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+"use client";
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+
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+import { useState, useMemo } from "react";
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+import clsx from "clsx";
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+import {
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+ ProductOption,
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+ ResolvedVariant
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+} from "@/components/catalog/type";
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+import { ProductAddToCart } from "@/app/(public)/product/_components/ProductAddToCart";
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+import { useCustomToast } from "@utils/hooks/useToast";
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+import { useAddProduct } from "@utils/hooks/useAddToCart";
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+import { redirect, RedirectType } from 'next/navigation'
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+import {
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+ isValueAvailable,
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+ isOptionValueAvailable,
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+ getFirstAvailable,
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+ getAvailableVariants,
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+ isCombinationAvailable,
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+ formatFlexibleVariants,
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+ findNearestAvailableVariant
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+} from "@/utils/variantTools";
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+import { Price } from "@components/theme/ui/Price";
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+
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+
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+export function ProductInformation({
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+ name,
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+ productId,
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+ productOptions,
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+ flexibleVariants,
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+ isSaleable
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+}: {
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+ name: string;
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+ productId: number;
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+ productOptions: ProductOption[];
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+ flexibleVariants: ResolvedVariant[];
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+ isSaleable: string | undefined;
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+}) {
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+ const { isCartLoading, onAddToCart } = useAddProduct();
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+ const { showToast } = useCustomToast();
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+
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+ // 记录当前哪个选项组刚刚被点击(用于实现“点击组内全部可点”)
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+ const [lastClickedOptionId, setLastClickedOptionId] = useState<number>(productOptions[0]?.id );
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+
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+ const [productQty, setProductQty] = useState(1);
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+
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+ // 获取所有可用变体(quantity > 0)
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+ const availableVariants = useMemo(() => {
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+ return getAvailableVariants(flexibleVariants);
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+ }, [flexibleVariants]);
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+
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+ // 当前选中的选项值映射:option_id -> value_id
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+ const [selected, setSelected] = useState<Record<number, number>>(() => {
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+ let res: Record<number, number> = {};
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+
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+ const defaultSelected = getFirstAvailable(productOptions, flexibleVariants);;
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+ if (defaultSelected) {
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+ res = defaultSelected;
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+ } else {
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+ // 极端情况:没有任何可用组合,默认全选每组第一个(但仍需标记为不可用,由禁用逻辑处理)
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+ productOptions.forEach((opt) => {
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+ res[opt.id] = opt.values[0]?.id;
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+ });
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+ }
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+ console.log('set default selected');
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+ return res;
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+ });
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+
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+ // 计算每个选项值的禁用状态
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+ const disabledMap = useMemo(() => {
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+ const map: Record<number, boolean> = {};
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+ if (Object.keys(selected).length === 0) return map; // 没有选中的项
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+
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+ productOptions.forEach((option) => {
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+ option.values.forEach((value) => {
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+ // 规则:如果该选项组是最近点击的组,校验组中的值是否存在可用变体
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+ if (option.id === lastClickedOptionId) {
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+ // map[value.id] = false;
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+ map[value.id] = !isValueAvailable(value.id,availableVariants);
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+ } else {
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+ // 校验其他组的选项值是否可用
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+ map[value.id] = !isOptionValueAvailable(
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+ option.id,
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+ value.id,
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+ selected,
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+ productOptions,
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+ availableVariants
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+ );
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+ }
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+ });
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+ });
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+ return map;
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+ }, [selected, lastClickedOptionId, productOptions, availableVariants]);
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+
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+ // 处理选项点击
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+ const handleOptionClick = (optionId: number, valueId: number) => {
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+ // 更新前需要判断当前选中的组合是否可以购买,如果可以购买正常更新;如果不能购买查找可以购买的组合然后更新
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+ let newSelected: Record<number, number> = {...selected,[optionId]: valueId};
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+ let selectedValueIds = Object.values(newSelected);
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+ if(!isCombinationAvailable(selectedValueIds, availableVariants)) {
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+ newSelected = findNearestAvailableVariant(optionId,valueId,{...newSelected},productOptions,availableVariants);
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+ }
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+ setSelected({ ...newSelected });
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+ // 记录当前点击的选项组
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+ setLastClickedOptionId(optionId);
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+ };
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+
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+ // 判断当前选中的组合是否可购买(用于控制购买按钮等)
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+ const isCurrentSelectionAvailable = useMemo(() => {
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+ let res = true;
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+ if(isSaleable !== '1') {
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+ res = false;
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+ } else {
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+ const selectedIds = Object.values(selected);
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+ if (selectedIds.length !== productOptions.length) {
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+ res = false
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+ } else {
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+ res = isCombinationAvailable(selectedIds, availableVariants);
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+ }
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+ }
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+ return res;
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+ }, [selected, productOptions, flexibleVariants, isSaleable]);
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+
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+ // 获取当前选中变体和价格等信息
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+ // useEffect和useMemo的执行时机不同,useMemo早于useEffect执行,如果使用useEffect初始化selected,则需要对selected做判断,当为空对象时返回占位对象
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+ const currentVariantInfo: {variant:ResolvedVariant | null; totalLinePrice: number; totalNowPrice: number; save: number;} = useMemo(() => {
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+ const selectedIds = Object.values(selected);
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+ let totalLinePrice = 0;
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+ let totalNowPrice = 0;
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+ let save = 0;
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+ let variant = flexibleVariants.find((v) => {
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+ const vIds = v.optionValues.map((ov) => ov.id);
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+ return selectedIds.length === vIds.length && selectedIds.every((id) => vIds.includes(id));
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+ });
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+ if (selectedIds.length === 0 || variant === undefined) {
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+ // 尚未初始化,返回一个安全占位对象
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+ return { variant: null, totalLinePrice: 0, totalNowPrice: 0, save: 0 };
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+ }
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+
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+ if(variant.priceIndices && variant.priceIndices.length > 0) {
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+ totalLinePrice = Number(variant.priceIndices[0].regular_min_price) * productQty;
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+ totalNowPrice = Number(variant.priceIndices[0].min_price) * productQty;
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+ }
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+ if(totalLinePrice !== totalNowPrice) {
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+ save = -(totalLinePrice - totalNowPrice);
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+ }
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+
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+ return {
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+ variant,
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+ totalLinePrice: totalLinePrice,
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+ totalNowPrice: totalNowPrice,
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+ save: save
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+ };
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+ }, [selected, flexibleVariants, productQty]);
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+
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+
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+ let classNameOptionValueBtn = "text-ly-14 leading-ly-24 border border-solid rounded-lg pt-1.5 pb-1.5 pl-3 pr-3 bg-white";
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+
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+
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+ let handlerProductQty = (action: string) => {
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+ if (action === "increase") {
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+ setProductQty(productQty + 1);
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+ } else if (action === "decrease" && productQty > 1) {
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+ setProductQty(productQty - 1);
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+ }
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+ }
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+
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+ async function addProductToCart(action:string = 'addtocart') {
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+
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+ let params = {
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+ productId: String(productId),
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+ quantity: productQty,
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+ variantId: currentVariantInfo.variant?._id,
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+ };
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+ let res = await onAddToCart(params);
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+ console.log('onAddToCart result --- ', res);
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+ if(action === 'buynow') {
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+ if(res) {
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+ const responseData = res.data?.createAddProductInCart?.addProductInCart;
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+ if(responseData && responseData.success) {
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+ redirect('/checkout?step=address', RedirectType.push);
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+ }
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+ }
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+ }
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+ }
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+
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+ let addToCartHandler = async () => {
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+
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+ if(!isCurrentSelectionAvailable) {
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+ showToast("The selected options are not available!", "warning");
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+ return;
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+ }
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+
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+ if(currentVariantInfo.variant && !isCartLoading) {
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+ addProductToCart();
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+ }
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+ };
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+
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+ let buyNowHandler = () => {
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+ if(!isCurrentSelectionAvailable) {
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+ showToast("The selected options are not available!", "warning");
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+ return;
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+ }
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+ if(currentVariantInfo.variant && !isCartLoading) {
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+ addProductToCart('buynow');
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+ }
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+ };
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+
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+
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+ return (<>
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+ <div className="box-border w-full pr-4 pl-4">
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+ <h3 className="text-ly-12 mt-4 leading-ly-22">{name} {isSaleable}</h3>
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+
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+ <div className="flex items-center mt-2">
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+ <Price
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+ className="text-ly-16 leading-ly-24 font-bold"
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+ amount={String(currentVariantInfo.totalNowPrice)}
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+ currencyCode="USD"
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+ />
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+ {
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+ currentVariantInfo.totalLinePrice !== currentVariantInfo.totalNowPrice && (
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+ <>
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+ <Price
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+ className="text-ly-12 leading-ly-20 text-ly-gray line-through ml-1"
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+ amount={String(currentVariantInfo.totalLinePrice)}
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+ currencyCode="USD"
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+ /><Price
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+ className="text-ly-12 leading-ly-20 text-ly-gray line-through ml-1"
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+ amount={String(currentVariantInfo.totalLinePrice)}
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+ currencyCode="USD"
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+ />
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+ <Price
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+ className="text-ly-12 leading-ly-16 bg-ly-gold pr-1.5 pl-1.5 ml-3"
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+ amount={String(currentVariantInfo.save)}
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+ currencyCode="USD"
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+ />
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+ </>
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+ )
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+ }
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+
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+ </div>
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+
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+ </div>
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+
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+ <div className="box-border w-full pr-4 pl-4 mt-6">
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+ {productOptions.map((option) => (
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+ <div key={option.id}>
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+ <div className="text-ly-12 font-medium">{option.label}</div>
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+ <div className="flex flex-wrap gap-3 mt-3">
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+ {option.values.map((value) => {
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+ const isSelected = selected[option.id] === value.id;
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+ const isDisabled = disabledMap[value.id] || false;
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+ return (
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+ <button
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+ key={value.id}
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+ type="button"
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+ onClick={() => !isDisabled && handleOptionClick(option.id, value.id)}
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+ className={clsx(classNameOptionValueBtn, {
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+ 'border-ly-green text-ly-green': isSelected,
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+ 'border-black text-black': !isSelected,
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+ 'opacity-40 cursor-not-allowed strokeline-bg-disabled': isDisabled
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+ })}
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+
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+ disabled={isDisabled}
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+ >
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+ {value.label}
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+ </button>
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+ );
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+ })}
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+ </div>
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+ </div>
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+ ))}
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+
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+ <div className="text-ly-12 font-medium mt-4">Quantity*</div>
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+ <div className="w-full flex mt-3">
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+ <div className="flex border border-solid rounded-lg">
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+ <button onClick={() => handlerProductQty('decrease')} type="button" className="flex-initial w-7.5 h-9 flex items-center justify-center">
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+ <svg className="w-4 h-4" xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 16 16" fill="none">
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+ <path stroke="rgba(0, 0, 0, 1)" strokeWidth="1.5" strokeLinejoin="round" d="M3.33325 8L12.6666 8" />
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+ </svg>
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+ </button>
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+ <input type="text" className="w-15 h-9 leading-ly-36 text-center" value={productQty} readOnly />
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+ <button onClick={() => handlerProductQty('increase')} type="button" className="flex-initial w-7.5 h-9 flex items-center justify-center">
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+ <svg className="w-4 h-4" xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 16 16" fill="none">
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+ <path stroke="rgba(0, 0, 0, 1)" strokeWidth="1.5" strokeLinejoin="round" d="M8.02026 3.3335L8.00806 12.6668" />
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+ <path stroke="rgba(0, 0, 0, 1)" strokeWidth="1.5" strokeLinejoin="round" d="M3.33325 8L12.6666 8" />
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+ </svg>
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+ </button>
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+ </div>
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+ </div>
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+ </div>
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+ <ProductAddToCart
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+ isAvailable={isCurrentSelectionAvailable}
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+ isLoading={isCartLoading}
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+ onAddToCart={addToCartHandler}
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+ onBuyNow={buyNowHandler}
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+ />
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+ </>);
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+}
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