/**
 * 逛详情models
 * @author: chenfeng<feng.chen@yoho.cn>
 * @date: 2016/09/07
 */
'use strict';
const serviceAPI = global.yoho.ServiceAPI;
const _ = require('lodash');
const helpers = global.yoho.helpers;

const URI_PACKAGE_ARTICLE = 'guang/service/v2/article/';
const URI_PACKAGE_AUTHOR = 'guang/service/v1/author/';

class DetailModel extends global.yoho.BaseModel {
    constructor(ctx) {
        super(ctx);
    }

    /**
     * 获取二级菜单顶部颜色
     * @param  {[string]} choosed
     * @return {[string]}
     */
    _getSidebarColor(choosed) {
        let color = false;

        if (choosed === 'girls') {
            color = '#FF88AE';
        } else if (choosed === 'kids') {
            color = '#7ad9f9';
        } else if (choosed === 'lifestyle') {
            color = '#4f4138';
        }

        return color;
    }

    /**
     * 微信侧边栏导航数据
     * @param {*} list
     * @param {*} choosed
     */
    _processSideBar(list, choosed) {
        const formatData = [];
        let offset = 0; // 分割数组用到的游标

        list = list || [];

        _.forEach(list, (item, i) => {
            if (item.sub) {
                item.sub.unshift({
                    sort_name: item.sort_name,
                    sort_name_en: item.sort_name_en,
                    back: true,
                    isSelect: false,
                    bgColor: this._getSidebarColor(choosed)
                });
            }

            // 如果有分隔符，分割数组
            if (item.separative_sign === 'Y') {
                formatData.push(list.slice(offset, i));
                offset = i;
            }
        });

        // 数组被分割剩余的部分
        formatData.push(list.slice(offset));
        return formatData;
    }

    _getLeftNav(choosed) {
        choosed = choosed || 'all';

        return this.get({
            api: serviceAPI,
            url: 'operations/api/v6/category/getCategory',
            data: {},
            param: {
                cache: true
            }
        }).then(result => {
            if (result && result.code === 200) {

                return this._processSideBar(result.data, choosed);
            }
        });
    }

    _getShareData(id) {
        return this.get({
            api: serviceAPI,
            url: 'guang/api/v6/share/guang',
            data: {id: id}
        }).then(result => {
            if (result && result.code === 200) {

                return result.data;
            }
        });
    }

    /**
     * 获取文章接口调用
     * @param {*} articleId
     */
    _getArticle(articleId) {
        return this.get({
            api: serviceAPI,
            url: `${URI_PACKAGE_ARTICLE}getArticle`,
            data: {article_id: articleId},
            param: {
                cache: true
            }
        });
    }

    /**
     * 获取作者接口调用
     * @param {*} authorId
     */
    _getAuthor(authorId) {
        return this.get({
            api: serviceAPI,
            url: `${URI_PACKAGE_AUTHOR}getAuthor`,
            data: {author_id: authorId},
            param: {
                cache: true
            }
        });
    }

    /**
     * 获取文章详情接口调用
     * @param {*} articleId
     */
    _getArticleContent(articleId) {
        return this.get({
            api: serviceAPI,
            url: `${URI_PACKAGE_ARTICLE}getArticleContent`,
            data: {article_id: articleId},
            param: {
                cache: true
            }
        });
    }

    /**
     * 获取文章相关品牌接口调用
     * @param {*} articleId
     */
    _getBrand(articleId) {
        return this.get({
            api: serviceAPI,
            url: `${URI_PACKAGE_ARTICLE}getBrand`,
            data: {article_id: articleId},
            param: {
                cache: true
            }
        });
    }

    /**
     * 获取资讯相关的其它资讯接口调用
     * @param {*} articleId
     * @param {*} tag
     */
    _getOtherArticle(articleId, tag) {
        return this.get({
            api: serviceAPI,
            url: `${URI_PACKAGE_ARTICLE}getOtherArticle`,
            data: {
                article_id: articleId,
                tags: tag,
                offset: 0,
                limit: 3
            },
            param: {
                cache: true
            }
        });
    }

    /**
     * APP 获取微信模块
     */
    _getSingleTemplateWechat() {
        return this.get({
            data: {
                method: 'app.resources.getSingleTemplate',
                module: 'wechat',
                key: 'guang_detail_wechat'
            },
            param: {
                cache: true
            }
        });
    }

    /**
     * [逛资讯详情页数据封装]
     * @param  {[int]}  id    [内容ID]
     * @param  {Boolean} isApp [标识是否是APP访问]
     * @return {[array]}
     */
    packageData(id, isApp, isWeixin, channel, isShare) {
        let result = {
            getAuthor: {},
            getArticle: {},
            getArticleContent: {},
            getBrand: {},
            getOtherArticle: {}
        };

        // 获取资讯
        return this._getArticle(id).then(data => {
            // 调用接口失败
            if (!data || data.code !== 200) {
                result.code = 400;
                return result;
            }
            let article = result.getArticle = data && data.data || {};
            let promises = [
                this._getAuthor(article.author_id),
                this._getArticleContent(id),
                this._getBrand(id)
            ];

            // 获取资讯相关的其它资讯
            if (typeof article.tag !== 'undefined') {
                promises.push(this._getOtherArticle(id, article.tag));
            }

            // APP 获取微信模块
            if (isApp) {
                promises.push(this._getSingleTemplateWechat());
            }

            if (isShare) {
                let navGender = _.cloneDeep(channel);

                promises.push(
                    this._getLeftNav(navGender),
                );
            }

            return Promise.all(promises).then(datas => {
                let getArticleContent = [];

                if (!datas) {
                    return result;
                }

                if (datas[1]) {
                    result.getArticleContent = getArticleContent = datas[1].data;
                }

                if (isApp && datas[4] && datas[4].data) {
                    let preCount = 0;
                    let i;

                    for (i = 0; i < getArticleContent.length; i++) {
                        if (getArticleContent[i].singleImage ||
                            getArticleContent[i].text || getArticleContent[i].smallPic) {
                            preCount++;
                        }
                    }

                    _.forEach(datas[4].data, item => {
                        item.src = helpers.image(item.src, 280, 210, 1);
                    });

                    getArticleContent.splice(preCount, 0, {
                        weixinPublic: datas[4].data
                    });
                }

                if (datas[0]) {
                    result.getAuthor = datas[0].data;
                }


                if (datas[2]) {
                    result.getBrand = datas[2].data;
                }

                if (isShare && datas[4]) {
                    result.sideNav = datas[4];
                }

                if (datas.length === 5 && isApp || datas.length === 4 && !isApp || datas.length === 6 && isShare) {
                    if (datas[3]) {
                        result.getOtherArticle = datas[3].data;
                    }
                }

                return result;
            });
        });
    }

    /**
     * [获取详情信息]
     * @param  {[int]} id [资讯id]
     * @return {[object]}
     */
    intro(id) {
        return this.get({
            api: serviceAPI,
            url: `${URI_PACKAGE_ARTICLE}getArticleContent`,
            data: {
                article_id: id,
                client_type: 'h5'
            },
            param: {
                cache: true
            }
        });
    }

    /**
     * [根据商品SKN获取商品的简要信息]
     * @param  {[array]} sknString [skns]
     * @return {[type]}
     */
    productInfoBySkns(sknString) {
        return this.get({
            data: {
                method: 'h5.product.batch',
                productSkn: sknString,
                order: 's_t_desc'
            },
            param: {
                cache: true
            }
        }).then(result => {
            return _.get(result, 'data.product_list', []);
        });
    }
}

module.exports = DetailModel;