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

const Context = require('../framework/context');
const UserService = require('../service/user-service');
const _ = require('lodash');

class UserController extends Context {
  constructor() {
    super();
    this.userService = this.instance(UserService);
  }
  login(req, res, next) {
    Promise.all([
      this.userService.login(req.body.username, req.body.password),
      this.userService.shopLogin(req.body.username, req.body.password),
    ])
      .then(
        allResult => {
          const user = allResult[0];
          const sess = allResult[1];
          let overdueInfo = '';

          if (user.pwdExpirationDays > 0) {
            overdueInfo = `您的密码即将在${user.pwdExpirationDays}天后过期`;
          } else if (user.pwdExpirationDays !== null) {
            overdueInfo =
              user.pwdExpirationDays === 0 ? '您的密码已于今天过期' : `您的密码已过期${user.pwdExpirationDays}天`;
          }

          this.userService.getShops(user.pid).then(result => {
            if (result.code === 200) {
              const currentShop = _.first(result.data);
              const needUpdate = user.pwdComplexRate === false;

              this.userService
                .switchShop({
                  shopId: currentShop.shopsId,
                  cookies: sess,
                })
                .then(shopSess => {
                  this.syncSession(
                    { req, res },
                    Object.assign(user, {
                      shops: result.data,
                    }),
                    shopSess,
                    currentShop,
                    needUpdate
                  );

                  return res.json({
                    code: 200,
                    data: {
                      name: user.account,
                      email: user.email,
                      createDate: user.create_date,
                      shops: result.data,
                      currentShop,
                      overdueInfo,
                      pwdComplexRateDesc: user.pwdComplexRateDesc,
                      needUpdate,
                      token: user.token,
                      pid: user.pid,
                    },
                  });
                });
            } else {
              result.data.overdueInfo = overdueInfo;
              return res.json(result);
            }
          });
        },
        err => {
          req.session.isCaptcha = true;
          res.cookie('_captcha', true, {
            path: '/',
          });
          return res.json(
            Object.assign(err, {
              captcha: true,
            })
          );
        }
      )
      .catch(next);
  }
  updatePwd(req, res) {
    if (!req.user.uid) {
      return res.status(401).json({
        code: 401,
        message: '抱歉，您暂未登录！',
        data: {
          refer: '/login',
        },
      });
    }
    if (!req.body.password) {
      return res.json({
        code: 400,
        message: '请输入密码',
      });
    }
    return this.userService.updatePwd(req.user.uid, req.body.password).then(result => {
      if (result.code !== 200) {
        return res.json(result);
      }
      delete req.session.needUpdate;
      return res.json({
        code: 200,
        data: '密码修改成功',
      });
    });
  }
  logout(req, res) {
    delete req.session.USER;
    delete req.session.LOGIN_UID;
    delete req.session.CURRENT_SHOP;
    delete req.session.needUpdate;
    res.clearCookie('PHPSESSID', {
      domain: '.yohobuy.com',
    });
    res.clearCookie('connect.sid', {
      domain: '.yohobuy.com',
    });
    res.clearCookie('_isLogin');
    res.clearCookie('_sign');
    res.clearCookie('yoho-shop');
    res.clearCookie('yoho-shop.sig');
    return res.json({
      code: 200,
      data: '登出成功',
    });
  }
  config(req, res) {
    const config = {
      shopsFeDomain: '//shop-manage.yohobuy.com/oldshops',
    };

    if (global.env.Gray) {
      Object.assign(config, {
        shopsFeDomain: '//shopmanage.yohobuy.com/oldshops',
      });
    } else if (global.env.Production) {
      Object.assign(config, {
        shopsFeDomain: '//shopmanage.yohobuy.com/oldshops',
      });
    }
    res.json(config);
  }
  switchShop(req, res) {
    const shopId = req.body.shopId;

    if (!shopId) {
      return res.json({
        code: 400,
        message: '参数错误',
      });
    }
    const shop = _.find(req.session.USER.shops, s => s.shopsId === shopId);

    if (!shop) {
      return res.json({
        code: 400,
        message: '不存在的店铺',
      });
    }
    this.userService
      .switchShop({
        shopId,
        cookies: {
          PHPSESSID: encodeURIComponent(req.cookies.PHPSESSID),
          'connect.sid': encodeURIComponent(req.cookies['connect.sid']),
        },
      })
      .then(response => {
        this.syncShopSession(
          {
            req,
            res,
          },
          response
        );
        return res.json({
          code: 200,
        });
      });
  }
  syncSession(context, user, sess, currentShop, needUpdate) {
    delete context.req.session.isCaptcha;
    context.res.clearCookie('_captcha');
    context.req.session.USER = user;
    context.req.session.LOGIN_UID = user.pid; // pid 为用户名
    context.req.session.needUpdate = needUpdate;

    this.syncShopSession(context, sess);
    context.res.cookie('_isLogin', true, {
      path: '/',
    });
    context.res.cookie('_sign', currentShop.shopsId, {
      path: '/',
    });
  }
  syncShopSession(context, sess) {
    _.each(sess, (v, k) => {
      context.res.cookie(k, v, {
        path: '/',
        domain: '.yohobuy.com',
        httpOnly: true,
        encode: val => val,
      });
    });
  }
}

module.exports = UserController;