1 files changed, 192 insertions, 16 deletions

diff --git a/app/api/sync/import/status/route.ts b/app/api/sync/import/status/route.ts
index c5b4b0bd..8b6144d6 100644
--- a/app/api/sync/import/status/route.ts
+++ b/app/api/sync/import/status/route.ts
@@ -1,8 +1,19 @@
-// app/api/sync/import/status/route.ts  
+// app/api/sync/status/route.ts
 import { NextRequest, NextResponse } from "next/server"
-import { importService } from "@/lib/vendor-document-list/import-service"
 import { getServerSession } from "next-auth"
 import { authOptions } from "@/app/api/auth/[...nextauth]/route"
+import db from "@/db/db"
+import { documents, revisions, documentAttachments, contracts, projects, vendors } from "@/db/schema"
+import { eq, and, sql, desc } from "drizzle-orm"
+
+interface SyncStatus {
+  syncEnabled: boolean
+  pendingChanges: number
+  syncedChanges: number
+  failedChanges: number
+  lastSyncAt?: string
+  error?: string
+}
 
 export async function GET(request: NextRequest) {
   try {
@@ -13,7 +24,7 @@ export async function GET(request: NextRequest) {
 
     const { searchParams } = new URL(request.url)
     const contractId = searchParams.get('contractId')
-    const sourceSystem = searchParams.get('sourceSystem') || 'DOLCE'
+    const targetSystem = searchParams.get('targetSystem') || 'SHI'
 
     if (!contractId) {
       return NextResponse.json(
@@ -22,20 +33,185 @@ export async function GET(request: NextRequest) {
       )
     }
 
-    const status = await importService.getImportStatus(
-      Number(contractId),
-      sourceSystem
-    )
+    // 🔥 안전하게 동기화 상태 조회
+    const syncStatus = await getSyncStatusSafely(Number(contractId), targetSystem)
+    
+    return NextResponse.json(syncStatus)
+    
+  } catch (error) {
+    console.error('Unexpected error in sync status API:', error)
+    
+    // 🔥 에러 시에도 200으로 응답하고 error 필드 포함
+    return NextResponse.json({
+      syncEnabled: false,
+      pendingChanges: 0,
+      syncedChanges: 0,
+      failedChanges: 0,
+      lastSyncAt: undefined,
+      error: '시스템 오류가 발생했습니다. 잠시 후 다시 시도해주세요.'
+    }, { status: 200 })
+  }
+}
+
+async function getSyncStatusSafely(contractId: number, targetSystem: string): Promise<SyncStatus> {
+  try {
+    // 1. 계약 정보 확인
+    const contractInfo = await db
+      .select({
+        projectCode: projects.code,
+        vendorCode: vendors.vendorCode,
+        contractStatus: contracts.status
+      })
+      .from(contracts)
+      .innerJoin(projects, eq(contracts.projectId, projects.id))
+      .innerJoin(vendors, eq(contracts.vendorId, vendors.id))
+      .where(eq(contracts.id, contractId))
+      .limit(1)
+
+    // 계약 정보가 없는 경우
+    if (!contractInfo || contractInfo.length === 0) {
+      return {
+        syncEnabled: false,
+        pendingChanges: 0,
+        syncedChanges: 0,
+        failedChanges: 0,
+        error: `계약 ${contractId}를 찾을 수 없습니다.`
+      }
+    }
+
+    const contract = contractInfo[0]
+
+    // 프로젝트 코드나 벤더 코드가 없는 경우
+    if (!contract.projectCode || !contract.vendorCode) {
+      return {
+        syncEnabled: false,
+        pendingChanges: 0,
+        syncedChanges: 0,
+        failedChanges: 0,
+        error: `계약 ${contractId}에 프로젝트 코드 또는 벤더 코드가 설정되지 않았습니다.`
+      }
+    }
+
+    // 2. 마지막 동기화 시간 조회
+    const [lastSync] = await db
+      .select({
+        lastSyncAt: sql<string>`MAX(${documents.externalSyncedAt})`
+      })
+      .from(documents)
+      .where(and(
+        eq(documents.contractId, contractId),
+        eq(documents.externalSystemType, targetSystem)
+      ))
+
+    // 3. 문서별 변경사항 분석
+    const documentStats = await db
+      .select({
+        id: documents.id,
+        docNumber: documents.docNumber,
+        updatedAt: documents.updatedAt,
+        externalSyncedAt: documents.externalSyncedAt,
+        syncStatus: documents.syncStatus
+      })
+      .from(documents)
+      .where(eq(documents.contractId, contractId))
+
+    let pendingChanges = 0
+    let syncedChanges = 0
+    let failedChanges = 0
+
+    // 각 문서의 동기화 상태 분석
+    for (const doc of documentStats) {
+      // 문서 자체가 변경되었는지 확인
+      const docNeedsSync = !doc.externalSyncedAt || 
+        (doc.updatedAt && doc.externalSyncedAt && doc.updatedAt > doc.externalSyncedAt)
+
+      if (docNeedsSync) {
+        if (doc.syncStatus === 'FAILED') {
+          failedChanges++
+        } else if (doc.syncStatus === 'SYNCED') {
+          syncedChanges++
+        } else {
+          pendingChanges++
+        }
+      }
+
+      // 해당 문서의 리비전 변경사항 확인
+      const revisionStats = await db
+        .select({
+          updatedAt: revisions.updatedAt,
+          externalSyncedAt: revisions.externalSyncedAt,
+          syncStatus: revisions.syncStatus
+        })
+        .from(revisions)
+        .innerJoin(documents, eq(revisions.documentId, documents.id))
+        .where(eq(documents.id, doc.id))
+
+      for (const revision of revisionStats) {
+        const revisionNeedsSync = !revision.externalSyncedAt || 
+          (revision.updatedAt && revision.externalSyncedAt && revision.updatedAt > revision.externalSyncedAt)
+
+        if (revisionNeedsSync) {
+          if (revision.syncStatus === 'FAILED') {
+            failedChanges++
+          } else if (revision.syncStatus === 'SYNCED') {
+            syncedChanges++
+          } else {
+            pendingChanges++
+          }
+        }
+      }
+
+      // 첨부파일 변경사항 확인
+      const attachmentStats = await db
+        .select({
+          updatedAt: documentAttachments.updatedAt,
+          externalSyncedAt: documentAttachments.externalSyncedAt,
+          syncStatus: documentAttachments.syncStatus
+        })
+        .from(documentAttachments)
+        .innerJoin(revisions, eq(documentAttachments.revisionId, revisions.id))
+        .innerJoin(documents, eq(revisions.documentId, documents.id))
+        .where(eq(documents.id, doc.id))
+
+      for (const attachment of attachmentStats) {
+        const attachmentNeedsSync = !attachment.externalSyncedAt || 
+          (attachment.updatedAt && attachment.externalSyncedAt && attachment.updatedAt > attachment.externalSyncedAt)
+
+        if (attachmentNeedsSync) {
+          if (attachment.syncStatus === 'FAILED') {
+            failedChanges++
+          } else if (attachment.syncStatus === 'SYNCED') {
+            syncedChanges++
+          } else {
+            pendingChanges++
+          }
+        }
+      }
+    }
+
+    // 4. 동기화 활성화 여부 확인
+    const syncEnabled = contract.contractStatus === 'ACTIVE' && 
+      Boolean(contract.projectCode) && 
+      Boolean(contract.vendorCode) &&
+      process.env[`SYNC_${targetSystem.toUpperCase()}_ENABLED`] === 'true'
+
+    return {
+      syncEnabled,
+      pendingChanges,
+      syncedChanges,
+      failedChanges,
+      lastSyncAt: lastSync?.lastSyncAt ? new Date(lastSync.lastSyncAt).toISOString() : undefined
+    }
 
-    return NextResponse.json(status)
   } catch (error) {
-    console.error('Failed to get import status:', error)
-    return NextResponse.json(
-      {
-        error: 'Failed to get import status',
-        message: error instanceof Error ? error.message : 'Unknown error'
-      },
-      { status: 500 }
-    )
+    console.error(`Failed to get sync status for contract ${contractId}:`, error)
+    
+    return {
+      syncEnabled: false,
+      pendingChanges: 0,
+      syncedChanges: 0,
+      failedChanges: 0,
+      error: error instanceof Error ? error.message : '동기화 상태를 확인할 수 없습니다.'
+    }
   }
 }
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