通知

app/api/routes/news.py

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+"""通知（お知らせ）路由：从 Redis 读取 worker 抓取的账号通知。
+
+worker（pruchase_jhw）定时抓取骏河屋 action_news 页面，把每条通知按 data_id
+作为 field 写入 Redis Hash（key 见 redis_keys.news_hash）。本路由读取该 Hash，
+按 data_id 倒序（新→旧）返回，只读不删除。Redis 读取沿用 session_store 复用的连接，
+与 scrape 路由保持一致。
+"""
+from __future__ import annotations
+
+import json
+import logging
+from typing import Any
+
+from fastapi import APIRouter, Depends, Query
+
+from app.api.dependencies import get_container, require_bearer_token
+from app.core.container import ServiceContainer
+from app.models.scrape import ApiResponse, NewsItemData
+from surugaya_common import redis_keys
+
+logger = logging.getLogger(__name__)
+
+router = APIRouter(prefix="/api", tags=["news"])
+
+
+def _news_sort_key(item: dict[str, Any]) -> tuple[int, int]:
+    """排序键：优先按 data_id 数值倒序，非数值退化到最小，保证排序稳定。"""
+    raw = str(item.get("data_id", "")).strip()
+    if raw.isdigit():
+        return (1, int(raw))
+    return (0, 0)
+
+
+@router.get(
+    "/news",
+    response_model=ApiResponse[list[NewsItemData]],
+    dependencies=[Depends(require_bearer_token)],
+)
+async def list_news(
+        limit: int | None = Query(default=None, ge=1, le=500, description="返回条数上限，省略则返回全部"),
+        container: ServiceContainer = Depends(get_container),
+) -> ApiResponse[list[NewsItemData]]:
+    """读取通知列表（按 data_id 倒序，新→旧），只读不删除。"""
+    if container.session_store._redis is None:
+        return ApiResponse[list[NewsItemData]](
+            success=False,
+            msg="Redis 未配置",
+            data=None,
+            code=500,
+        )
+
+    # dev/prod 由本服务 app_env 推导，需与 worker 写入端（APP_ENV）保持一致。
+    is_dev = "1" if container.settings.app_env == "dev" else "0"
+    raw_map = await container.session_store._redis.hgetall(redis_keys.news_hash(is_dev))
+
+    items: list[dict[str, Any]] = []
+    for data_id, raw_value in raw_map.items():
+        try:
+            items.append(json.loads(raw_value))
+        except (json.JSONDecodeError, TypeError):
+            logger.warning("通知 data_id=%s 的 JSON 解析失败，已跳过。", data_id)
+
+    items.sort(key=_news_sort_key, reverse=True)
+    if limit is not None and limit > 0:
+        items = items[:limit]
+
+    return ApiResponse[list[NewsItemData]](
+        success=True,
+        msg="success",
+        data=[NewsItemData(**item) for item in items],
+        code=0,
+    )