feat: 不同平台的聊天数据支持合并(resolve #74)

electron/main/merger/index.ts

@@ -73,13 +73,14 @@ export async function parseFileInfo(filePath: string): Promise<FileParseInfo> {
 /**
  * 生成消息的唯一标识（用于去重和冲突检测）
  */
-function getMessageKey(msg: ParsedMessage): string {
+function getMessageKey(msg: ParsedMessage, senderPlatformIdOverride?: string): string {
   // 合并链路的去重语义需要和增量导入保持一致，否则两条链路会对重复消息得出不同结论。
   const normalizedContent = msg.content || null
+  const senderPlatformId = senderPlatformIdOverride || msg.senderPlatformId
   const hash = createHash('sha256')
   hash.update(String(msg.timestamp))
   hash.update('\0')
-  hash.update(msg.senderPlatformId)
+  hash.update(senderPlatformId)
   hash.update('\0')
   hash.update(normalizedContent === null ? 'null' : 'text')
   hash.update('\0')
@@ -93,6 +94,54 @@ function getParsedMessageDisplayName(msg: ParsedMessage): string {
   return msg.senderGroupNickname || msg.senderAccountName || msg.senderPlatformId
 }
 
+function getCollidingPlatformIds(
+  sources: Array<{ platform: string; members: Array<{ platformId: string }> }>
+): Set<string> {
+  const memberPlatformMap = new Map<string, Set<string>>()
+  for (const source of sources) {
+    for (const member of source.members) {
+      if (!memberPlatformMap.has(member.platformId)) {
+        memberPlatformMap.set(member.platformId, new Set())
+      }
+      memberPlatformMap.get(member.platformId)!.add(source.platform || 'unknown')
+    }
+  }
+
+  const collidingIds = new Set<string>()
+  for (const [platformId, platforms] of memberPlatformMap) {
+    if (platforms.size > 1) {
+      collidingIds.add(platformId)
+    }
+  }
+  return collidingIds
+}
+
+function normalizePlatformId(platformId: string, platform: string, collidingIds: Set<string>): string {
+  if (!collidingIds.has(platformId)) return platformId
+  return `${platform || 'unknown'}:${platformId}`
+}
+
+function getCollidingPlatformIdsFromMessages(
+  allMessages: Array<{ msg: ParsedMessage; source: string; platform: string }>
+): Set<string> {
+  const memberPlatformMap = new Map<string, Set<string>>()
+  for (const item of allMessages) {
+    const platformId = item.msg.senderPlatformId
+    if (!memberPlatformMap.has(platformId)) {
+      memberPlatformMap.set(platformId, new Set())
+    }
+    memberPlatformMap.get(platformId)!.add(item.platform || 'unknown')
+  }
+
+  const collidingIds = new Set<string>()
+  for (const [platformId, platforms] of memberPlatformMap) {
+    if (platforms.size > 1) {
+      collidingIds.add(platformId)
+    }
+  }
+  return collidingIds
+}
+
 /**
  * 检查消息是否是纯图片消息
  * 纯图片消息格式如：[图片: xxx.jpg]、[图片: {xxx}.jpg] 等
@@ -104,11 +153,13 @@ function isImageOnlyMessage(content: string | undefined): boolean {
 }
 
 function detectConflictsInMessages(
-  allMessages: Array<{ msg: ParsedMessage; source: string }>,
+  allMessages: Array<{ msg: ParsedMessage; source: string; platform: string }>,
   conflicts: MergeConflict[]
 ): ConflictCheckResult {
+  const collidingIds = getCollidingPlatformIdsFromMessages(allMessages)
+
   // 按时间戳分组检测冲突
-  const timeGroups = new Map<number, Array<{ msg: ParsedMessage; source: string }>>()
+  const timeGroups = new Map<number, Array<{ msg: ParsedMessage; source: string; platform: string }>>()
   for (const item of allMessages) {
     const ts = item.msg.timestamp
     if (!timeGroups.has(ts)) {
@@ -133,9 +184,9 @@ function detectConflictsInMessages(
     if (items.length < 2) continue
 
     // 按发送者分组
-    const senderGroups = new Map<string, Array<{ msg: ParsedMessage; source: string }>>()
+    const senderGroups = new Map<string, Array<{ msg: ParsedMessage; source: string; platform: string }>>()
     for (const item of items) {
-      const sender = item.msg.senderPlatformId
+      const sender = normalizePlatformId(item.msg.senderPlatformId, item.platform || 'unknown', collidingIds)
       if (!senderGroups.has(sender)) {
         senderGroups.set(sender, [])
       }
@@ -154,7 +205,7 @@ function detectConflictsInMessages(
       }
 
       // 按内容分组（完全相同的内容会被分到一组，自动去重）
-      const contentGroups = new Map<string, Array<{ msg: ParsedMessage; source: string }>>()
+      const contentGroups = new Map<string, Array<{ msg: ParsedMessage; source: string; platform: string }>>()
       for (const item of senderItems) {
         const content = item.msg.content || ''
         if (!contentGroups.has(content)) {
@@ -232,7 +283,8 @@ function detectConflictsInMessages(
   // 计算去重后的消息数
   const uniqueKeys = new Set<string>()
   for (const item of allMessages) {
-    uniqueKeys.add(getMessageKey(item.msg))
+    const normalizedSenderId = normalizePlatformId(item.msg.senderPlatformId, item.platform || 'unknown', collidingIds)
+    uniqueKeys.add(getMessageKey(item.msg, normalizedSenderId))
   }
   console.log(`[Merger] Messages after dedup: ${uniqueKeys.size}`)
 
@@ -286,17 +338,26 @@ async function executeMerge(
   _conflictResolutions: MergeParams['conflictResolutions'],
   andAnalyze: boolean
 ): Promise<MergeResult> {
+  const collidingIds = getCollidingPlatformIds(
+    parseResults.map(({ result }) => ({
+      platform: result.meta.platform || 'unknown',
+      members: result.members.map((m) => ({ platformId: m.platformId })),
+    }))
+  )
+
   const memberMap = new Map<string, ChatLabMember>()
   for (const { result } of parseResults) {
+    const sourcePlatform = result.meta.platform || 'unknown'
     for (const member of result.members) {
-      const existing = memberMap.get(member.platformId)
+      const normalizedMemberPlatformId = normalizePlatformId(member.platformId, sourcePlatform, collidingIds)
+      const existing = memberMap.get(normalizedMemberPlatformId)
       if (existing) {
         if (member.accountName) existing.accountName = member.accountName
         if (member.groupNickname) existing.groupNickname = member.groupNickname
         if (member.avatar) existing.avatar = member.avatar
       } else {
-        memberMap.set(member.platformId, {
+        memberMap.set(normalizedMemberPlatformId, {
-          platformId: member.platformId,
+          platformId: normalizedMemberPlatformId,
           accountName: member.accountName,
           groupNickname: member.groupNickname,
           avatar: member.avatar,
@@ -308,13 +369,15 @@ async function executeMerge(
   const seenKeys = new Set<string>()
   const mergedMessages: ChatLabMessage[] = []
   for (const { result } of parseResults) {
+    const sourcePlatform = result.meta.platform || 'unknown'
     for (const msg of result.messages) {
-      const key = getMessageKey(msg)
+      const normalizedSenderPlatformId = normalizePlatformId(msg.senderPlatformId, sourcePlatform, collidingIds)
+      const key = getMessageKey(msg, normalizedSenderPlatformId)
       if (seenKeys.has(key)) continue
       seenKeys.add(key)
 
       mergedMessages.push({
-        sender: msg.senderPlatformId,
+        sender: normalizedSenderPlatformId,
         accountName: msg.senderAccountName,
         groupNickname: msg.senderGroupNickname,
         timestamp: msg.timestamp,
@@ -346,9 +409,12 @@ async function executeMerge(
     description: `合并自 ${parseResults.length} 个文件`,
   }
 
+  const uniquePlatforms = [...new Set(parseResults.map(({ result }) => result.meta.platform || 'unknown'))]
+  const mergedPlatform = uniquePlatforms.length === 1 ? uniquePlatforms[0] : 'mixed'
+
   const chatLabMeta = {
     name: outputName,
-    platform: parseResults[0].result.meta.platform as ChatPlatform,
+    platform: mergedPlatform as ChatPlatform,
     type: parseResults[0].result.meta.type as ChatType,
     sources,
     groupId,
@@ -410,7 +476,7 @@ export async function checkConflictsWithTempDb(
   filePaths: string[],
   tempDbCache: Map<string, string>
 ): Promise<ConflictCheckResult> {
-  const allMessages: Array<{ msg: ParsedMessage; source: string }> = []
+  const allMessages: Array<{ msg: ParsedMessage; source: string; platform: string }> = []
   const conflicts: MergeConflict[] = []
 
   console.log('[Merger] checkConflictsWithTempDb: Checking conflicts')
@@ -443,23 +509,13 @@ export async function checkConflictsWithTempDb(
       // 流式读取消息，避免一次性加载到内存
       reader.streamMessages(10000, (messages) => {
         for (const msg of messages) {
-          allMessages.push({ msg, source: sourceName })
+          allMessages.push({ msg, source: sourceName, platform: meta?.platform || 'unknown' })
         }
       })
     }
 
     console.log(`[Merger] Total messages: ${allMessages.length}`)
 
-    // 检查格式一致性
-    const platforms = readers.map((r) => r.getMeta()?.platform || 'unknown')
-    const uniquePlatforms = [...new Set(platforms)]
-    if (uniquePlatforms.length > 1) {
-      throw new Error(
-        `不支持合并不同格式的聊天记录。\n检测到的格式：${uniquePlatforms.join('、')}\n请确保所有文件使用相同的导出工具和格式。`
-      )
-    }
-    console.log('[Merger] Format check passed:', uniquePlatforms[0])
-
     return detectConflictsInMessages(allMessages, conflicts)
   } finally {
     // 关闭所有 reader
@@ -519,11 +575,20 @@ export async function mergeFilesWithTempDb(
       parseResults.push({ meta, members, source: sourceName, reader })
     }
 
+    const collidingIds = getCollidingPlatformIds(
+      parseResults.map(({ meta, members }) => ({
+        platform: meta.platform || 'unknown',
+        members: members.map((m) => ({ platformId: m.platformId })),
+      }))
+    )
+
     // 合并成员
     const memberMap = new Map<string, ChatLabMember>()
-    for (const { members } of parseResults) {
+    for (const { meta, members } of parseResults) {
+      const sourcePlatform = meta.platform || 'unknown'
       for (const member of members) {
-        const existing = memberMap.get(member.platformId)
+        const normalizedMemberPlatformId = normalizePlatformId(member.platformId, sourcePlatform, collidingIds)
+        const existing = memberMap.get(normalizedMemberPlatformId)
         if (existing) {
           if (member.accountName) {
             existing.accountName = member.accountName
@@ -536,8 +601,8 @@ export async function mergeFilesWithTempDb(
             existing.avatar = member.avatar
           }
         } else {
-          memberMap.set(member.platformId, {
+          memberMap.set(normalizedMemberPlatformId, {
-            platformId: member.platformId,
+            platformId: normalizedMemberPlatformId,
             accountName: member.accountName,
             groupNickname: member.groupNickname,
             avatar: member.avatar,
@@ -553,13 +618,15 @@ export async function mergeFilesWithTempDb(
     let totalProcessed = 0
     const startTime = Date.now()
 
-    for (const { reader, source } of parseResults) {
+    for (const { meta, reader, source } of parseResults) {
+      const sourcePlatform = meta.platform || 'unknown'
       const readerStartTime = Date.now()
       let readerCount = 0
 
       reader.streamMessages(10000, (messages) => {
         for (const msg of messages) {
-          const key = getMessageKey(msg)
+          const normalizedSenderPlatformId = normalizePlatformId(msg.senderPlatformId, sourcePlatform, collidingIds)
+          const key = getMessageKey(msg, normalizedSenderPlatformId)
 
           // 跳过已处理的消息（去重）
           if (seenKeys.has(key)) {
@@ -571,7 +638,7 @@ export async function mergeFilesWithTempDb(
           // 决定了哪个版本的消息先被处理，后续相同 key 的消息会被跳过
 
           mergedMessages.push({
-            sender: msg.senderPlatformId,
+            sender: normalizedSenderPlatformId,
             accountName: msg.senderAccountName,
             groupNickname: msg.senderGroupNickname,
             timestamp: msg.timestamp,
@@ -596,8 +663,9 @@ export async function mergeFilesWithTempDb(
 
     console.log(`[Merger] Messages after merge: ${mergedMessages.length}`)
 
-    // 确定平台（使用第一个文件的平台）
+    // 确定平台（跨平台时标记为 mixed）
-    const platform = parseResults[0].meta.platform
+    const uniquePlatforms = [...new Set(parseResults.map((r) => r.meta.platform || 'unknown'))]
+    const platform = uniquePlatforms.length === 1 ? uniquePlatforms[0] : 'mixed'
 
     // 确定群ID和群头像（仅当所有文件都来自同一个群时保留）
     const groupIds = new Set(parseResults.map((r) => r.meta.groupId).filter(Boolean))

src/i18n/locales/en-US/tools.json

@@ -32,9 +32,10 @@
     },
     "clickToEdit": "Click to edit name",
     "merge": "Merge Selected",
-    "mergeHint": "Select 2 or more chat records from the same platform to merge",
+    "mergeHint": "Select at least 2 chat records of the same chat type to merge",
     "mergeConfirmTitle": "Merge Chat Records",
     "mergeConfirmMessage": "This will merge {count} selected chat records. The original records will be deleted and a new merged record will be created.",
+    "mergeRiskWarning": "Critical warning: this merge cannot be undone, and cross-platform context differences may cause semantic confusion. Please back up your original data before continuing.",
     "mergeSteps": {
       "exporting": "Exporting chat records...",
       "parsing": "Parsing files...",

src/i18n/locales/ja-JP/tools.json

@@ -32,9 +32,10 @@
     },
     "clickToEdit": "クリックして名前を編集",
     "merge": "選択項目を結合",
-    "mergeHint": "結合するには同じプラットフォームのチャット履歴を 2 件以上選択してください",
+    "mergeHint": "結合するには同じチャット種別の履歴を 2 件以上選択してください",
     "mergeConfirmTitle": "チャット履歴を結合",
     "mergeConfirmMessage": "選択した {count} 件のチャット履歴を結合します。元の履歴は削除され、新しい統合履歴が作成されます。",
+    "mergeRiskWarning": "重要な警告：この結合は元に戻せず、プラットフォーム間の文脈差により意味が混在する可能性があります。続行前に元データをバックアップしてください。",
     "mergeSteps": {
       "exporting": "チャット履歴をエクスポート中...",
       "parsing": "ファイルを解析中...",

src/i18n/locales/zh-CN/tools.json

@@ -32,9 +32,10 @@
     },
     "clickToEdit": "点击编辑名称",
     "merge": "合并选中",
-    "mergeHint": "选择 2 个以上同平台的聊天记录才能合并",
+    "mergeHint": "选择 2 个以上同聊天类型的聊天记录才能合并",
     "mergeConfirmTitle": "合并聊天记录",
-    "mergeConfirmMessage": "将合并选中的 {count} 个聊天记录。合并后原记录将被删除，生成一条新的合并记录。",
+    "mergeConfirmMessage": "将合并选中的 {count} 个聊天记录。合并后原记录会被删除，并生成一条新的合并记录。",
+    "mergeRiskWarning": "强提醒：合并后不可恢复，且由于跨平台上下文差异，聊天语义可能出现错位或混乱。请确认你已备份原始数据并理解风险。",
     "mergeSteps": {
       "exporting": "正在导出聊天记录...",
       "parsing": "正在解析文件...",

src/i18n/locales/zh-TW/tools.json

@@ -32,9 +32,10 @@
     },
     "clickToEdit": "點擊即可編輯名稱",
     "merge": "合併所選項目",
-    "mergeHint": "選擇 2 個以上同平台的聊天紀錄才能合併",
+    "mergeHint": "選擇 2 個以上同聊天類型的聊天紀錄才能合併",
     "mergeConfirmTitle": "合併聊天紀錄",
     "mergeConfirmMessage": "即將合併所選的 {count} 個聊天紀錄。合併後原始紀錄會被刪除，並建立一筆新的合併紀錄。",
+    "mergeRiskWarning": "強提醒：合併後無法復原，且跨平台上下文差異可能導致語意錯位或混亂。請先備份原始資料並確認你已理解風險。",
     "mergeSteps": {
       "exporting": "正在匯出聊天紀錄...",
       "parsing": "正在解析檔案...",

src/pages/settings/components/BatchManageTab.vue

@@ -194,12 +194,13 @@ const editingId = ref<string | null>(null)
 // 编辑中的名称
 const editingName = ref('')
 
-// 是否可以合并（选中 2 个以上同平台会话）
+const selectedMergeSessions = computed(() => sessions.value.filter((s) => selectedIds.value.has(s.id)))
+const selectedMergeTypes = computed(() => new Set(selectedMergeSessions.value.map((s) => s.type)))
+
+// 是否可以合并（选中 2 个以上同类型会话）
 const canMerge = computed(() => {
   if (selectedIds.value.size < 2) return false
-  const selectedSessions = sessions.value.filter((s) => selectedIds.value.has(s.id))
+  return selectedMergeTypes.value.size === 1
-  const platforms = new Set(selectedSessions.map((s) => s.platform))
-  return platforms.size === 1
 })
 
 // 全选状态（基于过滤后的列表）
@@ -269,6 +270,16 @@ function handleRowClick(index: number, id: string, event: MouseEvent) {
   lastClickedIndex.value = index
 }
 
+function handleRowMouseDown(event: MouseEvent) {
+  if (!event.shiftKey) return
+
+  const target = event.target as HTMLElement | null
+  if (target?.closest('input, textarea, [contenteditable="true"]')) return
+
+  // 避免浏览器默认的 Shift 文本范围选择，防止误选中行内文字
+  event.preventDefault()
+}
+
 // 判断是否选中
 function isSelected(id: string): boolean {
   return selectedIds.value.has(id)
@@ -606,6 +617,7 @@ onMounted(() => {
           isSelected(session.id) ? 'bg-pink-50 dark:bg-pink-900/20' : '',
           index !== sortedSessions.length - 1 ? 'border-b border-gray-100 dark:border-gray-800' : '',
         ]"
+        @mousedown="handleRowMouseDown"
         @click="handleRowClick(index, session.id, $event)"
       >
         <!-- 复选框 -->
@@ -694,7 +706,7 @@ onMounted(() => {
     </div>
 
     <!-- 合并确认弹窗 -->
-    <UModal v-model:open="showMergeModal">
+    <UModal v-model:open="showMergeModal" :ui="{ content: 'z-100' }">
       <template #content>
         <div class="p-4">
           <div class="mb-4 flex items-center gap-3">
@@ -710,10 +722,22 @@ onMounted(() => {
             {{ t('tools.batchManage.mergeConfirmMessage', { count: selectedIds.size }) }}
           </p>
 
+          <!-- 强提醒 -->
+          <div
+            class="mb-4 rounded-lg border border-red-200 bg-red-50 px-3 py-2 dark:border-red-800/50 dark:bg-red-900/20"
+          >
+            <div class="flex items-start gap-2">
+              <UIcon name="i-heroicons-exclamation-triangle" class="mt-0.5 h-4 w-4 shrink-0 text-red-600" />
+              <p class="text-xs leading-5 text-red-700 dark:text-red-300">
+                {{ t('tools.batchManage.mergeRiskWarning') }}
+              </p>
+            </div>
+          </div>
+
           <!-- 选中的会话预览 -->
           <div class="mb-4 max-h-40 overflow-y-auto rounded-lg border border-gray-200 dark:border-gray-700">
             <div
-              v-for="session in sessions.filter((s) => selectedIds.has(s.id))"
+              v-for="session in selectedMergeSessions"
               :key="session.id"
               class="flex items-center gap-2 border-b border-gray-100 px-3 py-2 last:border-b-0 dark:border-gray-800"
             >