/**
 * @module core/parsers
 */
import { PlayerData, StatType } from '../../common';
import { ObjectData, ObjectStatusData, StatData } from '../../net';

/**
 * A static class used to parse entity data into `PlayerData` objects.
 */
export class StatusParser {

  /**
   * Processes the `data` and returns the resulting `PlayerData` object.
   * @param data The data to process.
   */
  static parseObject(data: ObjectData): PlayerData {
    const playerData = this.processObjectStatus(data.status);
    playerData.class = data.objectType;
    return playerData;
  }

  /**
   * Processes the `data` and returns the result. If `currentData` is provided, it will be
   * used as a starting point for the returned `PlayerData`.
   * @param data The data to process.
   * @param currentData The existing `PlayerData`.
   */
  static processObjectStatus(data: ObjectStatusData, currentData?: PlayerData): PlayerData {
    const playerData = this.processStatData(data.stats, currentData);
    playerData.worldPos = data.pos;
    playerData.objectId = data.objectId;

    return playerData;
  }

  /**
   * Process a list of stats and returns the result. If `currentData` is provided, it will be
   * used as a starting point for the returned `PlayerData`.
   * @param stats The stats to process.
   * @param currentData The existing `PlayerData`.
   */
  static processStatData(stats: StatData[], currentData?: PlayerData): PlayerData {
    const playerData = currentData || { inventory: [] } as PlayerData;
    for (const stat of stats) {
      switch (stat.statType) {
        case StatType.NAME_STAT:
          playerData.name = stat.stringStatValue;
          continue;
        case StatType.LEVEL_STAT:
          playerData.level = stat.statValue;
          continue;
        case StatType.EXP_STAT:
          playerData.exp = stat.statValue;
          continue;
        case StatType.CURR_FAME_STAT:
          playerData.currentFame = stat.statValue;
          continue;
        case StatType.NUM_STARS_STAT:
          playerData.stars = stat.statValue;
          continue;
        case StatType.ACCOUNT_ID_STAT:
          playerData.accountId = stat.stringStatValue;
          continue;
        case StatType.FAME_STAT:
          playerData.accountFame = stat.statValue;
          continue;
        case StatType.CREDITS_STAT:
          playerData.gold = stat.statValue;
          continue;
        case StatType.MAX_HP_STAT:
          playerData.maxHP = stat.statValue;
          continue;
        case StatType.MAX_MP_STAT:
          playerData.maxMP = stat.statValue;
          continue;
        case StatType.HP_STAT:
          playerData.hp = stat.statValue;
          continue;
        case StatType.MP_STAT:
          playerData.mp = stat.statValue;
          continue;
        case StatType.ATTACK_STAT:
          playerData.atk = stat.statValue;
          continue;
        case StatType.DEFENSE_STAT:
          playerData.def = stat.statValue;
          continue;
        case StatType.SPEED_STAT:
          playerData.spd = stat.statValue;
          continue;
        case StatType.DEXTERITY_STAT:
          playerData.dex = stat.statValue;
          continue;
        case StatType.VITALITY_STAT:
          playerData.vit = stat.statValue;
          continue;
        case StatType.CONDITION_STAT:
          playerData.condition = stat.statValue;
          continue;
        case StatType.WISDOM_STAT:
          playerData.wis = stat.statValue;
          continue;
        case StatType.HEALTH_POTION_STACK_STAT:
          playerData.hpPots = stat.statValue;
          continue;
        case StatType.MAGIC_POTION_STACK_STAT:
          playerData.mpPots = stat.statValue;
          continue;
        case StatType.HASBACKPACK_STAT:
          playerData.hasBackpack = stat.statValue === 1;
          continue;
        case StatType.NAME_CHOSEN_STAT:
          playerData.nameChosen = stat.statValue !== 0;
          continue;
        case StatType.GUILD_NAME_STAT:
          playerData.guildName = stat.stringStatValue;
          continue;
        case StatType.GUILD_RANK_STAT:
          playerData.guildRank = stat.statValue;
          continue;
        default:
          if (stat.statType >= StatType.INVENTORY_0_STAT && stat.statType <= StatType.INVENTORY_11_STAT) {
            playerData.inventory[stat.statType - 8] = stat.statValue;
          } else if (stat.statType >= StatType.BACKPACK_0_STAT && stat.statType <= StatType.BACKPACK_7_STAT) {
            playerData.inventory[stat.statType - 59] = stat.statValue;
          }
      }
    }
    return playerData;
  }
}