实际开发中，尤其是面向 c 端的用户，任何业务和用户操作我认为都应该包含这四种状态，loading，error，empty，success，为了简化 actionType 的分散性，所以就简单封装了一个 acitonModel

/**  * generator common actionModel 普通模型  * @param {*} prefix 前缀，需要保证唯一性  */ export function generatorCommonActionModel(prefix) {     const load_loading_action_type = prefix + common_load_loading;     const load_empty_action_type = prefix + common_load_empty;     const load_error_action_type = prefix + common_load_error;     const load_success_action_type = prefix + common_load_success;     const get_common_action_type = prefix + get_common;     const reset_action_type = prefix + common_reset;      return {         prefix,         load_loading_action_type,         load_empty_action_type,         load_error_action_type,         load_success_action_type,         get_common_action_type,         reset_action_type,         loadLoadingActionCreator: params => ({ type: load_loading_action_type, params }),         loadEmptyActionCreator: params => ({ type: load_empty_action_type, params }),         loadErrorActionCreator: params => ({ type: load_error_action_type, params }),         loadSuccessActionCreator: (data, params) => ({ type: load_success_action_type, payload: { data, params } }),         getCommonActionCreator: params => ({ type: get_common_action_type, params }),         resetActionCreator: params => ({ type: reset_action_type, params })     } } 

actionModel 根据 key 的唯一性来区分，使用的时候直接使用该函数可以快速生成对应的 action 模型，实际运用中也确实感受到了其方便性，但随之带来的问题就来了，就是 reducer 层，始终想不到该如何去优化处理，目前的做法

/**  * 统一处理 commonModelActions  * @param {*} actionModel 需遵循 actionHelp 规范  * @param {*} stateModel  需遵循 stateModel 中的 commonStateModel 数据模型规范  * @param {*} action dispatch 出来的 action  */ export function reducerGeneratorCommonActionModel(actionModel, stateModel, action) {     switch (action.type) {         case actionModel.load_loading_action_type:             return { ...stateModel, load_status: NetWorkComponent.LOAD_LOADING };         case actionModel.load_empty_action_type:             return { ...stateModel, load_status: NetWorkComponent.LOAD_EMPTY };         case actionModel.load_error_action_type:             return { ...stateModel, load_status: NetWorkComponent.LOAD_ERROR };         case actionModel.load_success_action_type:             return {                 ...stateModel,                 load_status: Array.isArray(action.payload.data) ? action.payload.data.length > 0 ? NetWorkComponent.LOAD_SUCCESS : NetWorkComponent.LOAD_EMPTY : NetWorkComponent.LOAD_SUCCESS,                 data: action.payload.data             };         default:             return stateModel;     } }    export default function (state = defaultState, action) {     switch (action.type) {         //当前城市广告位         case goodShopAdvertisingCommonActionModel.load_loading_action_type:         case goodShopAdvertisingCommonActionModel.load_empty_action_type:         case goodShopAdvertisingCommonActionModel.load_error_action_type:         case goodShopAdvertisingCommonActionModel.load_success_action_type:             return { ...state, advertisings: reducerGeneratorCommonActionModel(goodShopAdvertisingCommonActionModel, state.advertisings, action) }         //当前城市的榜单列表         case goodShopRankingShopCommonActionModel.load_loading_action_type:         case goodShopRankingShopCommonActionModel.load_empty_action_type:         case goodShopRankingShopCommonActionModel.load_error_action_type:         case goodShopRankingShopCommonActionModel.load_success_action_type:             return { ...state, rankingShops: reducerGeneratorCommonActionModel(goodShopRankingShopCommonActionModel, state.rankingShops, action) }         //当前城市的爆品秒杀商品列表         case goodShopSeckillCommodityCommonActionModel.load_loading_action_type:         case goodShopSeckillCommodityCommonActionModel.load_empty_action_type:         case goodShopSeckillCommodityCommonActionModel.load_error_action_type:         case goodShopSeckillCommodityCommonActionModel.load_success_action_type:             return { ...state, seckillCommoditys: reducerGeneratorCommonActionModel(goodShopSeckillCommodityCommonActionModel, state.seckillCommoditys, action) }         //附近的商户         case goodShopNearbyShopListPagingActionModel.load_loading_action_type:         case goodShopNearbyShopListPagingActionModel.load_empty_action_type:         case goodShopNearbyShopListPagingActionModel.load_error_action_type:         case goodShopNearbyShopListPagingActionModel.load_more_loading_action_type:         case goodShopNearbyShopListPagingActionModel.load_more_empty_action_type:         case goodShopNearbyShopListPagingActionModel.load_more_error_action_type:         case goodShopNearbyShopListPagingActionModel.load_success_action_type:             return { ...state, nearbyShops: reducerGeneratorListPagingActionModel(goodShopNearbyShopListPagingActionModel, state.nearbyShops, action) }         //推荐的商户         case goodShopRecommendShopCommonActionModel.load_loading_action_type:         case goodShopRecommendShopCommonActionModel.load_empty_action_type:         case goodShopRecommendShopCommonActionModel.load_error_action_type:         case goodShopRecommendShopCommonActionModel.load_success_action_type:             return { ...state, recommendShops: reducerGeneratorCommonActionModel(goodShopRecommendShopCommonActionModel, state.recommendShops, action) }         //人气商圈的商户         case goodShopHotShopListPagingActionModel.load_loading_action_type:         case goodShopHotShopListPagingActionModel.load_empty_action_type:         case goodShopHotShopListPagingActionModel.load_error_action_type:         case goodShopHotShopListPagingActionModel.load_more_loading_action_type:         case goodShopHotShopListPagingActionModel.load_more_empty_action_type:         case goodShopHotShopListPagingActionModel.load_more_error_action_type:         case goodShopHotShopListPagingActionModel.load_success_action_type:             return { ...state, hotShops: reducerGeneratorListPagingActionModel(goodShopHotShopListPagingActionModel, state.hotShops, action) };         //人气商圈栏目分类         case goodShopHotShopClassifyCommonActionModel.load_loading_action_type:         case goodShopHotShopClassifyCommonActionModel.load_empty_action_type:         case goodShopHotShopClassifyCommonActionModel.load_error_action_type:         case goodShopHotShopClassifyCommonActionModel.load_success_action_type:             return { ...state, hotShopsClassify: reducerGeneratorCommonActionModel(goodShopHotShopClassifyCommonActionModel, state.hotShopsClassify, action) };         //榜单详情         case goodShopRankingShopDetailCommonActionModel.load_loading_action_type:         case goodShopRankingShopDetailCommonActionModel.load_empty_action_type:         case goodShopRankingShopDetailCommonActionModel.load_error_action_type:         case goodShopRankingShopDetailCommonActionModel.load_success_action_type:             return { ...state, rankingDetails: reducerMergeGeneratorCommonActionModel(goodShopRankingShopDetailCommonActionModel, state.rankingDetails, action) }         //支持的城市列表         case goodShopCitysCommonActionModel.load_loading_action_type:         case goodShopCitysCommonActionModel.load_empty_action_type:         case goodShopCitysCommonActionModel.load_error_action_type:         case goodShopCitysCommonActionModel.load_success_action_type:             return { ...state, citys: reducerGeneratorCommonActionModel(goodShopCitysCommonActionModel,  

感觉这样去写，反而更累了，所以想问下 v 友门，这块要如何去设计和优化啊，再次感谢