mutations.js
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import * as Types from './types';
import { find, set } from 'lodash';
import { defaultProduct, defaultSelectedSize } from './index';
function ensureProduct(state, productId) {
if (state.products[productId] === undefined) {
state.products = {...state.products, [productId]: defaultProduct()};
}
}
function ensureSelectedProduct(state, productId) {
if (!state.selectedProductInfo || state.selectedProductInfo.productId !== productId) {
ensureProduct(state, productId);
state.selectedProductInfo = {
productId,
product: state.products[productId],
sizeId: null,
storageId: null,
size: {},
};
}
}
export default {
[Types.ENSURE_PRODUCT_DETAIL](state, { productId }) {
ensureProduct(state, productId);
},
[Types.UPDATE_PRODUCT_DETAIL](state, payload) {
state.products = {...state.products, [payload.product_id]: payload};
ensureSelectedProduct(state, payload.product_id);
},
[Types.UPDATE_BRAND_PRODUCT_TOP_LIST](state, { productId, topList }) {
state.topLists = {...state.topLists, [productId]: topList};
},
[Types.UPDATE_PRODUCT_COUPON_LIST](state, { productId, couponList }) {
state.couponLists = {...state.couponLists, [productId]: couponList};
},
[Types.UPDATE_PRODUCT_COUPON_TOP_LIST](state, { productId, couponTopList }) {
state.couponTopLists = {...state.couponTopLists, [productId]: couponTopList};
},
[Types.UPDATE_PRODUCT_FAV](state, { productId, isFav }) {
state.fav = {...state.fav, [productId]: isFav};
},
[Types.UPDATE_SELECTED_PRODUCT_SIZE](state, { productId, sizeId, storageId }) {
ensureSelectedProduct(state, productId);
const sizeList = state.selectedProductInfo.product.goods_list[0].size_list;
let sizeInfo;
if (storageId) {
sizeInfo = find(sizeList, (size) => size.storage_id === storageId);
} else {
sizeInfo = find(sizeList, (size) => size.size_id === sizeId);
}
if (sizeInfo) {
state.selectedProductInfo.sizeId = sizeInfo.size_id;
state.selectedProductInfo.storageId = sizeInfo.storage_id;
}
state.selectedProductInfo.size = sizeInfo;
},
[Types.RESET_SELECTED_PRODUCT_SIZE](state) {
Object.assign(state.selectedProductInfo, defaultSelectedSize());
},
[Types.SETUP_INITIAL_PRODUCT_INFO](state, payload) {
const { id: productId } = payload;
const productInfo = state.products[productId];
// 规格化数据
[['id', 'product_id'], ['price', 'least_price'], ['product_name'], ['default_images', 'goods_list[0].image_list[0].image_url']].forEach((keyMap) => {
const val = payload[keyMap[0]];
if (val !== null) {
set(productInfo, keyMap[1] || keyMap[0], val);
if (keyMap[0] === 'default_images') {
set(productInfo, 'goods_list[0].image_list[0].initial', true); // 区分初始化数据，方便使用缓存
}
}
});
}
};