/* eslint-disable require-jsdoc */
/* eslint-disable max-len */
const path = require('path');
const {MessageEmbed} = require('discord.js');
function inject(bot, dcclient, config) {
  const loadFiles = require('../util/load_files');
  const channeldc = dcclient.channels.cache.get(config.discord.servers[bot.options.host]);
  bot.command_handler = {};
  bot.command_handler.commands = {};
  bot.command_handler.reload = function() {
    bot.command_handler.commands = loadFiles(path.join(__dirname, config.commandsDir));
  };
  bot.command_handler.reload();
  bot.command_handler.main = function(prefix, username, usernameraw, message, sender, channeldc, hash, ownerhash, selector) {
    bot.command_handler.reload();
    let raw;
    let command;
    const discord = message.content ? true : false;

    discord ? raw = message.content.substring(prefix.length) :
              raw = message.substring(prefix.length);

    const [commandName, ...args] = raw.split(' ');
    command = bot.command_handler.commands.find((command) => command.name === commandName.toLowerCase());

    try {
      const alias = bot.command_handler.commands.find((command) => command.alias.includes(commandName.toLowerCase()));
      if (alias) command = bot.command_handler.commands.find((command) => command.alias.includes(commandName.toLowerCase()));
      if (prefix === '*' && message.endsWith('*') && message !== '*') return;
      if (!command) throw new Error(`Unknown command: "${commandName}"`);

      if (command.name !== 'validate' && command.trusted === 1) {
        if (discord && !message.member?.roles?.cache?.some((role) => role.name === 'Trusted')) throw new Error('You\'re not in the trusted role!');
        else if (!discord && args[0] !== hash) throw new Error(`Invalid hash`);
      } else if (command.name !== 'validate' && command.trusted === 2) {
        if (discord && !message.member?.roles?.cache?.some((role) => role.name === 'Trusted')) throw new Error('You\'re not in the trusted role!');
        else if (!discord && args[0] !== hash) throw new Error(`Invalid OwnerHash`);
      }

      if (prefix === config.discord.prefix) {
        if (!command.discordExecute) throw new Error('This command is not yet supported on discord!');
        command.discordExecute(bot, username, usernameraw, sender, prefix, args, channeldc, message, config);
      } else {
        command.execute(bot, username, usernameraw, sender, prefix, args, config, hash, ownerhash, selector);
      }
    } catch (e) {
      if (prefix === config.discord.prefix) {
        const Embed = new MessageEmbed()
            .setColor('#FF0000')
            .setTitle('Error')
            .setDescription(`\`\`\`${e}\`\`\``);
        channeldc.send({embeds: [Embed]});
      } else {
        bot.tellraw(selector, {text: String(e), color: 'red'});
      }
    }
  };
  bot.command_handler.run = function(username, usernameraw, message, sender, channeldc, hash, ownerhash, selector = '@a') {
    for (const prefix of config.prefixes) {
      if (!message.startsWith(prefix)) continue;
      bot.command_handler.main(prefix, username, usernameraw, message, sender, channeldc, hash, ownerhash, selector);
    }
  };
  bot.on('message', async (_username, _message, _sender) => {
    // try catch cuz TypeError: Cannot read properties of undefined (reading 'replace')
    try {
      const usernameraw = _username.replace(/§.?/g, '');
      const sender = _sender !== '00000000-0000-0000-0000-000000000000' ? _sender : bot.playersAddedPlayers[usernameraw];
      let username;
      if (!bot.getplayerusername[sender]) username = usernameraw;
      else username = bot.getplayerusername[sender];
      const message = _message.replace(/* /§r/g */ /§.?/g, '')/* .replace(/§/g, '')*/;
      bot.command_handler.run(username, usernameraw, message, sender, channeldc, bot.hash, bot.ownerHash);
    } catch (e) {
      bot.console.error(e);
    }
  });
  bot.on('cspy', async function(_username, _message) {
    const username = _username.replace(/§.?/g, '');
    const message = _message.replace(/§.?/g, '');
    const sender = bot.playersAddedPlayers[username];
    bot.command_handler.run(username, username, message, sender, channeldc, bot.hash, bot.ownerHash, username);
  });
  function handleDiscordMessages(message) {
    try {
      // ignores the message that comes from the bot itself
      if (message.author.id === dcclient.user.id) return;
      // only receive messages in SPECIFIC channel
      if (message.channel.id !== channeldc.id) return;
      if (!message.content.startsWith(config.discord.prefix)) return;
      bot.command_handler.main(config.discord.prefix, message.member.displayName, message.member.displayName, message, 'no sender for discord', channeldc);
    } catch (e) {
      return;
    };
  }
  bot.once('end', () => {
    dcclient.off('messageCreate', handleDiscordMessages);
  });
  dcclient.on('messageCreate', handleDiscordMessages);
};
module.exports = {inject};