/* eslint-disable max-len */
/* eslint-disable require-jsdoc */
const config = require('../config');
const chatMessage = require('prismarine-chat')('1.18.2');
const Vec3 = require('vec3');

const relativePosition = new Vec3(0, 0, 0);

function inject(bot) {
  bot.createCore = (layers = config.core.layers) => {
    const core = {
      isCore(position) {
        return position.x >= core.start.x && position.x <= core.end.x && position.y >= core.start.y && position.y <= core.end.y && position.z >= core.start.z && position.z <= core.end.z;
      },
      run(command) {
        try {
          if (config.useChat && command.startsWith('minecraft:tellraw @a ') && !command.includes('Console') && !command.includes('Discord')) {
            bot.chat(chatMessage.fromNotch(command.replace('minecraft:tellraw @a ', '')).toMotd().replaceAll('\xa7', '&'));
            return;
          }

          relativePosition.x++;

          if (relativePosition.x >= 16) {
            relativePosition.x = 0;
            relativePosition.y++;
          }

          if (relativePosition.y >= layers) {
            relativePosition.y = 0;
            relativePosition.z++;
          }

          if (relativePosition.z >= 16) {
            relativePosition.z = 0;
          }

          const impulseMode = bot.options.host === 'mc.chomens41793.ga';

          const location = {
            x: core.start.x + relativePosition.x,
            y: core.start.y + relativePosition.y,
            z: core.start.z + relativePosition.z,
          };

          if (impulseMode) bot.write('update_command_block', {location, command: command.substring(0, 32767), mode: 0, flags: 0});
          bot.write('update_command_block', {location, command: command.substring(0, 32767), mode: impulseMode ? 2 : 1, flags: 0b100});
        } catch (e) {
          return;
        }
      },
      fillCore(useCore) {
        const fillCommand = `/minecraft:fill ${core.start.x} ${core.start.y} ${core.start.z} ${core.end.x} ${core.end.y} ${core.end.z} command_block{CustomName:'{"text":"ChomeNS Bot Core","color":"yellow"}'}`;
        if (useCore==true) {
          bot.core.run(fillCommand);
        } else {
          bot.chat(fillCommand);
        }

        bot.emit('core_filled');
      },
    };

    bot._client.on('position', (position) => {
      bot.position = position;

      bot.emit('position', position);
    });

    bot._client.on('block_change', (packet) => {
      if (core.isCore(packet.location) && packet.type===0) fillCore();
    });

    bot._client.on('multi_block_change', (packet) => {
      if (core.start===packet.chunkCoordinates || core.end===packet.chunkCoordinates) fillCore();
    });

    bot.on('position', fillCore);

    fillCore();

    bot.core = core;

    return core;

    function fillCore() {
      core.start = new Vec3(
          Math.floor(bot.position.x / 16) * 16,
          0 /* bot.position.y */,
          Math.floor(bot.position.z / 16) * 16,
      ).floor();
      core.end = core.start.clone().translate(16, layers, 16).subtract(new Vec3(1, 1, 1));

      core.fillCore();
    }
  };
}

module.exports = {inject};