기능구현중

backend/api/google-group/messages.get.ts

@@ -0,0 +1,139 @@
+import { queryOne, execute } from '../../utils/db'
+import { requireAuth } from '../../utils/session'
+
+/**
+ * 구글 그룹 메시지 조회
+ * GET /api/google-group/messages
+ * 
+ * Gmail API로 그룹 이메일 조회
+ * 
+ * Query params:
+ * - groupEmail: 그룹 이메일 주소 (예: dev-team@company.com)
+ * - maxResults: 최대 결과 수 (기본 20)
+ * - after: 이 날짜 이후 메시지 (YYYY-MM-DD)
+ */
+export default defineEventHandler(async (event) => {
+  const session = await requireAuth(event)
+  const query = getQuery(event)
+  
+  const groupEmail = query.groupEmail as string
+  const maxResults = parseInt(query.maxResults as string) || 20
+  const after = query.after as string
+  
+  if (!groupEmail) {
+    throw createError({ statusCode: 400, message: '그룹 이메일이 필요합니다.' })
+  }
+  
+  // 사용자의 Google 토큰 조회
+  const employee = await queryOne<any>(`
+    SELECT google_access_token, google_refresh_token, google_token_expires_at
+    FROM wr_employee_info WHERE employee_id = $1
+  `, [session.employeeId])
+  
+  if (!employee?.google_access_token) {
+    throw createError({ 
+      statusCode: 401, 
+      message: 'Google 계정이 연결되지 않았습니다.' 
+    })
+  }
+  
+  let accessToken = employee.google_access_token
+  
+  // 토큰 만료 확인 및 갱신
+  if (employee.google_token_expires_at && new Date(employee.google_token_expires_at) < new Date()) {
+    accessToken = await refreshGoogleToken(session.employeeId, employee.google_refresh_token)
+  }
+  
+  try {
+    // Gmail API로 그룹 메일 검색
+    let searchQuery = `list:${groupEmail}`
+    if (after) {
+      searchQuery += ` after:${after}`
+    }
+    
+    const listResponse = await $fetch<any>('https://gmail.googleapis.com/gmail/v1/users/me/messages', {
+      headers: { 'Authorization': `Bearer ${accessToken}` },
+      query: {
+        q: searchQuery,
+        maxResults: maxResults
+      }
+    })
+    
+    if (!listResponse.messages || listResponse.messages.length === 0) {
+      return { messages: [], total: 0 }
+    }
+    
+    // 각 메시지의 상세 정보 조회
+    const messages = await Promise.all(
+      listResponse.messages.slice(0, maxResults).map(async (msg: any) => {
+        const detail = await $fetch<any>(`https://gmail.googleapis.com/gmail/v1/users/me/messages/${msg.id}`, {
+          headers: { 'Authorization': `Bearer ${accessToken}` },
+          query: { format: 'metadata', metadataHeaders: ['Subject', 'From', 'Date', 'To'] }
+        })
+        
+        const headers = detail.payload?.headers || []
+        const getHeader = (name: string) => headers.find((h: any) => h.name === name)?.value || ''
+        
+        return {
+          id: msg.id,
+          threadId: msg.threadId,
+          subject: getHeader('Subject'),
+          from: getHeader('From'),
+          to: getHeader('To'),
+          date: getHeader('Date'),
+          snippet: detail.snippet
+        }
+      })
+    )
+    
+    return {
+      messages,
+      total: listResponse.resultSizeEstimate || messages.length
+    }
+  } catch (e: any) {
+    console.error('Gmail API error:', e)
+    
+    if (e.status === 403) {
+      throw createError({
+        statusCode: 403,
+        message: 'Gmail 접근 권한이 없습니다. Google 로그인 시 권한을 허용해주세요.'
+      })
+    }
+    
+    throw createError({
+      statusCode: 500,
+      message: '그룹 메시지를 가져오는데 실패했습니다.'
+    })
+  }
+})
+
+/**
+ * Google 토큰 갱신
+ */
+async function refreshGoogleToken(employeeId: number, refreshToken: string): Promise<string> {
+  const config = useRuntimeConfig()
+  
+  const response = await $fetch<any>('https://oauth2.googleapis.com/token', {
+    method: 'POST',
+    body: new URLSearchParams({
+      client_id: config.googleClientId,
+      client_secret: config.googleClientSecret,
+      refresh_token: refreshToken,
+      grant_type: 'refresh_token'
+    }).toString(),
+    headers: { 'Content-Type': 'application/x-www-form-urlencoded' }
+  })
+  
+  if (response.access_token) {
+    await execute(`
+      UPDATE wr_employee_info 
+      SET google_access_token = $1, 
+          google_token_expires_at = NOW() + INTERVAL '${response.expires_in} seconds'
+      WHERE employee_id = $2
+    `, [response.access_token, employeeId])
+    
+    return response.access_token
+  }
+  
+  throw new Error('토큰 갱신 실패')
+}