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path: root/lib/knox-sync/organization-sync-service.ts
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'use server';

import * as cron from 'node-cron';
import db from '@/db/db';
import { organization as organizationTable } from '@/db/schema/knox/organization';
import {
  searchOrganizations,
  Organization,
} from '@/lib/knox-api/employee/employee';
import { eq } from 'drizzle-orm';
import {
  KNOX_COMPANIES,
  delay,
  API_CALL_DELAY_MS,
  checkTimeRestriction,
  checkApiLimitStatus,
  initializeApiTracker,
  logSyncStart,
  logSyncComplete,
  logSchedulerInfo,
} from './common';

// CRON 스케줄 (기본: 매일 04:15)
const CRON_STRING = process.env.KNOX_ORGANIZATION_SYNC_CRON || '15 4 * * *';

// 애플리케이션 기동 시 최초 한 번 실행 여부
const DO_FIRST_RUN = process.env.KNOX_ORGANIZATION_SYNC_FIRST_RUN === 'true';

async function insertOrganizations(orgs: Organization[]) {
  if (!orgs.length) return;

  console.log(`[KNOX-SYNC] ${orgs.length}개 조직 정보 삽입 시작`);
  const startTime = Date.now();

  const rows = orgs.map((o) => ({
    companyCode: o.companyCode,
    departmentCode: o.departmentCode,
    companyName: o.companyName,
    departmentLevel: o.departmentLevel,
    departmentName: o.departmentName,
    departmentOrder: o.departmentOrder,
    enCompanyName: o.enCompanyName,
    enDepartmentName: o.enDepartmentName,
    enManagerTitle: o.enManagerTitle,
    enSubOrgCode: o.enSubOrgCode,
    inDepartmentCode: o.inDepartmentCode,
    lowDepartmentYn: o.lowDepartmentYn,
    managerId: o.managerId,
    managerName: o.managerName,
    managerTitle: o.managerTitle,
    preferredLanguage: o.preferredLanguage,
    subOrgCode: o.subOrgCode,
    subOrgName: o.subOrgName,
    uprDepartmentCode: o.uprDepartmentCode,
    enUprDepartmentName: o.enUprDepartmentName,
    uprDepartmentName: o.uprDepartmentName,
    hiddenDepartmentYn: o.hiddenDepartmentYn,
    corpCode: o.corpCode,
    corpName: o.corpName,
    enCorpName: o.enCorpName,
    raw: o as unknown as Record<string, unknown>,
  }));

  await db.insert(organizationTable).values(rows);

  const endTime = Date.now();
  console.log(`[KNOX-SYNC] ${orgs.length}개 조직 정보 삽입 완료 (소요시간: ${endTime - startTime}ms)`);
}

/**
 * 회사별 기존 조직 데이터 삭제
 */
async function deleteExistingOrganizations(companyCode: string): Promise<number> {
  const result = await db
    .delete(organizationTable)
    .where(eq(organizationTable.companyCode, companyCode));
  
  const deletedCount = result.rowCount || 0;
  console.log(`[KNOX-SYNC] ${companyCode}: 기존 조직 데이터 ${deletedCount}건 삭제 완료`);
  return deletedCount;
}

/**
 * 회사별 조직 동기화 - Delete-Insert 방식
 * 기존 데이터를 모두 삭제한 후 새로운 데이터를 삽입하여 삭제된 데이터 문제 해결
 */
async function syncOrganizationsByCompany(companyCode: string): Promise<number> {
  let currentApiCalls = 0;
  let totalOrganizations = 0;
  let currentDelay = API_CALL_DELAY_MS;
  
  try {
    console.log(`[KNOX-SYNC] ${companyCode}: 조직 동기화 시작 (Delete-Insert 방식)`);

    // 1단계: 기존 데이터 삭제
    await deleteExistingOrganizations(companyCode);

    // 2단계: 첫 번째 호출 - 페이지 없이 최대 2,000건까지 조회 (Knox API 가이드 기준)
    const firstResp = await searchOrganizations({ companyCode });
    
    // API 제한 체크 및 delay 조절
    const limitStatus = checkApiLimitStatus(1);
    currentDelay = limitStatus.recommendedDelay;
    currentApiCalls++;

    if (firstResp.result === 'success') {
      await insertOrganizations(firstResp.organizations);
      totalOrganizations += firstResp.organizations.length;
      
      console.log(
        `[KNOX-SYNC] ${companyCode}: 첫 번째 조회 완료 - 총 ${firstResp.totalCount}개 중 ${firstResp.organizations.length}개 처리 (${firstResp.totalPage} 페이지)`
      );

      // 2,000개를 초과하는 경우 나머지 페이지 처리
      if (firstResp.totalPage > 1) {
        console.log(`[KNOX-SYNC] ${companyCode}: ${firstResp.totalPage - 1}개 추가 페이지 처리 시작`);
        
        for (let page = 2; page <= firstResp.totalPage; page++) {
          // 동적 delay 적용
          await delay(currentDelay);

          const resp = await searchOrganizations({ companyCode, page: String(page) });
          
          // API 제한 체크 및 delay 조절
          const pageLimit = checkApiLimitStatus(1);
          currentDelay = pageLimit.recommendedDelay;
          currentApiCalls++;

          if (resp.result === 'success') {
            await insertOrganizations(resp.organizations);
            totalOrganizations += resp.organizations.length;
            
            console.log(
              `[KNOX-SYNC] ${companyCode}: ${page}/${resp.totalPage} 페이지 처리 완료 (${resp.organizations.length}개, 누적: ${totalOrganizations}개)`
            );
          } else {
            console.warn(`[KNOX-SYNC] ${companyCode}: 페이지 ${page} 조회 실패`);
            break;
          }
        }
      }

      console.log(`[KNOX-SYNC] ${companyCode}: 완료 - ${totalOrganizations}개 조직, API 호출 ${currentApiCalls}회`);
    } else {
      console.warn(`[KNOX-SYNC] ${companyCode}: 첫 번째 조회 실패`);
    }
  } catch (err) {
    console.error(
      `[KNOX-SYNC] ${companyCode}: 동기화 오류 (API 호출 ${currentApiCalls}회)`,
      err
    );
  }

  return currentApiCalls;
}

export async function syncKnoxOrganizations(): Promise<void> {
  logSyncStart('조직');
  initializeApiTracker(); // API 추적기 초기화
  
  let totalApiCalls = 0;
  const startTime = Date.now();

  // 각 회사별 순차 처리
  for (const companyCode of KNOX_COMPANIES) {
    const apiCalls = await syncOrganizationsByCompany(companyCode);
    totalApiCalls += apiCalls;
  }

  logSyncComplete('조직', totalApiCalls, startTime);
}

export async function startKnoxOrganizationSyncScheduler() {
  // 환경 변수에 따라 실행시 즉시 실행 여부 결정 (없으면 false)
  if (DO_FIRST_RUN) {
    if (!checkTimeRestriction()) {
      return;
    }
    
    syncKnoxOrganizations().catch(console.error);
  }

  // CRON JOB 등록
  cron.schedule(CRON_STRING, () => {
    syncKnoxOrganizations().catch(console.error);
  });

  logSchedulerInfo('조직', CRON_STRING);
}