// 云函数路由入口文件
const cloud = require('wx-server-sdk');

// 导入各个模块
const authModule = require('./modules/auth');
const gameDataModule = require('./modules/gameData');
const fightHerosModule = require('./modules/fightHeros');
const herosModule = require('./modules/heros');
const inventoryModule = require('./modules/inventory');
const itemsModule = require('./modules/items');
const talsModule = require('./modules/tals');
const equipsModule = require('./modules/equips');
const responseModule = require('./modules/response');

cloud.init({ env: cloud.DYNAMIC_CURRENT_ENV }); // 使用当前云环境

// 云函数入口函数
exports.main = async (event, context) => {
  const startTime = Date.now();
  
  try {
    // 验证命令参数
    const validation = responseModule.validateRequiredParams(event, ['cmd']);
    if (validation) {
      return validation;
    }
    
    const { cmd, ...params } = event;
  const wxContext = cloud.getWXContext();
  const db = cloud.database({
    env: cloud.DYNAMIC_CURRENT_ENV,
    throwOnNotFound: false
  });
    
    console.log(`[${cmd}] Request from ${wxContext.OPENID}:`, params);
    
    // 路由分发
    let result;
    switch (cmd) {
      // ==================== 认证相关 ====================
      case 'login':
        result = await authModule.login(db, wxContext);
        break;
        
      case 'user_info':
        result = await authModule.getUserInfo(db, wxContext.OPENID);
        break;
        
      case 'version':
        result = await authModule.checkVersion(db, wxContext.OPENID);
        break;
        
      case 'upgrade':
        result = await authModule.upgradeUserData(db, wxContext.OPENID);
        break;
        
      // ==================== 基础游戏数据 ====================
      case 'data_get':
        result = await gameDataModule.getData(db, wxContext.OPENID);
        break;
        
      case 'data_update':
        const merge = params.merge !== false; // 默认合并
        result = await gameDataModule.updateData(db, wxContext.OPENID, params.data, merge);
        break;
        
      case 'data_add':
        const fieldValidation = responseModule.validateRequiredParams(params, ['field', 'amount']);
        if (fieldValidation) return fieldValidation;
        result = await gameDataModule.addDataField(db, wxContext.OPENID, params.field, params.amount);
        break;
        
      case 'data_spend':
        const spendValidation = responseModule.validateRequiredParams(params, ['field', 'amount']);
        if (spendValidation) return spendValidation;
        result = await gameDataModule.spendDataField(db, wxContext.OPENID, params.field, params.amount);
        break;

      case 'data_reset':
        result = await gameDataModule.resetData(db, wxContext.OPENID);
        break;
        
      // ==================== 出战英雄 ====================
      case 'fight_heros_get':
        result = await fightHerosModule.getFightHeros(db, wxContext.OPENID);
        break;
        
      case 'fight_hero_set':
        const heroSetValidation = responseModule.validateRequiredParams(params, ['position', 'hero_id']);
        if (heroSetValidation) return heroSetValidation;
        result = await fightHerosModule.setFightHero(db, wxContext.OPENID, params.position, params.hero_id);
        break;
        
      case 'fight_heros_update':
        const herosUpdateValidation = responseModule.validateRequiredParams(params, ['fight_heros']);
        if (herosUpdateValidation) return herosUpdateValidation;
        result = await fightHerosModule.updateFightHeros(db, wxContext.OPENID, params.fight_heros);
        break;
        
      case 'fight_heros_active':
        result = await fightHerosModule.getActiveFightHeros(db, wxContext.OPENID);
        break;
        
      case 'fight_heros_swap':
        const swapValidation = responseModule.validateRequiredParams(params, ['position1', 'position2']);
        if (swapValidation) return swapValidation;
        result = await fightHerosModule.swapFightHeros(db, wxContext.OPENID, params.position1, params.position2);
        break;
        
      case 'fight_heros_reset':
        result = await fightHerosModule.resetFightHeros(db, wxContext.OPENID);
        break;
        
      // ==================== 英雄管理 ====================
      case 'heros_get':
        result = await herosModule.getHeros(db, wxContext.OPENID);
        break;
        
      case 'hero_get':
        const heroGetValidation = responseModule.validateRequiredParams(params, ['hero_id']);
        if (heroGetValidation) return heroGetValidation;
        result = await herosModule.getHero(db, wxContext.OPENID, params.hero_id);
        break;
        
      case 'hero_add':
        const heroAddValidation = responseModule.validateRequiredParams(params, ['hero_id']);
        if (heroAddValidation) return heroAddValidation;
        result = await herosModule.addHero(db, wxContext.OPENID, params.hero_id, params.hero_data);
        break;
        
      case 'hero_update':
        const heroUpdateValidation = responseModule.validateRequiredParams(params, ['hero_id', 'update_data']);
        if (heroUpdateValidation) return heroUpdateValidation;
        result = await herosModule.updateHero(db, wxContext.OPENID, params.hero_id, params.update_data);
        break;
        
      case 'hero_property_set':
        const propValidation = responseModule.validateRequiredParams(params, ['hero_id', 'property', 'value']);
        if (propValidation) return propValidation;
        result = await herosModule.setHeroProperty(db, wxContext.OPENID, params.hero_id, params.property, params.value);
        break;
        
      case 'hero_levelup':
        const levelValidation = responseModule.validateRequiredParams(params, ['hero_id']);
        if (levelValidation) return levelValidation;
        result = await herosModule.levelUpHero(db, wxContext.OPENID, params.hero_id, params.levels);
        break;
        
      case 'hero_delete':
        const deleteValidation = responseModule.validateRequiredParams(params, ['hero_id']);
        if (deleteValidation) return deleteValidation;
        result = await herosModule.deleteHero(db, wxContext.OPENID, params.hero_id);
        break;
        
      case 'heros_owned':
        result = await herosModule.getOwnedHeroIds(db, wxContext.OPENID);
        break;
        
      // ==================== 库存管理 (通用接口) ====================
      case 'inventory_get':
        const invGetValidation = responseModule.validateRequiredParams(params, ['type']);
        if (invGetValidation) return invGetValidation;
        result = await inventoryModule.getInventory(db, wxContext.OPENID, params.type);
        break;
        
      case 'inventory_item_get':
        const itemGetValidation = responseModule.validateRequiredParams(params, ['type', 'item_id']);
        if (itemGetValidation) return itemGetValidation;
        result = await inventoryModule.getInventoryItem(db, wxContext.OPENID, params.type, params.item_id);
        break;
        
      case 'inventory_item_add':
        const itemAddValidation = responseModule.validateRequiredParams(params, ['type', 'item_id', 'count']);
        if (itemAddValidation) return itemAddValidation;
        result = await inventoryModule.addInventoryItem(db, wxContext.OPENID, params.type, params.item_id, params.count);
        break;
        
      case 'inventory_item_consume':
        const itemConsumeValidation = responseModule.validateRequiredParams(params, ['type', 'item_id', 'count']);
        if (itemConsumeValidation) return itemConsumeValidation;
        result = await inventoryModule.consumeInventoryItem(db, wxContext.OPENID, params.type, params.item_id, params.count);
        break;
        
      case 'inventory_item_set':
        const itemSetValidation = responseModule.validateRequiredParams(params, ['type', 'item_id', 'count']);
        if (itemSetValidation) return itemSetValidation;
        result = await inventoryModule.setInventoryItem(db, wxContext.OPENID, params.type, params.item_id, params.count);
        break;
        
      case 'inventory_update':
        const invUpdateValidation = responseModule.validateRequiredParams(params, ['type', 'data']);
        if (invUpdateValidation) return invUpdateValidation;
        const invMerge = params.merge !== false;
        result = await inventoryModule.updateInventory(db, wxContext.OPENID, params.type, params.data, invMerge);
        break;
        
      case 'inventory_reset':
        const invResetValidation = responseModule.validateRequiredParams(params, ['type']);
        if (invResetValidation) return invResetValidation;
        result = await inventoryModule.resetInventory(db, wxContext.OPENID, params.type);
        break;
        
      case 'inventory_owned':
        const invOwnedValidation = responseModule.validateRequiredParams(params, ['type']);
        if (invOwnedValidation) return invOwnedValidation;
        result = await inventoryModule.getOwnedItems(db, wxContext.OPENID, params.type);
        break;
        
      // ==================== 物品管理 (items) ====================
      case 'items_get':
        result = await itemsModule.getItems(db, wxContext.OPENID);
        break;
        
      case 'item_get':
        const itemIdValidation = responseModule.validateRequiredParams(params, ['item_id']);
        if (itemIdValidation) return itemIdValidation;
        result = await itemsModule.getItem(db, wxContext.OPENID, params.item_id);
        break;
        
      case 'item_add':
        const addItemValidation = responseModule.validateRequiredParams(params, ['item_id', 'count']);
        if (addItemValidation) return addItemValidation;
        result = await itemsModule.addItem(db, wxContext.OPENID, params.item_id, params.count);
        break;
        
      case 'item_consume':
        const consumeItemValidation = responseModule.validateRequiredParams(params, ['item_id', 'count']);
        if (consumeItemValidation) return consumeItemValidation;
        result = await itemsModule.consumeItem(db, wxContext.OPENID, params.item_id, params.count);
        break;
        
      case 'item_set':
        const setItemValidation = responseModule.validateRequiredParams(params, ['item_id', 'count']);
        if (setItemValidation) return setItemValidation;
        result = await itemsModule.setItem(db, wxContext.OPENID, params.item_id, params.count);
        break;
        
      case 'items_update':
        const updateItemsValidation = responseModule.validateRequiredParams(params, ['data']);
        if (updateItemsValidation) return updateItemsValidation;
        const itemsMerge = params.merge !== false;
        result = await itemsModule.updateItems(db, wxContext.OPENID, params.data, itemsMerge);
        break;
        
      case 'items_reset':
        result = await itemsModule.resetItems(db, wxContext.OPENID);
        break;
        
      case 'items_owned':
        result = await itemsModule.getOwnedItems(db, wxContext.OPENID);
        break;
        
      // ==================== 天赋管理 (tals) ====================
      case 'tals_get':
        result = await talsModule.getTals(db, wxContext.OPENID);
        break;
        
      case 'tal_get':
        const talIdValidation = responseModule.validateRequiredParams(params, ['tal_id']);
        if (talIdValidation) return talIdValidation;
        result = await talsModule.getTal(db, wxContext.OPENID, params.tal_id);
        break;
        
      case 'tal_add':
        const addTalValidation = responseModule.validateRequiredParams(params, ['tal_id', 'count']);
        if (addTalValidation) return addTalValidation;
        result = await talsModule.addTal(db, wxContext.OPENID, params.tal_id, params.count);
        break;
        
      case 'tal_consume':
        const consumeTalValidation = responseModule.validateRequiredParams(params, ['tal_id', 'count']);
        if (consumeTalValidation) return consumeTalValidation;
        result = await talsModule.consumeTal(db, wxContext.OPENID, params.tal_id, params.count);
        break;
        
      case 'tal_set':
        const setTalValidation = responseModule.validateRequiredParams(params, ['tal_id', 'count']);
        if (setTalValidation) return setTalValidation;
        result = await talsModule.setTal(db, wxContext.OPENID, params.tal_id, params.count);
        break;
        
      case 'tals_update':
        const updateTalsValidation = responseModule.validateRequiredParams(params, ['data']);
        if (updateTalsValidation) return updateTalsValidation;
        const talsMerge = params.merge !== false;
        result = await talsModule.updateTals(db, wxContext.OPENID, params.data, talsMerge);
        break;
        
      case 'tals_reset':
        result = await talsModule.resetTals(db, wxContext.OPENID);
        break;
        
      case 'tals_owned':
        result = await talsModule.getOwnedTals(db, wxContext.OPENID);
        break;
        
      // ==================== 装备管理 (equips) ====================
      case 'equips_get':
        result = await equipsModule.getEquips(db, wxContext.OPENID);
        break;
        
      case 'equip_get':
        const equipIdValidation = responseModule.validateRequiredParams(params, ['equip_id']);
        if (equipIdValidation) return equipIdValidation;
        result = await equipsModule.getEquip(db, wxContext.OPENID, params.equip_id);
        break;
        
      case 'equip_add':
        const addEquipValidation = responseModule.validateRequiredParams(params, ['equip_id', 'count']);
        if (addEquipValidation) return addEquipValidation;
        result = await equipsModule.addEquip(db, wxContext.OPENID, params.equip_id, params.count);
        break;
        
      case 'equip_consume':
        const consumeEquipValidation = responseModule.validateRequiredParams(params, ['equip_id', 'count']);
        if (consumeEquipValidation) return consumeEquipValidation;
        result = await equipsModule.consumeEquip(db, wxContext.OPENID, params.equip_id, params.count);
        break;
        
      case 'equip_set':
        const setEquipValidation = responseModule.validateRequiredParams(params, ['equip_id', 'count']);
        if (setEquipValidation) return setEquipValidation;
        result = await equipsModule.setEquip(db, wxContext.OPENID, params.equip_id, params.count);
        break;
        
      case 'equips_update':
        const updateEquipsValidation = responseModule.validateRequiredParams(params, ['data']);
        if (updateEquipsValidation) return updateEquipsValidation;
        const equipsMerge = params.merge !== false;
        result = await equipsModule.updateEquips(db, wxContext.OPENID, params.data, equipsMerge);
        break;
        
      case 'equips_reset':
        result = await equipsModule.resetEquips(db, wxContext.OPENID);
        break;
        
      case 'equips_owned':
        result = await equipsModule.getOwnedEquips(db, wxContext.OPENID);
        break;
        
        
      default:
        const availableCommands = [
          'login', 'user_info', 'version', 'upgrade',
          'data_get', 'data_update', 'data_add', 'data_spend', 'data_set', 'data_reset',
          'fight_heros_get', 'fight_hero_set', 'fight_heros_update', 'fight_heros_active', 'fight_heros_swap', 'fight_heros_reset',
          'heros_get', 'hero_get', 'hero_add', 'hero_update', 'hero_property_set', 'hero_levelup', 'hero_delete', 'heros_owned',
          'inventory_get', 'inventory_item_get', 'inventory_item_add', 'inventory_item_consume', 'inventory_item_set', 'inventory_update', 'inventory_reset', 'inventory_owned',
          'items_get', 'item_get', 'item_add', 'item_consume', 'item_set', 'items_update', 'items_reset', 'items_owned',
          'tals_get', 'tal_get', 'tal_add', 'tal_consume', 'tal_set', 'tals_update', 'tals_reset', 'tals_owned',
          'equips_get', 'equip_get', 'equip_add', 'equip_consume', 'equip_set', 'equips_update', 'equips_reset', 'equips_owned',
          'load', 'save'
        ];
        result = responseModule.unknownCommand(cmd, availableCommands);
        break;
    }
    
    // 添加执行时间
    const executionTime = Date.now() - startTime;
    if (result && typeof result === 'object') {
      result.execution_time = executionTime;
    }
    
    console.log(`[${cmd}] Response (${executionTime}ms):`, result.code, result.msg);
    return result;
    
  } catch (error) {
    console.error("Cloud function error:", error);
    return responseModule.systemError("Cloud function execution failed", error);
  }
};