/**
 * 单任务调试入口
 *
 * 示例：
 * node debugTask.js dailyTrending --keep-open
 * node debugTask.js updateProject --keep-open --dry-run
 * TASK=dailyTrending DEBUG_TASK=true DEBUG_KEEP_OPEN=true node debugTask.js
 * TASK=updateProject DEBUG_TASK=true DEBUG_KEEP_OPEN=true DEBUG_DRY_RUN=true node debugTask.js
 */

if (!process.env.DEBUG) {
  process.env.DEBUG = 'true';
}
if (!process.env.DEBUG_TASK) {
  process.env.DEBUG_TASK = 'true';
}

const config = require('./config');
const logger = require('./utils/logger');
const { launchBrowser, createContext } = require('./utils/browser');
const { ensureLogin } = require('./utils/login');
const { safeGoto } = require('./utils/page');

const updateProject = require('./tasks/updateProject');
const dailyShare = require('./tasks/dailyShare');
const dailyCheckIn = require('./tasks/dailyCheckIn');
const dailyTrending = require('./tasks/dailyTrending');
const dailyStar = require('./tasks/dailyStar');

const taskMap = {
  updateProject: {
    name: '更新项目',
    handler: updateProject,
  },
  dailyTrending: {
    name: '查看热门',
    handler: dailyTrending,
  },
  trending: {
    name: '查看热门',
    handler: dailyTrending,
  },
  dailyShare: {
    name: '每日分享',
    handler: dailyShare,
  },
  dailyCheckIn: {
    name: '每日签到',
    handler: dailyCheckIn,
  },
  dailyStar: {
    name: '每日Star',
    handler: dailyStar,
  },
};

function getArgs() {
  const args = process.argv.slice(2);
  const taskArg = args.find((arg) => !arg.startsWith('--'));
  const flags = new Set(args.filter((arg) => arg.startsWith('--')));

  return {
    taskKey: process.env.TASK || taskArg,
    help: flags.has('--help') || flags.has('-h'),
    keepOpen: process.env.DEBUG_KEEP_OPEN === 'true' || flags.has('--keep-open'),
    pauseEachStep: process.env.DEBUG_PAUSE_EACH_STEP === 'true' || flags.has('--pause-each-step'),
    dryRun: process.env.DEBUG_DRY_RUN === 'true' || flags.has('--dry-run'),
  };
}

function printUsage() {
  logger.info('用法: node debugTask.js <taskName> [--keep-open] [--pause-each-step] [--dry-run]');
  logger.info('兼容用法: TASK=<taskName> node debugTask.js');
  logger.info('可用任务:');
  Object.keys(taskMap).forEach((key) => logger.info(`  ${key}`));
}

async function main() {
  const args = getArgs();
  if (args.help) {
    printUsage();
    return;
  }

  const taskKey = args.taskKey;
  const task = taskMap[taskKey];

  if (!task) {
    printUsage();
    throw new Error(`未知或未指定 TASK: ${taskKey || '(empty)'}`);
  }

  let browser = null;
  let context = null;
  let page = null;

  try {
    logger.divider();
    logger.info(`===== 单任务调试: ${task.name} (${taskKey}) =====`);

    browser = await launchBrowser();
    const created = await createContext(browser);
    context = created.context;
    page = await context.newPage();

    logger.divider();
    logger.info('===== 登录验证 =====');
    await ensureLogin(page, context);

    logger.divider();
    logger.info('===== 打开积分中心 =====');
    await safeGoto(page, config.urls.points, {
      label: '积分中心',
      timeout: config.navigationTimeout,
      waitFor: [
        '.g-user-avatar',
        'text=密码登录',
        '.novice-task-item-box',
      ],
    });

    logger.divider();
    logger.info(`===== 执行单任务: ${task.name} =====`);
    await task.handler(page, {
      debugTask: true,
      keepOpen: args.keepOpen,
      pauseEachStep: args.pauseEachStep,
      dryRun: args.dryRun,
    });

    logger.divider();
    logger.info(`✅ 单任务调试完成: ${task.name}`);
  } catch (err) {
    logger.divider();
    logger.error(`❌ 单任务调试失败: ${err.message}`);
    logger.error(err.stack || err.message);
    process.exitCode = 1;
  } finally {
    logger.divider();
    logger.info('===== 关闭浏览器 =====');
    if (browser) {
      await browser.close().catch((err) => {
        logger.warn(`关闭浏览器失败: ${err.message}`);
      });
    }
  }
}

main();