import { listCategory } from '@/api/wms/category';
import { listProductWithBom } from '@/api/wms/product';
import { listRawMaterialWithBom } from '@/api/wms/rawMaterial';
import { listBomItem } from '@/api/wms/bomItem';

// 目前存在一个问题，当新增或删除，修改分类、产品、物料时，需要刷新整个页面，才能看到最新的数据
// 需要优化，当新增或删除，修改分类、产品、物料时，只刷新相关的数据，而不是整个页面，修改和删除可以解决，新增由于没有返回id，所以需要重新获取整个列表

const state = {
  categoryList: [],
  productMap: {},
  rawMaterialMap: {},
  productList: [],
  rawMaterialList: [],
  bomMap: {}
};

const mutations = {
  SET_CATEGORY_LIST(state, list) {
    state.categoryList = list;
  },

  SET_PRODUCT_MAP(state, map) {
    state.productMap = map;
  },
  SET_RAW_MATERIAL_MAP(state, map) {
    state.rawMaterialMap = map;
  },
  SET_PRODUCT_LIST(state, list) {
    state.productList = list;
  },
  SET_RAW_MATERIAL_LIST(state, list) {
    state.rawMaterialList = list;
  },
  SET_BOM_MAP(state, map) {
    state.bomMap = map;
  }
};

const actions = {
  getCategoryList({ state, commit }) {
    if (state.categoryList.length > 0) {
      return Promise.resolve(state.categoryList);
    }
    return listCategory({ pageNum: 1, pageSize: 10000 }).then(res => {
      commit('SET_CATEGORY_LIST', res.rows || []);
      return res.rows || [];
    });
  },
  getProductMap({ state, commit }) {
    if (Object.keys(state.productMap).length > 0) {
      return Promise.resolve(state.productMap);
    }
    return listProductWithBom({ pageNum: 1, pageSize: 10000 }).then(res => {
      const map = {};
      res.rows.forEach(item => {
        map[item.productId] = item;
      });
      commit('SET_PRODUCT_MAP', map);
      commit('SET_PRODUCT_LIST', res.rows || []);
      return map;
    });
  },
  getRawMaterialMap({ state, commit }) {
    if (Object.keys(state.rawMaterialMap).length > 0) {
      return Promise.resolve(state.rawMaterialMap);
    }
    return listRawMaterialWithBom({ pageNum: 1, pageSize: 10000 }).then(res => {
      const map = {};
      res.rows.forEach(item => {
        map[item.rawMaterialId] = item;
      });
      commit('SET_RAW_MATERIAL_MAP', map);
      commit('SET_RAW_MATERIAL_LIST', res.rows || []);
      return map;
    });
  },
  getBomMap({ state, commit }) {
    if (Object.keys(state.bomMap).length > 0) {
      return Promise.resolve(state.bomMap);
    }
    return listBomItem({ pageNum: 1, pageSize: 10000 }).then(res => {
      console.log('bomItem', res)
      const map = {};
      res.rows.forEach(item => {
        if (!map[item.bomId]) {
          map[item.bomId] = [];
        }
        map[item.bomId].push(item);
      });
      commit('SET_BOM_MAP', map);
      return map;
    })
  }
};

export function findItemWithBom(itemType, itemId) {
  if (!itemType || !itemId) {
    return null;
  }
  let map = {}
  if (itemType === 'product') {
    map = state.productMap;
  } else if (itemType === 'raw_material') {
    map = state.rawMaterialMap;
  } else {
    return null;
  }
  const item = map[itemId];
  if (!item) {
    return null;
  }
  const bomId = item.bomId
  if (!bomId) {
    return null;
  }
  const bomItems = state.bomMap[bomId];
  
  return { 
    ...item, 
    boms: bomItems || [],
    itemName: itemType === 'product' ? item.productName : item.rawMaterialName,
    itemType,
  };
}

export default {
  namespaced: true,
  state,
  mutations,
  actions,
};