package com.interplug.qcast.batch;

import java.util.*;
import java.util.concurrent.ConcurrentHashMap;

import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.batch.core.*;
import org.springframework.batch.core.explore.JobExplorer;
import org.springframework.batch.core.launch.JobLauncher;
import org.springframework.batch.core.repository.JobExecutionAlreadyRunningException;
import org.springframework.batch.core.repository.JobInstanceAlreadyCompleteException;
import org.springframework.batch.core.repository.JobRestartException;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequiredArgsConstructor
@Slf4j
public class JobLauncherController {
  private final Map<String, Job> jobs; // 여러 Job을 주입받도록 변경

  private final JobLauncher jobLauncher;
  private final JobExplorer jobExplorer;

  @Value("${qsp.master-admin-user-batch-url}")
  private String qspInterfaceUrl;

  @Value("${spring.profiles.scheduler}")
  private String scheduler;

  /**
   * 특정 Job을 매핑으로 실행하는 메소드
   *
   * @param jobName
   * @return
   * @throws JobInstanceAlreadyCompleteException
   * @throws JobExecutionAlreadyRunningException
   * @throws JobParametersInvalidException
   * @throws JobRestartException
   */
  @GetMapping("/batch/job/{jobName}") // Path Variable로 jobName을 받음
  public Map<String, Object> launchJob(@PathVariable String jobName)
      throws JobInstanceAlreadyCompleteException, JobExecutionAlreadyRunningException,
      JobParametersInvalidException, JobRestartException {


    Job job = jobs.get(jobName);
    Map<String, Object> resultMap = new HashMap<String, Object>();
    if (job == null) {
      // return "Job " + jobName + " not found";
      resultMap.put("code", "FAILED");
      resultMap.put("message", "Job" + jobName + " not found");
      return resultMap;
    }

    // 실행 중인 Job 확인 (데이터베이스 기반)
    if (isJobRunning(jobName)) {
      log.warn("Job {} is already running, skipping execution", jobName);
      resultMap.put("code", "FAILED");
      resultMap.put("message", "Job "+ jobName +" is already running, skipping execution");
      return resultMap;
    }

    try {
      log.info("Starting job: {}", jobName);

      JobParameters jobParameters = new JobParametersBuilder().addString("jobName", jobName)
          .addDate("time", new Date()).toJobParameters();

      JobExecution jobExecution = jobLauncher.run(job, jobParameters);

      BatchStatus status = jobExecution.getStatus();
      ExitStatus exitStatus = jobExecution.getExitStatus();

      resultMap.put("code", status.toString());
      resultMap.put("message", exitStatus.getExitDescription());

      // return "Job " + jobName + " started";
      return resultMap;
    } catch (Exception e) {
      resultMap.put("code", "FAILED");
      resultMap.put("message", e.getMessage());
      return resultMap;
    }
  }

  /**
   * Q.CAST 판매점 / 사용자 / 즐겨찾기 / 노출 아이템 동기화 배치
   *

   */
  // @Scheduled(cron = "*/5 * * * * *")
  @Scheduled(cron = "0 50 23 * * *")
  public String storeAdditionalJob() throws JobInstanceAlreadyCompleteException, JobExecutionAlreadyRunningException, JobParametersInvalidException, JobRestartException {

    return executeScheduledJob("storeAdditionalJob");

  }

  /**
   * 아이템 동기화 배치
   *

   */
  @Scheduled(cron = "0 30 02 * * *")
  public String materialJob() throws JobInstanceAlreadyCompleteException, JobExecutionAlreadyRunningException, JobParametersInvalidException, JobRestartException {

    return executeScheduledJob("materialJob");

  }

  /**
   * BOM 아이템 동기화 배치
   *

   */
  @Scheduled(cron = "0 40 02 * * *")
  public String bomJob() throws JobInstanceAlreadyCompleteException, JobExecutionAlreadyRunningException, JobParametersInvalidException, JobRestartException {

    return executeScheduledJob("bomJob");

  }

  /**
   * 영업사원 동기화 배치
   *

   */
  @Scheduled(cron = "0 40 03 * * *")
  public String businessChargerJob() throws JobInstanceAlreadyCompleteException, JobExecutionAlreadyRunningException, JobParametersInvalidException, JobRestartException {

    return executeScheduledJob("businessChargerJob");

  }

  /**
   * 관리자 유저 동기화 배치
   *

   */
  @Scheduled(cron = "0 30 01 * * *")
  public String adminUserJob() throws JobInstanceAlreadyCompleteException, JobExecutionAlreadyRunningException, JobParametersInvalidException, JobRestartException {

    return executeScheduledJob("adminUserJob");

  }

  /**
   * 가격 동기화 배치
   *

   */
  @Scheduled(cron = "0 20 00 * * *")
  public String priceJob() throws JobInstanceAlreadyCompleteException, JobExecutionAlreadyRunningException, JobParametersInvalidException, JobRestartException {

    return executeScheduledJob("priceJob");

  }

  /**
   * 공통코드 M_COMM_H, M_COMM_L 동기화 배치
   *

   */
  @Scheduled(cron = "0 10 03 * * *")
  public String commonCodeJob() throws JobInstanceAlreadyCompleteException, JobExecutionAlreadyRunningException, JobParametersInvalidException, JobRestartException {

    return executeScheduledJob("commonCodeJob");

  }

  /**
   * Q.CAST 견적특이사항 / 아이템 표시, 미표시 동기화 배치
   *

   */
  @Scheduled(cron = "0 30 23 * * *")
  public String specialNoteDispItemAdditionalInfoJob() throws JobInstanceAlreadyCompleteException, JobExecutionAlreadyRunningException, JobParametersInvalidException, JobRestartException {
    return executeScheduledJob("specialNoteDispItemAdditionalJob");

  }

  /**
   * Plan Confrim 동기화 배치
   *

   */
  @Scheduled(cron = "0 05 04 * * *")
  public String planConfirmJob() throws JobInstanceAlreadyCompleteException, JobExecutionAlreadyRunningException, JobParametersInvalidException, JobRestartException {

    return executeScheduledJob("planConfirmJob");

  }

  /**
   * 견적서 전송 동기화 배치
   *

   */
  @Scheduled(cron = "0 20 04 * * *")
  public String estimateSyncJob() throws JobInstanceAlreadyCompleteException, JobExecutionAlreadyRunningException, JobParametersInvalidException, JobRestartException {

    return executeScheduledJob("estimateSyncJob");

  }

  /**
   * 공통 스케줄러 실행 메소드
   */
  private String executeScheduledJob(String jobName) throws JobInstanceAlreadyCompleteException, JobExecutionAlreadyRunningException, JobParametersInvalidException, JobRestartException {
    Job job = jobs.get(jobName);
    if (job == null) {
      log.error("Job {} not found", jobName);
      return "Job " + jobName + " not found";
    }

    if (!"Y".equals(scheduler) && !"materialJob".equals(jobName) && !"commonCodeJob".equals(jobName) && !"specialNoteDispItemAdditionalJob".equals(jobName)) {
      log.info("Scheduler disabled, skipping job {}", jobName);
      return "Scheduler disabled";
    }

    // 실행 중인 Job 확인 (데이터베이스 기반)
    if (isJobRunning(jobName)) {
      log.warn("Job {} is already running, skipping execution", jobName);
      return "Job already running";
    }

    JobParameters jobParameters =
            new JobParametersBuilder().addDate("time", new Date()).toJobParameters();

    jobLauncher.run(job, jobParameters);

    return jobName+ " executed successfully";
  }

  /**
   * Job 실행 상태 확인
   */
  private boolean isJobRunning(String jobName) {
    try {
      List<JobInstance> jobInstances = jobExplorer.findJobInstancesByJobName(jobName, 0, 1);
      if (jobInstances.isEmpty()) {
        return false;
      }

      JobInstance latestJobInstance = jobInstances.get(0);
      List<JobExecution> jobExecutions = jobExplorer.getJobExecutions(latestJobInstance);

      return jobExecutions.stream()
              .anyMatch(execution -> execution.getStatus() == BatchStatus.STARTED
                      || execution.getStatus() == BatchStatus.STARTING);
    } catch (Exception e) {
      log.error("Error checking job running status: {}", e.getMessage());
      return false;
    }
  }
}