本地收藏功能

src/web/api/favorites.ts

@@ -0,0 +1,76 @@
+import { Router } from "express";
+import type { BotDatabase } from "../../data/database.js";
+import type { Logger } from "../../logger.js";
+
+export function createFavoritesRouter(database: BotDatabase, logger: Logger): Router {
+  const router = Router();
+
+  // GET /api/favorites — 获取当前用户的所有收藏
+  router.get("/", (req, res) => {
+    const userId = req.user!.id;
+    const favorites = database.getFavorites(userId);
+    res.json({ favorites });
+  });
+
+  // POST /api/favorites — 添加收藏
+  router.post("/", (req, res) => {
+    const userId = req.user!.id;
+    const { platform, playlistId, name, coverUrl, songCount } = req.body;
+    if (!platform || !playlistId || !name) {
+      res.status(400).json({ error: "platform, playlistId, name are required" });
+      return;
+    }
+    try {
+      database.addFavorite(userId, {
+        platform,
+        playlistId,
+        name,
+        coverUrl: coverUrl ?? "",
+        songCount: songCount ?? 0,
+      });
+      logger.info({ userId, platform, playlistId, name }, "Playlist favorited");
+      res.json({ success: true });
+    } catch (err: unknown) {
+      const e = err as { code?: string };
+      if (e?.code === "SQLITE_CONSTRAINT_UNIQUE") {
+        res.status(409).json({ error: "already favorited" });
+        return;
+      }
+      logger.error({ err }, "Failed to add favorite");
+      res.status(500).json({ error: "internal error" });
+    }
+  });
+
+  // DELETE /api/favorites/:id — 取消收藏（只允许删除自己的）
+  router.delete("/:id", (req, res) => {
+    const userId = req.user!.id;
+    const favId = parseInt(req.params.id, 10);
+    if (isNaN(favId)) {
+      res.status(400).json({ error: "invalid id" });
+      return;
+    }
+    const favorites = database.getFavorites(userId);
+    const fav = favorites.find((f) => f.id === favId);
+    if (!fav) {
+      res.status(404).json({ error: "favorite not found" });
+      return;
+    }
+    database.removeFavorite(userId, fav.playlistId, fav.platform);
+    logger.info({ userId, playlistId: fav.playlistId, platform: fav.platform }, "Playlist unfavorited");
+    res.json({ success: true });
+  });
+
+  // GET /api/favorites/check?platform=netease&playlistId=xxx — 检查是否已收藏
+  router.get("/check", (req, res) => {
+    const userId = req.user!.id;
+    const { platform, playlistId } = req.query;
+    if (!platform || !playlistId) {
+      res.status(400).json({ error: "platform and playlistId required" });
+      return;
+    }
+    const favorited = database.isFavorited(userId, playlistId as string, platform as string);
+    res.json({ favorited });
+  });
+
+  return router;
+}