latest update 27 jul 24

src/helpers/cartHelpers.js

@@ -0,0 +1,93 @@
+import { getLocalStorage, updateLocalStorage } from './localStorageHelpers';
+
+// Get quantity from localStorage based on cafeId and itemId
+export const getItemQtyFromCart = (cafeId, itemId) => {
+  const cart = JSON.parse(getLocalStorage('cart')) || [];
+  const cafeItem = cart.find(cafeItem => cafeItem.cafeId === cafeId);
+  if (cafeItem) {
+    const item = cafeItem.items.find(item => item.itemId === itemId);
+    return item ? item.qty : 0;
+  }
+  return 0;
+};
+
+export const getItemsByCafeId = (cafeId) => {
+  const cart = JSON.parse(getLocalStorage('cart')) || [];
+  const cafeItem = cart.find(cafeItem => cafeItem.cafeId === cafeId);
+  return cafeItem ? cafeItem.items : [];
+};
+
+// Update quantity in localStorage for a specific cafeId and itemId
+export const updateItemQtyInCart = (cafeId, itemId, qty) => {
+  let cart = JSON.parse(getLocalStorage('cart')) || [];
+  const cafeIndex = cart.findIndex(cafeItem => cafeItem.cafeId === cafeId);
+
+  if (cafeIndex > -1) {
+    const itemIndex = cart[cafeIndex].items.findIndex(item => item.itemId === itemId);
+    if (itemIndex > -1) {
+      if (qty > 0) {
+        cart[cafeIndex].items[itemIndex].qty = qty; // Update qty if item exists
+      } else {
+        cart[cafeIndex].items.splice(itemIndex, 1); // Remove item if qty is 0
+      }
+    } else if (qty > 0) {
+      cart[cafeIndex].items.push({ itemId, qty }); // Add new item
+    }
+  } else if (qty > 0) {
+    cart.push({ cafeId, items: [{ itemId, qty }] }); // Add new cafeId and item
+  }
+
+  updateLocalStorage('cart', JSON.stringify(cart));
+};
+
+// Remove item from localStorage based on cafeId and itemId
+export const removeItemFromCart = (cafeId, itemId) => {
+  let items = JSON.parse(getLocalStorage('cart')) || [];
+  const cafeIndex = items.findIndex(cafeItem => cafeItem.cafeId === cafeId);
+  if (cafeIndex > -1) {
+    items[cafeIndex].items = items[cafeIndex].items.filter(item => item.itemId !== itemId);
+    if (items[cafeIndex].items.length === 0) {
+      items.splice(cafeIndex, 1); // Remove cafeId if no items left
+    }
+
+    updateLocalStorage('cart', JSON.stringify(items));
+  }
+};
+
+// Function to calculate total items count for a specific cafeId from localStorage
+export const calculateTotals = (cafeId) => {
+  // Get cart items from localStorage
+  const cart = JSON.parse(getLocalStorage('cart')) || [];
+  const cafeCart = cart.find(cafe => cafe.cafeId === cafeId);
+
+  if (!cafeCart) {
+    return { totalCount: 0, totalPrice: 0 }; // Return 0 if no items for the specified cafeId
+  }
+
+  const totalCount = cafeCart.items.reduce((total, item) => {
+    return total + item.qty;
+  }, 0);
+
+  // Assuming each item has a `price` property
+  const totalPrice = cafeCart.items.reduce((total, item) => {
+    return total + (item.qty * item.price);
+  }, 0);
+
+  return { totalCount, totalPrice };
+};
+
+// Function to calculate total price for a specific cafeId from localStorage
+export const calculateTotalPrice = (cafeId) => {
+  // Get cart items from localStorage
+  const cart = JSON.parse(getLocalStorage('cart')) || [];
+  const cafeCart = cart.find(cafe => cafe.cafeId === cafeId);
+
+  const totalPrice = cafeCart.items.reduce((total, cafeItem) => {
+    if (cafeItem.cafeId === cafeId) {
+      return total + cafeItem.items.reduce((acc, item) => acc + (item.qty * item.price), 0);
+    }
+    return total;
+  }, 0);
+
+  return totalPrice;
+};