/**
 * 文件相关controller
 * @author: feng.chen<feng.chen@yoho.cn>
 * @date: 2017/04/13
 */
'use strict';

const Context = require('../framework/context');
const FileService = require('../service/file-service');
const XlsxService = require('../service/xlsx-service');
const Api = require('../common/api');
const apiDomain = require('../common/api-domain');
const fs = require('fs');
const _ = require('lodash');

class FileController extends Context {
  constructor() {
    super();
    this.api = this.instance(Api);
    this.fileService = this.instance(FileService);
    this.xlsxService = this.instance(XlsxService);
  }
  uploadImage(req, res, next) {
    let files = (req.files && req.files.file) || [];
    let errTip = null;

    if (!_.isArray(files)) {
      files = [files];
    }

    req.body.files = [];
    const bucket = req.body.bucket;
    _.each(files, file => {
      const types = file.type.split('/');

      if (bucket === 'invoices') {
        // 上传 pdf, pdf大小限制500k
        const isPDF = /pdf/i.test(file.type || '');
        if (!isPDF) {
          errTip = '上传文件格式不正确';
        }

        if (file.size > 500 * 1024) {
          errTip = '上传文件尺寸太大！';
        }
      } else {
        if (!types || types[0] !== 'image') {
          errTip = '上传文件格式不正确！';
        }

        // 10M
        if (file.size > 10 * 1024 * 1024) {
          errTip = '上传文件尺寸太大！';
        }
      }

      if (errTip) {
        return false; // return early
      }
      req.body.files.push(fs.createReadStream(file.path));
      req.body.files.push(file.name);
    });

    if (errTip) {
      return res.status(403).send({
        message: errTip,
      });
    }

    if (bucket === 'goodsimg' || bucket === 'invoices') {
      this.api
        .upload('http://upload.static.yohobuy.com', {
          fileData: req.body.files,
          project: bucket,
        })
        .then(result => {
          if (result.code === 200 && _.get(result, 'data.imagesList.length', 0)) {
            result.data.imagesList = _.map(result.data.imagesList, imgUrl => {
              return this.fileService.getAbsoluteUrl(imgUrl, bucket);
            });
          }
          res.json(result);
        })
        .catch(next);
    } else {
      this.api
        .upload(apiDomain.platform.uploads, {
          files: req.body.files,
          bucket,
        })
        .then(result => {
          const newResult = {
            code: result.code,
            data: {},
            message: result.message,
          };

          if (result.code === 200) {
            newResult.data.imagesList = [result.data[0]];
          }
          res.json(newResult);
        })
        .catch(next);
    }
  }
}

module.exports = FileController;