var express = require('express');
var router = express.Router();
const utils = require('../../libs/utils');
const config = require('../../config/app');
const translate = require('../../config/translate');


// deeplink share 专属页路由
router.get('/:id', function (req, res, next) {
  (async function () {
    let id = req.params.id;
    utils.validators.validateId(id);

    let lang = utils.lang.ensureLanguage(req.query.lang);

    let host = config.cdnHost ?? config.resHost;

    let imageUrl = `${host}/thumbs/coloring-page/work/480/${id}.webp`;
    let applink = `https://art.pcoloring.com${req.originalUrl}`;
    let downlink = `https://pcoloring.com/anc/`;


    const userAgent = req.headers['user-agent'];
    console.log('User-Agent:', userAgent);
    if (userAgent) {
      const ua = userAgent.toLowerCase();
      if (ua.includes('iphone') || ua.includes('ipad') || ua.includes('ipod')) {
        downlink = 'itms-apps://itunes.apple.com/app/id1575480118';
      } else if (ua.includes('android')) {
        downlink = 'https://play.google.com/store/apps/details?id=com.pcoloring.art.puzzle.color.by.number';
      }
    }

    let data = {
      id,
      imageUrl,
      applink,
      downlink,
      lang,
      translate,
    }

    // 渲染EJS模板到内存中
    res.render('v2/share', data, async (err, html) => {
      if (err) {
        // 如果渲染出错，调用next()传递错误
        return next(err);
      }
      res.send(html);
    });


  })().catch(next);

});


module.exports = router;