root
48 lines
1.3 KiB
TypeScript
48 lines
1.3 KiB
TypeScript
import type { WishlistAction, WishlistItem, WishlistState } from './entities';
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export function wishlistReducer(state: WishlistState, action: WishlistAction): WishlistState {
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switch (action.type) {
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case 'TOGGLE_ITEM': {
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const exists = state.items.some((item) => item.id === action.payload.id);
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if (exists) {
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return {
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...state,
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items: state.items.filter((item) => item.id !== action.payload.id),
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};
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}
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return { ...state, items: [...state.items, action.payload] };
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}
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case 'REMOVE_ITEM':
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return {
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...state,
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items: state.items.filter((item) => item.id !== action.payload),
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};
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case 'CLEAR_WISHLIST':
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return { ...state, items: [] };
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case 'RESTORE_ITEMS':
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return { ...state, items: action.payload };
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case 'TOGGLE_DRAWER':
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return { ...state, isOpen: !state.isOpen };
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case 'OPEN_DRAWER':
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return { ...state, isOpen: true };
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case 'CLOSE_DRAWER':
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return { ...state, isOpen: false };
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default:
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return state;
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}
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}
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export function isInWishlist(items: WishlistItem[], id: string): boolean {
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return items.some((item) => item.id === id);
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}
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export function getWishlistCount(items: WishlistItem[]): number {
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return items.length;
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} |