chipmunkbot3/commands/seen.js

const { literal, argument, string, DynamicCommandExceptionType } = require('brigadier-commands')
const TextMessage = require('../util/command/text_message')

const NEVER_SEEN_ERROR = new DynamicCommandExceptionType(username => new TextMessage([username, ' was never seen']))
const UNABLE_TO_LOAD_PLAYER_DATA_ERROR = new DynamicCommandExceptionType(error => new TextMessage([{ text: 'An unexpected error occurred trying to load that player\'s data', hoverEvent: { action: 'show_text', contents: error.stack } }]))

module.exports = {
  register (dispatcher) {
    const node = dispatcher.register(
      literal('seen')
        .then(
          argument('username', string())
            .executes(this.seenCommand)
        )
    )

    node.description = 'Shows when a player was first and last seen'
    node.permissionLevel = 0
  },

  async seenCommand (context) {
    const source = context.source
    const bot = source.bot

    const username = context.getArgument('username')

    let playerData = Object.values(bot.playerData).find(playerData => playerData.data.username === username)

    if (!playerData) {
      try {
        playerData = await bot.loadPlayerData(username)
      } catch (error) {
        throw UNABLE_TO_LOAD_PLAYER_DATA_ERROR.create(error)
      }
    }

    if (!playerData.data?.seen) throw NEVER_SEEN_ERROR.create(username)

    const { first, last } = playerData.data.seen
    source.sendFeedback([
      { text: '', ...bot.styles.primary },
      { text: username, ...bot.styles.secondary },
      ' was first seen on ',
      { text: first, ...bot.styles.secondary },
      ' and last seen on ',
      { text: last, ...bot.styles.secondary }
    ], false)
  }
}