'use strict';
require('../app');
const _ = require('lodash');
const helpers = global.yoho.helpers;

/**
 * 根据性别来决定  默认图片获取字段   如果是 2、3
 *
 * 则优先从cover_2 --》 cover_1 -- 》 images_url
 * 否则优先从cover_1 --》 cover_2 -- 》 images_url
 *
 */
// const _procProductImg = (product, gender, yhChannel) => {
//     if (gender === '2,3' || gender === '2' || gender === '3' && yhChannel === '2') {
//         return product.cover_2 || product.images_url || product.cover_1 || '';
//     }
//
//     return product.cover_1 || product.images_url || product.cover_2 || '';
// };

const productNameProcess = require('./product-name-process');


const toArray = (obj) => {
    if (_.isArray(obj)) {
        return obj;
    }
    let arr = [];

    _.forEach(obj, (v, k) => {
        if (_.isObject(v)) {
            v._key = k;
        } else {
            v = {
                _key: k,
                _value: v
            };
        }
        arr.push(v);
    });

    return arr;
};

/**
 * 按照数组中指定字段排序二维数组
 *
 * @param  array list 需要排序的数组
 * @param  string key 字段名称
 * @param  boolean 有 desc 时候降序排列，默认为false
 */
const _sortListByField = (list, key, desc) => {
    let array = toArray(list);

    return array.sort(function(a, b) {
        a = a._key.split(',')[0] * 1;
        b = b._key.split(',')[0] * 1;
        return desc ? a < b : a > b;
    });

/*
    array = array.sort((a, b) => {
        let matchNumber = /([\d]+)/g;

        // 有键，使用键的值排序
        if (a[key] && b[key]) {
            let numA = +(_.toArray(a[key].match(matchNumber))[0] || 0); // 取第一个出现的数字排序，如果不存在，取0
            let numB = +(_.toArray(b[key].match(matchNumber))[0] || 0);

            return (desc ? numA > numB : numA < numB) ? -1 : 1;
        }

        // 无键， 使用本身
        let numA = +(_.toArray(a._value.match(matchNumber))[0] || 0);
        let numB = +(_.toArray(b._value.match(matchNumber))[0] || 0);

        return numA < numB ? -1 : 1;
    });

    return array;*/
};

/**
 * 商品搜索商品数据处理
 */
exports.processProductList = (list, options) => {
    const pruductList = [];

    options = Object.assign({
        showTags: true,
        showNew: true,
        showSale: true,
        width: 290,
        height: 388,
        isApp: false,
        showPoint: true,
        gender: '2,3'
    }, options);

    _.forEach(list, (product) => {
        if (!product) {
            return;
        }

        // 商品信息有问题，则不显示
        if (!(
            (product.product_id && _.get(product, 'goods_list.length', 0)) || product.recommend_type
        )) {
            return;
        }


        if (product.recommend_type) {
            // recommend_type 对应 附加属性
            let flagMap = {
                fashionArticle: '_isFashionArticle',
                seasonSort: '_isSeasonSort',
                hotShop: '_isHotShop',
                hotSearchTerm: '_isHotSearchTerm',
            };

            let extraAttr = flagMap[product.recommend_type];

            if (extraAttr) {
                product[extraAttr] = true;
                pruductList.push(product);
            }

            return;
        }

        // 如果库存为0,显示已抢完
        // if (product.storage_num === 0) {
        //     product.noStorage = true;
        // }

        // 市场价和售价一样，则不显示市场价
        if (product.market_price === product.sales_price) {
            product.market_price = false;
        }

        // 判别默认的商品是否将默认的图片URL赋值到skn
        // let flag = false;

        // 如果设置了默认图片，就取默认的图片
        // _.forEach(product.goods_list, (goods) => {
        //     if (flag) {
        //         return;
        //     }
        //     if (goods.is_default === 'Y') {
        //         // product.default_images = procProductImg(goods);
        //         // product.default_images = product.default_images;
        //         flag = true;
        //     }
        // });

        // 如果还未赋值，则取第一个skc产品的默认图片
        // if (!flag) {
        //     product.default_images = _procProductImg(product.goods_list[0], product.gender, options.yh_channel);
        // }

        product.is_soon_sold_out = product.is_soon_sold_out === 'Y';

        if (product.cn_alphabet) {
            product.cn_alphabet = productNameProcess(product.cn_alphabet);
        }

        product.url = helpers.urlFormat(`/product/p${product.product_id}.html`); // eslint-disable-line

        // APP访问需要加附加的参数
        // 备注：如果以后APP的接口太多，可以把这边参数提取出来，变成一个公共的方法来生成，便于以后管理维护
        if (options.isApp) {
            product.url += `?openby:yohobuy={"action":"go.productDetail","params":{"product_skn":"${product.product_skn}"}}`;  // eslint-disable-line
        }

        if (options.showTags) {
            let tags = {};

            _.forEach(product.tags, tag => {
                tags[tag] = true;
            });

            product.tags = tags;

            if (tags.is_solded === true) {
                product.is_solded = true;
            }

            product.is_soon_sold_out = tags.is_soon_sold_out;

        }

        pruductList.push(product);
    });

    return pruductList;
};


/**
 * 处理筛选数据
 * @param list
 * @param  string | options
 * @return array 处理之后的筛选数据
 */
exports.processFilter = (list, options) => {

    const filters = {
        classify: []
    };

    const filtersType = {
        brand: {
            name: '所有品牌',
            title: '品牌',
            dataId: 'id',
            subsName: 'brand_name',
            firstSub: 0,
            dataType: 'brand',
            sortNum: '1'
        },
        color: {
            name: '所有颜色',
            title: '颜色',
            dataId: 'color_id',
            subsName: 'color_name',
            firstSub: 0,
            dataType: 'color',
            sortNum: '4'
        },
        discount: {
            name: '所有商品',
            title: '折扣',
            dataId: 'key',
            subsName: 'name',
            firstSub: '0.1,0.9',
            dataType: 'p_d',
            sortNum: '7'
        },
        gender: {
            name: '所有性别',
            title: '性别',
            dataId: 'key',
            subsName: 'flag',
            firstSub: '1,2,3',
            dataType: 'gender',
            sortNum: '0'
        },
        group_sort: {
            name: '所有品类',
            title: '品类',
            dataId: 'relation_parameter',
            subsName: 'category_name',
            firstSub: 0,
            dataType: 'sort',
            sortNum: '3'
        },
        priceRange: {
            name: '所有价格',
            title: '价格',
            dataId: 'key',
            subsName: 'flag',
            firstSub: 0,
            dataType: 'price',
            sortNum: '6'
        },
        size: {
            name: '所有尺码',
            title: '尺码',
            dataId: 'size_id',
            subsName: 'size_name',
            firstSub: 0,
            dataType: 'size',
            sortNum: '5'
        },
        ageLevel: {
            name: '所有人群',
            title: '人群',
            dataId: 'id',
            subsName: 'name',
            firstSub: 0,
            dataType: 'ageLevel',
            sortNum: '2'
        }
    };

    options = Object.assign({
        gender: '1,2,3', // 默认选择的性别，默认1,2,3表示所有
        exclude: null // 需要排除的字段
    }, options);

    _.forEach(list, (item, key) => {
        let classify = {
            subs: []
        };

        if (!filtersType[key]) {
            return;
        }

        if ((options.hideSize && key === 'size') || (options.hideSort && key === 'group_sort')) {
            return;
        }

        classify.dataType = filtersType[key].dataType;
        classify.name = filtersType[key].name;
        classify.title = filtersType[key].title;

        classify.subs.push({
            chosed: true,
            dataId: filtersType[key].firstSub,
            name: filtersType[key].name
        });

        // 折扣，价格区间，需要排序
        if (key === 'discount' || key === 'priceRange') {
            item = _sortListByField(item, 'name');
        }

        _.forEach(item, (sub, index) => {
            let subs = {};

            if (key === 'discount') {
                subs.dataId = sub._key;
            } else if (key === 'priceRange') {
                subs.dataId = sub._key;
            } else if (filtersType[key].dataId === 'key') {
                subs.dataId = index;
            } else if (filtersType[key].dataId === 'relation_parameter') {
                subs.dataId = sub.relation_parameter['sort']; // eslint-disable-line
            } else {
                subs.dataId = sub[filtersType[key].dataId];
            }

            if (key === 'priceRange') {
                subs.name = sub._value;
            } else if (filtersType[key].subsName === 'flag') {
                subs.name = sub;
            } else {
                subs.name = sub[filtersType[key].subsName];

                if (key === 'discount') {
                    subs.name = subs.name + '折商品';
                }
            }
            classify.subs.push(subs);
        });

        filters.classify[filtersType[key].sortNum] = classify;
    });

    return filters;
};

/**
 * 解析尺码弹出框数据
 */
exports.processSizeInfo = (origin) => {
    let cartInfo = {},
        thumbImageList = [],
        colorGroup = {},
        sizeGroup = [],
        totalStorageNum = 0;

    if (origin.goods_list.length) {
        let goodsGroup = [],
            sizeName = '',
            colorList = [],
            sizeList = {},
            allSizeList = {},
            colorStorageGroup = {},
            colorStorageNum = 0;

        _.forEach(origin.goods_list, function(value) {
            // 未上架也显示
            // if (value.status === 0) {
            //     return;
            // }

            colorStorageNum = 0;

            // 商品分组
            if (value.images_list) {
                _.forEach(value.images_list, function(good) {
                    goodsGroup.push({
                        goodsId: value.goods_id,
                        img: good.image_url
                    });
                });
            }

            // 商品的尺码列表
            colorStorageGroup[value.product_skc] = {};
            if (value.size_list) {
                sizeList[value.product_skc] = [];
                _.forEach(value.size_list, function(size) {
                    sizeList[value.product_skc].push({
                        id: size.size_id,
                        skuId: size.product_sku,
                        goodsId: value.goods_id,
                        colorId: value.color_id,
                        name: size.size_name,
                        sizeNum: size.storage_number,
                        sizeInfo: size.size_info ? size.size_info : ''
                    });

                    sizeName = size.size_name;

                    // 所有尺码列表，赋值用于前端展示默认尺码的时候
                    // 判断出没有库存则显示灰色
                    let build = {
                        id: size.size_id,
                        storage: size.storage_number,
                        sizeInfo: size.size_info ? size.size_info : ''
                    };

                    allSizeList[sizeName] = (allSizeList[sizeName] === null ||
                    typeof allSizeList[sizeName] === 'undefined') ? build : allSizeList[sizeName];
                    colorStorageNum += parseInt(size.storage_number, 10);
                    colorStorageGroup[value.product_skc][sizeName] = parseInt(size.storage_number, 10);
                });


                // 颜色分组
                colorList.push({
                    id: value.color_id,
                    skcId: value.product_skc,
                    name: value.factory_goods_name || value.color_name,
                    colorNum: colorStorageNum
                });
            }

            // 缩略图
            thumbImageList.push({
                img: helpers.image(value.color_image, 300, 395)
            });

            // 商品库存总数
            totalStorageNum += _.toNumber(colorStorageNum);
        });

        // 遍历所有尺码，构建颜色显示数据
        let i = 1;

        sizeGroup[0] = {
            size: []
        };
        _.forEach(allSizeList, (value, key) => {

            // 默认尺码
            sizeGroup[0].size.push({
                name: key,
                sizeNum: _.toNumber(value.storage) > 0 ? true : false,
                id: value.id,
                sizeInfo: value.sizeInfo
            });

            colorGroup[i] = {
                color: []
            };

            // 各个颜色的尺码, 每行显示一个尺码对应的颜色
            _.forEach(colorList, (colorArr) => {
                let tempColorArr = _.cloneDeep(colorArr);

                if (colorStorageGroup[tempColorArr.skcId] &&
                    colorStorageGroup[tempColorArr.skcId][key]) {
                    tempColorArr.colorNum = colorStorageGroup[tempColorArr.skcId][key];
                } else {
                    tempColorArr.colorNum = 0;
                }
                colorGroup[i].color.push(Object.assign({}, tempColorArr));
            });
            colorGroup[i].id = value.id;

            ++i;
        });

        colorGroup[0] = {
            color: []
        };

        // 遍历所有颜色, 构建尺码显示数据
        i = 1;
        _.forEach(colorList, function(value) {

            // 各个尺码的颜色， 每行显示一个颜色的对应尺码
            sizeGroup[i] = {
                size: sizeList[value.skcId],
                colorId: value.skcId
            };

            // 默认颜色
            colorGroup[0].color.push(value);
            ++i;
        });
        _.orderBy(colorGroup);
        Object.assign(cartInfo, {
            productId: origin.product_id,
            thumbs: thumbImageList,
            name: origin.product_name || '',
            totalNum: totalStorageNum,
            colors: _.toArray(colorGroup),
            sizes: sizeGroup
        });
    }
    return cartInfo;
};