index.js

const TeleBot = require('telebot')
const Secrets = require('./secrets.json')
const Infos = require('./package.json')
const ascii = require('ascii-table')
const fetch = require('node-fetch')
const os = require('os')
const bot = new TeleBot(Secrets.BOT_TOKEN)
const utils = require('./utils')
const table = new ascii().setHeading('Users', 'Wallets')
var users = utils.initializeUsers()
var options = utils.initializeOptions()

bot.on('text', async (msg) => {
  users = await utils.createChatList(msg, users)
  users = await utils.createUserList(msg, users)
  options = await utils.createOptionsList(msg, options)
  users = await utils.checkUsername(msg, users)
})

var commands = {
  'list': [
    {
      'name': 'start',
      'desc': 'Welcome command.'
    },
    {
      'name': 'help',
      'desc': 'Shows a list of available commands.'
    },
    {
      'name': 'setoption',
      'desc': 'Sets the options of a box, a bottle of mate or used currency.'
    },
    {
      'name': 'drink',
      'desc': 'The user drinks a club-mate.'
    },
    {
      'name': 'buybox',
      'desc': 'The user buys a box of club mate.'
    },
    {
      'name': 'balance',
      'desc': 'Shows the status of everyone\'s wallet.'
    },
    {
      'name': 'send',
      'desc': 'Send money to another person!'
    },
    {
      'name': 'charge',
      'desc': 'Charge amount on someone'
    },
    {
      'name': 'option',
      'desc': 'Show current group\'s item options'
    },
    {
      'name': 'about',
      'desc': 'Shows bot\'s informations'
    }
  ]
}

// /start command
bot.on(`/${commands.list[0].name}`, (msg) => {
  msg.reply.text(`Hello! I am Club Mate Bot, I\'m here to help you manage your mate consumption. Please type '/help' to begin!`)
})

// /help command
bot.on(`/${commands.list[1].name}`, (msg) => {
  helpmsg = ''
  for (var i = 0;i < commands.list.length;i++) {
    helpmsg += `/${commands.list[i].name}: ${commands.list[i].desc} \n`
  }
  msg.reply.text(helpmsg)
})

// /setoption command
bot.on(`/${commands.list[2].name}`, (msg) => {
  let args = msg.text.split(' ')
  if (args[1] && args[2]) {
    switch (args[1]) {
      case 'box':
        if (isNaN(args[2])) {
          msg.reply.text('You must type a number!')
        } else {
          options[msg.chat.id].box = parseInt(args[2])
          utils.writeOptionsDataToFile(options)
          msg.reply.text(`The price of a box of mate is now ${options[msg.chat.id].box} ${options[msg.chat.id].currency}.\nYou can use /option to list current options.`)
        }
      break
      case 'bottle':
        if (isNaN(args[2])) {
          msg.reply.text('You must type a number!')
        } else {
          options[msg.chat.id].bottle = parseInt(args[2])
          utils.writeOptionsDataToFile(options)
          msg.reply.text(`The price of a bottle of mate is now ${options[msg.chat.id].bottle} ${options[msg.chat.id].currency}.\nYou can use /option to list current options.`)
        }
      break
      case 'currency':
        options[msg.chat.id].currency = args[2]
        utils.writeOptionsDataToFile(options)
        msg.reply.text(`The currency is now "${options[msg.chat.id].currency}".\nYou can use /option to list current options.`)
      break
      default:
        msg.reply.text(`${args[1]} is invalid!`)
    }
  } else {
    let message = 'Incorrect syntax, please type /' + commands.list[2].name + ' `<item>` `<value>`. Possible items are `box`, `bottle` or `currency`.'
    bot.sendMessage(msg.chat.id, message, {parseMode: 'Markdown'})
  }
})

// /drink command
bot.on(`/${commands.list[3].name}`, (msg) => {
  let gifWords = ['bottle', 'alcohol', 'cheers', 'drink', 'party']
  let pickedWord = gifWords[Math.floor(Math.random() * gifWords.length)]
  console.log(pickedWord)
  fetch(`https://api.giphy.com/v1/gifs/random?api_key=${Secrets.API_KEY}&tag=${pickedWord}&limit=1&offset=0&rating=G&lang=en`)
    .then(res => res.json())
    .then(json => {
      json

      msg.reply.video(`${json.data.images.original.url}`, {caption: `Cheers @${users[msg.chat.id][msg.from.id].username}!\nYou currently have ${users[msg.chat.id][msg.from.id].wallet} ${options[msg.chat.id].currency} in your wallet!`})
    })
    .catch(err => console.error(err))
  users[msg.chat.id][msg.from.id].wallet -= 2
  utils.writeUsersDataToFile(users)
})

// /buybox command
bot.on(`/${commands.list[4].name}`, (msg) => {
  users[msg.chat.id][msg.from.id].wallet += parseInt(options[msg.chat.id].box)
  utils.writeUsersDataToFile(users)
  msg.reply.text(`Thanks you @${users[msg.chat.id][msg.from.id].username}! You just bought a box of club-mate! :)\nYou currently have ${users[msg.chat.id][msg.from.id].wallet} ${options[msg.chat.id].currency} in your wallet!`)
})

// /balance command
bot.on(`/${commands.list[5].name}`, (msg) => {
  let table = new ascii().setHeading('Users', 'Wallets')
  Object.values(users[msg.chat.id]).forEach(element =>
    table.addRow(`@${element.username}`, `${element.wallet} ${options[msg.chat.id].currency}`)
  )
  bot.sendMessage(msg.chat.id, '```\n' + table.toString() + '\n```', {parseMode: 'Markdown'})
  table = ''
})

// /send command
bot.on([new RegExp('^\/'+`${commands.list[6].name}`+' (@.+) (\\d+)'), new RegExp('^\/'+`${commands.list[6].name}$`)], (msg, props) => {
  if(props.match[2]){
    let user = props.match[1].trim().substring(1)
    let amount = props.match[2].trim()
    let userid = utils.findUserIdByUsername(users[msg.chat.id], user)
    if (amount > 0) {
      try {
        users[msg.chat.id][userid].wallet -= parseInt(amount)
        users[msg.chat.id][msg.from.id].wallet += parseInt(amount)
        utils.writeUsersDataToFile(users)
        if(user === users[msg.chat.id][msg.from.id].username){
          msg.reply.text(`@${users[msg.chat.id][msg.from.id].username} tried to find a glitch in the matrix!`)
        } else {
          msg.reply.text(`@${users[msg.chat.id][msg.from.id].username} gave ${amount} ${options[msg.chat.id].currency} to @${users[msg.chat.id][userid].username}.`)
        }
      } catch (err) {
        msg.reply.text(`@${user} is not a user in your group/chat!`)
      }
    } else {
      msg.reply.text(`${amount} is an insufficient/invalid amount!`)
    }
  } else {
    let message = 'Incorrect syntax, please type /' + commands.list[6].name + ' `<@username>` `<amount>`.'
    bot.sendMessage(msg.chat.id, message, {parseMode: 'Markdown'})
  }
})

// /charge
bot.on([new RegExp('^\/'+`${commands.list[7].name}`+' (@.+) (-?\\d+)'), new RegExp('^\/'+`${commands.list[7].name}`+' (-?\\d+)'), new RegExp('^\/'+`${commands.list[7].name}$`)], (msg, props) => {
  if (props.match[2]) {
    let user = props.match[1].trim().substring(1)
    let amount = props.match[2].trim()
    let userid = utils.findUserIdByUsername(users[msg.chat.id], user)
    if (amount != 0) {
      try {
        users[msg.chat.id][userid].wallet += parseInt(amount)
        utils.writeUsersDataToFile(users)
        let walletOperationMesage = ''
        if (amount > 0) {
          walletOperationMesage = `@${users[msg.chat.id][msg.from.id].username} has deposited ${amount} ${options[msg.chat.id].currency} into @${users[msg.chat.id][userid].username}'s wallet.`
        } else {
          walletOperationMesage = `@${users[msg.chat.id][msg.from.id].username} has withdrawn ${amount.substring(1)} ${options[msg.chat.id].currency} from @${users[msg.chat.id][userid].username}'s wallet.`
        }
        walletOperationMesage += `\n@${users[msg.chat.id][userid].username} currently has ${users[msg.chat.id][userid].wallet} ${options[msg.chat.id].currency} in his wallet!`
        msg.reply.text(walletOperationMesage)
      } catch (err) {
        msg.reply.text(`@${user} is not a user in your group/chat!`)
      }
    } else {
      msg.reply.text(`${amount} is an invalid amount!`)
    }
  } else if (props.match[1]) {
    let amount = props.match[1].trim()
    if (amount != 0) {
        users[msg.chat.id][msg.from.id].wallet += parseInt(amount)
        utils.writeUsersDataToFile(users)
        msg.reply.text(`@${users[msg.chat.id][msg.from.id].username} charged himself ${amount} ${options[msg.chat.id].currency}.\n@${users[msg.chat.id][msg.from.id].username} currently has ${users[msg.chat.id][msg.from.id].wallet} ${options[msg.chat.id].currency} in his wallet!`)
    } else {
      msg.reply.text(`${amount} is an invalid amount!`)
    }
  } else {
    let message = 'Incorrect syntax, please type /' + commands.list[7].name + ' `<@username>` `<amount>`.'
    bot.sendMessage(msg.chat.id, message, {parseMode: 'Markdown'})
  }
})

// /option command
bot.on(`/${commands.list[8].name}`, (msg) => {
  let table = new ascii().setHeading('Option', 'Value')
  table.addRow(`Box`, `${options[msg.chat.id].box} ${options[msg.chat.id].currency}`)
  table.addRow(`Bottle`, `${options[msg.chat.id].bottle} ${options[msg.chat.id].currency}`)
  table.addRow(`Currency`, `${options[msg.chat.id].currency}`)
  bot.sendMessage(msg.chat.id, 'Here are the current options in your group for your items:\n```\n' + table.toString() + '\n```', {parseMode: 'Markdown'})
  table = ''
})

// /about command
bot.on(`/${commands.list[9].name}`, (msg) => {
  let table = new ascii().setHeading('Item', 'Info')
  table.addRow(`Name`, `${Infos.name}`)
  table.addRow(`Version`, `${Infos.version}`)
  table.addRow(`Description`, `${Infos.description}`)
  table.addRow(`Host Server`, `${os.hostname}`)
  table.addRow(`Report Bug`, `https://github.com/epfl-dojo/mate-bot/issues`)
  table.addRow(`Contribute`, `${os.hostname}`)
  bot.sendMessage(msg.chat.id, '**BOT INFO**\n' +
   '*Bot Name*: ' + `${Infos.name}\n` +
   '*Version*: ' + `${Infos.version}\n` +
   '*Author*: ' + `${Infos.author}\n` +
   '*Description*: ' + `${Infos.description}\n` +
   '*License*: ' + `[${Infos.license} ⬈](https://opensource.com/licenses/${Infos.license})\n` +
   '*Host Server*: ' + `${os.hostname}\n` +
   '*Report Bug*: ' + `[link ⬈](${Infos.bugs.url})\n` +
   '*Readme*: ' + `[link ⬈](${Infos.homepage})\n`, {parseMode: 'Markdown'})
  table = ''
})

// /dump command
bot.on('/dump', async (msg) => {
  return bot.sendDocument(msg.from.id, 'users_data.json')
})

bot.start()