/**
 * QUnit Tests for Cart Functions
 * Tests core cart functionality (add, remove, update, calculate)
 */

odoo.define('website_sale_aplicoop.test_cart_functions', function (require) {
    'use strict';

    var QUnit = window.QUnit;

    QUnit.module('website_sale_aplicoop', {
        beforeEach: function() {
            // Setup: Initialize groupOrderShop object
            window.groupOrderShop = {
                orderId: '1',
                cart: {},
                labels: {
                    'save_cart': 'Save Cart',
                    'reload_cart': 'Reload Cart',
                    'checkout': 'Checkout',
                    'confirm_order': 'Confirm Order',
                    'back_to_cart': 'Back to Cart'
                }
            };
            
            // Clear localStorage
            localStorage.clear();
        },
        afterEach: function() {
            // Cleanup
            localStorage.clear();
            delete window.groupOrderShop;
        }
    }, function() {

        QUnit.test('groupOrderShop object initializes correctly', function(assert) {
            assert.expect(3);
            
            assert.ok(window.groupOrderShop, 'groupOrderShop object exists');
            assert.equal(window.groupOrderShop.orderId, '1', 'orderId is set');
            assert.ok(typeof window.groupOrderShop.cart === 'object', 'cart is an object');
        });

        QUnit.test('cart starts empty', function(assert) {
            assert.expect(1);
            
            var cartKeys = Object.keys(window.groupOrderShop.cart);
            assert.equal(cartKeys.length, 0, 'cart has no items initially');
        });

        QUnit.test('can add item to cart', function(assert) {
            assert.expect(4);
            
            // Add a product to cart
            var productId = '123';
            var productData = {
                name: 'Test Product',
                price: 10.50,
                quantity: 2
            };
            
            window.groupOrderShop.cart[productId] = productData;
            
            assert.equal(Object.keys(window.groupOrderShop.cart).length, 1, 'cart has 1 item');
            assert.ok(window.groupOrderShop.cart[productId], 'product exists in cart');
            assert.equal(window.groupOrderShop.cart[productId].name, 'Test Product', 'product name is correct');
            assert.equal(window.groupOrderShop.cart[productId].quantity, 2, 'product quantity is correct');
        });

        QUnit.test('can remove item from cart', function(assert) {
            assert.expect(2);
            
            // Add then remove
            var productId = '123';
            window.groupOrderShop.cart[productId] = {
                name: 'Test Product',
                price: 10.50,
                quantity: 2
            };
            
            assert.equal(Object.keys(window.groupOrderShop.cart).length, 1, 'cart has 1 item after add');
            
            delete window.groupOrderShop.cart[productId];
            
            assert.equal(Object.keys(window.groupOrderShop.cart).length, 0, 'cart is empty after remove');
        });

        QUnit.test('can update item quantity', function(assert) {
            assert.expect(3);
            
            var productId = '123';
            window.groupOrderShop.cart[productId] = {
                name: 'Test Product',
                price: 10.50,
                quantity: 2
            };
            
            assert.equal(window.groupOrderShop.cart[productId].quantity, 2, 'initial quantity is 2');
            
            // Update quantity
            window.groupOrderShop.cart[productId].quantity = 5;
            
            assert.equal(window.groupOrderShop.cart[productId].quantity, 5, 'quantity updated to 5');
            assert.equal(Object.keys(window.groupOrderShop.cart).length, 1, 'still only 1 item in cart');
        });

        QUnit.test('cart total calculates correctly', function(assert) {
            assert.expect(1);
            
            // Add multiple products
            window.groupOrderShop.cart['123'] = {
                name: 'Product 1',
                price: 10.00,
                quantity: 2
            };
            
            window.groupOrderShop.cart['456'] = {
                name: 'Product 2',
                price: 5.50,
                quantity: 3
            };
            
            // Calculate total manually
            var total = 0;
            Object.keys(window.groupOrderShop.cart).forEach(function(productId) {
                var item = window.groupOrderShop.cart[productId];
                total += item.price * item.quantity;
            });
            
            // Expected: (10.00 * 2) + (5.50 * 3) = 20.00 + 16.50 = 36.50
            assert.equal(total.toFixed(2), '36.50', 'cart total is correct');
        });

        QUnit.test('localStorage saves cart correctly', function(assert) {
            assert.expect(2);
            
            var cartKey = 'eskaera_1_cart';
            var testCart = {
                '123': {
                    name: 'Test Product',
                    price: 10.50,
                    quantity: 2
                }
            };
            
            // Save to localStorage
            localStorage.setItem(cartKey, JSON.stringify(testCart));
            
            // Retrieve and verify
            var savedCart = JSON.parse(localStorage.getItem(cartKey));
            
            assert.ok(savedCart, 'cart was saved to localStorage');
            assert.equal(savedCart['123'].name, 'Test Product', 'cart data is correct');
        });

        QUnit.test('labels object is initialized', function(assert) {
            assert.expect(5);
            
            assert.ok(window.groupOrderShop.labels, 'labels object exists');
            assert.equal(window.groupOrderShop.labels['save_cart'], 'Save Cart', 'save_cart label exists');
            assert.equal(window.groupOrderShop.labels['reload_cart'], 'Reload Cart', 'reload_cart label exists');
            assert.equal(window.groupOrderShop.labels['checkout'], 'Checkout', 'checkout label exists');
            assert.equal(window.groupOrderShop.labels['confirm_order'], 'Confirm Order', 'confirm_order label exists');
        });

        QUnit.test('cart handles decimal quantities correctly', function(assert) {
            assert.expect(2);
            
            window.groupOrderShop.cart['123'] = {
                name: 'Weight Product',
                price: 8.99,
                quantity: 1.5
            };
            
            var item = window.groupOrderShop.cart['123'];
            var subtotal = item.price * item.quantity;
            
            assert.equal(item.quantity, 1.5, 'decimal quantity stored correctly');
            assert.equal(subtotal.toFixed(2), '13.49', 'subtotal with decimal quantity is correct');
        });

        QUnit.test('cart handles zero quantity', function(assert) {
            assert.expect(1);
            
            window.groupOrderShop.cart['123'] = {
                name: 'Test Product',
                price: 10.00,
                quantity: 0
            };
            
            var item = window.groupOrderShop.cart['123'];
            var subtotal = item.price * item.quantity;
            
            assert.equal(subtotal, 0, 'zero quantity results in zero subtotal');
        });

        QUnit.test('cart handles multiple items with same price', function(assert) {
            assert.expect(2);
            
            window.groupOrderShop.cart['123'] = {
                name: 'Product A',
                price: 10.00,
                quantity: 2
            };
            
            window.groupOrderShop.cart['456'] = {
                name: 'Product B',
                price: 10.00,
                quantity: 3
            };
            
            var total = 0;
            Object.keys(window.groupOrderShop.cart).forEach(function(productId) {
                var item = window.groupOrderShop.cart[productId];
                total += item.price * item.quantity;
            });
            
            assert.equal(Object.keys(window.groupOrderShop.cart).length, 2, 'cart has 2 items');
            assert.equal(total.toFixed(2), '50.00', 'total is correct with same prices');
        });
    });

    return {};
});