feat: 导出功能

src/shared/export.ts

@@ -0,0 +1,56 @@
+import type { Message } from './types'
+
+export type ExportFormat = 'html' | 'csv' | 'json' | 'markdown'
+export type ExportMessageKind =
+  | 'text'
+  | 'image'
+  | 'video'
+  | 'voice'
+  | 'sticker'
+  | 'share'
+  | 'location'
+  | 'system'
+
+export type ExportNameMode = 'groupNickname' | 'remark' | 'wechatNickname'
+
+export interface ExportRequest {
+  jobId: string
+  userMd5: string
+  name: string
+  format: ExportFormat
+  outputName: string
+  startTime?: number
+  endTime?: number
+  kinds: ExportMessageKind[]
+  includeMedia: boolean
+  includeAvatars?: boolean
+  avatarUrls?: Record<string, string>
+  nameMode?: ExportNameMode
+  nameMap?: Record<string, string>
+  zip?: boolean
+}
+
+export interface ExportJobProgress {
+  jobId: string
+  phase: 'reading' | 'writing' | 'completed' | 'cancelled' | 'failed'
+  processed: number
+  total?: number
+  percent?: number
+  outputPath?: string
+  error?: string
+}
+
+export interface ExportResult {
+  success: boolean
+  outputPath?: string
+  messageCount?: number
+  error?: string
+}
+export type ExportRendererApi = {
+  startExport: (request: ExportRequest) => Promise<ExportResult>
+  cancelExport: (jobId: string) => Promise<{ success: boolean }>
+  revealExport: (path: string) => Promise<{ success: boolean; error?: string }>
+  onExportProgress: (callback: (progress: ExportJobProgress) => void) => () => void
+}
+
+export type ExportMessage = Message