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import { create } from 'zustand';
import { CartItem, CartProps } from '~/types/cart';
import { getUserCart } from '~/services/cart';
import {
syncCartWithCookie,
getCartDataFromCookie,
getSelectedItemsFromCookie,
forceResetAllSelectedItems,
} from '~/utils/cart';
interface Summary {
subtotal: number;
discount: number;
total: number;
tax: number;
grandTotal: number;
}
interface SyncResult {
cartData?: Record<string, any>;
selectedItems?: Record<number, boolean>;
needsUpdate: boolean;
}
interface State {
cart: CartProps | null;
isLoadCart: boolean;
summary: Summary;
}
interface Action {
loadCart: (userId: number) => Promise<void>;
updateCartItem: (updateCart: CartProps) => void;
forceResetSelection: () => void;
clearCart: () => 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: number): Promise<void> => {
if (get().isLoadCart) return;
set({ isLoadCart: true });
try {
const cart: CartProps = (await getUserCart(userId)) as CartProps;
// Sync with cookie data
const syncResult = syncCartWithCookie(cart) as SyncResult;
if (syncResult?.needsUpdate && cart.products) {
const selectedItems = getSelectedItemsFromCookie() as Record<
number,
boolean
>;
const updatedCart: CartProps = {
...cart,
products: cart.products.map((item) => ({
...item,
selected:
selectedItems[item.id] !== undefined
? selectedItems[item.id]
: item.selected,
})),
};
set({ cart: updatedCart });
} else {
set({ cart });
}
// Update summary
const summary = computeSummary(get().cart!);
set({ summary });
} catch (error) {
console.error('Failed to load cart:', error);
// Fallback to cookie data
await handleFallbackFromCookie();
} finally {
set({ isLoadCart: false });
}
},
updateCartItem: (updatedCart: CartProps): void => {
set({ cart: updatedCart });
syncCartWithCookie(updatedCart);
const summary = computeSummary(updatedCart);
set({ summary });
},
forceResetSelection: (): void => {
const { cart } = get();
if (!cart) return;
forceResetAllSelectedItems();
const updatedCart: CartProps = {
...cart,
products: cart.products.map((item) => ({ ...item, selected: false })),
};
set({ cart: updatedCart });
const summary = computeSummary(updatedCart);
set({ summary });
},
clearCart: (): void => {
set({
cart: null,
summary: {
subtotal: 0,
discount: 0,
total: 0,
tax: 0,
grandTotal: 0,
},
});
},
}));
// Helper function for cookie fallback
const handleFallbackFromCookie = async (): Promise<void> => {
try {
const cartData = getCartDataFromCookie() as Record<string, any>;
if (Object.keys(cartData).length === 0) return;
const products: CartItem[] = Object.values(cartData).map(
transformCookieItemToProduct
);
const fallbackCart: CartProps = {
product_total: products.length,
products,
};
useCartStore.setState({ cart: fallbackCart });
const summary = computeSummary(fallbackCart);
useCartStore.setState({ summary });
} catch (error) {
console.error('Cookie fallback failed:', error);
}
};
// Helper function to transform cookie item to product format
const transformCookieItemToProduct = (item: any): CartItem => ({
image_program: item.image_program || '',
cart_id: item.cart_id,
quantity: item.quantity,
selected: item.selected,
can_buy: true,
cart_type: item.cart_type,
id: item.id,
name: item.product?.name || item.program_line?.name || '',
stock: 0,
is_in_bu: false,
on_hand_qty: 0,
available_quantity: 0,
weight: 0,
attributes: [],
parent: {
id: 0,
name: '',
image: '',
},
price: item.price || {
price: 0,
discount_percentage: 0,
price_discount: 0,
},
manufacture: {
id: 0,
name: '',
},
has_flashsale: false,
subtotal: 0,
code: item.code,
image: item.image,
package_price: item.package_price,
});
const computeSummary = (cart: CartProps): Summary => {
if (!cart?.products) {
return { subtotal: 0, discount: 0, total: 0, grandTotal: 0, tax: 0 };
}
const PPN = parseFloat(process.env.NEXT_PUBLIC_PPN || '1.11');
let subtotal = 0;
let discount = 0;
for (const item of cart.products) {
if (!item.selected) continue;
const price =
item.cart_type === 'promotion'
? (item?.package_price || 0) * item.quantity
: item.price.price * item.quantity;
subtotal += price;
discount += price - item.price.price_discount * item.quantity;
}
const total = subtotal - discount;
// PERBAIKAN:
const tax = total * (PPN - 1);
const grandTotal = total + tax;
return { subtotal, discount, total, grandTotal, tax };
};
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