71 lines
1.2 KiB
TypeScript
71 lines
1.2 KiB
TypeScript
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import { defineStore } from "pinia";
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import { computed, ref, watch } from "vue";
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import { storage } from "/@/cool";
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import { uuid } from "/@/cool/utils";
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// 购物车
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export const useShoppingCart = defineStore("shopping-cart", () => {
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const list = ref<OrderGoods[]>(storage.get("shopping-cart.list") || []);
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// 购物车数量
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const num = computed(() => {
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return list.value.length;
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});
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// 数量+1
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function add(data: OrderGoods) {
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const d = list.value.find((e) => e.spec?.id == data.spec?.id);
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if (d) {
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// 判定库存
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d.count += data.count || 1;
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if (d.count > data.spec.stock!) {
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d.count = data.spec.stock || 1;
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}
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} else {
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list.value.push({
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...data,
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id: uuid(),
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});
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}
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}
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// 删除规格
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function del(id: string) {
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const i = list.value.findIndex((e) => e.id == id);
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if (i >= 0) {
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list.value.splice(i, 1);
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}
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}
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// 删除规格根据 specId
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function delBySpecId(id: number) {
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const i = list.value.findIndex((e) => e.spec?.id == id);
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if (i >= 0) {
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list.value.splice(i, 1);
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}
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}
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// 监听更新
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watch(
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list,
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(val) => {
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storage.set("shopping-cart.list", val);
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},
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{
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deep: true,
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},
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);
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return {
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list,
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num,
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add,
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del,
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delBySpecId,
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};
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});
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