data.js

var order = [
    ['ITEM000001', 'ITEM000001', 'ITEM000001', 'ITEM000001', 'ITEM000001', 'ITEM000003-6', 'ITEM000005', 'ITEM000005', 'ITEM000005', 'ITEM000006-2'],
    ['ITEM000001', 'ITEM000001','ITEM000003', 'ITEM000005', 'ITEM000005', 'ITEM000005', 'ITEM000006-2'],
    ['ITEM000001', 'ITEM000001', 'ITEM000003-2', 'ITEM000005', 'ITEM000005', 'ITEM000005', 'ITEM000006-5'],
    ['ITEM000001', 'ITEM000001', 'ITEM000003-2', 'ITEM000005', 'ITEM000005', 'ITEM000005', 'ITEM000006']
];
var items = [{
    barcode: 'ITEM000001',
    name: '可口可乐',
    unit: '瓶',
    category: '食品',
    subCategory: '碳酸饮料',
    price: 3.00
}, {
    barcode: 'ITEM000002',
    name: '雪碧',
    unit: '瓶',
    category: '食品',
    subCategory: '碳酸饮料',
    price: 3.00
}, {
    barcode: 'ITEM000003',
    name: '羽毛球',
    unit: '个',
    category: '体育用品',
    subCategory: '球类',
    price: 1.00
}, {
    barcode: 'ITEM000004',
    name: '苹果',
    unit: '斤',
    category: '食品',
    subCategory: '水果',
    price: 5.50
}, {
    barcode: 'ITEM000005',
    name: '香梨',
    unit: '斤',
    category: '食品',
    subCategory: '水果',
    price: 7.00
}, {
    barcode: 'ITEM000006',
    name: '篮球',
    unit: '个',
    category: '体育用品',
    subCategory: '球类',
    price: 98.00
}];


function getOrder(idx) {
    var idx = idx || 0;
    return order[idx];
}

function getItems() {
    return items;
}

function getPolicy(policy) {
    var policy = policy || 'BUY_THREE_GET_ONE_FREE';
    var policies = {
        'SINGLE_ITEM_BUY_HUNDRED_DISCOUNT_TEN': [{
            type: 'SINGLE_ITEM_BUY_HUNDRED_DISCOUNT_TEN',
            barcodes: ['ITEM000006', 'ITEM000001']
        }],
        'BUY_THREE_GET_ONE_FREE': [{
            type: 'BUY_THREE_GET_ONE_FREE',
            barcodes: ['ITEM000003', 'ITEM000001']
        }]
    };
    return policies[policy];
}

module.exports.getOrder = getOrder;
module.exports.getItems = getItems;
module.exports.getPolicy = getPolicy;