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import { create } from 'zustand';
import { CartItem, CartProps } from '~/types/cart';
import { getUserCart } from '~/services/cart';
import {
syncCartWithCookie,
getCartDataFromCookie,
getSelectedItemsFromCookie,
updateSelectedItemInCookie,
setAllSelectedInCookie,
removeCartItemsFromCookie,
forceResetAllSelectedItems,
} from '~/utils/cart';
type State = {
cart: CartProps | null;
isLoadCart: boolean;
summary: {
subtotal: number;
discount: number;
total: number;
tax: number;
grandTotal: number;
};
};
type Action = {
loadCart: (userId: number) => Promise<void>;
updateCartItem: (updateCart: CartProps) => void;
syncCartWithCookieAndUpdate: (cart: CartProps) => { needsUpdate: boolean };
forceResetSelection: () => void;
};
export const useCartStore = create<State & Action>((set, get) => ({
cart: null,
isLoadCart: false,
summary: {
subtotal: 0,
discount: 0,
total: 0,
tax: 0,
grandTotal: 0,
},
loadCart: async (userId) => {
if (get().isLoadCart === true) return;
set({ isLoadCart: true });
try {
// Fetch cart from API
const cart: CartProps = (await getUserCart(userId)) as CartProps;
// Sync with cookie and get updated data if needed
const { needsUpdate } = get().syncCartWithCookieAndUpdate(cart);
// If no update needed from cookie, just set the cart directly
if (!needsUpdate) {
set({ cart });
}
// Update summary with current cart
const summary = computeSummary(get().cart!);
set({ summary });
} catch (error) {
console.error('Failed to load cart from API:', error);
// Fallback to cookie if API fails
try {
const cartData = getCartDataFromCookie();
if (Object.keys(cartData).length > 0) {
// Transform cart data from cookie to expected format
const products = Object.values(cartData).map((item) => ({
cart_id: item.cart_id,
id: item.id,
cart_type: item.cart_type,
product_id: item.product?.id,
product_name: item.product?.name,
program_line_id: item.program_line?.id,
program_line_name: item.program_line?.name,
quantity: item.quantity,
selected: item.selected,
price: item.price,
package_price: item.package_price,
source: item.source,
}));
const fallbackCart: CartProps = {
product_total: products.length,
products,
};
set({ cart: fallbackCart });
const summary = computeSummary(fallbackCart);
set({ summary });
}
} catch (cookieError) {
console.error('Failed to fallback to cookie:', cookieError);
}
} finally {
set({ isLoadCart: false });
}
},
updateCartItem: (updatedCart) => {
const cart = get().cart;
if (!cart) return;
set({ cart: updatedCart });
// Sync updated cart with cookie
syncCartWithCookie(updatedCart);
const summary = computeSummary(updatedCart);
set({ summary });
},
syncCartWithCookieAndUpdate: (cart) => {
if (!cart) return { needsUpdate: false };
// Sync cart with cookie
const result = syncCartWithCookie(cart);
// If we need to update the cart based on cookie data
if (result.needsUpdate && cart.products) {
// Create updated cart with selections from cookie
const selectedItems = getSelectedItemsFromCookie();
const updatedCart = {
...cart,
products: cart.products.map((item) => ({
...item,
selected:
selectedItems[item.id] !== undefined
? selectedItems[item.id]
: item.selected,
})),
};
// Update the store
set({ cart: updatedCart });
}
return result;
},
forceResetSelection: () => {
const { cart } = get();
if (!cart) return;
// Reset all selections in cookie
forceResetAllSelectedItems();
// Update the cart in state
const updatedCart = {
...cart,
products: cart.products.map((item) => ({
...item,
selected: false,
})),
};
set({ cart: updatedCart });
// Update summary
const summary = computeSummary(updatedCart);
set({ summary });
},
}));
const computeSummary = (cart: CartProps) => {
let subtotal = 0;
let discount = 0;
const PPN: number = process.env.NEXT_PUBLIC_PPN
? parseFloat(process.env.NEXT_PUBLIC_PPN)
: 0;
for (const item of cart?.products) {
if (!item.selected) continue;
let price = 0;
if (item.cart_type === 'promotion')
price = (item?.package_price || 0) * item.quantity;
else if (item.cart_type === 'product')
price = item.price.price * item.quantity;
subtotal += price;
discount += price - item.price.price_discount * item.quantity;
}
let total = subtotal - discount;
let grandTotal = total * PPN;
let tax = grandTotal - total;
// let grandTotal = total + tax;
return { subtotal, discount, total, grandTotal, tax };
};
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