/**
 * 购物车模型，目前服务有多种类型，所以通过增加一个购物车对象来缓存用户所选的服务
 */
define(['base', '$', 'native', 'product'], function (base, $, native, product) {
    var Cart = function () {
        if (typeof Cart.instance === 'object') {
            return Cart.instance;
        }
        Cart.instance = this;
        this.storagePrefix = 'cart_';//存储前缀
        this.products = this.getCache('products', null, {
            1: {//洗澡-钟点工
                petID: '',
                productID: '',
                petName: '',
                petWeight: '',
                petPrice: '',
                couponName: '',
                couponId: '',
                couponVal: '',
                couponList: []
            },
            2: {//剃光-除螨杀菌
                petID: '',
                productID: '',
                petName: '',
                petWeight: '',
                petPrice: '',
                couponName: '',
                couponId: '',
                couponVal: '',
                couponList: []
            },
            3: {//美容-深度清洁
                petID: '',
                productID: '',
                petName: '',
                petWeight: '',
                petPrice: '',
                couponName: '',
                couponId: '',
                couponVal: '',
                couponList: []
            },
            4: { // 洁牙-住家保姆
                petID: '',
                productID: '',
                petName: '',
                petWeight: '',
                petPrice: '',
                couponName: '',
                couponId: '',
                couponVal: '',
                couponList: []
            },
            5: { // spa-日常清洁
                petID: '',
                productID: '',
                petName: '',
                petWeight: '',
                petPrice: '',
                couponName: '',
                couponId: '',
                couponVal: '',
                couponList: []
            },
            6: { //训犬-育儿嫂
                petID: '',
                productID: '',
                petName: '',
                petWeight: '',
                petPrice: '',
                couponName: '',
                couponId: '',
                couponVal: '',
                couponList: []
            },
            7: { //断尾-月子套餐
                petID: '',
                productID: '',
                petName: '',
                petWeight: '',
                petPrice: '',
                couponName: '',
                couponId: '',
                couponVal: '',
                couponList: []
            },
            8: { // 碳酸浴-金牌月嫂
                petID: '',
                productID: '',
                petName: '',
                petWeight: '',
                petPrice: '',
                couponName: '',
                couponId: '',
                couponVal: '',
                couponList: []
            },
            9: {//驱虫-催乳服务
                petID: '',
                productID: '',
                petName: '',
                petWeight: '',
                petPrice: '',
                couponName: '',
                couponId: '',
                couponVal: '',
                couponList: []
            }
        });
        this.petInfo = this.getCache('petInfo', null, {
            petID: '',
            productID: '',
            petName: '',
            petWeight: '',
            petPrice: ''
        });
    };

    Cart.prototype = new base();

    //预检
    Cart.prototype.precheck = function (type, callback) {
        var productID = this.products[type]['productID'];
        var productParam = [{product_id: productID, count: 1}];//产品参数

        api.precheck({
            products: JSON.stringify(productParam)//产品
        }, function (res) {
            if (typeof(callback) == 'function') {
                callback(res);
            }
        })
    };

    return new Cart();
})