require('dotenv').config();
const Mustache = require('mustache');
const fetch = require('node-fetch');
const RssParser = require('rss-parser');
const fs = require('fs');
const puppeteerService = require('./services/puppeteer.service');

const MUSTACHE_MAIN_DIR = './main.mustache';

let DATA = {
  refresh_date: new Date().toLocaleDateString('en-US', {
    weekday: 'long',
    month: 'long',
    day: 'numeric',
    hour: 'numeric',
    minute: 'numeric',
    timeZoneName: 'short',
    timeZone: 'America/Detroit',
  }),
  posts: []
};

async function setWeatherInformation() {
  await fetch(
    `https://api.openweathermap.org/data/2.5/weather?q=grand%20blanc%2C%20michigan&appid=${process.env.OPEN_WEATHER_MAP_KEY}&units=imperial`
  )
    .then(r => r.json())
    .then(r => {
      DATA.city_temperature = Math.round(r.main.temp);
      DATA.city_weather = r.weather[0].description;
      DATA.city_weather_icon = r.weather[0].icon;
      DATA.sun_rise = new Date(r.sys.sunrise * 1000).toLocaleString('en-US', {
        timeZone: 'America/Detroit',
      });
      DATA.sun_set = new Date(r.sys.sunset * 1000).toLocaleString('en-US', {
        timeZone: 'America/Detroit',
      });
    });
}

async function setRssFeed() {
  const parser = new RssParser()
  await parser.parseURL("https://srp.life/feed")
    .then(r => r.items.map(val => { if (!val.title.includes("Daily Orthodox") && val !== undefined) { return val; }}))
    .then(r => {
      for (let i = 0; i < 3; i++) {
        if (r[i]) {
          DATA.posts.push({ "title": r[i].title, "desc": r[i].summary, "link": r[i].link});
        }
      }
    })
}

async function setInstagramPosts() {
  const instagramImages = await puppeteerService.getLatestInstagramPostsFromAccount('orthodoxyforyou', 3);
  DATA.img1 = instagramImages[0];
  DATA.img2 = instagramImages[1];
  DATA.img3 = instagramImages[2];
}

async function generateReadMe() {
  await fs.readFile(MUSTACHE_MAIN_DIR, (err, data) => {
    if (err) throw err;
    const output = Mustache.render(data.toString(), DATA);
    fs.writeFileSync('README.md', output);
  });
}

async function action() {
  /**
   * Fetch Weather
   */
  await setWeatherInformation();

  /**
   * Get pictures
   */
  await setInstagramPosts();

  await setRssFeed();

  /**
   * Generate README
   */
  await generateReadMe();

  /**
   * Fermeture de la boutique 👋
   */
  await puppeteerService.close();
}

action();