// src/store/index.js
import { configureStore, combineReducers } from '@reduxjs/toolkit';
import communityDataReducer from './slices/communityDataSlice';
// ⚡ PostHog 延迟加载：移除同步导入，首屏减少 ~180KB
// import posthogReducer from './slices/posthogSlice';
// import posthogMiddleware from './middleware/posthogMiddleware';
import industryReducer from './slices/industrySlice';
import stockReducer from './slices/stockSlice';
import authModalReducer from './slices/authModalSlice';
import subscriptionReducer from './slices/subscriptionSlice';
import deviceReducer from './slices/deviceSlice'; // ✅ 设备检测状态管理
import { eventsApi } from './api/eventsApi'; // ✅ RTK Query API

// ⚡ 基础 reducers（首屏必需）
const staticReducers = {
  communityData: communityDataReducer,
  industry: industryReducer, // ✅ 行业分类数据管理
  stock: stockReducer, // ✅ 股票和事件数据管理
  authModal: authModalReducer, // ✅ 认证弹窗状态管理
  subscription: subscriptionReducer, // ✅ 订阅信息状态管理
  device: deviceReducer, // ✅ 设备检测状态管理（移动端/桌面端）
  [eventsApi.reducerPath]: eventsApi.reducer, // ✅ RTK Query 事件 API
};

// ⚡ 动态 reducers 注册表
const asyncReducers = {};

// ⚡ 创建根 reducer 的工厂函数
const createRootReducer = () => combineReducers({
  ...staticReducers,
  ...asyncReducers,
});

export const store = configureStore({
  reducer: createRootReducer(),
  middleware: (getDefaultMiddleware) =>
    getDefaultMiddleware({
      serializableCheck: {
        // 忽略这些 action types 的序列化检查
        ignoredActions: [
          'communityData/fetchPopularKeywords/fulfilled',
          'communityData/fetchHotEvents/fulfilled',
          'posthog/trackEvent/fulfilled', // ✅ PostHog 事件追踪（延迟加载后仍需）
          'stock/fetchEventStocks/fulfilled',
          'stock/fetchStockQuotes/fulfilled',
        ],
      },
    })
      // ⚡ PostHog 中间件延迟加载，首屏不再需要
      .concat(eventsApi.middleware), // ✅ RTK Query 中间件（自动缓存、去重、重试）
});

/**
 * ⚡ 动态注入 reducer（用于延迟加载模块）
 * @param {string} key - reducer 的键名
 * @param {Function} reducer - reducer 函数
 */
export const injectReducer = (key, reducer) => {
  if (asyncReducers[key]) {
    return; // 已注入，避免重复
  }
  asyncReducers[key] = reducer;
  store.replaceReducer(createRootReducer());
};

/**
 * @typedef {typeof store.dispatch} AppDispatch
 * @typedef {ReturnType<typeof store.getState>} RootState
 */

export default store;