/**
 * Created by TaoHuang on 2016/6/28.
 */

'use strict';
const Promise = require('bluebird');
const co = Promise.coroutine;
const _ = require('lodash');
const Api = require('./shop-api');
const SearchApi = require('./search-api');
const helpers = global.yoho.helpers;

const shopHandler = require('./shop-handler');
const searchHandler = require('./search-handler');
const headerModel = require('../../../doraemon/models/header');
const productProcess = require('../../../utils/product-process');

const DEFAULT_IMG = '01091c21f2317a64f123f1649fbbccf7ba';

// 经典店铺list url
const shopListUrl = '/product/shoplist';

const needParams = ['query', 'msort', 'misort', 'category_id', 'gender', 'shelveTime'];

/**
 * channel=>gender
 */
const _getGender = (channel) => {
    let gender;

    switch (channel) {
        case 'boys':
            gender = '1,3';
            break;
        case 'girls':
            gender = '2,3';
            break;
        default:
            gender = '1,2,3';
            break;
    }

    return gender;
};


function _getShopData(channel, params, shopInfo) {
    params = params || {};

    let gender = _getGender(channel),
        shopId = params.shopId;
    let resData = {shopId: shopId};

    return co(function* () {
        let result = yield Promise.props({
            header: headerModel.requestHeaderData(channel), // 头部数据
            sort: this.searchApi.getSortList({shop_id: shopId}),
            decorator: this.searchApi.getShopDecorator(shopId), // 店铺装修数据
            product: this.searchApi.getProductList(Object.assign({
                shop_id: shopId,
                need_filter: 'no'
            }, params), 'shop'), // 搜索店铺商品
            brands: this.searchApi.getShopBrands(shopId), // 店铺品牌数据
            coupons: this.api.shopCouponListAsync(shopId), // 店铺优惠券数据
            shopInfo: shopInfo ? Promise.resolve(shopInfo) : this.api.getShopInfo(shopId)
        });

        if (!shopInfo) {
            shopInfo = _.get(result, 'shopInfo.data', {});
        }

        Object.assign(resData,
            result.header, // 头部数据
            searchHandler.handlePathNavData({brandName: shopInfo.shop_name}, params, 'shop', channel), // 面包屑导航
            searchHandler.getBrandShopSeo(channel, {shopName: shopInfo.shop_name}, params) // 店铺SEO
        );

        _.set(resData, 'headerData.header', true);

        // 店铺装修
        if (result.decorator.code === 200) {
            Object.assign(resData, shopHandler.getShopDecorator(result.decorator.data, params, shopId));

            _.set(resData, 'shopTopBanner.brandIntro', {
                shopId: shopId,
                brandName: shopInfo.shop_name || '',
                brandCont: shopInfo.shop_intro || ''
            });
        } else {
            return Promise.reject('No ShopDecorator data');
        }

        // 获取商品数据和顶部筛选条件
        if (result.product.code === 200) {
            let data = result.product.data;
            let allGoods = {
                name: '全部商品 ALL',
                sort: searchHandler.handleOptsData(params, _.get(data, 'total', 0)),
                list: productProcess.processProductList(_.get(data, 'product_list', []), {
                    newCoverSort: true,
                    showDiscount: false,
                    gender: gender
                }),
                href: `/product/shoplist?navBar=1&shopId=${shopId}`
            };

            _.set(allGoods, 'sort.newPage', true); // 启用新的分页导航

            resData.allGoods = allGoods;
        }

        // 店铺类目
        if (result.sort.code === 200) {
            let groupSort = _.get(result.sort, 'data', []);

            resData.leftContent = searchHandler.handleSortData(groupSort, params, params, shopListUrl);

            _.set(resData, 'brandShopAd', {baseUrl: shopListUrl});

            if (resData.allGoods) {
                Object.assign(resData.allGoods, searchHandler.setShopSort(groupSort, Object.assign({},
                    params, {page: 1})), searchHandler.setGenderFilter(params));
            }
        }

        // 店铺优惠券
        if (result.coupons.data && !_.isEmpty(result.coupons.data)) {
            resData.coupon = searchHandler.handleBrandShopCoupons(result.coupons.data, {shopId: shopId});
        }

        let sknList = []; // 资源位配置商品skn
        let prodList = _.concat(_.get(resData, 'newArrivel.list', []),
            _.get(resData, 'hotSingle.list', []));

        _.forEach(prodList, value => {
            sknList.push(value.productSkn);
        });

        let apiMethod = [
            this.searchApi.getProductList({
                viewNum: sknList.length,
                query: _.join(_.uniq(sknList), ',')
            }, 'shop')
        ];

        // 店铺品牌
        if (result.brands.code === 200 && result.brands.data) {
            let brands = [];

            _.forEach(result.brands.data, value => {
                brands.push(value.brand_id);
            });

            resData.shopBrands = brands.join(',');
        }

        let subRes = yield Promise.all(apiMethod);

        // 设置资源位商品封面图
        if (subRes[0].code === 200) {
            let list = {};

            prodList = productProcess.processProductList(_.get(subRes[0], 'data.product_list', []), {
                newCoverSort: true,
                showDiscount: false,
                gender: gender
            });

            _.forEach(prodList, value => {
                list[value.product_skn] = {
                    img: value.default_images,
                    title: value.product_name,
                    price: `¥${value.sales_price}`
                };
            });

            if (_.has(resData, 'newArrivel.list')) {
                _.forEach(resData.newArrivel.list, value => {
                    if (list[value.productSkn]) {
                        Object.assign(value, list[value.productSkn]);
                    }
                });
            }

            if (_.has(resData, 'hotSingle.list')) {
                _.forEach(resData.hotSingle.list, value => {
                    if (list[value.productSkn]) {
                        Object.assign(value, list[value.productSkn]);
                    }
                });
            }
        }

        resData.trendInfo = true; // 展示店铺推荐文章

        return resData;
    }).bind(this)();
}


/**
 * 获取基础模板店铺数据
 */
function _getBaseShopData(channel, params, shopInfo) {
    params = params || {};

    let searchParams = searchHandler.getSearchParams(params);
    let shopId = params.shopId;

    return co(function* () {
        let result = yield Promise.props({
            header: headerModel.requestHeaderData(channel), // 头部数据
            sort: this.searchApi.getSortList({shop_id: shopId}),
            decorator: this.searchApi.getShopDecorator(shopId), // 店铺装修数据
            product: this.searchApi.getProductList(Object.assign(searchParams,
                {shop_id: shopId}), 'shop'), // 搜索店铺商品
            coupons: this.api.shopCouponListAsync(shopId), // 店铺优惠券数据
            shopInfo: shopInfo ? Promise.resolve(shopInfo) : this.api.getShopInfo(shopId)
        });

        if (!shopInfo) {
            shopInfo = _.get(result, 'shopInfo.data', {});
        }

        const shopName = shopInfo.shop_name;

        let resData = {
            shopId: shopId,
            brand: Object.assign({brandShopAd: true},
                searchHandler.handlePathNavData({brandName: shopName}, params, 'shop', channel))
        };

        Object.assign(resData,
            result.header, // 头部数据
            searchHandler.getBrandShopSeo(channel, {shopName: shopName}, params));

        _.set(resData, 'headerData.header', true);
        _.set(resData, 'brand.shopBanner', {
            shopId: shopId,
            shopName: shopName,
            shopHome: `/?shopId=${shopId}`,
            shopIntro: `/shop${shopId}-about`
        });

        // 店铺装修
        if (result.decorator.code === 200) {
            let data = result.decorator.data || {},
                decorator = shopHandler.getShopDecorator(data, {}, shopId, true);

            Object.assign(resData.brand.shopBanner, decorator.shopTopBannerBase || {});

            // 设置店招高度
            _.set(resData, 'brand.shopBanner.bannerHeight', 150);

            if (decorator.signboard) {
                _.set(resData, 'brand.signboard', decorator.signboard);
            }
        }

        // 获取左侧类目数据
        if (result.sort.code === 200) {
            let dps = {shopId: shopId};

            _.forEach(needParams, value => {
                if (params[value]) {
                    dps[value] = params[value];
                }
            });

            Object.assign(resData.brand, {
                leftContent: searchHandler.handleSortData(result.sort.data, dps, params)
            });
        }

        // 获取商品数据和顶部筛选条件
        if (result.product.code === 200) {
            let data = result.product.data;
            let filters = Object.assign(searchHandler.handleFilterDataAll(data, params),
                _.get(resData, 'brand.leftContent.sort', {}));

            filters.checkedConditions.conditions = _.concat(filters.checkedConditions.conditions,
                _.get(resData, 'brand.leftContent.checked', []));

            Object.assign(resData.brand, {
                filters: filters,
                opts: searchHandler.handleOptsData(params, data.total, data.filter),
                totalCount: data.total,
                footPager: searchHandler.handlePagerData(data.total, params),
                goods: productProcess.processProductList(data.product_list,
                    Object.assign({showDiscount: false, from: {type: 'shop', params: params}}, params)),
                hasNextPage: searchHandler.handleNextPage(params, data.total),

                // 最近浏览记录
                latestWalk: 7
            });

            // 店铺页不显示品牌筛选项
            _.unset(resData, 'brand.filters.brand');
        }

        // 店铺优惠券
        if (result.coupons && !_.isEmpty(result.coupons.data)) {
            _.set(resData, 'brand.coupon',
                searchHandler.handleBrandShopCoupons(result.coupons.data, {shopId: shopId}));
        }

        return resData;
    }).bind(this)();
}

function getShopInfoAsync(domain, channel, params) {
    let resData;
    let shopId = _.get(params, 'shopId');

    return co(function* () {
        let data, shopInfo;

        _.unset(params, 'domain');
        domain = _.toLower(domain);

        if (shopId) { // 带id访问
            let result = yield this.api.getShopInfo(shopId);

            data = result.data;

            // 根据店铺ID，未取到店铺信息，跳转至首页
            if (result.code !== 200 || _.isEmpty(data)) {
                return {redirect: helpers.urlFormat('')};
            }

            let lowResDomain = _.toLower(data.shop_domain);

            // 根据店铺ID取到的店铺domain与链接中domain不一致，跳转至店铺域名下（解决店铺域名与品牌域名混用的问题）
            if (lowResDomain !== domain) {
                return {redirect: helpers.urlFormat('', params, lowResDomain)};
            }

            shopInfo = data;
        } else { // 以店铺域名方式直接访问
            let result = yield this.searchApi.getBrandData({domain: domain});

            data = result.data;

            // 未取到domain信息，跳转至首页
            if (result.code !== 200) {
                return {redirect: helpers.urlFormat('')};
            }

            // domain类型不为店铺，跳转至搜索
            if (data.type * 1 !== 2) {
                let d = {query: domain};

                if (data.id) {
                    d.brand = data.id;
                }

                return {redirect: helpers.urlFormat('', d, 'search')};
            }

            params.shopId = data.shop_id;
        }

        if (+data.shop_template_type === 2) { // 经典店铺
            resData = yield this._getShopData(channel, params, shopInfo);
        } else {
            resData = yield this._getBaseShopData(channel, params, shopInfo);
        }

        return Object.assign(resData, {templateType: +data.shop_template_type});
    }).bind(this)();
}

function getShopListInfoAsync(channel, params) {
    let gender = _getGender(channel),
        shopId = params.shopId,
        navBar = params.navBar || 1;

    let searchParams = searchHandler.getSearchParams(params);

    return co(function* () {
        let result = yield Promise.props({
            header: headerModel.requestHeaderData(channel), // 头部数据
            shopInfo: this.api.getShopInfo(shopId), // 店铺介绍
            decorator: this.searchApi.getShopDecorator(shopId), // 店铺装修数据
            sort: this.searchApi.getSortList({shop_id: shopId}),
            product: this.searchApi.getProductList(Object.assign(searchParams,
                {shop_id: shopId}), 'shop'), // 搜索店铺商品

            // 如果有店内搜索，则并行查询店铺所有商品，搜索不到商品则显示所有商品
            allProduct: params.query ? this.searchApi.getProductList(Object.assign(searchParams,
                {shop_id: shopId, query: ''}), 'shop') : Promise.resolve({})
        });

        let resData = {headerData: Object.assign(result.header.headerData, {header: true})};

        Object.assign(resData, searchHandler.handlePathNavData({}, params, 'shop', channel));

        // 店铺装修
        if (result.decorator.code === 200) {
            Object.assign(resData, shopHandler.getShopDecorator(result.decorator.data, params, shopId));

            // 设置shop nav选中状态
            _.set(resData, `navigationBar[${navBar}].current`, true);

            if (result.shopInfo.code === 200) {
                let data = _.get(result, 'shopInfo.data', {});

                _.set(resData, 'shopTopBanner.brandIntro', {
                    shopId: shopId,
                    brandName: data.shop_name || '',
                    brandCont: data.shop_intro || ''
                });

                // 店铺SEO
                Object.assign(resData, searchHandler.getBrandShopSeo(channel, {
                    shopName: data.shop_name
                }, params));
            }
        } else {
            return Promise.reject('No ShopDecorator data');
        }

        // 获取商品数据和顶部筛选条件
        if (result.product.code === 200) {
            let info = result.product;
            let goodsList = _.get(info, 'data.product_list', []);

            if (goodsList.length) {
                let totalPage = _.get(info, 'data.total', 1);

                Object.assign(resData, {
                    filters: searchHandler.handleFilterDataAll(info.data, params),
                    opts: searchHandler.handleOptsData(params, totalPage),
                    goods: productProcess.processProductList(goodsList, {
                        newCoverSort: true,
                        showDiscount: false,
                        gender: _getGender(channel),
                        query: params.query
                    }),
                    hasNextPage: searchHandler.handleNextPage(params, totalPage),
                    footPager: searchHandler.handlePagerData(totalPage, params)
                });

                _.set(resData, 'filters.checkedConditions.clearUrl',
                    `?navBar=${params.navBar}&shopId=${params.shopId}`);
            } else {
                resData.searchEmpty = true;

                let data = _.get(result, 'allProduct.data.total', 0);
                let plist = _.get(data, 'product_list', []);

                if (params.query && plist.length) {
                    resData.allGoods = {
                        name: '全部商品 ALL',
                        sort: searchHandler.handleOptsData(params, data.total || 0),
                        list: productProcess.processProductList(plist, {
                            newCoverSort: true,
                            showDiscount: false,
                            gender: gender
                        })
                    };

                    _.set(resData.allGoods, 'sort.newPage', true); // 启用新的分页导航
                }
            }
        }

        if (result.sort.code === 200) {
            let groupSort = _.get(result.sort, 'data', []),
                noPageQs = Object.assign({}, params, {page: 1});

            resData.leftContent = searchHandler.handleSortData(groupSort, noPageQs, params);

            _.set(resData, 'brandShopAd', {baseUrl: shopListUrl});

            if (resData.allGoods) {
                Object.assign(resData.allGoods, searchHandler.setShopSort(groupSort, noPageQs));
            }
        }

        resData.criteo = {skn: searchHandler.getCriteo(_.get(resData, 'goods'))};

        return resData;
    }).bind(this)();
}

function getShopGoodsData(shopId, channel, params) {
    let gender = _getGender(channel);
    let resData = {};

    _.unset(params, '_pjax');
    return Promise.all([
        this.searchApi.getProductList(Object.assign({shop_id: shopId}, params), 'shop'), // 搜索店铺商品
        this.searchApi.getSortList({shop_id: shopId}) // 根据店铺id获取分类
    ]).then(result => {
        // 获取商品数据和顶部筛选条件
        if (result[0].code === 200) {
            Object.assign(resData, {
                sort: searchHandler.handleOptsData(params, _.get(result[0], 'data.total', 0)),
                list: productProcess.processProductList(_.get(result[0], 'data.product_list', []), {
                    newCoverSort: true,
                    showDiscount: false,
                    gender: gender
                })
            });
            _.set(resData, 'sort.newPage', true); // 启用新的分页导航
        }

        if (result[1].code === 200) {
            let groupSort = _.get(result[1], 'data', []);

            Object.assign(resData, searchHandler.setShopSort(groupSort, Object.assign({}, params,
                {page: 1})), searchHandler.setGenderFilter(params));
        }

        return resData;
    });
}


module.exports = class extends global.yoho.BaseModel {
    constructor(ctx) {
        super(ctx);
        this.api = new Api(ctx);
        this.searchApi = new SearchApi(ctx);

        this._getShopData = _getShopData.bind(this);
        this._getBaseShopData = _getBaseShopData.bind(this);

        this.getShopInfoAsync = getShopInfoAsync.bind(this);
        this.getShopListInfoAsync = getShopListInfoAsync.bind(this);
        this.getShopGoodsData = getShopGoodsData.bind(this);
    }

    getShopBannerAsync(shopId) {
        return this.api.shopBannerAsync(shopId).then((result) => {
            if (result.code === 200) {
                return _.includes(result.data.banner, DEFAULT_IMG) ? '' : result.data.banner;
            } else {
                return null;
            }
        });
    }

    queryShopByBrandIdAsync(sid, bid) {
        return co(function* () {
            let result = yield this.api.queryShopsByBrandId(sid, bid);

            if (_.get(result, 'code') !== 200) {
                return false;
            }

            return _.get(result, 'data[0]', {});
        }).bind(this)();
    }


    getShopArticleByBrandsAsync(brands) {
        let resData = {};

        brands = _.split(brands, ',');

        if (!brands.length) {
            return Promise.resolve(resData);
        }

        return Promise.all(brands.map(value => this.searchApi.getArticleByBrand(value))).then(result => {
            let articleList = [];

            for (let i = 0; i < result.length; i++) {
                articleList = _.concat(articleList, _.get(result[i], 'data', []));
            }

            if (articleList.length >= 3) {
                articleList.length = 3;

                resData.trendInfo = {
                    name: '潮流资讯 HOT ITEMS',
                    trendList: articleList.map(value => {
                        return {
                            href: helpers.urlFormat(`/guang/${value.id}.html`, null),
                            src: helpers.getForceSourceUrl(value.src) +
                            '?imageView2/1/w/{width}/h/{height}',
                            mainTitle: value.title,
                            Subtitle: value.intro
                        };
                    })
                };
            }

            return resData;
        });
    }
};