🐞 fix: 修复无法清空缓存

Author: imsyy

electron/main/database/CacheDB.ts

@@ -83,6 +83,12 @@ export class CacheDB {
     this.db.prepare("DELETE FROM kv_cache WHERE type = ?").run(type);
   }
 
+  /** 清空所有缓存并回收空间 */
+  clearAll() {
+    this.db.exec("DELETE FROM kv_cache");
+    this.db.exec("VACUUM");
+  }
+
   /** 列出某类缓存 */
   list(type: string): Omit<CacheEntry, "data">[] {
     return this.db

electron/main/ipc/ipc-cache.ts

@@ -99,6 +99,14 @@ const initCacheIpc = (): void => {
     },
   );
 
+  // 清空所有缓存
+  ipcMain.handle("cache-clear-all", (): Promise<CacheIpcResult<null>> => {
+    return withErrorCatch(async () => {
+      await cacheService.clearAll();
+      return null;
+    });
+  });
+
   // 获取所有缓存类型的总大小
   ipcMain.handle("cache-size", (): Promise<CacheIpcResult<number>> => {
     return withErrorCatch(async () => {

electron/main/services/CacheService.ts

@@ -388,6 +388,39 @@ export class CacheService {
     }
   }
 
+  /**
+   * 清空所有缓存
+   * 软清空：保留 DB 文件，仅清空数据和媒体文件
+   */
+  public async clearAll(): Promise<void> {
+    await this.init();
+
+    // 清空 DB 数据并回收空间
+    try {
+      this.db?.clearAll();
+    } catch (e) {
+      cacheLog.error("Failed to clear database:", e);
+    }
+
+    // 删除文件缓存目录内容
+    const fileTypes: CacheResourceType[] = ["music", "local-data"];
+    for (const type of fileTypes) {
+      const basePath = this.getCacheBasePath();
+      const dir = join(basePath, this.CACHE_SUB_DIR[type]);
+
+      try {
+        if (existsSync(dir)) {
+          // 删除目录并重建
+          await rm(dir, { recursive: true, force: true });
+          await mkdir(dir, { recursive: true });
+        }
+      } catch (e) {
+        cacheLog.error(`Failed to clear directory ${type}:`, e);
+      }
+      this.fileSizes[type] = 0;
+    }
+  }
+
   /**
    * 列出缓存文件
    */

src/components/Setting/LocalSetting.vue

@@ -339,7 +339,7 @@
 import { useSettingStore, useStatusStore } from "@/stores";
 import { changeLocalLyricPath, changeLocalMusicPath, formatFileSize } from "@/utils/helper";
 import { songLevelData, getSongLevelsData } from "@/utils/meta";
-import { useCacheManager, type CacheResourceType } from "@/core/resource/CacheManager";
+import { useCacheManager } from "@/core/resource/CacheManager";
 import { pick } from "lodash-es";
 
 const statusStore = useStatusStore();
@@ -435,17 +435,10 @@ const loadCacheSize = async () => {
 
 // 清空所有缓存目录
 const clearCache = async () => {
-  const types: CacheResourceType[] = ["music", "lyrics", "local-data", "list-data"];
-  let hasError = false;
-  for (const type of types) {
-    const res = await cacheManager.clear(type);
-    if (!res.success) {
-      hasError = true;
-    }
-  }
+  const res = await cacheManager.clearAll();
   await loadCacheSize();
-  if (hasError) {
-    window.$message.error("部分缓存清理失败");
+  if (!res.success) {
+    window.$message.error("缓存清理失败: " + (res.message || "未知错误"));
   } else {
     window.$message.success("缓存已清空");
   }

src/core/resource/CacheManager.ts

@@ -105,6 +105,13 @@ class CacheManager {
     return this.invoke("cache-clear", type);
   }
 
+  /**
+   * 清空所有缓存
+   */
+  clearAll(): Promise<CacheResult<null>> {
+    return this.invoke("cache-clear-all");
+  }
+
   /**
    * 获取所有缓存类型的总大小（字节）
    */