index.js

const dotenv = require('dotenv').config();
const Discord = require('discord.js');
const Mangadex = require('mangadex-full-api');
const Database = require("@replit/database");
const fetch = require("node-fetch");
const db = new Database();

//http server to keep the replit running
const http = require('http');
const server = http.createServer((req, res) => {
  res.writeHead(200);
  res.end('ok');
});
server.listen(3000);

//Create the instance of the bot
const client = new Discord.Client();
//Log message on successful Discord login
client.on('ready', () => {
  console.log(`${new Date().toLocaleString()}: Logged in as ${client.user.tag}`);
  client.channels.cache.get(process.env.DISCORD_LOG).send(`${new Date().toLocaleString()}: Logged in as ${client.user.tag}`);
  //client.channels.cache.get('755833627761180742').send(`No don't do that`);
});
//Handle the manual prefix.checkChapter command 
client.on('message', msg => {
  if (msg.content === `${process.env.PREFIX}.check`) {
    client.channels.cache.get(process.env.DISCORD_LOG).send(`${new Date().toLocaleString()}: Manual chapter update requested`);
    checkChapter();
  }
  if (msg.content === (`${process.env.PREFIX}.extra`)) {
    client.channels.cache.get(process.env.DISCORD_LOG).send(`${new Date().toLocaleString()}: Manual chapter update requested`);
    var num = msg.content.replace(/[^0-9]/g, '');
    extraChapter(num);
  }
  if (msg.content === (`${process.env.PREFIX}.anime`)) {
    client.channels.cache.get(process.env.DISCORD_LOG).send(`${new Date().toLocaleString()} Manual Anime Update requested`);
    checkEpisode();
  }

  //FAQ and QOL commands for the Horimiya discord
  if(msg.content === (`${process.env.PREFIX}.art`))
  {
     msg.channel.send("Media channels were removed because\n1) People didn't care about most of the posted media\n2) The media people actually talked about created discussions which should have been in #spoilers or #no-spoilers");
  }
  if(msg.content === (`${process.env.PREFIX}.noRaws`)){
    msg.channel.send('While we do not have an official rule that states you cannot post or discuss raws, leaks, or speedscans, We would appreciate if you did not post them. This "request" applies to all series, but epsecially the following: *Attack on Titan/Shingeki no Kyojin*, *Kaguya-Sama: Love is war*, *Oshi no Ko*, and *Kanojo, Okarishimasu*. We hope you understand.');
  }
  if(msg.content === (`${process.env.PREFIX}.epRelease`)){
    msg.channel.send("Horimiya's anime is released every Saturday at 5:00PM (17:00) GMT.");
  }
  if (msg.content === (`${process.env.PREFIX}.when`)) {
    msg.channel.send("Horimiya releases on a monthly schedule and is translated by a volunteer group.We know about the next chapter release as much as you do (nothing). The final chapter is being released ***in Japan*** on March 18th. If you want to be first to be notified, join the scanlation group and help scanlate the manga: https://tsundere.services/");
  }
  if(msg.content === (`${process.env.PREFIX}.credit`)){
    msg.channel.send("Please say thank you to Yuki's wonderful, incredible developer, Epsev, and the writer of some of the FAQ commands, Alternis, for their work on Yuki's code. If you enjoy this bot or any of Epsev's other projects like Seiyuusauce, please make sure to buy him a coffee at https://www.buymeacoffee.com/doongs .");
  }
  if(msg.content === (`${process.env.PREFIX}.commonSense`)){
    msg.channel.send("Please remember to use common sense when asking questions. Please follow the following logical process if you need assistance: \n 1. Am I in the right channel \n 2. Can I google my question? \n If you answered 'Yes' to the first question, and 'No' to the second, go ahead, ask your question. Otherwise please either move to the correct channel, or google your question. Thank you.");
  }
  if(msg.content === (`${process.env.PREFIX}.s2`)){
    msg.channel.send("No, we don't know if there is a season two of Horimiya's anime. In an interview, the director implied that the ending of the Horimiya anime would be where he'd like us to think Horimiya ends. Please, if you have complaints about this, direct them to Clover Works on Twitter, not to us or our staff team.");
  }
  if(msg.content === (`${process.env.PREFIX}.rules`)){
    msg.channel.send("You have obviously not read the rules of this server. Please check the rules channel, and while you are at it, please check the other channels in the catagory marked 'Important', Thank you!");
  }
});



//uncomment this to reset the lastChapter key in the database to 0, uncomment the following line to reset the lastEpisode key in the database to 0

//db.set("lastChapter", 0).then(() => { console.log(`lastChapter set to 0`) });
//db.set("lastEpisode", 0).then(() => { console.log(`lastEpisode set to 0`) });
//Logs the bot into Mangadex and determines if a new chapter has been uploaded
function checkChapter() {
  //Mangadex Login
  Mangadex.agent.login(process.env.MANGADEX_USERNAME, process.env.MANGADEX_PASSWORD, false).then(async () => {

    var manga = new Mangadex.Manga();
    await manga.fill(process.env.MANGADEX_ID);
    let chapterId = manga.chapters[0].id;
    let chapter = await Mangadex.Chapter.get(chapterId);
    console.log(chapter);

    db.get("lastChapter").then(value => {
      if (value != chapter.chapter && (chapter.language == 'GB' || chapter.language == 'en_EN' || chapter.language == 'en_US')) {
        db.set("lastChapter", chapter.chapter).then(() => { console.log(`${new Date().toLocaleString()}: New chapter is Ch. ${chapter.chapter}`) });
        client.channels.cache.get(process.env.DISCORD_LOG).send(`${new Date().toLocaleString()}: New chapter is Ch. ${chapter.chapter}`);
        sendMessage(chapter);
        return true;
      } else {
        console.log(`${new Date().toLocaleString()}: Current chapter is still Ch. ${chapter.chapter}`);
        client.channels.cache.get(process.env.DISCORD_LOG).send(`${new Date().toLocaleString()}: Current chapter is still Ch. ${chapter.chapter}`);
        return false;
      }
    });

  });
}
function checkEpisode() {
  //Query the Anilist API for episodes of the Horimiya anime
  var query = `
query ($id: Int) {
  Media (id: $id, type: ANIME) { 
    id
    title {
      romaji
      english
      native
    }
    streamingEpisodes {
      title
      thumbnail
      url
      site
    }
  }
}
`;
  // Define our query variables and values that will be used in the query request
  var variables = {
    id: process.env.ANILIST_ID
  };

  // Define the config we'll need for our Api request
  var url = 'https://graphql.anilist.co',
    options = {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
        'Accept': 'application/json',
      },
      body: JSON.stringify({
        query: query,
        variables: variables
      })
    };

  // Make the HTTP Api request
  fetch(url, options).then(handleResponse).then(handleData).catch(handleError);


  function handleResponse(response) {
    return response.json().then(function(json) {
      return response.ok ? json : Promise.reject(json);
    });
  }

  function handleData(data) {
    console.log(data.data.Media.streamingEpisodes[(data.data.Media.streamingEpisodes.length - 1)])

    var newestEpisode = (data.data.Media.streamingEpisodes[(data.data.Media.streamingEpisodes.length - 1)])

    db.get("lastEpisode").then(value => {
      if (value != newestEpisode.title) {
        db.set("lastEpisode", newestEpisode.title).then(() => { console.log(`${new Date().toLocaleString()}: New episode is Ep. ${newestEpisode.title}`) });
        client.channels.cache.get(process.env.DISCORD_LOG).send(`${new Date().toLocaleString()} New episode is Ep. ${newestEpisode.title}`);
        sendAnimeMessage(newestEpisode);
        return true;
      } else {
        console.log(`${new Date().toLocaleString()} Current episode is still Ep. ${newestEpisode.title}`);
        client.channels.cache.get(process.env.DISCORD_LOG).send(`${new Date().toLocaleString()} Current episode is still Ep. ${newestEpisode.title}`);
        return false;
      }
    });

  }

  function handleError(error) {
    alert('Error, check console');
    console.error(error);
  }

}

//Check for a new chapter once on init and again every UPDATE_INTERVAL milleseconds

client.login(process.env.TOKEN).then(() => {
  checkChapter();
  //checkEpisode();
});

// setInterval(() => {
//   client.login(process.env.TOKEN).then(() => {
//     checkChapter();
//     //checkEpisode();
//   });
// },
//   process.env.UPDATE_INTERVAL);

//Function to handle message sending on a manga update
function sendMessage(chapter) {
  //Console log for 
  console.log(`${new Date().toLocaleString()}: Sending message for Ch. ${chapter.chapter}`);
  //Sends a message to the admin bot logging channel
  client.channels.cache.get(process.env.DISCORD_LOG).send(`${new Date().toLocaleString()}: Sending message for Ch. ${chapter.chapter}`);
  //Sends a message to the update channel with the chapter number, translation group, and Mangadex URL
  client.channels.cache.get(process.env.DISCORD_MANGA).send(`<@&${process.env.DISCORD_MANGA_ROLE}>\nHey everyone, chapter ${chapter.chapter} is out now from ${chapter.groups[0].title}!\n${chapter.url}`);
}

function sendAnimeMessage(newestEpisode) {
  //This is effectively a copy of sendMessage, just written in terms of the checkEpisode function
  console.log(`${new Date().toLocaleString()}: Sending message for Ep. ${newestEpisode.title}`);
  client.channels.cache.get(process.env.DISCORD_LOG).send(`${new Date().toLocaleString()} Sending message for episode ${newestEpisode.title}`);
  client.channels.cache.get(process.env.DISCORD_ANIME).send(`<@&${process.env.DISCORD_ANIME_ROLE}>\n${newestEpisode.title} is out now!\nGo watch it here:\n${newestEpisode.url}`);
  client.channels.cache.get(process.env.DISCORD_ANIME).send(`${newestEpisode.thumbnail}`);
}

//If an extra chapter is released and it's not the latest chapter number wise, manually update for it
function extraChapter(chapterId) {
  client.login()
  Mangadex.agent.login(process.env.MANGADEX_USERNAME, process.env.MANGADEX_PASSWORD, false).then(async () => {
    let chapter = await Mangadex.Chapter.get(chapterId);
    //Console log for 
    console.log(`${new Date().toLocaleString()}: Sending message for Ch. ${chapter.chapter}`);
    //Sends a message to the admin bot logging channel
    client.channels.cache.get(process.env.DISCORD_LOG).send(`${new Date().toLocaleString()}: Sending message for Ch. ${chapter.chapter}`);
    client.channels.cache.get(process.env.DISCORD_MANGA).send(`<@&${process.env.DISCORD_MANGA_ROLE}>\nHey everyone, extra chapter ${chapter.chapter} is out now from ${chapter.groups[0].title}!\n${chapter.url}`);
  });
}