const nbt = require('prismarine-nbt');
async function inject (bot, options) {
  bot.core = {   
    // what you think im doing? look at line 17
    area: {
      start: options.core?.area.start ?? { x: 0, y: 0, z: 0 },
      end: options.core?.area.end ?? { x: 15, y: 0, z: 15 }
    },
    position: null,
    currentBlockRelative: { x: 0, y: 0, z: 0 },

    refill () {
      const pos = bot.core.position
      const { start, end } = bot.core.area

      if (!pos) return

  
      bot.command(`fill ${pos.x + start.x} ${pos.y + start.y} ${pos.z + start.z} ${pos.x + end.x} ${pos.y + end.y} ${pos.z + end.z} repeating_command_block{CustomName: '{"text":"${bot.options.Core.customName}","color":"dark_red","clickEvent":{"action":"open_url","value":"${bot.options.Core.customName}"}}'} destroy`)
    },

    move (pos = bot.position) {
      bot.core.position = {
        x: Math.floor(pos.x / 16) * 16,
        y: 0,
        z: Math.floor(pos.z / 16) * 16
      }
      bot.core.refill()
    },

    currentBlock () {
      const relativePosition = bot.core.currentBlockRelative
      const corePosition = bot.core.position
      if (!corePosition) return -1
      return { x: relativePosition.x + corePosition.x, y: relativePosition.y + corePosition.y, z: relativePosition.z + corePosition.z }
    },

    incrementCurrentBlock () {
      const relativePosition = bot.core.currentBlockRelative
      const { start, end } = bot.core.area

      relativePosition.x++

      if (relativePosition.x > end.x) {
        relativePosition.x = start.x
        relativePosition.z++
      }

      if (relativePosition.z > end.z) {
        relativePosition.z = start.z
        relativePosition.y++
      }

      if (relativePosition.y > end.y) {
        relativePosition.x = start.x
        relativePosition.y = start.y
        relativePosition.z = start.z
      }
    },

    run (command) {
      const location = bot.core.currentBlock()
      if (!location) return

      bot._client.write('update_command_block', { command: command.substring(0, 32767), location, mode: 1, flags: 0b100 })

      bot.core.incrementCurrentBlock()

      // added .substring(0, 32767) so it won't kick the bot if the command is too long.
    }
  }
  if (!bot.options.Core.core) return
  bot.on('move', () => {
    bot.core.move(bot.position)
   //setTimeout(() => bot.core.run('say hi'), 100)
  })
}

module.exports = inject