.id} 商品 {task.item_id} 更新成功 elapsed_ms={elapsed_ms}",
                    task=task,
                )
                return "applied"

            error = diagnostics.redact_log_text(error or "更新未提交")
            display_error = db.format_failure_error(error, failed_step)
            db.set_applied(task.id, False, error, path=self.db_path, step=failed_step)
            elapsed_ms = self._elapsed_ms(started)
            self.failed.emit(task.id, str(display_error))
            self.row_updated.emit(
                task.id,
                {"status": "failed", "last_error": str(display_error), "committed": 0},
            )
            self._log_run_event(
                f"step={failed_step} result=failed detail={error} elapsed_ms={elapsed_ms}",
                task=task,
                level="error",
            )
            self._log_run_event(
                f"step=db_write result=success detail=任务 {task.id} 商品 {task.item_id} 保存失败状态 elapsed_ms={elapsed_ms}",
                task=task,
            )
            self._write_diagnostic_log(
                "蝦皮更新任务失败",
                level="ERROR",
                step=failed_step,
                task=task,
                elapsed_ms=elapsed_ms,
                payload={"error": error, "result": result},
            )
            return "failed"
        except Exception as exc:
            error = diagnostics.redact_log_text(str(exc) or exc.__class__.__name__)
            display_error = db.format_failure_error(error, current_step)
            db.set_applied(task.id, False, error, path=self.db_path, step=current_step)
            elapsed_ms = self._elapsed_ms(started)
            self.failed.emit(task.id, display_error)
            self.row_updated.emit(
                task.id,
                {"status": "failed", "last_error": display_error, "committed": 0},
            )
            self._log_run_event(
                f"step={current_step} result=failed detail={error} elapsed_ms={elapsed_ms}",
                task=task,
                level="error",
            )
            self._write_diagnostic_log(
                "蝦皮更新任务异常",
                level="ERROR",
                step=current_step,
                task=task,
                elapsed_ms=elapsed_ms,
                payload={"error": error},
                exc=exc,
            )
            return "failed"

    def _record_outcome(self, counters, total, outcome):
        with self._progress_lock:
            counters["done"] += 1
            if outcome == "applied":
                counters["applied"] += 1
            elif outcome == "skipped":
                counters["skipped"] += 1
            else:
                counters["failed"] += 1
            self._emit_progress(
                counters["done"],
                total,
                counters["applied"],
                counters["skipped"],
                counters["failed"],
            )

    def _account_payload(self, account, reason=None):
        payload = {
            "account_name": account.account_name,
            "alias": account.alias,
            "debug_port": account.debug_port,
        }
        if reason:
            payload["reason"] = reason
        return payload

    def _emit_progress(self, done, total, applied, skipped, failed):
        self.progress.emit(
            {
                "done": done,
                "total": total,
                "applied": applied,
                "skipped": skipped,
                "failed": failed,
                "dry_run": self.dry_run,
                "batch_size": self._current_batch_size,
                "batch_count": self._batch_count,
                "update_mode": self.update_mode,
            }
        )

    def _login_status(self, account):
        try:
            return accounts.detect_login(account, path=self.db_path, config=self.config)
        except Exception as exc:
            return {
                "logged_in": False,
                "reason": f"LOGIN_CHECK_FAILED: {exc}",
            }

    def _login_skip_reason(self, status):
        reason = status.get("reason")
        return f"账号未登录: {reason}" if reason else "账号未登录"

    def _batch_ids(self, tasks):
        batch_ids = []
        for task in tasks:
            batch_id = getattr(task, "batch_id", None)
            if batch_id and batch_id not in batch_ids:
                batch_ids.append(batch_id)
        return batch_ids

    def _summary(self, ok, total, counters, batch_ids, blocked=False, extra=None):
        summary = {
            "ok": ok,
            "total": total,
            "done": counters["done"],
            "applied": counters["applied"],
            "skipped": counters["skipped"],
            "failed": counters["failed"],
            "batch_ids": batch_ids,
            "dry_run": self.dry_run,
            "account_parallel": self.max_parallel_accounts > 1,
            "batch_size": self._current_batch_size,
            "batch_count": self._batch_count,
            "update_mode": self.update_mode,
            "run_id": self._run_id,
            "product_status_counts": dict(self.product_status_counts),
            "status_scope_excluded": self.status_scope_excluded,
            "content_scope_excluded": self.content_scope_excluded,
            "apply_plan_fingerprint": self.apply_plan_fingerprint,
        }
        if blocked:
            summary["blocked"] = True
        if extra:
            summary.update(extra)
        return summary

    def _create_run_log(self, eligible, batch_ids):
        try:
            return db.create_run_log(
                "apply",
                dry_run=self.dry_run,
                total=len(eligible),
                options={
                    "batch_ids": batch_ids,
                    "dry_run": self.dry_run,
                    "account_parallel": self.max_parallel_accounts > 1,
                    "max_parallel_accounts": self.max_parallel_accounts,
                    "batch_size": self._current_batch_size,
                    "batch_count": self._batch_count,
                    "update_mode": self.update_mode,
                    "product_status_counts": dict(self.product_status_counts),
                    "status_scope_excluded": self.status_scope_excluded,
                    "content_scope_excluded": self.content_scope_excluded,
                    "apply_plan_fingerprint": self.apply_plan_fingerprint,
                },
                path=self.db_path,
            )
        except Exception:
            return None

    def _finish_run_log(self, status, summary):
        if self._run_id is None:
            return
        try:
            db.finish_run_log(
                self._run_id,
                status=status,
                done=summary.get("done", 0),
                success_count=summary.get("applied", 0),
                skipped_count=summary.get("skipped", 0),
                failed_count=summary.get("failed", 0),
                summary_json=summary,
                path=self.db_path,
            )
        except Exception:
            return

    def _log_run_event(self, message, task=None, level="info"):
        safe_message = diagnostics.redact_log_text(message)
        self.log.emit(str(safe_message))
        if self._run_id is None:
            return
        try:
            db.add_run_log_event(
                self._run_id,
                safe_message,
                task_id=getattr(task, "id", None),
                alias=getattr(task, "alias", None),
                item_id=getattr(task, "item_id", None),
                level=level,
                path=self.db_path,
            )
        except Exception:
            return


    def _log_preflight_blocked(self, blocked):
        if blocked.get("no_accounts"):
            self._log_run_event(
                "step=preflight result=blocked detail=当前没有配置账号",
                level="warning",
            )
        for item in blocked.get("duplicate_ports") or []:
            self._log_run_event(
                "step=preflight result=blocked detail=调试端口重复 debug_port={port} aliases={aliases}".format(
                    port=item.get("debug_port") or "",
                    aliases=",".join(item.get("aliases") or []),
                ),
                level="warning",
            )
        for item in blocked.get("not_running") or []:
            self._log_run_event(
                "step=check_chrome result=blocked detail=账号 {alias} Chrome 未启动或调试端口不可访问: {reason}".format(
                    alias=item.get("alias") or "",
                    reason=item.get("reason") or "",
                ),
                level="warning",
            )
        for item in blocked.get("logged_out") or []:
            self._log_run_event(
                "step=login_check result=blocked detail=账号 {alias} 未登录蝦皮: {reason}".format(
                    alias=item.get("alias") or "",
                    reason=item.get("reason") or "",
                ),
                level="warning",
            )

    def _failed_apply_step(self, result, fallback):
        if not isinstance(result, dict):
            return fallback or "apply_task"
        title = result.get("title")
        if isinstance(title, dict) and not title.get("ok", True):
            return "change_title"
        cover = result.get("cover")
        if isinstance(cover, dict) and not cover.get("ok", True):
            return "replace_cover"
        update = result.get("update")
        if isinstance(update, dict):
            return "click_update"
        return fallback or "apply_task"

    def _write_diagnostic_log(
        self,
        message,
        level="INFO",
        step=None,
        task=None,
        elapsed_ms=None,
        payload=None,
        exc=None,
    ):
        _safe_write_diagnostic_log(
            message,
            level=level,
            step=step,
            task=task,
            elapsed_ms=elapsed_ms,
            payload=payload,
            exc=exc,
            log_dir=self.diagnostic_log_dir,
        )

    def _elapsed_ms(self, started):
        return _elapsed_ms(started)

class CollectWorker(BaseWorker):
    """Collect old title and cover for imported tasks."""

    if Signal is not None:
        activity = Signal(dict)

    LOGIN_CHECK_ATTEMPTS = 3
    LOGIN_CHECK_RETRY_DELAY_SECONDS = 2.0

    def __init__(
        self,
        tasks,
        db_path=None,
        config=None,
        preflight=True,
        diagnostic_log_dir=None,
        collect_scope="all",
    ):
        super().__init__()
        self.tasks = list(tasks)
        self.db_path = db_path
        self.config = config
        self.preflight = preflight
        self.diagnostic_log_dir = diagnostic_log_dir
        self.collect_scope = product_status.normalize_collect_scope(collect_scope)
        self._run_id = None

    def execute(self):
        account_rows = accounts.list_accounts(path=self.db_path, config=self.config)
        account_by_alias = {
            str(account.alias).strip(): account
            for account in account_rows
            if str(account.alias).strip()
        }
        eligible = [
            task for task in self.tasks
            if getattr(task, "stage", None) == "imported"
        ]
        batch_ids = self._batch_ids(eligible)
        total = len(eligible)
        collected = 0
        skipped = 0
        failed = 0
        done = 0
        login_skip_reasons = {}
        login_required_accounts = {}
        preflight_info = {}
        skip_reason_counts = empty_skip_reason_counts()
        product_status_counts = {
            status: 0 for status in product_status.VALID_PRODUCT_STATUSES
        }
        status_scope_skipped = 0

        self._run_id = self._create_run_log(eligible, batch_ids)
        self._emit_activity(
            "preflight_started",
            total=total,
            step="preflight",
        )
        self._log_run_event(
            f"step=preflight result=start detail=采集运行开始 total={total}"
        )

        if self.preflight:
            blocked, preflight_info = self._preflight_prepare(eligible, account_rows, account_by_alias)
            if blocked:
                self._log_preflight_blocked(blocked)
                summary = self._summary(
                    ok=False,
                    total=total,
                    done=done,
                    collected=collected,
                    skipped=skipped,
                    failed=failed,
                    batch_ids=batch_ids,
                    blocked=True,
                    extra={
                        **blocked,
                        "skip_reason_counts": dict(skip_reason_counts),
                        "collect_scope": self.collect_scope,
                        "product_status_counts": dict(product_status_counts),
                        "status_scope_skipped": status_scope_skipped,
                    },
                )
                self._finish_run_log("blocked", summary)
                return summary
            for item in preflight_info.get("logged_out") or []:
                alias = str(item.get("alias") or "").strip()
                reason = item.get("reason") or "账号未登录"
                if alias:
                    login_skip_reasons[alias] = reason
                    login_required_accounts[alias] = item
            self._log_run_event("step=preflight result=success detail=账号就绪检查完成")
        else:
            self._log_run_event(
                "step=preflight result=skipped detail=测试模式跳过采集前检查",
                level="warning",
            )

        for index, task in enumerate(eligible, start=1):
            if self.should_cancel():
                break
            self._emit_activity(
                "task_started",
                task=task,
                index=index,
                total=total,
                step="match_account",
            )
            account = account_by_alias.get(str(task.alias).strip())
            if account is None:
                skipped += 1
                skip_reason_counts[ALIAS_UNMATCHED] += 1
                done += 1
                reason = "别名未匹配账号"
                db.mark_skipped(task.id, reason, path=self.db_path)
                self.row_updated.emit(task.id, {"status": "skipped", "last_error": reason})
                self._log_run_event(
                    "step=preflight result=skipped detail=任务 {task_id} 商品 {item_id} {reason}".format(
                        task_id=task.id,
                        item_id=task.item_id,
                        reason=reason,
                    ),
                    task=task,
                    level="warning",
                )
                self._emit_activity(
                    "task_finished",
                    task=task,
                    index=index,
                    total=total,
                    step="match_account",
                    result="skipped",
                )
                self._emit_progress(done, total, collected, skipped, failed)
                continue

            alias = str(task.alias).strip()
            if alias in login_skip_reasons:
                skipped += 1
                skip_reason_counts[LOGIN_REQUIRED] += 1
                done += 1
                reason = login_skip_reasons[alias]
                db.mark_skipped(task.id, reason, path=self.db_path)
                self.row_updated.emit(task.id, {"status": "skipped", "last_error": reason})
                self._log_run_event(
                    "step=login_check result=skipped detail=任务 {task_id} 商品 {item_id} {reason}".format(
                        task_id=task.id,
                        item_id=task.item_id,
                        reason=reason,
                    ),
                    task=task,
                    level="warning",
                )
                self._emit_activity(
                    "task_finished",
                    task=task,
                    index=index,
                    total=total,
                    step="check_login",
                    result="skipped",
                )
                self._emit_progress(done, total, collected, skipped, failed)
                continue

            self._emit_activity(
                "task_step",
                task=task,
                index=index,
                total=total,
                step="check_login",
            )
            status = self._confirmed_login_status(account, context="midrun", task=task)
            if self._is_definitive_logged_out(status):
                alias = str(task.alias).strip()
                skipped += 1
                skip_reason_counts[LOGIN_REQUIRED] += 1
                done += 1
                reason = self._midrun_login_skip_reason(status)
                login_skip_reasons[alias] = reason
                login_required_accounts[alias] = self._account_payload(account, reason)
                db.mark_skipped(task.id, reason, path=self.db_path)
                self.row_updated.emit(task.id, {"status": "skipped", "last_error": reason})
                self._log_run_event(
                    "step=login_check result=skipped detail=任务 {task_id} 商品 {item_id} {reason}".format(
                        task_id=task.id,
                        item_id=task.item_id,
                        reason=reason,
                    ),
                    task=task,
                    level="warning",
                )
                self._emit_activity(
                    "task_finished",
                    task=task,
                    index=index,
                    total=total,
                    step="check_login",
                    result="skipped",
                )
                self._emit_progress(done, total, collected, skipped, failed)
                continue
            if not status.get("logged_in"):
                self._log_run_event(
                    "step=login_check result=uncertain detail=任务 {task_id} 商品 {item_id} 登录状态检测暂时不稳定，继续尝试采集当前商品: {detail}".format(
                        task_id=task.id,
                        item_id=task.item_id,
                        detail=self._login_status_detail(status),
                    ),
                    task=task,
                    level="warning",
                )

            started = time.monotonic()
            current_step = "db_write"
            activity_result = "success"

            def on_step(step):
                nonlocal current_step
                current_step = str(step)
                self._emit_activity(
                    "task_step",
                    task=task,
                    index=index,
                    total=total,
                    step=current_step,
                )
                self._log_run_event(
                    "step={step} result=start detail=任务 {task_id} 商品 {item_id}".format(
                        step=current_step,
                        task_id=task.id,
                        item_id=task.item_id,
                    ),
                    task=task,
                )

            try:
                self._emit_activity(
                    "task_step",
                    task=task,
                    index=index,
                    total=total,
                    step="prepare_task",
                )
                self._log_run_event(
                    "step=db_write result=start detail=任务 {task_id} 商品 {item_id} 标记采集运行".format(
                        task_id=task.id,
                        item_id=task.item_id,
                    ),
                    task=task,
                )
                db.mark_running(task.id, "collect", path=self.db_path)
                self.row_updated.emit(task.id, {"status": "running"})
                result = editor.collect(
                    account,
                    {
                        "item_id": task.item_id,
                        "old_cover_path": self._old_cover_path(account, task),
                        "collection_scope": self.collect_scope,
                    },
                    on_step=on_step,
                )
                detected_status = product_status.normalize_status(
                    result.get("product_status")
                )
                product_status_counts[detected_status] += 1
                if result.get("product_status_error"):
                    self._write_diagnostic_log(
                        "商品状态检测失败，已按状态未知保存",
                        level="WARNING",
                        step="read_product_status",
                        task=task,
                        payload={"error": result.get("product_status_error")},
                    )
                if result.get("close_target_confirmed") is False:
                    self._log_run_event(
                        "step=close_product result=uncertain detail=任务 {task_id} 商品 {item_id} 商品页已请求关闭，但未在短时间内确认关闭；采集结果已保留，继续处理后续任务".format(
                            task_id=task.id,
                            item_id=task.item_id,
                        ),
                        task=task,
                        level="warning",
                    )
                    self._write_diagnostic_log(
                        "采集商品页关闭确认超时",
                        level="WARNING",
                        step="close_product",
                        task=task,
                        payload={
                            "alias": getattr(account, "alias", None),
                            "close_target_confirmed": False,
                        },
                    )
                if result.get("collection_skipped"):
                    activity_result = "skipped"
                    current_step = "read_product_status"
                    reason = result.get("collection_skip_reason") or product_status.collect_skip_reason(
                        detected_status
                    )
                    db.set_product_status(
                        task.id,
                        detected_status,
                        result.get("product_status_note"),
                        path=self.db_path,
                    )
                    db.mark_skipped(task.id, reason, path=self.db_path)
                    skipped += 1
                    status_scope_skipped += 1
                    self.row_updated.emit(
                        task.id,
                        {"status": "skipped", "last_error": reason},
                    )
                    self._log_run_event(
                        "step=read_product_status result=skipped detail=任务 {task_id} 商品 {item_id} {reason}".format(
                            task_id=task.id,
                            item_id=task.item_id,
                            reason=reason,
                        ),
                        task=task,
                        level="warning",
                    )
                    continue
                current_step = "db_write"
                self._emit_activity(
                    "task_step",
                    task=task,
                    index=index,
                    total=total,
                    step="save_result",
                )
                self._log_run_event(
                    "step=db_write result=start detail=任务 {task_id} 商品 {item_id} 保存采集结果".format(
                        task_id=task.id,
                        item_id=task.item_id,
                    ),
                    task=task,
                )
                db.set_collected(
                    task.id,
                    result.get("old_title", ""),
                    result.get("old_cover_path", ""),
                    product_status_value=result.get("product_status"),
                    product_status_note=result.get("product_status_note"),
                    path=self.db_path,
                )
                collected += 1
                elapsed_ms = self._elapsed_ms(started)
                self.row_updated.emit(
                    task.id,
                    {
                        "stage": "collected",
                        "status": "success",
                        "old_title": result.get("old_title", ""),
                        "old_cover_path": result.get("old_cover_path", ""),
                    },
                )
                self._log_run_event(
                    "step=db_write result=success detail=任务 {task_id} 商品 {item_id} 采集成功 elapsed_ms={elapsed_ms}".format(
                        task_id=task.id,
                        item_id=task.item_id,
                        elapsed_ms=elapsed_ms,
                    ),
                    task=task,
                )
            except Exception as exc:
                activity_result = "failed"
                failed += 1
                error = str(exc) or exc.__class__.__name__
                safe_error = diagnostics.redact_log_text(error)
                display_error = db.format_failure_error(safe_error, current_step)
                elapsed_ms = self._elapsed_ms(started)
                db.mark_failed(task.id, "collect", safe_error, path=self.db_path, step=current_step)
                self.failed.emit(task.id, display_error)
                self.row_updated.emit(task.id, {"status": "failed", "last_error": display_error})
                self._log_run_event(
                    "step={step} result=failed detail={error} elapsed_ms={elapsed_ms}".format(
                        step=current_step,
                        error=safe_error,
                        elapsed_ms=elapsed_ms,
                    ),
                    task=task,
                    level="error",
                )
                self._write_diagnostic_log(
                    "采集任务失败",
                    level="ERROR",
                    step=current_step,
                    task=task,
                    elapsed_ms=elapsed_ms,
                    payload={"error": safe_error},
                    exc=exc,
                )
            finally:
                done += 1
                self._emit_activity(
                    "task_finished",
                    task=task,
                    index=index,
                    total=total,
                    step=current_step,
                    result=activity_result,
                )
                self._emit_progress(done, total, collected, skipped, failed)

        summary = self._summary(
            ok=failed == 0,
            total=total,
            done=done,
            collected=collected,
            skipped=skipped,
            failed=failed,
            batch_ids=batch_ids,
            extra={
                **preflight_info,
                "login_required_accounts": list(login_required_accounts.values()),
                "skip_reason_counts": dict(skip_reason_counts),
                "collect_scope": self.collect_scope,
                "product_status_counts": dict(product_status_counts),
                "status_scope_skipped": status_scope_skipped,
            },
        )
        self._finish_run_log("cancelled" if self.should_cancel() else "done", summary)
        return summary

    def _preflight_prepare(self, eligible, account_rows, account_by_alias):
        if not account_rows:
            return (
                {
                    "reason": "NO_ACCOUNTS",
                    "no_accounts": True,
                },
                {},
            )
        required_accounts = []
        seen_aliases = set()
        for task in eligible:
            alias = str(task.alias).strip()
            account = account_by_alias.get(alias)
            if account is not None and alias not in seen_aliases:
                required_accounts.append(account)
                seen_aliases.add(alias)
        launch_failed = []
        logged_out = []
        launched = []
        reused = []
        for account in required_accounts:
            self._log_run_event(
                f"step=ensure_chrome result=start detail=账号 {account.alias} debug_port={account.debug_port}",
                level="info",
            )
            if chrome.is_running(account.debug_port):
                self._log_run_event(
                    f"step=ensure_chrome result=reused detail=账号 {account.alias} Chrome 已打开，复用现有窗口 debug_port={account.debug_port}",
                    level="info",
                )
                reused.append(self._account_payload(account, "已复用"))
            else:
                try:
                    result = accounts.launch_for_login(account, path=self.db_path, config=self.config)
                except Exception as exc:
                    reason = diagnostics.redact_log_text(str(exc) or exc.__class__.__name__)
                    self._log_run_event(
                        f"step=ensure_chrome result=blocked detail=账号 {account.alias} Chrome 启动失败: {reason}",
                        level="error",
                    )
                    launch_failed.append(self._account_payload(account, f"Chrome 启动失败: {reason}"))
                    continue
                action = "launched" if result.get("launched") else "reused"
                detail = "已启动" if action == "launched" else "已复用"
                self._log_run_event(
                    f"step=ensure_chrome result={action} detail=账号 {account.alias} {detail} debug_port={account.debug_port}",
                    level="info",
                )
                target = launched if result.get("launched") else reused
                target.append(self._account_payload(account, detail))
            self._log_run_event(
                f"step=login_check result=start detail=账号 {account.alias}",
                level="info",
            )
            status = self._confirmed_login_status(account, context="preflight")
            if status.get("logged_in"):
                self._log_run_event(
                    f"step=login_check result=success detail=账号 {account.alias}",
                    level="info",
                )
            elif self._is_definitive_logged_out(status):
                reason = self._login_skip_reason(status)
                self._log_run_event(
                    f"step=login_check result=blocked detail=账号 {account.alias} {reason}",
                    level="warning",
                )
                logged_out.append(
                    self._account_payload(account, reason)
                )
            else:
                self._log_run_event(
                    "step=login_check result=uncertain detail=账号 {alias} 登录状态检测暂时不稳定，继续进入采集流程: {detail}".format(
                        alias=account.alias,
                        detail=self._login_status_detail(status),
                    ),
                    level="warning",
                )
        info = {
            "launched_accounts": launched,
            "reused_accounts": reused,
            "logged_out": logged_out,
        }
        if launch_failed:
            return (
                {
                    "reason": "CHROME_LAUNCH_FAILED",
                    "launch_failed": launch_failed,
                },
                info,
            )
        return None, info

    def _account_payload(self, account, reason=None):
        payload = {
            "account_name": account.account_name,
            "alias": account.alias,
            "debug_port": account.debug_port,
        }
        if reason:
            payload["reason"] = reason
        return payload

    def _emit_activity(
        self,
        state,
        *,
        task=None,
        index=0,
        total=0,
        step=None,
        result=None,
    ):
        signal = getattr(self, "activity", None)
        if signal is None:
            return
        payload = {
            "state": str(state),
            "index": int(index or 0),
            "total": int(total or 0),
        }
        if task is not None:
            payload.update(
                {
                    "task_id": getattr(task, "id", None),
                    "item_id": str(getattr(task, "item_id", "") or ""),
                    "alias": str(getattr(task, "alias", "") or ""),
                }
            )
        if step:
            payload["step"] = str(step)
        if result:
            payload["result"] = str(result)
        signal.emit(payload)

    def _emit_progress(self, done, total, collected, skipped, failed):
        self.progress.emit(
            {
                "done": done,
                "total": total,
                "collected": collected,
                "skipped": skipped,
                "failed": failed,
            }
        )

    def _login_status(self, account):
        try:
            return accounts.detect_login(account, path=self.db_path, config=self.config)
        except Exception as exc:
            return {
                "logged_in": False,
                "reason": f"LOGIN_CHECK_FAILED: {exc}",
            }

    def _confirmed_login_status(self, account, context, task=None):
        started = time.monotonic()
        subject = self._login_check_subject(account, task)
        last_status = {}
        for attempt in range(1, self.LOGIN_CHECK_ATTEMPTS + 1):
            status = dict(self._login_status(account) or {})
            status["login_check_attempts"] = attempt
            last_status = status
            if status.get("logged_in"):
                if attempt > 1:
                    self._log_run_event(
                        "step=login_check result=recovered detail={subject} 登录检测已恢复，第{attempt}/{total}次确认已登录 elapsed_ms={elapsed_ms}".format(
                            subject=subject,
                            attempt=attempt,
                            total=self.LOGIN_CHECK_ATTEMPTS,
                            elapsed_ms=self._elapsed_ms(started),
                        ),
                        task=task,
                    )
                return status
            if self._is_definitive_logged_out(status):
                return status
            if attempt < self.LOGIN_CHECK_ATTEMPTS:
                self._log_run_event(
                    "step=login_check result=retry detail={subject} 登录状态暂时无法读取，第{attempt}/{total}次检测后将在{delay:g}秒后重试：{detail}".format(
                        subject=subject,
                        attempt=attempt,
                        total=self.LOGIN_CHECK_ATTEMPTS,
                        delay=self.LOGIN_CHECK_RETRY_DELAY_SECONDS,
                        detail=self._login_status_detail(status),
                    ),
                    task=task,
                    level="warning",
                )
                time.sleep(self.LOGIN_CHECK_RETRY_DELAY_SECONDS)
        last_status["login_check_uncertain"] = True
        self._write_diagnostic_log(
            "采集登录检测暂不确定",
            level="WARNING",
            step="login_check",
            task=task,
            payload={
                "context": context,
                "alias": getattr(account, "alias", None),
                "reason": last_status.get("reason"),
                "url": last_status.get("url"),
                "cookie_names": list(last_status.get("cookie_names") or []),
                "cookie_read_succeeded": bool(
                    last_status.get("cookie_read_succeeded")
                ),
                "probe_error": last_status.get("probe_error"),
                "probe_attempts": last_status.get("probe_attempts"),
                "attempts": last_status.get("login_check_attempts"),
            },
        )
        return last_status

    def _login_check_subject(self, account, task=None):
        alias = str(getattr(account, "alias", "") or "未知账号")
        if task is None:
            return f"账号 {alias}"
        return f"任务 {task.id} 商品 {task.item_id} 账号 {alias}"

    def _is_definitive_logged_out(self, status):
        reason = str((status or {}).get("reason") or "").strip()
        url = str((status or {}).get("url") or "").lower()
        return reason.startswith("LOGIN_PAGE") or (
            "accounts.shopee." in url and "/seller/login" in url
        )

    def _login_status_detail(self, status):
        status = status or {}
        raw_reason = str(status.get("reason") or "").strip()
        if raw_reason == "LOGIN_CHECK_TARGET_UNAVAILABLE":
            reason = "CDP页面暂时不可用"
        elif raw_reason.startswith("LOGIN_CHECK_FAILED"):
            reason = "登录检测调用失败"
        elif raw_reason == "NO_SESSION_COOKIE":
            reason = "暂未读取到登录会话"
        elif raw_reason == "LOGIN_PAGE":
            reason = "检测到登录页面"
        else:
            reason = raw_reason or "未知原因"
        url = status.get("url") or "未知URL"
        cookie_names = [str(name) for name in (status.get("cookie_names") or []) if name]
        cookie_text = ",".join(sorted(cookie_names)) if cookie_names else "未读到登录Cookie"
        return f"原因={reason}，URL={url}，Cookie名称={cookie_text}"

    def _login_skip_reason(self, status):
        reason = status.get("reason")
        return f"账号未登录: {reason}" if reason else "账号未登录"

    def _midrun_login_skip_reason(self, status):
        reason = self._login_skip_reason(status)
        return f"采集中途掉登录: {reason}"

    def _old_cover_path(self, account, task):
        image_root = appconfig.image_dir(self.config)
        return image_paths.task_image_path(image_root, task, account, "old")

    def _batch_ids(self, tasks):
        batch_ids = []
        for task in tasks:
            batch_id = getattr(task, "batch_id", None)
            if batch_id and batch_id not in batch_ids:
                batch_ids.append(batch_id)
        return batch_ids

    def _summary(
        self,
        ok,
        total,
        done,
        collected,
        skipped,
        failed,
        batch_ids,
        blocked=False,
        extra=None,
    ):
        summary = {
            "ok": ok,
            "total": total,
            "done": done,
            "collected": collected,
            "skipped": skipped,
            "failed": failed,
            "batch_ids": batch_ids,
            "run_id": self._run_id,
        }
        if blocked:
            summary["blocked"] = True
        if extra:
            summary.update(extra)
        return summary

    def _create_run_log(self, eligible, batch_ids):
        try:
            return db.create_run_log(
                "collect",
                dry_run=False,
                total=len(eligible),
                options={
                    "batch_ids": batch_ids,
                    "preflight": self.preflight,
                    "collect_scope": self.collect_scope,
                },
                path=self.db_path,
            )
        except Exception:
            return None

    def _finish_run_log(self, status, summary):
        if self._run_id is None:
            return
        try:
            db.finish_run_log(
                self._run_id,
                status=status,
                done=summary.get("done", 0),
                success_count=summary.get("collected", 0),
                skipped_count=summary.get("skipped", 0),
                failed_count=summary.get("failed", 0),
                summary_json=summary,
                path=self.db_path,
            )
        except Exception:
            return

    def _log_run_event(self, message, task=None, level="info"):
        safe_message = diagnostics.redact_log_text(message)
        self.log.emit(str(safe_message))
        if self._run_id is None:
            return
        try:
            db.add_run_log_event(
                self._run_id,
                safe_message,
                task_id=getattr(task, "id", None),
                alias=getattr(task, "alias", None),
                item_id=getattr(task, "item_id", None),
                level=level,
                path=self.db_path,
            )
        except Exception:
            return

    def _log_preflight_blocked(self, blocked):
        if blocked.get("no_accounts"):
            self._log_run_event(
                "step=preflight result=blocked detail=当前没有配置账号",
                level="warning",
            )
        for item in blocked.get("not_running") or []:
            self._log_run_event(
                "step=preflight result=blocked detail=账号 {alias} Chrome 未启动或调试端口不可访问: {reason}".format(
                    alias=item.get("alias") or "",
                    reason=item.get("reason") or "",
                ),
                level="warning",
            )
        for item in blocked.get("logged_out") or []:
            self._log_run_event(
                "step=preflight result=blocked detail=账号 {alias} 未登录蝦皮: {reason}".format(
                    alias=item.get("alias") or "",
                    reason=item.get("reason") or "",
                ),
                level="warning",
            )

    def _write_diagnostic_log(
        self,
        message,
        level="INFO",
        step=None,
        task=None,
        elapsed_ms=None,
        payload=None,
        exc=None,
    ):
        try:
            diagnostics.write_diagnostic_log(
                message,
                level=level,
                step=step,
                task_id=getattr(task, "id", None),
                alias=getattr(task, "alias", None),
                item_id=getattr(task, "item_id", None),
                elapsed_ms=elapsed_ms,
                payload=payload,
                exc=exc,
                log_dir=self.diagnostic_log_dir,
            )
        except Exception:
            return

    def _elapsed_ms(self, started):
        return int((time.monotonic() - started) * 1000)


class StatusRecheckWorker(CollectWorker):
    """Re-read product status snapshots without changing task workflow fields."""

    def __init__(
        self,
        tasks,
        db_path=None,
        config=None,
        preflight=True,
        diagnostic_log_dir=None,
    ):
        super().__init__(
            tasks,
            db_path=db_path,
            config=config,
            preflight=preflight,
            diagnostic_log_dir=diagnostic_log_dir,
            collect_scope=product_status.COLLECT_SCOPE_ALL,
        )

    def execute(self):
        account_rows = accounts.list_accounts(path=self.db_path, config=self.config)
        account_by_alias = {
            str(account.alias).strip(): account
            for account in account_rows
            if str(account.alias).strip()
        }
        eligible = list(self.tasks)
        batch_ids = self._batch_ids(eligible)
        total = len(eligible)
        rechecked = 0
        skipped = 0
        failed = 0
        done = 0
        login_skip_reasons = {}
        login_required_accounts = {}
        preflight_info = {}
        skip_reason_counts = empty_skip_reason_counts()
        product_status_counts = {
            status: 0 for status in product_status.VALID_PRODUCT_STATUSES
        }

        self._run_id = self._create_run_log(eligible, batch_ids)
        self._emit_activity("preflight_started", total=total, step="preflight")
        self._log_run_event(
            f"step=preflight result=start detail=商品状态重检开始 total={total}"
        )

        if self.preflight:
            blocked, preflight_info = self._preflight_prepare(
                eligible,
                account_rows,
                account_by_alias,
            )
            if blocked:
                self._log_preflight_blocked(blocked)
                summary = self._summary(
                    ok=False,
                    total=total,
                    done=done,
                    collected=rechecked,
                    skipped=skipped,
                    failed=failed,
                    batch_ids=batch_ids,
                    blocked=True,
                    extra={
                        **blocked,
                        "rechecked": rechecked,
                        "skip_reason_counts": dict(skip_reason_counts),
                        "product_status_counts": dict(product_status_counts),
                    },
                )
                self._finish_run_log("blocked", summary)
                return summary
            for item in preflight_info.get("logged_out") or []:
                alias = str(item.get("alias") or "").strip()
                reason = item.get("reason") or "账号未登录"
                if alias:
                    login_skip_reasons[alias] = reason
                    login_required_accounts[alias] = item
            self._log_run_event("step=preflight result=success detail=账号就绪检查完成")
        else:
            self._log_run_event(
                "step=preflight result=skipped detail=测试模式跳过商品状态重检前检查",
                level="warning",
            )

        for index, task in enumerate(eligible, start=1):
            if self.should_cancel():
                break
            self._emit_activity(
                "task_started",
                task=task,
                index=index,
                total=total,
                step="match_account",
            )
            account = account_by_alias.get(str(task.alias).strip())
            if account is None:
                skipped += 1
                done += 1
                skip_reason_counts[ALIAS_UNMATCHED] += 1
                reason = "别名未匹配账号"
                self._log_run_event(
                    "step=match_account result=skipped detail=任务 {task_id} 商品 {item_id} {reason}".format(
                        task_id=task.id,
                        item_id=task.item_id,
                        reason=reason,
                    ),
                    task=task,
                    level="warning",
                )
                self._emit_activity(
                    "task_finished",
                    task=task,
                    index=index,
                    total=total,
                    step="match_account",
                    result="skipped",
                )
                self._emit_recheck_progress(done, total, rechecked, skipped, failed)
                continue

            alias = str(task.alias).strip()
            if alias in login_skip_reasons:
                skipped += 1
                done += 1
                skip_reason_counts[LOGIN_REQUIRED] += 1
                reason = login_skip_reasons[alias]
                self._log_run_event(
                    "step=login_check result=skipped detail=任务 {task_id} 商品 {item_id} {reason}".format(
                        task_id=task.id,
                        item_id=task.item_id,
                        reason=reason,
                    ),
                    task=task,
                    level="warning",
                )
                self._emit_activity(
                    "task_finished",
                    task=task,
                    index=index,
                    total=total,
                    step="check_login",
                    result="skipped",
                )
                self._emit_recheck_progress(done, total, rechecked, skipped, failed)
                continue

            self._emit_activity(
                "task_step",
                task=task,
                index=index,
                total=total,
                step="check_login",
            )
            status = self._confirmed_login_status(account, context="status_recheck", task=task)
            if self._is_definitive_logged_out(status):
                skipped += 1
                done += 1
                skip_reason_counts[LOGIN_REQUIRED] += 1
                reason = self._midrun_login_skip_reason(status)
                login_skip_reasons[alias] = reason
                login_required_accounts[alias] = self._account_payload(account, reason)
                self._log_run_event(
                    "step=login_check result=skipped detail=任务 {task_id} 商品 {item_id} {reason}".format(
                        task_id=task.id,
                        item_id=task.item_id,
                        reason=reason,
                    ),
                    task=task,
                    level="warning",
                )
                self._emit_activity(
                    "task_finished",
                    task=task,
                    index=index,
                    total=total,
                    step="check_login",
                    result="skipped",
                )
                self._emit_recheck_progress(done, total, rechecked, skipped, failed)
                continue
            if not status.get("logged_in"):
                self._log_run_event(
                    "step=login_check result=uncertain detail=任务 {task_id} 商品 {item_id} 登录状态检测暂时不稳定，继续尝试读取商品状态: {detail}".format(
                        task_id=task.id,
                        item_id=task.item_id,
                        detail=self._login_status_detail(status),
                    ),
                    task=task,
                    level="warning",
                )

            started = time.monotonic()
            current_step = "read_product_status"
            activity_result = "success"

            def on_step(step):
                nonlocal current_step
                current_step = str(step)
                self._emit_activity(
                    "task_step",
                    task=task,
                    index=index,
                    total=total,
                    step=current_step,
                )
                self._log_run_event(
                    "step={step} result=start detail=任务 {task_id} 商品 {item_id}".format(
                        step=current_step,
                        task_id=task.id,
                        item_id=task.item_id,
                    ),
                    task=task,
                )

            try:
                result = editor.recheck_product_status(
                    account,
                    {"item_id": task.item_id},
                    on_step=on_step,
                )
                detected_status = product_status.normalize_status(
                    result.get("product_status")
                )
                product_status_counts[detected_status] += 1
                current_step = "db_write"
                self._emit_activity(
                    "task_step",
                    task=task,
                    index=index,
                    total=total,
                    step="save_result",
                )
                self._log_run_event(
                    "step=db_write result=start detail=任务 {task_id} 商品 {item_id} 保存商品状态".format(
                        task_id=task.id,
                        item_id=task.item_id,
                    ),
                    task=task,
                )
                db.set_product_status(
                    task.id,
                    detected_status,
                    result.get("product_status_note"),
                    path=self.db_path,
                )
                rechecked += 1
                elapsed_ms = self._elapsed_ms(started)
                self.row_updated.emit(
                    task.id,
                    {
                        "product_status": detected_status,
                        "product_status_note": result.get("product_status_note"),
                    },
                )
                self._log_run_event(
                    "step=db_write result=success detail=任务 {task_id} 商品 {item_id} 商品状态重检成功 elapsed_ms={elapsed_ms}".format(
                        task_id=task.id,
                        item_id=task.item_id,
                        elapsed_ms=elapsed_ms,
                    ),
                    task=task,
                )
                if result.get("close_target_confirmed") is False:
                    self._log_run_event(
                        "step=close_product result=uncertain detail=任务 {task_id} 商品 {item_id} 商品页已请求关闭，但未在短时间内确认关闭；状态结果已保存，继续处理后续任务".format(
                            task_id=task.id,
                            item_id=task.item_id,
                        ),
                        task=task,
                        level="warning",
                    )
            except Exception as exc:
                activity_result = "failed"
                failed += 1
                error = str(exc) or exc.__class__.__name__
                safe_error = diagnostics.redact_log_text(error)
                display_error = db.format_failure_error(safe_error, current_step)
                elapsed_ms = self._elapsed_ms(started)
                self.failed.emit(task.id, display_error)
                self._log_run_event(
                    "step={step} result=failed detail=商品状态重检失败: {error} elapsed_ms={elapsed_ms}".format(
                        step=current_step,
                        error=safe_error,
                        elapsed_ms=elapsed_ms,
                    ),
                    task=task,
                    level="error",
                )
                self._write_diagnostic_log(
                    "商品状态重检失败",
                    level="ERROR",
                    step=current_step,
                    task=task,
                    elapsed_ms=elapsed_ms,
                    payload={"error": safe_error},
                    exc=exc,
                )
            finally:
                done += 1
                self._emit_activity(
                    "task_finished",
                    task=task,
                    index=index,
                    total=total,
                    step=current_step,
                    result=activity_result,
                )
                self._emit_recheck_progress(done, total, rechecked, skipped, failed)

        summary = self._summary(
            ok=failed == 0,
            total=total,
            done=done,
            collected=rechecked,
            skipped=skipped,
            failed=failed,
            batch_ids=batch_ids,
            extra={
                **preflight_info,
                "rechecked": rechecked,
                "login_required_accounts": list(login_required_accounts.values()),
                "skip_reason_counts": dict(skip_reason_counts),
                "product_status_counts": dict(product_status_counts),
            },
        )
        self._finish_run_log("cancelled" if self.should_cancel() else "done", summary)
        return summary

    def _emit_recheck_progress(self, done, total, rechecked, skipped, failed):
        self.progress.emit(
            {
                "done": done,
                "total": total,
                "rechecked": rechecked,
                "skipped": skipped,
                "failed": failed,
            }
        )

    def _create_run_log(self, eligible, batch_ids):
        try:
            return db.create_run_log(
                "status_recheck",
                dry_run=False,
                total=len(eligible),
                options={
                    "batch_ids": batch_ids,
                    "preflight": self.preflight,
                    "scope": "current_filters",
                },
                path=self.db_path,
            )
        except Exception:
            return None

    def _finish_run_log(self, status, summary):
        if self._run_id is None:
            return
        try:
            db.finish_run_log(
                self._run_id,
                status=status,
                done=summary.get("done", 0),
                success_count=summary.get("rechecked", 0),
                skipped_count=summary.get("skipped", 0),
                failed_count=summary.get("failed", 0),
                summary_json=summary,
                path=self.db_path,
            )
        except Exception:
            return


class WriteBackWorker(BaseWorker):
    """Write Excel fields back in a background thread."""

    def __init__(self, batch_id, db_path=None, excel_path=None, mode="old", diagnostic_log_dir=None):
        super().__init__()
        self.batch_id = batch_id
        self.db_path = db_path
        self.excel_path = excel_path
        self.mode = mode
        self.diagnostic_log_dir = diagnostic_log_dir
        self._run_id = None

    def execute(self):
        batch_ids = self._batch_ids()
        self._run_id = _safe_create_run_log(
            "write_back",
            db_path=self.db_path,
            total=len(batch_ids),
            options={
                "batch_ids": batch_ids,
                "mode": self.mode,
                "excel_path": self.excel_path,
            },
        )
        self._log_run_event(
            f"step=start result=start detail=Excel 回写开始 mode={self.mode} batch_count={len(batch_ids)}"
        )
        results = []
        try:
            for batch_id in batch_ids:
                started = time.monotonic()
                self._log_run_event(
                    f"step=write_excel result=start detail=batch_id={batch_id} mode={self.mode}"
                )
                result = self._write_one(batch_id)
                results.append(result)
                self._log_run_event(
                    "step=write_excel result=success detail=batch_id={batch_id} files={files} rows={rows} elapsed_ms={elapsed_ms}".format(
                        batch_id=batch_id,
                        files=result.get("files", 0),
                        rows=result.get("rows", 0),
                        elapsed_ms=self._elapsed_ms(started),
                    )
                )
        except Exception as exc:
            error = diagnostics.redact_log_text(str(exc) or exc.__class__.__name__)
            self._log_run_event(
                f"step=write_excel result=failed detail={error}",
                level="error",
            )
            self._write_diagnostic_log(
                "Excel回写失败",
                level="ERROR",
                step="write_excel",
                payload={"batch_ids": batch_ids, "mode": self.mode, "error": error},
                exc=exc,
            )
            _safe_finish_run_log(
                self._run_id,
                db_path=self.db_path,
                status="failed",
                done=len(results),
                success_count=sum(result.get("rows", 0) for result in results),
                failed_count=1,
                summary_json={"ok": False, "error": error, "mode": self.mode},
            )
            raise
        result = results[0] if len(results) == 1 else self._combined_result(results)
        self.progress.emit(
            {
                "done": result.get("rows", 0),
                "total": result.get("rows", 0),
                "files": result.get("files", 0),
            }
        )
        _safe_finish_run_log(
            self._run_id,
            db_path=self.db_path,
            status="done",
            done=len(batch_ids),
            success_count=result.get("rows", 0),
            failed_count=0,
            summary_json={"ok": result.get("ok", False), "mode": self.mode, "result": result},
        )
        return result

    def _batch_ids(self):
        if isinstance(self.batch_id, (list, tuple, set)):
            return list(self.batch_id)
        return [self.batch_id]

    def _write_one(self, batch_id):
        if self.mode == "results":
            return excel.write_back_results(
                batch_id,
                excel_path=self.excel_path,
                path=self.db_path,
            )
        return excel.write_back(
            batch_id,
            excel_path=self.excel_path,
            path=self.db_path,
        )

    def _combined_result(self, results):
        written_files = []
        for result in results:
            for file_path in result.get("written_files", []):
                if file_path not in written_files:
                    written_files.append(file_path)
        return {
            "ok": all(result.get("ok", False) for result in results),
            "batch_id": [result.get("batch_id") for result in results],
            "files": sum(result.get("files", 0) for result in results),
            "rows": sum(result.get("rows", 0) for result in results),
            "written_files": written_files,
        }

    def _log_run_event(self, message, level="info"):
        safe_message = _safe_add_run_log_event(
            self._run_id,
            message,
            db_path=self.db_path,
            level=level,
        )
        self.log.emit(str(safe_message))

    def _write_diagnostic_log(self, message, level="INFO", step=None, payload=None, exc=None):
        _safe_write_diagnostic_log(
            message,
            level=level,
            step=step,
            payload=payload,
            exc=exc,
            log_dir=self.diagnostic_log_dir,
        )

    def _elapsed_ms(self, started):
        return _elapsed_ms(started)

class AccountLoginCheckWorker(BaseWorker):
    def __init__(self, account, db_path=None, config=None, timeout=8, diagnostic_log_dir=None):
        super().__init__()
        self.account = account
        self.db_path = db_path
        self.config = config
        self.timeout = timeout
        self.diagnostic_log_dir = diagnostic_log_dir
        self._run_id = None

    def execute(self):
        self._run_id = _safe_create_run_log(
            "login_check",
            db_path=self.db_path,
            total=1,
            options={
                "alias": self.account.alias,
                "debug_port": self.account.debug_port,
                "timeout": self.timeout,
            },
        )
        started = time.monotonic()
        self._log_run_event(
            f"step=detect_login result=start detail=账号 {self.account.alias} debug_port={self.account.debug_port}"
        )
        try:
            status = accounts.detect_login(
                self.account,
                timeout=self.timeout,
                path=self.db_path,
                config=self.config,
            )
        except Exception as exc:
            error = diagnostics.redact_log_text(str(exc) or exc.__class__.__name__)
            elapsed_ms = self._elapsed_ms(started)
            self._log_run_event(
                f"step=detect_login result=failed detail={error} elapsed_ms={elapsed_ms}",
                level="error",
            )
            self._write_diagnostic_log(
                "登录检测失败",
                level="ERROR",
                step="detect_login",
                elapsed_ms=elapsed_ms,
                payload={"alias": self.account.alias, "error": error},
                exc=exc,
            )
            _safe_finish_run_log(
                self._run_id,
                db_path=self.db_path,
                status="failed",
                done=0,
                failed_count=1,
                summary_json={"ok": False, "alias": self.account.alias, "error": error},
            )
            raise
        elapsed_ms = self._elapsed_ms(started)
        logged_in = bool(status.get("logged_in"))
        result_text = "success" if logged_in else "failed"
        level = "info" if logged_in else "warning"
        self._log_run_event(
            "step=detect_login result={result} detail=账号 {alias} logged_in={logged_in} reason={reason} elapsed_ms={elapsed_ms}".format(
                result=result_text,
                alias=self.account.alias,
                logged_in=logged_in,
                reason=status.get("reason") or "",
                elapsed_ms=elapsed_ms,
            ),
            level=level,
        )
        _safe_finish_run_log(
            self._run_id,
            db_path=self.db_path,
            status="done",
            done=1,
            success_count=1 if logged_in else 0,
            failed_count=0 if logged_in else 1,
            summary_json={"ok": logged_in, "alias": self.account.alias, "status": status},
        )
        self.row_updated.emit(self.account.id, status)
        return {"alias": self.account.alias, "status": status}

    def _log_run_event(self, message, level="info"):
        safe_message = _safe_add_run_log_event(
            self._run_id,
            message,
            db_path=self.db_path,
            account=self.account,
            level=level,
        )
        self.log.emit(str(safe_message))

    def _write_diagnostic_log(
        self,
        message,
        level="INFO",
        step=None,
        elapsed_ms=None,
        payload=None,
        exc=None,
    ):
        _safe_write_diagnostic_log(
            message,
            level=level,
            step=step,
            account=self.account,
            elapsed_ms=elapsed_ms,
            payload=payload,
            exc=exc,
            log_dir=self.diagnostic_log_dir,
        )

    def _elapsed_ms(self, started):
        return _elapsed_ms(started)

class CMHubSettingsWorker(BaseWorker):
    """Fetch cmhub aliases and optional balance without blocking the GUI."""

    def __init__(
        self,
        base_url,
        api_key,
        connect_timeout=10,
        include_balance=True,
        db_path=None,
        diagnostic_log_dir=None,
    ):
        super().__init__()
        self.base_url = str(base_url or "").strip()
        self.api_key = str(api_key or "")
        self.connect_timeout = max(1, int(connect_timeout or 10))
        self.include_balance = bool(include_balance)
        self.db_path = db_path
        self.diagnostic_log_dir = diagnostic_log_dir
        self._run_id = None

    def execute(self):
        self._run_id = self._create_run_log()
        started = time.monotonic()
        action = "测试连接/查余额" if self.include_balance else "刷新别名"
        self._log_run_event(f"step=cmhub_settings result=start detail={action}")
        try:
            models = ai.fetch_cmhub_models(
                self.base_url,
                self.api_key,
                connect_timeout=self.connect_timeout,
            )
            cmhub_models.cache_model_catalog(self.base_url, models)
            balance = None
            if self.include_balance:
                balance = ai.fetch_cmhub_balance(
                    self.base_url,
                    self.api_key,
                    connect_timeout=self.connect_timeout,
                )
        except Exception as exc:
            error = self._safe_error(exc)
            elapsed_ms = self._elapsed_ms(started)
            self._log_run_event(
                f"step=cmhub_settings result=failed detail={error} elapsed_ms={elapsed_ms}",
                level="error",
            )
            self._write_diagnostic_log(
                "cmhub 设置检测失败",
                level="ERROR",
                step="cmhub_settings",
                elapsed_ms=elapsed_ms,
                payload={"base_url": self.base_url, "error": error},
                exc=exc,
            )
            _safe_finish_run_log(
                self._run_id,
                db_path=self.db_path,
                status="failed",
                done=0,
                failed_count=1,
                summary_json={"ok": False, "error": error},
            )
            raise RuntimeError(error) from exc

        elapsed_ms = self._elapsed_ms(started)
        payload = {
            "ok": True,
            "models": appconfig.sanitize_for_log(models),
            "balance": appconfig.sanitize_for_log(balance or {}),
            "points_balance": (balance or {}).get("points_balance"),
        }
        title_count = self._priced_count(models, "title")
        image_count = self._priced_count(models, "image")
        vision_count = self._priced_count(models, "vision")
        self._log_run_event(
            "step=cmhub_settings result=success detail=title_aliases={title_count} image_aliases={image_count} vision_aliases={vision_count} points_balance={points_balance} elapsed_ms={elapsed_ms}".format(
                title_count=title_count,
                image_count=image_count,
                vision_count=vision_count,
                points_balance=payload.get("points_balance") if payload.get("points_balance") is not None else "",
                elapsed_ms=elapsed_ms,
            )
        )
        _safe_finish_run_log(
            self._run_id,
            db_path=self.db_path,
            status="done",
            done=1,
            success_count=1,
            summary_json=payload,
        )
        return payload

    def _priced_count(self, models, operation):
        return sum(
            1
            for model in models or []
            if str(model.get("operation_type") or "").lower() == operation
            and str(model.get("pricing_status") or "").lower() != "unpriced"
            and str(model.get("alias") or "").strip()
            and (
                operation != "vision"
                or (
                    str(model.get("pricing_status") or "").lower() == "priced"
                    and bool(model.get("requires_image"))
                )
            )
        )

    def _create_run_log(self):
        if not self.db_path:
            return None
        return _safe_create_run_log(
            "cmhub_settings_test",
            db_path=self.db_path,
            total=1,
            options={"base_url": self.base_url, "include_balance": self.include_balance},
        )

    def _log_run_event(self, message, level="info"):
        safe_message = _safe_add_run_log_event(
            self._run_id,
            message,
            db_path=self.db_path,
            level=level,
        )
        self.log.emit(str(safe_message))

    def _write_diagnostic_log(
        self,
        message,
        level="INFO",
        step=None,
        elapsed_ms=None,
        payload=None,
        exc=None,
    ):
        _safe_write_diagnostic_log(
            message,
            level=level,
            step=step,
            elapsed_ms=elapsed_ms,
            payload=payload,
            exc=exc,
            log_dir=self.diagnostic_log_dir,
        )

    def _safe_error(self, exc):
        raw = str(exc) or exc.__class__.__name__
        redacted = appconfig.redact_secrets(raw, [self.api_key])
        return diagnostics.redact_log_text(redacted)

    def _elapsed_ms(self, started):
        return _elapsed_ms(started)

class AIModelTestWorker(BaseWorker):
    """Test one AI model connection without blocking the GUI thread."""

    def __init__(self, model_name, ai_models_path=None, db_path=None, diagnostic_log_dir=None):
        super().__init__()
        self.model_name = model_name
        self.ai_models_path = ai_models_path or appconfig.AI_MODELS_PATH
        self.db_path = db_path
        self.diagnostic_log_dir = diagnostic_log_dir
        self._run_id = None

    def execute(self):
        self._run_id = self._create_run_log()
        started = time.monotonic()
        self._log_run_event(
            f"step=test_connection result=start detail=AI模型 {self.model_name}"
        )
        try:
            result = appconfig.test_ai_model(self.model_name, path=self.ai_models_path)
        except Exception as exc:
            error = diagnostics.redact_log_text(str(exc) or exc.__class__.__name__)
            elapsed_ms = self._elapsed_ms(started)
            self._log_run_event(
                f"step=test_connection result=failed detail={error} elapsed_ms={elapsed_ms}",
                level="error",
            )
            self._write_diagnostic_log(
                "AI模型测试连接异常",
                level="ERROR",
                step="test_connection",
                elapsed_ms=elapsed_ms,
                payload={"model_name": self.model_name, "error": error},
                exc=exc,
            )
            _safe_finish_run_log(
                self._run_id,
                db_path=self.db_path,
                status="failed",
                done=0,
                failed_count=1,
                summary_json={"ok": False, "name": self.model_name, "error": error},
            )
            raise
        elapsed_ms = self._elapsed_ms(started)
        payload = dict(appconfig.sanitize_for_log(result or {}))
        payload["name"] = self.model_name
        ok = bool(payload.get("ok"))
        self._log_run_event(
            "step=test_connection result={result} detail=AI模型 {name} status={status} error={error} elapsed_ms={elapsed_ms}".format(
                result="success" if ok else "failed",
                name=self.model_name,
                status=payload.get("status") or "",
                error=payload.get("error") or "",
                elapsed_ms=elapsed_ms,
            ),
            level="info" if ok else "warning",
        )
        _safe_finish_run_log(
            self._run_id,
            db_path=self.db_path,
            status="done",
            done=1,
            success_count=1 if ok else 0,
            failed_count=0 if ok else 1,
            summary_json=payload,
        )
        return payload

    def _create_run_log(self):
        if not self.db_path:
            return None
        return _safe_create_run_log(
            "ai_model_test",
            db_path=self.db_path,
            total=1,
            options={"model_name": self.model_name},
        )

    def _log_run_event(self, message, level="info"):
        safe_message = _safe_add_run_log_event(
            self._run_id,
            message,
            db_path=self.db_path,
            level=level,
        )
        self.log.emit(str(safe_message))

    def _write_diagnostic_log(
        self,
        message,
        level="INFO",
        step=None,
        elapsed_ms=None,
        payload=None,
        exc=None,
    ):
        _safe_write_diagnostic_log(
            message,
            level=level,
            step=step,
            elapsed_ms=elapsed_ms,
            payload=payload,
            exc=exc,
            log_dir=self.diagnostic_log_dir,
        )

    def _elapsed_ms(self, started):
        return _elapsed_ms(started)