chipmunkbot3/plugins/mail.js

const { createUuidSelector } = require('../util/command/utility')

function inject (bot) {
  bot.sendMail = sendMail

  async function sendMail (sender, receiver, message) {
    let playerData = Object.values(bot.playerData).find(playerData => playerData.data.username === receiver)

    let loadedManually = false
    if (!playerData) {
      playerData = await bot.loadPlayerData(receiver)
      loadedManually = true
    }

    if (loadedManually) playerData.data.username ??= receiver

    playerData.data.mail ??= []
    playerData.data.mail.push({ sender: sender, message, host: bot.host, port: bot.port })

    const previouslyUnread = playerData.data.mailUnread
    playerData.data.mailUnread = true

    if (!loadedManually && !previouslyUnread) {
      for (const bot2 of bot.bots) {
        const player = bot2.players.find(player => player.username === receiver)
        if (player) sendMailNotification(player.uuid)
      }
    }

    if (loadedManually) await playerData.save()
  }

  bot.on('player_data_loaded', (player, playerData) => {
    if (!playerData.data.mailUnread) return
    sendMailNotification(player.uuid)
  })

  function sendMailNotification (uuid) {
    const msg = [{ text: "You've got mail!\nRun ", ...bot.styles.primary }, { text: bot.commands.prefixes[0] + 'mail list', ...bot.styles.secondary }, ' to read it']
    bot.tellraw(msg, createUuidSelector(uuid))
  }
}

module.exports = inject