import cron from 'node-cron';
import { cron_task_list } from '../config/cron_tasks.js';
import { execute_action_and_record } from './task_executor.js';
import { get_flow_runner } from './flows/flow_registry.js';

const cron_jobs = [];
const running_task_name_set = new Set();

async function run_cron_task(task) {
  if (!task || !task.type) {
    throw new Error('cron_task 缺少 type');
  }

  if (task.type === 'action') {
    await execute_action_and_record({
      action_name: task.action_name,
      action_payload: task.action_payload || {},
      source: 'cron'
    });
    return;
  }

  if (task.type === 'flow') {
    const run_flow = get_flow_runner(task.flow_name);
    await run_flow(task.flow_payload || {});
    return;
  }

  throw new Error(`cron_task type 不支持: ${task.type}`);
}

export async function start_all_cron_tasks() {
  for (const task of cron_task_list) {
     const task_name = task && task.name ? String(task.name) : 'cron_task';
     const job = cron.schedule(task.cron_expression, async () => {
        if (running_task_name_set.has(task_name)) {
          // eslint-disable-next-line no-console
          console.log('[cron] skip (already running)', { name: task_name });
          return;
        }

        running_task_name_set.add(task_name);
        try {
          await run_cron_task(task);
        } finally {
          running_task_name_set.delete(task_name);
        }
     });

     cron_jobs.push(job);
  }
}

export function stop_all_cron_tasks() {
  for (const job of cron_jobs) {
    job.stop();
  }
  cron_jobs.length = 0;
  running_task_name_set.clear();
}