/**
 * 逛rss订阅models
 * @author: chenfeng<feng.chen@yoho.cn>
 * @date: 2016/09/13
 */
'use strict';
const mRoot = '../models';
const IndexModel = require(`${mRoot}/index`);
const DetailModel = require(`${mRoot}/detail`);
const guangProcess = require(`${global.utils}/guang-process`);
const htmlProcess = require(`${global.utils}/html-process`);
const helpers = global.yoho.helpers;

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

        this.indexModel = new IndexModel(ctx);
        this.detailModel = new DetailModel(ctx);
    }

    /**
     * [构建信息内容]
     * @param  {[int]} id [资讯id]
     * @return {[string]}
     */
    _genIntro(id) {
        let result = '';

        return this.detailModel.intro(id).then((resData) => {
            if (resData.data) {
                resData.data.forEach((value) => {
                    if (value.text) { // 文字
                        result += htmlProcess.removeHtml(htmlProcess.escapeToHtml(value.text.data.text)) + '<br/>';
                    } else if (value.singleImage) { // 单张图
                        result += `<img src="https:${helpers.image(value.singleImage.data[0].src, 640, 640)}"/><br/>`;
                    } else if (value.smallPic && value.smallPic.data) { // 多张小图
                        value.smallPic.data.forEach((small) => {
                            result += `<img src="https:${helpers.image(small.src, 315, 420)}"/>`;
                        });
                        result += '<br/>';
                    }
                });

                result += `<a href="https://m.yohobuy.com/guang/${id}.html?ref=rss">查看原文</a>`;
                return result;
            }
        });

    }

    /**
     * [获取订阅的资讯文章列表]
     * @param  {[int]} gender [性别参数(1,3表示男, 2,3表示女, 默认为所有)]
     * @return {[array]}
     */
    getRssArticle(gender) {
        let result = [],
            articlePromise;
        let limit = 10;

        switch (gender) {
            case '1,3':
                articlePromise = this.indexModel.getArticleList('1,3', 0, 0, '', 1, null, null, limit, false);
                break;
            case '2,3':
                articlePromise = this.indexModel.getArticleList('2,3', 0, 0, '', 1, null, null, limit, false);
                break;
            default:
                articlePromise = this.indexModel.getArticleList('1,2,3', 0, 0, '', 1, null, null, limit, false);
                break;
        }
        return articlePromise.then((article) => {
            // 内容列表
            if (article && article.data && article.data.list && article.data.list.artList) {
                let build = {};

                let artListFunc = (i, len, resolve) => {
                    if (i < len) {
                        let value = article.data.list.artList[i];

                        if (typeof value.id !== 'undefined') {
                            build = guangProcess.formatArticle(value, false, false, true);
                            build.author = build.author || {};
                            build.author.name = (build.author && build.author.name) || '';
                            return this._genIntro(value.id).then((intro) => {
                                build.intro = intro;
                                result.push(build);
                                artListFunc(++i, len, resolve);
                            });
                        }
                    } else {
                        resolve(result);
                    }
                };

                return new Promise((resolve) => {
                    artListFunc(0, article.data.list.artList.length, resolve);
                });

            }
        });
    }
}

module.exports = RssModel;