Replace entire repo content with shahikitchen-v1-prodcution.zip (v1.1 production)

domain/cart/cart-domain.ts

@@ -0,0 +1,56 @@
+import {
+  addOrderLine,
+  calculateOrderItemCount,
+  calculateOrderTotal,
+  updateOrderLineQuantity,
+} from '../shared/order-line';
+import type { CartAction, CartState } from './entities';
+
+/** Pure cart state machine — no React, no localStorage. */
+export function cartReducer(state: CartState, action: CartAction): CartState {
+  switch (action.type) {
+    case 'ADD_ITEM':
+      return { ...state, items: addOrderLine(state.items, action.payload) };
+
+    case 'REMOVE_ITEM':
+      return {
+        ...state,
+        items: state.items.filter((item) => item.id !== action.payload),
+      };
+
+    case 'UPDATE_QUANTITY':
+      return {
+        ...state,
+        items: updateOrderLineQuantity(
+          state.items,
+          action.payload.id,
+          action.payload.quantity
+        ),
+      };
+
+    case 'CLEAR_CART':
+      return { ...state, items: [] };
+
+    case 'RESTORE_ITEMS':
+      return { ...state, items: action.payload };
+
+    case 'TOGGLE_CART':
+      return { ...state, isOpen: !state.isOpen };
+
+    case 'OPEN_CART':
+      return { ...state, isOpen: true };
+
+    case 'CLOSE_CART':
+      return { ...state, isOpen: false };
+
+    default:
+      return state;
+  }
+}
+
+export function getCartTotals(items: CartState['items']) {
+  return {
+    totalItems: calculateOrderItemCount(items),
+    totalPrice: calculateOrderTotal(items),
+  };
+}