feat: 实现采购任务安全演练 (#71)

This commit is contained in:
chengma
2026-08-09 23:39:37 +08:00
parent dbc08dc0ec
commit 311d55f0da
7 changed files with 1162 additions and 7 deletions
+75
View File
@@ -0,0 +1,75 @@
"""PDD 采购演练适配层的稳定边界。
应用服务只依赖本文件中的小接口,不直接认识 uiautomator2。接口故意不提供
“提交订单”或“付款”方法,因此演练代码没有可误调用的真实下单入口。
"""
from __future__ import annotations
from abc import ABC, abstractmethod
from dataclasses import dataclass, field
from typing import Mapping
@dataclass(frozen=True)
class PurchasePageState:
"""一次重新读取页面后得到的采购相关事实。"""
page_kind: str
goods_id: str
selected_options: Mapping[str, str] = field(default_factory=dict)
quantity: int = 0
price_cent: int = 0
candidate_count: int = 1
class PddPurchaseError(RuntimeError):
"""适配层失败,包含稳定代码、步骤和是否可安全重试。"""
def __init__(
self,
code: str,
message: str,
*,
step: str,
retryable: bool = False,
diagnostics: Mapping[str, object] | None = None,
) -> None:
super().__init__(message)
self.code = str(code or "PURCHASE_ADAPTER_ERROR")
self.message = str(message or "PDD 采购演练失败")
self.step = str(step or "purchase_prepare")
self.retryable = bool(retryable)
self.diagnostics = dict(diagnostics or {})
class PddPurchaseAdapter(ABC):
"""一台设备的一次采购演练会话;只能由创建它的工作线程使用。"""
@abstractmethod
def open_goods(self, goods_url: str) -> None:
"""通过商品链接打开 PDD 商品页。"""
@abstractmethod
def read_state(self) -> PurchasePageState:
"""重新读取当前页面,不返回缓存状态。"""
@abstractmethod
def select_options(self, options: Mapping[str, str]) -> None:
"""按完整动态规格对象精确选择,不做相似匹配。"""
@abstractmethod
def set_quantity(self, quantity: int) -> None:
"""设置采购数量。"""
@abstractmethod
def enter_confirmation(self) -> None:
"""进入最终提交前确认页,但不得提交订单。"""
@abstractmethod
def stop_before_submit(self) -> None:
"""在提交订单按钮之前停止并保持页面可供人工核对。"""
@abstractmethod
def close(self) -> None:
"""释放设备会话;不得在此方法中产生页面点击。"""
+466
View File
@@ -0,0 +1,466 @@
"""一条本地采购任务的安全演练流程。
本模块固定为 ``dry_run``。它会核对商品、动态规格、数量和价格,并停在最终
提交订单之前;代码中没有提交订单或付款入口。
"""
from __future__ import annotations
from dataclasses import dataclass
from datetime import datetime, timezone
from typing import Callable, Mapping
from .admin_gateway import AdminGateway, AdminGatewayError, ClientInfo
from .pdd_purchase_adapter import (
PddPurchaseAdapter,
PddPurchaseError,
PurchasePageState,
)
from .task_models import OutboxEventRecord, OutboxEventType, TaskStatus
from .task_repository import TaskRepository
def utc_now_iso() -> str:
"""返回精确到秒的 UTC ISO 8601 时间。"""
return datetime.now(timezone.utc).isoformat(timespec="seconds").replace(
"+00:00", "Z"
)
@dataclass(frozen=True)
class PurchaseTarget:
"""从已领取任务中校验出的采购目标。"""
goods_id: str
goods_url: str
options: Mapping[str, str]
quantity: int
max_price_cent: int
@dataclass(frozen=True)
class PurchaseTaskOutcome:
"""采购工作线程返回给协调层的简短结果。"""
kind: str
message: str
task_id: str = ""
PurchaseAdapterFactory = Callable[
[str, Callable[[], bool]], PddPurchaseAdapter
]
class PurchaseTaskService:
"""只执行本地已保存的采购任务,不领取新任务。"""
def __init__(
self,
gateway: AdminGateway,
repository: TaskRepository,
client: ClientInfo,
device_address: str,
adapter_factory: PurchaseAdapterFactory,
*,
cancelled: Callable[[], bool] = lambda: False,
) -> None:
self._gateway = gateway
self._repository = repository
self._client = client
self._device_address = str(device_address or "").strip()
self._factory = adapter_factory
self._cancelled = cancelled
def execute_one_local(self) -> PurchaseTaskOutcome:
"""先补交结果,再执行最早的本地待执行采购任务。"""
pending = self._repository.next_pending_outbox()
if pending is not None:
return self._submit(pending)
if not self._device_address:
raise ValueError("请先在设置页选择并保存 Android 设备")
task = self._repository.next_purchase_task()
if task is None:
return PurchaseTaskOutcome("no_task", "暂无本地待执行的采购任务")
return self.execute_selected(task.remote_task_id)
def execute_selected(self, remote_task_id: str) -> PurchaseTaskOutcome:
"""对指定的本地采购任务执行一次演练。"""
if not self._device_address:
raise ValueError("请先在设置页选择并保存 Android 设备")
if self._cancelled():
return PurchaseTaskOutcome(
"cancelled", "采购演练已在开始前取消", remote_task_id
)
started = self._repository.start_purchase_run(
remote_task_id, self._device_address
)
adapter: PddPurchaseAdapter | None = None
step = "purchase_prepare"
try:
target = self._target_from_task(started.task)
adapter = self._factory(self._device_address, self._cancelled)
step = "purchase_open_goods"
self._enter_step(remote_task_id, started.attempt_id, step)
adapter.open_goods(target.goods_url)
step = "purchase_verify_goods"
self._enter_step(remote_task_id, started.attempt_id, step)
state = adapter.read_state()
self._validate_identity(state, target, "goods")
step = "purchase_select_options"
self._enter_step(remote_task_id, started.attempt_id, step)
self._validate_identity(adapter.read_state(), target, "goods")
adapter.select_options(target.options)
step = "purchase_verify_options"
self._enter_step(remote_task_id, started.attempt_id, step)
state = adapter.read_state()
self._validate_selected_options(state, target)
step = "purchase_set_quantity"
self._enter_step(remote_task_id, started.attempt_id, step)
self._validate_selected_options(adapter.read_state(), target)
adapter.set_quantity(target.quantity)
step = "purchase_verify_quantity_price"
self._enter_step(remote_task_id, started.attempt_id, step)
state = adapter.read_state()
self._validate_checkout_values(state, target)
step = "purchase_enter_confirmation"
self._enter_step(remote_task_id, started.attempt_id, step)
self._validate_checkout_values(adapter.read_state(), target)
adapter.enter_confirmation()
step = "purchase_verify_confirmation"
self._enter_step(remote_task_id, started.attempt_id, step)
state = adapter.read_state()
if state.page_kind != "order_confirmation":
raise PddPurchaseError(
"PURCHASE_CONFIRMATION_NOT_REACHED",
"没有到达最终提交前确认页,已停止演练",
step=step,
)
self._validate_checkout_values(state, target)
step = "purchase_dry_run_stopped"
self._enter_step(remote_task_id, started.attempt_id, step)
adapter.stop_before_submit()
result = self._result_data(target, state)
event = self._repository.save_purchase_result(
remote_task_id, started.attempt_id, result
)
except PddPurchaseError as exc:
event = self._save_failure(
remote_task_id,
started.attempt_id,
exc.code,
exc.message,
exc.retryable,
exc.step or step,
exc.diagnostics,
)
except Exception as exc:
event = self._save_failure(
remote_task_id,
started.attempt_id,
"PURCHASE_UNEXPECTED",
f"采购演练在“{step}”发生未知错误:{exc}",
False,
step,
{},
)
finally:
if adapter is not None:
adapter.close()
return self._submit(event)
def _enter_step(
self, remote_task_id: str, attempt_id: str, step: str
) -> None:
"""先持久化步骤,再检查停止请求。"""
self._repository.update_purchase_step(
remote_task_id, attempt_id, step
)
if self._cancelled():
raise PddPurchaseError(
"PURCHASE_CANCELLED",
"用户已请求停止采购演练",
step=step,
)
@staticmethod
def _target_from_task(task: object) -> PurchaseTarget:
payload_root = getattr(task, "admin_payload", None)
if not isinstance(payload_root, Mapping):
raise PddPurchaseError(
"PURCHASE_TASK_INVALID",
"采购任务原始数据不是对象",
step="purchase_prepare",
)
payload = payload_root.get("payload")
if not isinstance(payload, Mapping):
raise PddPurchaseError(
"PURCHASE_TASK_INVALID",
"采购任务缺少 payload 对象",
step="purchase_prepare",
)
goods_url = str(payload.get("goods_url") or "").strip()
goods_id = str(payload.get("goods_id") or "").strip()
options = payload.get("options")
quantity = payload.get("quantity")
max_price_cent = payload.get("max_price_cent")
if not goods_url or not goods_id:
raise PddPurchaseError(
"PURCHASE_TASK_INVALID",
"采购任务缺少商品链接或商品编号",
step="purchase_prepare",
)
if not isinstance(options, Mapping) or not options:
raise PddPurchaseError(
"PURCHASE_TASK_INVALID",
"采购任务缺少动态规格 options",
step="purchase_prepare",
)
normalized_options: dict[str, str] = {}
for key, value in options.items():
checked_key = str(key or "").strip()
checked_value = str(value or "").strip()
if not checked_key or not checked_value:
raise PddPurchaseError(
"PURCHASE_TASK_INVALID",
"采购任务 options 的名称和值都不能为空",
step="purchase_prepare",
)
normalized_options[checked_key] = checked_value
if isinstance(quantity, bool) or not isinstance(quantity, int) or quantity <= 0:
raise PddPurchaseError(
"PURCHASE_TASK_INVALID",
"采购数量必须是大于 0 的整数",
step="purchase_prepare",
)
if (
isinstance(max_price_cent, bool)
or not isinstance(max_price_cent, int)
or max_price_cent <= 0
):
raise PddPurchaseError(
"PURCHASE_TASK_INVALID",
"人民币价格上限必须是大于 0 的整数分",
step="purchase_prepare",
)
return PurchaseTarget(
goods_id,
goods_url,
normalized_options,
quantity,
max_price_cent,
)
@staticmethod
def _validate_identity(
state: PurchasePageState, target: PurchaseTarget, expected_page: str
) -> None:
PurchaseTaskService._validate_common_state(state)
if state.page_kind != expected_page:
raise PddPurchaseError(
"PDD_PAGE_UNKNOWN",
f"当前页面不是预期的 {expected_page} 页面,已停止演练",
step="purchase_verify_goods",
)
if state.goods_id != target.goods_id:
raise PddPurchaseError(
"PURCHASE_GOODS_MISMATCH",
"当前 PDD 商品与采购任务不一致,已停止演练",
step="purchase_verify_goods",
)
@staticmethod
def _validate_selected_options(
state: PurchasePageState, target: PurchaseTarget
) -> None:
PurchaseTaskService._validate_common_state(state)
if state.goods_id != target.goods_id:
raise PddPurchaseError(
"PURCHASE_GOODS_MISMATCH",
"选择规格后商品编号发生变化,已停止演练",
step="purchase_verify_options",
)
if dict(state.selected_options) != dict(target.options):
raise PddPurchaseError(
"PURCHASE_OPTIONS_MISMATCH",
"当前选中规格与采购任务不完全一致,已停止演练",
step="purchase_verify_options",
)
@staticmethod
def _validate_checkout_values(
state: PurchasePageState, target: PurchaseTarget
) -> None:
PurchaseTaskService._validate_selected_options(state, target)
if state.quantity != target.quantity:
raise PddPurchaseError(
"PURCHASE_QUANTITY_MISMATCH",
"当前数量与采购任务不一致,已停止演练",
step="purchase_verify_quantity_price",
)
if state.price_cent <= 0:
raise PddPurchaseError(
"PURCHASE_PRICE_MISSING",
"无法读取稳定的当前人民币价格,已停止演练",
step="purchase_verify_quantity_price",
)
if state.price_cent > target.max_price_cent:
raise PddPurchaseError(
"PURCHASE_PRICE_EXCEEDED",
(
f"当前价格 {state.price_cent} 分超过上限 "
f"{target.max_price_cent} 分,已停止演练"
),
step="purchase_verify_quantity_price",
)
@staticmethod
def _validate_common_state(state: PurchasePageState) -> None:
if state.page_kind == "captcha":
raise PddPurchaseError(
"PDD_PAGE_CAPTCHA",
"PDD 出现安全验证,请人工处理",
step="purchase_page_check",
)
if state.page_kind == "login_required":
raise PddPurchaseError(
"PDD_PAGE_LOGIN_REQUIRED",
"PDD 登录状态失效,请人工登录后再处理",
step="purchase_page_check",
)
if state.page_kind in {"unknown", "risk_control", "payment"}:
raise PddPurchaseError(
"PDD_PAGE_UNKNOWN",
"PDD 出现未知、风控或支付页面,已停止演练",
step="purchase_page_check",
)
if state.candidate_count != 1:
raise PddPurchaseError(
"PURCHASE_AMBIGUOUS_TARGET",
"页面存在多个候选目标,无法安全确认,已停止演练",
step="purchase_page_check",
)
def _save_failure(
self,
remote_task_id: str,
attempt_id: str,
code: str,
message: str,
retryable: bool,
step: str,
diagnostics: Mapping[str, object],
) -> OutboxEventRecord:
if code == "PURCHASE_CANCELLED":
status = TaskStatus.CANCELLED
elif retryable:
status = TaskStatus.RETRY_WAIT
else:
status = TaskStatus.MANUAL_REVIEW
return self._repository.save_purchase_failure(
remote_task_id,
attempt_id,
status,
code,
message,
retryable,
step,
dict(diagnostics),
)
def _submit(self, event: OutboxEventRecord) -> PurchaseTaskOutcome:
task_id = self._repository.outbox_task_id(event.id)
self._repository.mark_outbox_sending(event.id)
try:
if event.event_type is OutboxEventType.TASK_FAILURE:
receipt = self._gateway.submit_failure(
task_id, event.idempotency_key, event.payload_json
)
else:
receipt = self._gateway.submit_result(
task_id, event.idempotency_key, event.payload_json
)
if not receipt.accepted:
raise AdminGatewayError(
"ADMIN_RESULT_NOT_ACCEPTED",
"Admin 未确认接收采购演练结果",
False,
)
except AdminGatewayError as exc:
message = str(exc)
if exc.retryable:
self._repository.mark_outbox_retry(event.id, message)
return PurchaseTaskOutcome(
"result_pending",
f"任务 {task_id} 演练结果已保存在本地,等待提交 Admin:{message}",
task_id,
)
self._repository.mark_outbox_failed(event.id, message)
return PurchaseTaskOutcome(
"manual_review",
f"任务 {task_id} 演练结果被 Admin 拒绝:{message}",
task_id,
)
self._repository.mark_outbox_sent(event.id)
if event.event_type is OutboxEventType.TASK_FAILURE:
return PurchaseTaskOutcome(
"failed",
f"任务 {task_id} 采购演练未完成,失败信息已提交 Admin",
task_id,
)
return PurchaseTaskOutcome(
"succeeded",
f"任务 {task_id} 演练完成并已提交 Admin;没有提交订单",
task_id,
)
def _result_data(
self, target: PurchaseTarget, state: PurchasePageState
) -> dict[str, object]:
return {
"schema_version": 1,
"goods_id": target.goods_id,
"goods_url": target.goods_url,
"purchase": {
"mode": "dry_run",
"requested": {
"options": dict(target.options),
"quantity": target.quantity,
"max_price_cent": target.max_price_cent,
},
"confirmed": {
"options": dict(state.selected_options),
"quantity": state.quantity,
"unit_price_cent": state.price_cent,
"total_price_cent": state.price_cent * state.quantity,
},
"confirmation_reached": True,
"order_submitted": False,
"payment_attempted": False,
"order_no": None,
"ordered_at": None,
"ordered_at_raw": None,
"match_status": "not_submitted",
},
"captured_at": utc_now_iso(),
"source": {
"client_id": self._client.client_id,
"device_address": self._device_address,
"mode": "dry_run",
},
}
+1 -1
View File
@@ -187,7 +187,7 @@ class OutboxEventRecord:
@dataclass(frozen=True)
class StartedTaskRun:
"""已进入执行状态的一次采集尝试。"""
"""已进入执行状态的一次采集或采购尝试。"""
task: TaskDetail
attempt_id: str
+318 -1
View File
@@ -210,6 +210,20 @@ class TaskRepository:
connection.close()
return self._to_detail(row) if row is not None else None
def next_purchase_task(self) -> Optional[TaskDetail]:
"""返回最早的一条本地待执行采购任务。"""
connection = open_database(self._db_path)
try:
row = connection.execute(
"SELECT * FROM pdd_tasks"
" WHERE task_type = 'purchase' AND status = 'claimed'"
" ORDER BY received_at ASC, id ASC LIMIT 1"
).fetchone()
finally:
connection.close()
return self._to_detail(row) if row is not None else None
def validate_collect_rerun(self, remote_task_id: str) -> TaskDetail:
"""校验任务能否重新采集,成功时返回任务详情。"""
@@ -341,6 +355,291 @@ class TaskRepository:
finally:
connection.close()
def start_purchase_run(
self, remote_task_id: str, device_address: str
) -> StartedTaskRun:
"""原子地开始一次采购演练并创建独立运行记录。"""
now = utc_now_iso()
attempt_id = str(uuid4())
connection = open_database(self._db_path)
try:
with connection:
row = connection.execute(
"SELECT * FROM pdd_tasks WHERE remote_task_id = ?",
(remote_task_id,),
).fetchone()
if row is None:
raise ValueError(f"任务 {remote_task_id} 不存在")
if row["task_type"] != TaskType.PURCHASE.value:
raise ValueError("当前任务不是采购任务")
if row["status"] != TaskStatus.CLAIMED.value:
raise ValueError(
f"采购任务状态 {row['status']} 不能开始演练"
)
attempt_no = int(
connection.execute(
"SELECT COALESCE(MAX(attempt_no), 0) + 1"
" FROM task_runs WHERE task_id = ?",
(row["id"],),
).fetchone()[0]
)
connection.execute(
"UPDATE pdd_tasks SET status = 'running',"
" current_step = 'purchase_prepare',"
" started_at = COALESCE(started_at, ?),"
" last_error_code = NULL, last_error_message = NULL,"
" updated_at = ? WHERE id = ?",
(now, now, row["id"]),
)
connection.execute(
"INSERT INTO task_runs (task_id, attempt_id, attempt_no,"
" device_address, run_status, current_step, started_at,"
" created_at, updated_at) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)",
(
row["id"],
attempt_id,
attempt_no,
device_address,
RunStatus.RUNNING.value,
"purchase_prepare",
now,
now,
now,
),
)
task = self.get_task(remote_task_id)
assert task is not None
return StartedTaskRun(task, attempt_id, attempt_no)
finally:
connection.close()
def update_purchase_step(
self, remote_task_id: str, attempt_id: str, step: str
) -> None:
"""在进入采购关键步骤前,同时持久化任务和本次运行的步骤。"""
checked_step = str(step or "").strip()
if not checked_step:
raise ValueError("采购步骤不能为空")
now = utc_now_iso()
connection = open_database(self._db_path)
try:
with connection:
task = connection.execute(
"SELECT id, task_type, status FROM pdd_tasks"
" WHERE remote_task_id = ?",
(remote_task_id,),
).fetchone()
if task is None:
raise ValueError(f"任务 {remote_task_id} 不存在")
if task["task_type"] != TaskType.PURCHASE.value:
raise ValueError("当前任务不是采购任务")
if task["status"] != TaskStatus.RUNNING.value:
raise ValueError("采购任务当前不在执行中")
cursor = connection.execute(
"UPDATE task_runs SET current_step = ?, updated_at = ?"
" WHERE task_id = ? AND attempt_id = ?"
" AND run_status = 'running'",
(checked_step, now, task["id"], attempt_id),
)
if cursor.rowcount != 1:
raise ValueError("采购执行记录不存在或已经结束")
connection.execute(
"UPDATE pdd_tasks SET current_step = ?, updated_at = ?"
" WHERE id = ?",
(checked_step, now, task["id"]),
)
finally:
connection.close()
def save_purchase_result(
self,
remote_task_id: str,
attempt_id: str,
pdd_data: Dict[str, object],
) -> OutboxEventRecord:
"""原子保存采购演练结果,并创建采购结果 Outbox。"""
now = utc_now_iso()
connection = open_database(self._db_path)
try:
with connection:
task = connection.execute(
"SELECT id, version, task_type FROM pdd_tasks"
" WHERE remote_task_id = ?",
(remote_task_id,),
).fetchone()
if task is None:
raise ValueError(f"任务 {remote_task_id} 不存在")
if task["task_type"] != TaskType.PURCHASE.value:
raise ValueError("当前任务不是采购任务")
payload = {
"task_version": task["version"],
"attempt_id": attempt_id,
"result_type": "purchase",
"completed_at": now,
"pdd_data": pdd_data,
}
result_json = json.dumps(pdd_data, ensure_ascii=False)
idempotency_key = (
f"{remote_task_id}:{attempt_id}:result-v1"
)
connection.execute(
"UPDATE pdd_tasks SET status = 'result_pending',"
" current_step = 'submit_result', pdd_data = ?,"
" price_cent = ?, finished_at = ?, updated_at = ?"
" WHERE id = ?",
(
result_json,
self._purchase_result_price(pdd_data),
now,
now,
task["id"],
),
)
cursor = connection.execute(
"UPDATE task_runs SET run_status = 'succeeded',"
" current_step = 'submit_result', result_data = ?,"
" finished_at = ?, updated_at = ?"
" WHERE task_id = ? AND attempt_id = ?"
" AND run_status = 'running'",
(
result_json,
now,
now,
task["id"],
attempt_id,
),
)
if cursor.rowcount != 1:
raise ValueError("采购执行记录不存在或已经结束")
event_cursor = connection.execute(
"INSERT INTO outbox_events (task_id, event_type,"
" idempotency_key, payload_json, status, created_at, updated_at)"
" VALUES (?, 'purchase_result', ?, ?, 'pending', ?, ?)",
(
task["id"],
idempotency_key,
json.dumps(payload, ensure_ascii=False),
now,
now,
),
)
event_id = int(event_cursor.lastrowid)
event = self.get_outbox_event(event_id)
assert event is not None
return event
finally:
connection.close()
def save_purchase_failure(
self,
remote_task_id: str,
attempt_id: str,
status: TaskStatus,
error_code: str,
error_message: str,
retryable: bool,
step: str,
diagnostics: Optional[Dict[str, object]] = None,
) -> OutboxEventRecord:
"""原子保存采购演练失败,并创建失败 Outbox。"""
if status not in {
TaskStatus.RETRY_WAIT,
TaskStatus.MANUAL_REVIEW,
TaskStatus.FAILED,
TaskStatus.CANCELLED,
}:
raise ValueError("失败状态无效")
checked_step = str(step or "purchase_prepare").strip()
now = utc_now_iso()
connection = open_database(self._db_path)
try:
with connection:
task = connection.execute(
"SELECT id, version, task_type FROM pdd_tasks"
" WHERE remote_task_id = ?",
(remote_task_id,),
).fetchone()
if task is None:
raise ValueError(f"任务 {remote_task_id} 不存在")
if task["task_type"] != TaskType.PURCHASE.value:
raise ValueError("当前任务不是采购任务")
payload = {
"task_version": task["version"],
"attempt_id": attempt_id,
"status": status.value,
"error": {
"code": error_code,
"message": error_message,
"retryable": retryable,
"step": checked_step,
},
"diagnostics": diagnostics or {"artifacts": []},
"reported_at": now,
}
connection.execute(
"UPDATE pdd_tasks SET status = ?, current_step = ?,"
" retry_count = retry_count + ?, last_error_code = ?,"
" last_error_message = ?, finished_at = ?, updated_at = ?"
" WHERE id = ?",
(
status.value,
"failed",
1 if status is TaskStatus.RETRY_WAIT else 0,
error_code,
error_message,
now,
now,
task["id"],
),
)
run_status = {
TaskStatus.CANCELLED: RunStatus.CANCELLED,
TaskStatus.MANUAL_REVIEW: RunStatus.MANUAL_REVIEW,
}.get(status, RunStatus.FAILED)
cursor = connection.execute(
"UPDATE task_runs SET run_status = ?, current_step = ?,"
" error_code = ?, error_message = ?, finished_at = ?,"
" updated_at = ? WHERE task_id = ? AND attempt_id = ?"
" AND run_status = 'running'",
(
run_status.value,
checked_step,
error_code,
error_message,
now,
now,
task["id"],
attempt_id,
),
)
if cursor.rowcount != 1:
raise ValueError("采购执行记录不存在或已经结束")
idempotency_key = (
f"{remote_task_id}:{attempt_id}:failure-v1"
)
event_cursor = connection.execute(
"INSERT INTO outbox_events (task_id, event_type,"
" idempotency_key, payload_json, status, created_at, updated_at)"
" VALUES (?, 'task_failure', ?, ?, 'pending', ?, ?)",
(
task["id"],
idempotency_key,
json.dumps(payload, ensure_ascii=False),
now,
now,
),
)
event_id = int(event_cursor.lastrowid)
event = self.get_outbox_event(event_id)
assert event is not None
return event
finally:
connection.close()
def save_collect_result(
self,
remote_task_id: str,
@@ -543,7 +842,10 @@ class TaskRepository:
" WHERE id = ?",
(now, now, event_id),
)
if row["event_type"] == OutboxEventType.COLLECT_RESULT.value:
if row["event_type"] in {
OutboxEventType.COLLECT_RESULT.value,
OutboxEventType.PURCHASE_RESULT.value,
}:
connection.execute(
"UPDATE pdd_tasks SET status = 'succeeded',"
" current_step = 'completed', updated_at = ? WHERE id = ?",
@@ -579,6 +881,21 @@ class TaskRepository:
]
return min(prices) if prices else None
@staticmethod
def _purchase_result_price(
pdd_data: Dict[str, object]
) -> Optional[int]:
purchase = pdd_data.get("purchase")
if not isinstance(purchase, dict):
return None
confirmed = purchase.get("confirmed")
if not isinstance(confirmed, dict):
return None
price = confirmed.get("unit_price_cent")
if isinstance(price, bool) or not isinstance(price, int):
return None
return price
@staticmethod
def _to_outbox(row: sqlite3.Row) -> OutboxEventRecord:
return OutboxEventRecord(
+278
View File
@@ -0,0 +1,278 @@
"""采购任务演练应用服务测试;全部使用 Mock,不连接真实手机。"""
import tempfile
import unittest
from pathlib import Path
from src.admin_gateway import (
AdminTask,
AndroidDeviceInfo,
ClaimCapabilities,
ClientInfo,
)
from src.mock_admin_gateway import MockAdminGateway
from src.pdd_purchase_adapter import PddPurchaseAdapter, PurchasePageState
from src.purchase_task_service import PurchaseTaskService
from src.task_models import NewClaimedTask, TaskStatus, TaskType
from src.task_repository import TaskRepository
OPTIONS = {"color": "黑色", "size": "L", "bundle": "标准版"}
class RecordingDryRunAdapter(PddPurchaseAdapter):
"""只记录调用的演练适配器,不提供提交订单能力。"""
def __init__(
self,
*,
goods_id: str = "737116531267",
price_cent: int = 4200,
candidate_count: int = 1,
forced_page: str = "",
wrong_options: bool = False,
) -> None:
self.goods_id = goods_id
self.price_cent = price_cent
self.candidate_count = candidate_count
self.forced_page = forced_page
self.wrong_options = wrong_options
self.options = {}
self.quantity = 0
self.page_kind = "goods"
self.calls = []
def open_goods(self, goods_url: str) -> None:
self.calls.append(("open_goods", goods_url))
def read_state(self) -> PurchasePageState:
self.calls.append(("read_state",))
options = self.options
if self.wrong_options and options:
options = {**options, "size": "XL"}
return PurchasePageState(
page_kind=self.forced_page or self.page_kind,
goods_id=self.goods_id,
selected_options=dict(options),
quantity=self.quantity,
price_cent=self.price_cent,
candidate_count=self.candidate_count,
)
def select_options(self, options) -> None:
self.calls.append(("select_options", dict(options)))
self.options = dict(options)
def set_quantity(self, quantity: int) -> None:
self.calls.append(("set_quantity", quantity))
self.quantity = quantity
def enter_confirmation(self) -> None:
self.calls.append(("enter_confirmation",))
self.page_kind = "order_confirmation"
def stop_before_submit(self) -> None:
self.calls.append(("stop_before_submit",))
def close(self) -> None:
self.calls.append(("close",))
class PurchaseTaskServiceTest(unittest.TestCase):
def setUp(self) -> None:
self.temp_dir = tempfile.TemporaryDirectory()
self.repository = TaskRepository(
Path(self.temp_dir.name) / "client.db"
)
self.gateway = MockAdminGateway()
self.client = ClientInfo("CLIENT-001", "测试客户端")
def tearDown(self) -> None:
self.temp_dir.cleanup()
def _prepare_task(self, *, task_id: str = "PUR-001") -> None:
task = AdminTask(
task_id=task_id,
task_type=TaskType.PURCHASE,
version=1,
priority=10,
payload={
"goods_url": (
"https://mobile.yangkeduo.com/goods.html?"
"goods_id=737116531267"
),
"goods_id": "737116531267",
"options": dict(OPTIONS),
"quantity": 2,
"max_price_cent": 5000,
},
)
self.gateway.enqueue_task(task, self.client.client_id)
claimed = self.gateway.claim_next(
self.client,
ClaimCapabilities(
device=AndroidDeviceInfo("USB-001"),
supported_types=(TaskType.PURCHASE,),
purchase_mode="dry_run",
),
)
assert claimed is not None
self.repository.add_claimed_task(
NewClaimedTask(
remote_task_id=claimed.task_id,
task_type=claimed.task_type,
goods_url=str(claimed.payload["goods_url"]),
goods_id=str(claimed.payload["goods_id"]),
quantity=int(claimed.payload["quantity"]),
priority=claimed.priority,
version=claimed.version,
admin_payload={
"id": claimed.task_id,
"type": claimed.task_type.value,
"version": claimed.version,
"priority": claimed.priority,
"payload": dict(claimed.payload),
},
)
)
def _service(self, adapter: RecordingDryRunAdapter):
return PurchaseTaskService(
self.gateway,
self.repository,
self.client,
"USB-001",
lambda _address, _cancelled: adapter,
)
def test_dynamic_options_dry_run_stops_before_order_submission(self):
self._prepare_task()
adapter = RecordingDryRunAdapter()
outcome = self._service(adapter).execute_one_local()
self.assertEqual(outcome.kind, "succeeded")
self.assertIn("没有提交订单", outcome.message)
self.assertIn(("select_options", OPTIONS), adapter.calls)
self.assertIn(("set_quantity", 2), adapter.calls)
self.assertIn(("enter_confirmation",), adapter.calls)
self.assertIn(("stop_before_submit",), adapter.calls)
detail = self.repository.get_task("PUR-001")
assert detail is not None
self.assertEqual(detail.status, TaskStatus.SUCCEEDED)
purchase = detail.pdd_data["purchase"]
self.assertEqual(purchase["mode"], "dry_run")
self.assertEqual(purchase["requested"]["options"], OPTIONS)
self.assertEqual(purchase["confirmed"]["options"], OPTIONS)
self.assertFalse(purchase["order_submitted"])
self.assertFalse(purchase["payment_attempted"])
def test_price_above_limit_stops_before_confirmation(self):
self._prepare_task()
adapter = RecordingDryRunAdapter(price_cent=5001)
outcome = self._service(adapter).execute_one_local()
self.assertEqual(outcome.kind, "failed")
self.assertNotIn(("enter_confirmation",), adapter.calls)
detail = self.repository.get_task("PUR-001")
assert detail is not None
self.assertEqual(detail.status, TaskStatus.MANUAL_REVIEW)
self.assertEqual(detail.last_error_code, "PURCHASE_PRICE_EXCEEDED")
def test_result_submit_timeout_does_not_run_adapter_twice(self):
self._prepare_task()
adapter = RecordingDryRunAdapter()
self.gateway.timeout_next_call()
first = self._service(adapter).execute_one_local()
first_call_count = len(adapter.calls)
second = self._service(adapter).execute_one_local()
self.assertEqual(first.kind, "result_pending")
self.assertEqual(second.kind, "succeeded")
self.assertEqual(len(adapter.calls), first_call_count)
self.assertEqual(self.gateway.submission_count, 1)
def test_invalid_pages_and_ambiguous_target_fail_safely(self):
cases = (
("captcha", 1, "PDD_PAGE_CAPTCHA"),
("login_required", 1, "PDD_PAGE_LOGIN_REQUIRED"),
("unknown", 1, "PDD_PAGE_UNKNOWN"),
("", 2, "PURCHASE_AMBIGUOUS_TARGET"),
)
for index, (page, candidates, expected_code) in enumerate(cases):
with self.subTest(page=page, candidates=candidates):
task_id = f"PUR-BLOCK-{index}"
self._prepare_task(task_id=task_id)
adapter = RecordingDryRunAdapter(
forced_page=page,
candidate_count=candidates,
)
outcome = self._service(adapter).execute_selected(task_id)
self.assertEqual(outcome.kind, "failed")
self.assertNotIn(("enter_confirmation",), adapter.calls)
detail = self.repository.get_task(task_id)
assert detail is not None
self.assertEqual(detail.last_error_code, expected_code)
def test_wrong_goods_or_options_never_reaches_confirmation(self):
cases = (
({"goods_id": "OTHER"}, "PURCHASE_GOODS_MISMATCH"),
({"wrong_options": True}, "PURCHASE_OPTIONS_MISMATCH"),
)
for index, (kwargs, expected_code) in enumerate(cases):
with self.subTest(expected_code=expected_code):
task_id = f"PUR-MISMATCH-{index}"
self._prepare_task(task_id=task_id)
adapter = RecordingDryRunAdapter(**kwargs)
self._service(adapter).execute_selected(task_id)
self.assertNotIn(("enter_confirmation",), adapter.calls)
detail = self.repository.get_task(task_id)
assert detail is not None
self.assertEqual(detail.last_error_code, expected_code)
def test_purchase_task_with_missing_safety_fields_is_reported(self):
task_id = "PUR-INVALID"
task = AdminTask(
task_id=task_id,
task_type=TaskType.PURCHASE,
version=1,
priority=0,
payload={"goods_url": "https://example.test/goods"},
)
self.gateway.enqueue_task(task, self.client.client_id)
self.gateway.claim_next(
self.client,
ClaimCapabilities(supported_types=(TaskType.PURCHASE,)),
)
self.repository.add_claimed_task(
NewClaimedTask(
remote_task_id=task_id,
task_type=TaskType.PURCHASE,
goods_url="https://example.test/goods",
admin_payload={
"id": task_id,
"type": "purchase",
"version": 1,
"payload": dict(task.payload),
},
)
)
adapter = RecordingDryRunAdapter()
outcome = self._service(adapter).execute_selected(task_id)
self.assertEqual(outcome.kind, "failed")
self.assertNotIn(("open_goods", "https://example.test/goods"), adapter.calls)
detail = self.repository.get_task(task_id)
assert detail is not None
self.assertEqual(detail.last_error_code, "PURCHASE_TASK_INVALID")
if __name__ == "__main__":
unittest.main()
+6 -1
View File
@@ -89,7 +89,7 @@ client/
| 目录分层 | domain / application / infrastructure / workers / ui | 平铺在 `src/` 下:`db.py`、`db_schema.py`、`task_repository.py`、`settings_repository.py`、`task_models.py` 等,另有 `src/util/`、`src/demo1/` |
| 主按钮文案 | 「开始自动获取」⇄「停止自动获取」 | 已按持续串行模式实现 |
| Admin 网关 | `AdminGateway` + Mock/HTTP 两实现 | 登记、领取、结果和失败提交已实现 |
| 采集任务协调器 | `CollectTaskService` | 已实现单条采集任务流程;采购仍未接入 |
| 任务应用服务 | `CollectTaskService` / `PurchaseTaskService` | 采集已接入自动获取;采购已实现本地 `dry_run` 演练,领取与分派由后续工单接入 |
| Outbox 提交 | 从 `outbox_events` 取件重试 | 采集结果与失败已实现,重试不重复采集 |
| PDD 自动化 | `infrastructure/pdd/` 适配层 | `pdd_device_service.py` 与 `pdd_collect_service.py` 已接入采集主链 |
@@ -350,6 +350,11 @@ purchase(task, mode) -> PurchaseResult
reconcile_purchase(task, run) -> PurchaseResult | ManualReview
```
采购演练通过 `PddPurchaseAdapter` 的窄接口逐步读取最新页面状态。该接口只提供
打开商品、读取状态、精确选择动态规格、设置数量、进入提交前确认页和停止,
**不提供提交订单或付款方法**。这样即使应用层调用错误,也没有可误触的真实下单入口。
采购规格使用完整 `options` 对象精确比较,不假定只有颜色和尺码两个维度。
现有 `wait_goods_page`、规格面板坐标、颜色尺码选择和下单按钮定位函数可以迁移到该适配层。实验脚本中的硬编码商品、设备、文件路径和 `print` 不得进入正式服务。
PDD 页面可能出现登录失效、验证码、控件树不完整、A/B 页面、库存变化和价格变化。适配层必须返回结构化错误,不得把这些情况统一返回 `False`。
+18 -4
View File
@@ -544,18 +544,27 @@ CREATE TABLE app_settings (
"purchase": {
"mode": "dry_run",
"requested": {
"color": "黑色",
"size": "L",
"options": {
"color": "黑色",
"size": "L",
"bundle": "标准版"
},
"quantity": 2,
"max_price_cent": 4200
},
"confirmed": {
"color": "黑色",
"size": "L",
"options": {
"color": "黑色",
"size": "L",
"bundle": "标准版"
},
"quantity": 2,
"unit_price_cent": 3990,
"total_price_cent": 7980
},
"confirmation_reached": true,
"order_submitted": false,
"payment_attempted": false,
"order_no": null,
"ordered_at": null,
"ordered_at_raw": null,
@@ -564,6 +573,11 @@ CREATE TABLE app_settings (
}
```
`requested.options` 和 `confirmed.options` 都是动态对象,键名来自 Admin 和 PDD
页面,不允许写死成颜色、尺码,也不做相似匹配。`dry_run` 必须同时满足
`order_submitted=false`、`payment_attempted=false` 和
`match_status=not_submitted`;只表示已经安全到达最终提交前确认页。
真实下单后 `mode` 为 `live`,`match_status` 只能是 `matched`、`ambiguous` 或 `not_found`。只有 `matched` 可以自动报告采购成功。
## 9. JSON 兼容规则