import fs from 'fs';
import path from 'path';
import scheduler from './scheduler';
import { TaskOptions } from 'node-cron';

interface OneJob {
  id: string
  cronTime: string
  task: Function
  options: TaskOptions,
  autoStart: boolean,
  [key: string]: Function | string | boolean | TaskOptions | undefined
}

export function defineJob(job: OneJob) {
  return job;
}

const jobsDir = path.join(__dirname, 'jobs');
const jobModules: Record<string, OneJob> = {};

fs.readdirSync(jobsDir).forEach(file => {
  if (!file.endsWith('Job.ts')) return;
  const jobModule = require(path.join(jobsDir, file));
  const job = jobModule.default || jobModule;
  if (job && job.id && job.cronTime && typeof job.task === 'function') {
    jobModules[job.id] = job;
    scheduler.add(job.id, job.cronTime, job.task, job.options);
    if (job.autoStart) scheduler.start(job.id);
  }
});

function callHook(id: string, hookName: string) {
  const job = jobModules[id];
  if (job && typeof job[hookName] === 'function') {
    try {
      job[hookName]();
    } catch (e) {
      console.error(`[Job:${id}] ${hookName} 执行异常:`, e);
    }
  }
}

export default {
  start: (id: string) => {
    callHook(id, 'beforeStart');
    scheduler.start(id);
  },
  stop: (id: string) => {
    scheduler.stop(id);
    callHook(id, 'afterStop');
  },
  updateCronTime: (id: string, cronTime: string) => scheduler.updateCronTime(id, cronTime),
  list: () => scheduler.list(),
  reload: (id: string) => {
    const job = jobModules[id];
    if (job) {
      scheduler.remove(id);
      scheduler.add(job.id, job.cronTime, job.task, job.options);
    }
  }
};