import { getAuthConfig, getAutoDownloadUsers, updateAutoDownloadLastRun, getAutoScrapeJobs, updateAutoScrapeLastRun } from './db.js';
import { runDownload } from './download.js';
import { runForumScrape, runCoomerScrape, runMediaLinkScrape, runMegaScrape, createJob } from './scrape.js';

const INTERVAL = 12 * 60 * 60 * 1000; // 12 hours
const STARTUP_DELAY = 30 * 1000; // 30 seconds

async function runAutoDownloads() {
  const users = getAutoDownloadUsers();
  if (users.length === 0) return;

  const authConfig = getAuthConfig();
  if (!authConfig) {
    console.log('[scheduler] Skipping auto-downloads: no auth config');
    return;
  }

  console.log(`[scheduler] Starting auto-downloads for ${users.length} user(s)`);

  for (const user of users) {
    try {
      console.log(`[scheduler] Downloading ${user.username} (${user.user_id})`);
      await runDownload(user.user_id, authConfig, null, true, user.username);
      updateAutoDownloadLastRun(user.user_id);
      console.log(`[scheduler] Completed download for ${user.username}`);
    } catch (err) {
      console.error(`[scheduler] Error downloading ${user.username}:`, err.message);
    }
  }

  console.log('[scheduler] Auto-downloads complete');
}

async function runAutoScrapes() {
  const jobs = getAutoScrapeJobs();
  if (jobs.length === 0) return;

  console.log(`[scheduler] Starting auto-scrapes for ${jobs.length} job(s)`);

  for (const savedJob of jobs) {
    try {
      const config = JSON.parse(savedJob.config);
      config.folderName = savedJob.folder_name;
      const job = createJob(savedJob.type, config);

      console.log(`[scheduler] Running ${savedJob.type} scrape for ${savedJob.folder_name}`);

      if (savedJob.type === 'forum') {
        await runForumScrape(job);
      } else if (savedJob.type === 'coomer') {
        await runCoomerScrape(job);
      } else if (savedJob.type === 'medialink') {
        await runMediaLinkScrape(job);
      } else if (savedJob.type === 'mega') {
        await runMegaScrape(job);
      }

      updateAutoScrapeLastRun(savedJob.id);
      console.log(`[scheduler] Completed scrape for ${savedJob.folder_name}`);
    } catch (err) {
      console.error(`[scheduler] Error scraping ${savedJob.folder_name}:`, err.message);
    }
  }

  console.log('[scheduler] Auto-scrapes complete');
}

async function runAll() {
  try {
    await runAutoDownloads();
  } catch (err) {
    console.error('[scheduler] Auto-download batch failed:', err.message);
  }
  try {
    await runAutoScrapes();
  } catch (err) {
    console.error('[scheduler] Auto-scrape batch failed:', err.message);
  }
}

export function startScheduler() {
  // Run once shortly after startup
  setTimeout(() => {
    console.log('[scheduler] Running initial auto-download/scrape check');
    runAll();
  }, STARTUP_DELAY);

  // Then every 12 hours
  setInterval(() => {
    console.log('[scheduler] Running scheduled auto-download/scrape');
    runAll();
  }, INTERVAL);

  console.log('[scheduler] Scheduler started (interval: 12h)');
}