nshop-front-pc/src/actions/addProductToCartAction.ts

"use server";

import {cookies} from "next/headers";
import { GUEST_CART_TOKEN } from "@/utils/constants";
import { CREATE_ADD_PRODUCT_IN_CART } from "@/graphql";
import { auth } from "@/utils/auth/auth-helper";
import { serverGraphqlFetch } from "@utils/bagisto";
import {createGuestCartToken,setGuestCookie} from "@/server-service/guestCartTokenService";
import { AddToCartData,AddToCartVariables } from "@/types/cart/type";


export async function addProductToCartAction(param:AddToCartVariables) {

    const authSession = await auth();
    const accessToken = authSession?.user?.accessToken;

    const cookieStore = await cookies();
    const guestCartToken = cookieStore.get(GUEST_CART_TOKEN)?.value;


    if(!accessToken && !guestCartToken) {
        const createRes = await createGuestCartToken();
        if(!createRes.success) {
            return {
                success: false,
                msg: createRes.msg,
                cartData: null
            }
        }
    }
    try{
        const response = await serverGraphqlFetch<AddToCartData,AddToCartVariables>({
            query: CREATE_ADD_PRODUCT_IN_CART,
            variables: param,
            cache: "no-store",
        });
        if(!response.error) {
            const responseData = response.data?.createAddProductInCart?.addProductInCart;
            /** 兜底代码 start*/
            // 游客加购，然后清空购物车，然后刷新页面，然后再加购，然后再刷新页面，购物车会失效，所以添加兜底代码
            // 如果之前的cartToken有效，responseCartId和responseCartToken的值是一样的都是cart id; 否则两者不相等
            if(responseData) {
                const responseCartId = responseData.id;
                const responseCartToken = responseData.cartToken;
                if(!accessToken && responseCartId !== responseCartToken) {
                    await setGuestCookie({
                        guestCartId: responseCartId,
                        guestToken: responseCartToken,
                        isGuest: true
                    });
                }
            }
            /** 兜底代码 end*/

            return {
                success: true,
                msg: '',
                cartData: response.data
            }

        } else {
            return {
                success: false,
                msg: response.error.message,
                cartData: null
            }
        }
    } catch(error) {
        return {
            success: false,
            msg: error instanceof Error ? error.message : 'Add product to cart failed!',
            cartData: null
        }
    }
};