feat: 完善剩余功能

backend-deno/modules/lyrics.ts

@@ -4,6 +4,7 @@
  */
 
 import { MusicStatus } from "./apple_music.ts";
+import { DatabaseSync } from 'node:sqlite'
 
 export interface LyricsData {
   current_lyric_time: number | null;
@@ -37,14 +38,23 @@ let lyricsCache: LyricsCache = {
 };
 
 const DB_PATH = "./lyrics.db";
+const db = new DatabaseSync(DB_PATH);
 
 /**
  * 初始化数据库
  */
 export async function initDB(): Promise<void> {
   try {
-    // 确保歌词目录存在
-    await Deno.mkdir("./lyrics", { recursive: true });
+    db.exec(`
+      CREATE TABLE IF NOT EXISTS lyrics (
+        id INTEGER PRIMARY KEY AUTOINCREMENT,
+        track_name TEXT NOT NULL,
+        artist TEXT NOT NULL,
+        lyrics_text TEXT NOT NULL,
+        source TEXT NOT NULL,
+        deleted BOOLEAN NOT NULL DEFAULT 0
+      )
+    `);
     console.log(`数据库初始化完成: ${DB_PATH}`);
   } catch (error) {
     console.error(`数据库初始化失败: ${error}`);
@@ -72,11 +82,8 @@ async function loadLyricsFromDB(
   artist: string
 ): Promise<string | null> {
   try {
-    const filePath = `./lyrics/${encodeURIComponent(
-      trackName
-    )}_${encodeURIComponent(artist)}.lrc`;
-    const content = await Deno.readTextFile(filePath);
-    return content;
+    const content = db.prepare(`SELECT lyrics_text FROM lyrics WHERE track_name = ? AND artist = ?`).get(trackName, artist);
+    return content.lyrics_text;
   } catch (error) {
     return null;
   }
@@ -85,25 +92,29 @@ async function loadLyricsFromDB(
 /**
  * 保存歌词到数据库
  */
-async function saveLyrics(
+export async function saveLyrics(
   trackName: string,
   artist: string,
-  lyricsText: string
+  lyricsText: string,
+  source: string
 ): Promise<void> {
   try {
-    const filePath = `./lyrics/${encodeURIComponent(
-      trackName
-    )}_${encodeURIComponent(artist)}.lrc`;
-    await Deno.writeTextFile(filePath, lyricsText);
+    db.prepare(`DELETE FROM lyrics WHERE track_name = ? AND artist = ?`).run(trackName, artist);
+    db.prepare(`INSERT INTO lyrics (track_name, artist, lyrics_text, source) VALUES (?, ?, ?, ?)`).run(trackName, artist, lyricsText, source);
+    lyricsCache.track_name = trackName;
+    lyricsCache.artist = artist;
+    lyricsCache.lyrics_text = lyricsText;
+    lyricsCache.source = source;
+    console.log(`保存歌词成功: ${trackName} - ${artist}`);
   } catch (error) {
     console.error(`保存歌词失败: ${error}`);
   }
 }
 
 /**
- * 从网易云音乐 API 搜索歌词
+ * 从服务器 API 搜索歌词
  */
-async function searchLyrics(
+export async function searchLyrics(
   trackName: string,
   artistName: string
 ): Promise<string | null> {
@@ -234,6 +245,18 @@ function formatLrcLyrics(
   };
 }
 
+/**
+ * 删除歌词
+ */
+export async function deleteLyrics(trackName: string, artist: string): Promise<void> {
+  try {
+    db.prepare(`DELETE FROM lyrics WHERE track_name = ? AND artist = ?`).run(trackName, artist);
+    console.log(`删除歌词成功: ${trackName} - ${artist}`);
+  } catch (error) {
+    console.error(`删除歌词失败: ${error}`);
+  }
+}
+
 /**
  * 获取当前歌词数据
  */
@@ -276,9 +299,9 @@ export async function getLyricsData(status: MusicStatus): Promise<LyricsData> {
       const lyricsText = await searchLyrics(trackName || "", artist || "");
       if (lyricsText) {
         // 保存到数据库
-        await saveLyrics(trackName || "", artist || "", lyricsText);
+        await saveLyrics(trackName || "", artist || "", lyricsText, "server");
         lyricsCache.lyrics_text = lyricsText;
-        lyricsCache.source = "netease";
+        lyricsCache.source = "server";
       }
     }
   }