var express = require('express');
var router = express.Router();
const config = require('../../config/app');
const models = require('../../models');
const common = require('./common');
const utils = require('../../libs/utils');
const { getListBuilder } = require('../../libs/pager');
const redis = require('../../libs/redis');
const { coloringData } = require('./config');

const CACHE_PREFIX = "art_v2";
// const CACHE_EXPIRES = 60; // 60s刷新一次
const CACHE_EXPIRES = 600;

const artSelect = 'name title desc seoTitle seoDescription width height date publishTime tags lastMod mystery hasSpecial useSpecialThumb publishVersion totalStartCount totalDoneCount completionRate';


// 首页路由
router.get('/', function (req, res, next) {  // 限制严格一点
  (async function () {
    let cacheKey = `${CACHE_PREFIX}_/`;
    let htmlData = await redis.getAsync(cacheKey);
    htmlData = null;
    if (!htmlData) {
      // 最新上线
      let latest = await models.Art
        .find({ status: 9000 })
        .select(artSelect)
        .populate('user', 'username name')
        .sort({ publishTime: 'desc' })
        .limit(12)
        .lean()
        .exec();
      common.organizeData(latest);

      let data = {
        latest,
        uri: req.originalUrl,
      };

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

        // 渲染成功，存redis, 发送数据到客户端
        htmlData = html;
        try {
          await redis.set(cacheKey, htmlData, 'EX', CACHE_EXPIRES);
        } catch (e) {
          console.error(e);
        }

        res.send(htmlData);
      });

    } else {
      // 缓存命中， 直接发送缓存数据
      res.set({ 'X-From-Cache': 'true' });
      res.send(htmlData);
    }

  })().catch(next);
});

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

    let host = config.cdnHost ?? config.resHost;
    let workUrl = `${host}/thumbs/coloring-page/work/480/${id}.webp`;

    // let cacheKey = `${CACHE_PREFIX}_play_${id}`;
    // let htmlData = await redis.getAsync(cacheKey);
    let htmlData = null;
    if (!htmlData) {

      let doc = await models.Art.findById(id);
      if (!doc) throw createError(404, 'Art Not Found!');

      // deeplink 相关
      let applink = `https://art.pcoloring.com${req.originalUrl}`;

      let sharePageUrl = `https://art.pcoloring.com/share/${id}`;

      let data = {
        id,
        uri: req.originalUrl,
        imageUrl: workUrl,
        applink,
        sharePageUrl,
      };

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

        // 渲染成功，存redis, 发送数据到客户端
        htmlData = html;
        // try {
        //   await redis.set(cacheKey, htmlData, 'EX', CACHE_EXPIRES);
        // } catch (e) {
        //   console.error(e);
        // }

        res.send(htmlData);
      });
    } else {
      // 缓存命中， 直接发送缓存数据
      res.set({ 'X-From-Cache': 'true' });
      res.send(htmlData);
    }


  })().catch(next);

});


// myworks
router.get('/myworks', function (req, res, next) {
  (async function () {
    let data = {
      host: config.cdnHost ?? config.resHost,
      uri: `/myworks`,
    };

    // 渲染EJS模板到内存中
    res.render('v2/myworks', 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);

});


// about
router.get('/about', function (req, res, next) {
  (async function () {
    let cacheKey = `${CACHE_PREFIX}_/about`;
    let htmlData = await redis.getAsync(cacheKey);
    // htmlData = null;
    if (!htmlData) {
      let data = {
        uri: req.originalUrl,
      };

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

        // 渲染成功，存redis, 发送数据到客户端
        htmlData = html;
        try {
          await redis.set(cacheKey, htmlData, 'EX', CACHE_EXPIRES);
        } catch (e) {
          console.error(e);
        }

        res.send(htmlData);
      });

    } else {
      // 缓存命中， 直接发送缓存数据
      res.set({ 'X-From-Cache': 'true' });
      res.send(htmlData);
    }

  })().catch(next);
});


// app
router.get('/app', function (req, res, next) {
  (async function () {
    let cacheKey = `${CACHE_PREFIX}_/app`;
    let htmlData = await redis.getAsync(cacheKey);
    // htmlData = null;
    if (!htmlData) {
      let data = {
        uri: req.originalUrl,
      };

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

        // 渲染成功，存redis, 发送数据到客户端
        htmlData = html;
        try {
          await redis.set(cacheKey, htmlData, 'EX', CACHE_EXPIRES);
        } catch (e) {
          console.error(e);
        }

        res.send(htmlData);
      });

    } else {
      // 缓存命中， 直接发送缓存数据
      res.set({ 'X-From-Cache': 'true' });
      res.send(htmlData);
    }

  })().catch(next);
});

// contact
router.get('/contact', function (req, res, next) {
  (async function () {
    let cacheKey = `${CACHE_PREFIX}_/contact`;
    let htmlData = await redis.getAsync(cacheKey);
    // htmlData = null;
    if (!htmlData) {
      let data = {
        uri: req.originalUrl,
      };

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

        // 渲染成功，存redis, 发送数据到客户端
        htmlData = html;
        try {
          await redis.set(cacheKey, htmlData, 'EX', CACHE_EXPIRES);
        } catch (e) {
          console.error(e);
        }

        res.send(htmlData);
      });

    } else {
      // 缓存命中， 直接发送缓存数据
      res.set({ 'X-From-Cache': 'true' });
      res.send(htmlData);
    }

  })().catch(next);
});


// faq
router.get('/faq', function (req, res, next) {
  (async function () {
    let cacheKey = `${CACHE_PREFIX}_/faq`;
    let htmlData = await redis.getAsync(cacheKey);
    // htmlData = null;
    if (!htmlData) {
      let data = {
        uri: req.originalUrl,
      };

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

        // 渲染成功，存redis, 发送数据到客户端
        htmlData = html;
        try {
          await redis.set(cacheKey, htmlData, 'EX', CACHE_EXPIRES);
        } catch (e) {
          console.error(e);
        }

        res.send(htmlData);
      });

    } else {
      // 缓存命中， 直接发送缓存数据
      res.set({ 'X-From-Cache': 'true' });
      res.send(htmlData);
    }

  })().catch(next);
});


// privacy-policy
router.get('/privacy-policy', function (req, res, next) {
  (async function () {
    let cacheKey = `${CACHE_PREFIX}_/privacy`;
    let htmlData = await redis.getAsync(cacheKey);
    // htmlData = null;
    if (!htmlData) {
      let data = {
        uri: req.originalUrl,
      };

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

        // 渲染成功，存redis, 发送数据到客户端
        htmlData = html;
        try {
          await redis.set(cacheKey, htmlData, 'EX', CACHE_EXPIRES);
        } catch (e) {
          console.error(e);
        }

        res.send(htmlData);
      });

    } else {
      // 缓存命中， 直接发送缓存数据
      res.set({ 'X-From-Cache': 'true' });
      res.send(htmlData);
    }

  })().catch(next);
});

// terms-of-service
router.get('/terms-of-service', function (req, res, next) {
  (async function () {
    let cacheKey = `${CACHE_PREFIX}_/terms-of-service`;
    let htmlData = await redis.getAsync(cacheKey);
    // htmlData = null;
    if (!htmlData) {
      let data = {
        uri: req.originalUrl,
      };

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

        // 渲染成功，存redis, 发送数据到客户端
        htmlData = html;
        try {
          await redis.set(cacheKey, htmlData, 'EX', CACHE_EXPIRES);
        } catch (e) {
          console.error(e);
        }

        res.send(htmlData);
      });

    } else {
      // 缓存命中， 直接发送缓存数据
      res.set({ 'X-From-Cache': 'true' });
      res.send(htmlData);
    }

  })().catch(next);
});


module.exports = router;