fix:修复了清除缓存功能的缺失

electron/main.ts

@@ -482,6 +482,40 @@ function registerIpcHandlers() {
     return analyticsService.getTimeDistribution()
   })
 
+  // 缓存管理
+  ipcMain.handle('cache:clearAnalytics', async () => {
+    return analyticsService.clearCache()
+  })
+
+  ipcMain.handle('cache:clearImages', async () => {
+    const imageResult = await imageDecryptService.clearCache()
+    const emojiResult = chatService.clearCaches({ includeMessages: false, includeContacts: false, includeEmojis: true })
+    const errors = [imageResult, emojiResult]
+      .filter((result) => !result.success)
+      .map((result) => result.error)
+      .filter(Boolean) as string[]
+    if (errors.length > 0) {
+      return { success: false, error: errors.join('; ') }
+    }
+    return { success: true }
+  })
+
+  ipcMain.handle('cache:clearAll', async () => {
+    const [analyticsResult, imageResult] = await Promise.all([
+      analyticsService.clearCache(),
+      imageDecryptService.clearCache()
+    ])
+    const chatResult = chatService.clearCaches()
+    const errors = [analyticsResult, imageResult, chatResult]
+      .filter((result) => !result.success)
+      .map((result) => result.error)
+      .filter(Boolean) as string[]
+    if (errors.length > 0) {
+      return { success: false, error: errors.join('; ') }
+    }
+    return { success: true }
+  })
+
   // 群聊分析相关
   ipcMain.handle('groupAnalytics:getGroupChats', async () => {
     return groupAnalyticsService.getGroupChats()

electron/preload.ts

@@ -140,6 +140,13 @@ contextBridge.exposeInMainWorld('electronAPI', {
     }
   },
 
+  // 缓存管理
+  cache: {
+    clearAnalytics: () => ipcRenderer.invoke('cache:clearAnalytics'),
+    clearImages: () => ipcRenderer.invoke('cache:clearImages'),
+    clearAll: () => ipcRenderer.invoke('cache:clearAll')
+  },
+
   // 群聊分析
   groupAnalytics: {
     getGroupChats: () => ipcRenderer.invoke('groupAnalytics:getGroupChats'),

electron/services/analyticsService.ts

@@ -1,7 +1,7 @@
 import { ConfigService } from './config'
 import { wcdbService } from './wcdbService'
 import { join } from 'path'
-import { readFile, writeFile } from 'fs/promises'
+import { readFile, writeFile, rm } from 'fs/promises'
 import { app } from 'electron'
 
 export interface ChatStatistics {
@@ -528,6 +528,18 @@ class AnalyticsService {
       return { success: false, error: String(e) }
     }
   }
+
+  async clearCache(): Promise<{ success: boolean; error?: string }> {
+    this.aggregateCache = null
+    this.fallbackAggregateCache = null
+    this.aggregatePromise = null
+    try {
+      await rm(this.getCacheFilePath(), { force: true })
+      return { success: true }
+    } catch (e) {
+      return { success: false, error: String(e) }
+    }
+  }
 }
 
 export const analyticsService = new AnalyticsService()

electron/services/contactCacheService.ts

@@ -1,5 +1,5 @@
 import { join, dirname } from 'path'
-import { existsSync, mkdirSync, readFileSync, writeFileSync } from 'fs'
+import { existsSync, mkdirSync, readFileSync, writeFileSync, rmSync } from 'fs'
 import { app } from 'electron'
 
 export interface ContactCacheEntry {
@@ -72,4 +72,13 @@ export class ContactCacheService {
       console.error('ContactCacheService: 保存缓存失败', error)
     }
   }
+
+  clear(): void {
+    this.cache = {}
+    try {
+      rmSync(this.cacheFilePath, { force: true })
+    } catch (error) {
+      console.error('ContactCacheService: 清理缓存失败', error)
+    }
+  }
 }

electron/services/imageDecryptService.ts

@@ -2,7 +2,7 @@ import { app, BrowserWindow } from 'electron'
 import { basename, dirname, extname, join } from 'path'
 import { pathToFileURL } from 'url'
 import { existsSync, mkdirSync, readdirSync, readFileSync, statSync, appendFileSync } from 'fs'
-import { writeFile } from 'fs/promises'
+import { writeFile, rm, readdir } from 'fs/promises'
 import crypto from 'crypto'
 import { Worker } from 'worker_threads'
 import { ConfigService } from './config'
@@ -1646,6 +1646,71 @@ export class ImageDecryptService {
 
     await writeFile(outputPath, decrypted)
   }
+
+  async clearCache(): Promise<{ success: boolean; error?: string }> {
+    this.resolvedCache.clear()
+    this.hardlinkCache.clear()
+    this.pending.clear()
+    this.updateFlags.clear()
+    this.cacheIndexed = false
+    this.cacheIndexing = null
+
+    const configured = this.configService.get('cachePath')
+    const root = configured
+      ? join(configured, 'Images')
+      : join(app.getPath('documents'), 'WeFlow', 'Images')
+
+    try {
+      if (!existsSync(root)) {
+        return { success: true }
+      }
+      const monthPattern = /^\d{4}-\d{2}$/
+      const clearFilesInDir = async (dirPath: string): Promise<void> => {
+        let entries: Array<{ name: string; isDirectory: () => boolean }>
+        try {
+          entries = await readdir(dirPath, { withFileTypes: true })
+        } catch {
+          return
+        }
+        for (const entry of entries) {
+          const fullPath = join(dirPath, entry.name)
+          if (entry.isDirectory()) {
+            await clearFilesInDir(fullPath)
+            continue
+          }
+          try {
+            await rm(fullPath, { force: true })
+          } catch { }
+        }
+      }
+      const traverse = async (dirPath: string): Promise<void> => {
+        let entries: Array<{ name: string; isDirectory: () => boolean }>
+        try {
+          entries = await readdir(dirPath, { withFileTypes: true })
+        } catch {
+          return
+        }
+        for (const entry of entries) {
+          const fullPath = join(dirPath, entry.name)
+          if (entry.isDirectory()) {
+            if (monthPattern.test(entry.name)) {
+              await clearFilesInDir(fullPath)
+            } else {
+              await traverse(fullPath)
+            }
+            continue
+          }
+          try {
+            await rm(fullPath, { force: true })
+          } catch { }
+        }
+      }
+      await traverse(root)
+      return { success: true }
+    } catch (e) {
+      return { success: false, error: String(e) }
+    }
+  }
 }
 
 export const imageDecryptService = new ImageDecryptService()

electron/services/messageCacheService.ts

@@ -1,5 +1,5 @@
 import { join, dirname } from 'path'
-import { existsSync, mkdirSync, readFileSync, writeFileSync } from 'fs'
+import { existsSync, mkdirSync, readFileSync, writeFileSync, rmSync } from 'fs'
 import { app } from 'electron'
 
 export interface SessionMessageCacheEntry {
@@ -65,4 +65,13 @@ export class MessageCacheService {
       console.error('MessageCacheService: 保存缓存失败', error)
     }
   }
+
+  clear(): void {
+    this.cache = {}
+    try {
+      rmSync(this.cacheFilePath, { force: true })
+    } catch (error) {
+      console.error('MessageCacheService: 清理缓存失败', error)
+    }
+  }
 }