/**
 * 公共接口
 * @author: jinhu.dong<jinhu.dong@yoho.cn>
 * @date: 2016/07/21
 */

'use strict';

const request = require('request');
const fs = require('fs');

// 获取图片绝对地址
const getImgHost = (url) => {
    let domain = 'static.yhbimg.com/goodsimg',
        urlArr = url.split('/'),
        num = urlArr[urlArr.length - 1].substr(1, 1),
        url1 = domain + url;

    if (num === 1) {
        return 'http://img11.' + url1;
    } else {
        return 'http://img12.' + url1;
    }
};

// 上传图片
const uploadImg = (req, res) => {
    let i = 0;
    let files;
    let imgs, datas;

    if (req.user.uid) {
        files = [req.files.filename];

        // 如果是单张，则数组化
        if (Object.prototype.toString.call(files) !== '[object Array]') {
            files = [req.files.filename];
        }

        req.body.files = [];
        req.body.fileNames = [];

        for (let fileIndex = 0; fileIndex < files.length; fileIndex++) {
            req.body.files[fileIndex] = fs.createReadStream(files[fileIndex].path);
            req.body.fileNames[fileIndex] = files[fileIndex].name;
        }

        if (req.body.bucket === 'goodsimg') {
            request.post({
                url: 'http://upload.static.yohobuy.com',
                formData: {
                    fileData: req.body.files,
                    project: req.body.bucket
                },
                json: true
            }, function(error, httpResponse, rebody) {
                if (!error && httpResponse.statusCode === 200) {
                    imgs = rebody.data.imagesList || [];
                    datas = [];

                    // 生成图片绝对地址
                    for (i = 0; i < imgs.length; i++) {
                        datas.push(getImgHost(imgs[i]));
                    }
                }

                res.json({
                    code: 200,
                    data: datas[0],
                    datas: datas,
                    names: req.body.fileNames,
                    message: '上传成功',
                    status: true
                });
            });
        } else {
            res.json({
                code: 500,
                message: '上传图片失败, 请稍后重试!'
            });
        }
    } else {
        res.json({
            code: 401,
            message: '用户失效,请重新登录'
        });
    }
};

module.exports = {
    uploadImg
};