"""PySide6 GUI entry point."""

from __future__ import annotations

import os
import sys
import threading
import time
from concurrent.futures import ThreadPoolExecutor, as_completed

try:
    from PySide6.QtCore import QAbstractTableModel, QModelIndex, Qt
    from PySide6.QtGui import QColor, QIcon, QPainter, QPixmap
    from PySide6.QtWidgets import (
        QAbstractItemView,
        QApplication,
        QCheckBox,
        QComboBox,
        QDialog,
        QDialogButtonBox,
        QFileDialog,
        QFormLayout,
        QGridLayout,
        QHBoxLayout,
        QHeaderView,
        QInputDialog,
        QLabel,
        QLineEdit,
        QMainWindow,
        QMenu,
        QMessageBox,
        QPlainTextEdit,
        QProgressBar,
        QPushButton,
        QScrollArea,
        QSplitter,
        QTableView,
        QSpinBox,
        QTableWidget,
        QTableWidgetItem,
        QTabWidget,
        QVBoxLayout,
        QWidget,
    )
    QT_IMPORT_ERROR = None
except ModuleNotFoundError as exc:
    QApplication = None
    QMainWindow = object
    QTabWidget = None
    QVBoxLayout = None
    QWidget = object
    QT_IMPORT_ERROR = exc


TAB_TITLES = [
    "① 导入采集",
    "② AI生成",
    "③ 更新蝦皮",
    "④ 账号管理",
    "⑤ 设置",
]

TAB_STYLE = """
QTabWidget::pane {
    border-top: 1px solid #c9d1d9;
}
QTabBar::tab {
    min-width: 128px;
    min-height: 34px;
    padding: 8px 18px;
    margin-right: 8px;
    border: 1px solid #c9d1d9;
    border-bottom-color: #b8c0ca;
    background: #f4f6f8;
    color: #24292f;
}
QTabBar::tab:selected {
    background: #ffffff;
    border-color: #687785;
    border-bottom-color: #ffffff;
    font-weight: 600;
}
QTabBar::tab:hover:!selected {
    background: #eaf2ff;
}
"""
COLOR_SUCCESS = "#1a7f37"
COLOR_DANGER = "#cf222e"
COLOR_INFO = "#0969da"
COLOR_PENDING = "#9a6700"
COLOR_MUTED = "#6e7781"
COLOR_WARNING = "#bc4c00"
COLOR_DANGER_BG = "#ffebe9"
STATUS_LEVEL_COLORS = {
    "muted": COLOR_MUTED,
    "info": COLOR_INFO,
    "success": COLOR_SUCCESS,
    "warning": COLOR_WARNING,
    "danger": COLOR_DANGER,
    "pending": COLOR_PENDING,
}
BUTTON_RADIUS_PX = 4
BUTTON_BASE_STYLE = f"""
QPushButton {{
    min-height: 24px;
    min-width: 72px;
    padding: 4px 10px;
    border: 1px solid #d0d7de;
    border-radius: {BUTTON_RADIUS_PX}px;
    background-color: #f6f8fa;
    color: #24292f;
}}
QPushButton:hover {{
    background-color: #eef4ff;
    border-color: #8c959f;
}}
QPushButton:pressed {{
    background-color: #d8dee4;
    border-color: #6e7781;
}}
QPushButton:focus {{
    border-color: #0969da;
}}
QPushButton:disabled {{
    background-color: #f6f8fa;
    border-color: #d8dee4;
    color: #8c959f;
}}
"""



_RawQMessageBox = QMessageBox if QT_IMPORT_ERROR is None else None


class _GuiAttributeProxy:
    def __init__(self, name, fallback):
        self._name = name
        self._fallback = fallback

    def _target(self):
        package = sys.modules.get("app.gui")
        if package is not None:
            value = getattr(package, self._name, self._fallback)
            if value is not self:
                return value
        return self._fallback

    def __getattr__(self, item):
        return getattr(self._target(), item)

    def __call__(self, *args, **kwargs):
        return self._target()(*args, **kwargs)


def _package_attr(name, fallback):
    package = sys.modules.get("app.gui")
    if package is not None:
        value = getattr(package, name, fallback)
        if value is not fallback:
            return value
    return fallback


def _call_package_attr(name, fallback, *args, **kwargs):
    return _package_attr(name, fallback)(*args, **kwargs)


QMessageBox = _GuiAttributeProxy("QMessageBox", _RawQMessageBox)
from .. import accounts, ai, appconfig, chrome, db, diagnostics, editor, excel, image_paths, prompts
from .. import config as account_config
from ..workers import BaseWorker, run_worker as _raw_run_worker


def run_worker(*args, **kwargs):
    return _package_attr("run_worker", _raw_run_worker)(*args, **kwargs)


PLAINTEXT_SECRET_TITLE = "本地明文保存提示"
PLAINTEXT_API_KEY_WARNING = (
    "API Key 会以本地明文保存到 data/config/ai_models.json，仅供本机调用 AI 使用。"
    "该文件已 gitignore，UI 打码显示，日志/导出不记录明文。"
)
PLAINTEXT_PASSWORD_WARNING = (
    "密码会以本地明文保存到本地 SQLite，仅供人工参考，不会自动登录/自动填。"
    "数据库文件已 gitignore，请勿提交或分享。"
)


def _qcolor(color):
    return QColor(color)


def _status_base_color(status):
    if status == "running":
        return COLOR_INFO
    if status == "failed":
        return COLOR_DANGER
    if status in {"skipped", "cancelled"}:
        return COLOR_MUTED
    return None


def _status_level_color(level):
    return STATUS_LEVEL_COLORS.get(str(level or "muted"), COLOR_MUTED)


def _status_level_for_message(message, default="muted"):
    text = str(message or "")
    if any(keyword in text for keyword in ("失败", "错误", "异常", "未登录", "不可写", "点数不足", "阻止")):
        return "danger"
    if any(keyword in text for keyword in ("没有", "请先", "未配置", "不完整", "已取消", "不能", "无法")):
        return "warning"
    if any(
        keyword in text
        for keyword in (
            "完成",
            "成功",
            "已保存",
            "已回写",
            "已新增",
            "已删除",
            "已软删除",
            "已重置",
            "已刷新",
            "已修改",
            "已启动",
            "已复用",
            "已生成",
            "已新建",
            "已另存为",
            "已重命名",
        )
    ):
        return "success"
    if any(keyword in text for keyword in ("正在", "开始", "进度", "检测中")):
        return "info"
    return default


def _emit_status(callback, message, level=None):
    if callback is None:
        return
    actual_level = level or _status_level_for_message(message)
    try:
        callback(str(message), level=actual_level)
    except TypeError:
        callback(str(message))


def _danger_metric_text(text, active):
    if not active:
        return text
    return f'<span style="color:{COLOR_DANGER}; font-weight:600;">{text}</span>'


def _outline_button_style(object_name, color, hover_bg="#f6f8fa", pressed_bg="#f6f8fa"):
    return (
        f"QPushButton#{object_name} {{ "
        f"color: {color}; border-color: {color}; font-weight: 600; "
        "}"
        f"QPushButton#{object_name}:hover {{ "
        f"background-color: {hover_bg}; border-color: {color}; "
        "}"
        f"QPushButton#{object_name}:pressed {{ "
        f"background-color: {pressed_bg}; border-color: {color}; "
        "}"
        f"QPushButton#{object_name}:disabled {{ "
        "color: #8c959f; border-color: #d8dee4; "
        "}"
    )


def _warning_outline_button_style(object_name):
    return _outline_button_style(
        object_name,
        COLOR_WARNING,
        hover_bg="#fff8f0",
        pressed_bg="#ffedd5",
    )


def _danger_outline_button_style(object_name):
    return _outline_button_style(
        object_name,
        COLOR_DANGER,
        hover_bg="#fff1f0",
        pressed_bg=COLOR_DANGER_BG,
    )


def _login_status_display(status):
    return f"● {status or '未知'}"


def _login_status_color(status):
    status_text = str(status or "")
    if status_text == "已登录":
        return _qcolor(COLOR_SUCCESS)
    if status_text == "检测中":
        return _qcolor(COLOR_INFO)
    if "未登录" in status_text or "失败" in status_text:
        return _qcolor(COLOR_DANGER)
    return _qcolor(COLOR_MUTED)


def _warning_dot_icon(size=12):
    pixmap = QPixmap(size, size)
    pixmap.fill(Qt.transparent)
    painter = QPainter(pixmap)
    painter.setRenderHint(QPainter.Antialiasing)
    painter.setPen(Qt.NoPen)
    painter.setBrush(QColor(COLOR_WARNING))
    margin = max(1, size // 6)
    painter.drawEllipse(margin, margin, size - margin * 2, size - margin * 2)
    painter.end()
    return QIcon(pixmap)


def _build_empty_state_card(object_name, button_text="前往账号管理"):
    card = QWidget()
    card.setObjectName(object_name)
    card.setStyleSheet(
        f"QWidget#{object_name} {{ "
        "background: #f6f8fa; border: 1px solid #d0d7de; "
        "border-radius: 6px; padding: 10px; "
        "}"
    )
    layout = QHBoxLayout(card)
    layout.setContentsMargins(12, 10, 12, 10)
    label = QLabel("")
    label.setWordWrap(True)
    button = QPushButton(button_text)
    button.setObjectName(f"{object_name}Button")
    button.setVisible(False)
    layout.addWidget(label, 1)
    layout.addWidget(button)
    card.setVisible(False)
    return card, label, button


def _set_empty_state(card, label, button, message=None, show_button=False):
    active = bool(message)
    card.setVisible(active)
    label.setText(message or "")
    button.setVisible(active and show_button)


BATCH_PROGRESS_FIELDS = [
    ("total", "总数"),
    ("imported", "导入"),
    ("collected", "已采集"),
    ("generated", "已生成"),
    ("applied", "已更新"),
    ("failed", "失败"),
    ("skipped", "略过"),
]


def _summarize_batch_progress(tasks):
    summary = {key: 0 for key, _label in BATCH_PROGRESS_FIELDS}
    task_rows = list(tasks or [])
    summary["total"] = len(task_rows)
    for task in task_rows:
        status = getattr(task, "status", None)
        stage = getattr(task, "stage", None)
        if status == "failed":
            summary["failed"] += 1
        elif status == "skipped":
            summary["skipped"] += 1
        elif stage == "applied":
            summary["applied"] += 1
        elif stage == "generated":
            summary["generated"] += 1
        elif stage == "collected":
            summary["collected"] += 1
        else:
            summary["imported"] += 1
    return summary


def _format_batch_progress(summary):
    parts = [f"{label}{summary.get(key, 0)}" for key, label in BATCH_PROGRESS_FIELDS]
    return "批次进度：" + " · ".join(parts)


def _build_batch_progress_overview(object_name):
    label = QLabel("")
    label.setObjectName(object_name)
    label.setWordWrap(True)
    label.setStyleSheet(
        f"QLabel#{object_name} {{ "
        "background: #f6f8fa; border: 1px solid #d0d7de; "
        "border-radius: 6px; padding: 8px 10px; color: #24292f; "
        "}"
    )
    label.setVisible(False)
    return label


def _set_batch_progress_overview(label, tasks):
    summary = _summarize_batch_progress(tasks)
    active = summary["total"] > 0
    label.setVisible(active)
    label.setText(_format_batch_progress(summary) if active else "")


def _database_path(db_path=None, config=None) -> str:
    return db_path or appconfig.db_path(config)


def _write_reset_run_log(db_path, task, action, message):
    run_id = db.create_run_log(
        "reset",
        total=1,
        options={
            "action": action,
            "task_id": getattr(task, "id", None),
            "alias": getattr(task, "alias", None),
            "item_id": getattr(task, "item_id", None),
        },
        path=db_path,
    )
    db.add_run_log_event(
        run_id,
        message,
        task_id=getattr(task, "id", None),
        alias=getattr(task, "alias", None),
        item_id=getattr(task, "item_id", None),
        path=db_path,
    )
    db.finish_run_log(
        run_id,
        status="done",
        done=1,
        success_count=1,
        failed_count=0,
        summary_json={
            "action": action,
            "task_id": getattr(task, "id", None),
            "alias": getattr(task, "alias", None),
            "item_id": getattr(task, "item_id", None),
        },
        path=db_path,
    )
    return run_id


def _safe_create_run_log(run_type, db_path=None, dry_run=False, total=0, options=None):
    try:
        return db.create_run_log(
            run_type,
            dry_run=dry_run,
            total=total,
            options=options or {},
            path=db_path,
        )
    except Exception:
        return None


def _safe_finish_run_log(run_id, db_path=None, **fields):
    if run_id is None:
        return
    try:
        db.finish_run_log(run_id, path=db_path, **fields)
    except Exception:
        return


def _safe_add_run_log_event(
    run_id,
    message,
    db_path=None,
    task=None,
    account=None,
    level="info",
    task_id=None,
    alias=None,
    item_id=None,
):
    safe_message = diagnostics.redact_log_text(message)
    if task is not None:
        task_id = getattr(task, "id", task_id)
        alias = getattr(task, "alias", alias)
        item_id = getattr(task, "item_id", item_id)
    if account is not None:
        alias = getattr(account, "alias", alias)
    if run_id is None:
        return safe_message
    try:
        db.add_run_log_event(
            run_id,
            safe_message,
            task_id=task_id,
            alias=alias,
            item_id=item_id,
            level=level,
            path=db_path,
        )
    except Exception:
        pass
    return safe_message


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


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

__all__ = [name for name in globals() if not name.startswith("__")]