import * as I from 'immutable';

import {Packet} from '@avocado/net';

export default class InputPacket extends Packet {

  static setActionIds(actionIds) {
    this._actionIds = actionIds;
    this._idActions = {};
    for (const action in this._actionIds) {
      this._idActions[this._actionIds[action]] = action;
    }
  }

  static pack(packet) {
    const data = packet.data[1];
    for (let i = 0; i < data.length; i++) {
      const {action, value} = data[i];
      const actionId = this._actionIds[action];
      data[i] = ((actionId & 0xFF) << 24) | (value & 0xFFFFFF);
    }
    return super.pack(packet);
  }

  static get schema() {
    return {
      ...super.schema,
      data: ['uint32'],
    };
  }

  static unpack(packet) {
    const data = super.unpack(packet);
    for (let i = 0; i < data.length; i++) {
      const actionId = data[i] >> 24;
      const value = data[i] & 0xFFFFFF;
      data[i] = {
        action: this._idActions[actionId],
        // -1 is nice to handle, anyway. We'll be a pal.
        value: 16777214 === value ? -1 : value,
      };
    }
    return data;
  }

}