/**
 * 注册
 *
 * @author Bi Kai<kai.bi@yoho.cn>
 * @date 2016/06/23
 */

'use strict';

const _ = require('lodash');
const helpers = global.yoho.helpers;
const sign = global.yoho.sign;
const cookie = global.yoho.cookie;
const RegService = require('../models/reg-service');
const AuthHelper = require('../models/auth-helper');

const reg = {
    index: (req, res) => {
        // 设置注册有效时间30分钟, 防机器刷
        req.session._REG_EXPIRE = Date.now() + 1800000;

        let refer = req.query.refer;

        refer && res.cookie('refer', encodeURI(refer), {
            domain: 'yohobuy.com'
        });

        res.render('reg/index', {
            title: '注册',
            backUrl: 'javascript:history.go(-1)', // eslint-disable-line
            headerText: '注册', // 头部信息
            isPassportPage: true, // 模板中模块标识
            areaCode: '+86', // 默认的区号
            countrys: RegService.getAreaData() // 地区信息列表
        });
    },
    verifyMobile: (req, res, next) => {
        let data = {
            code: 400,
            message: '手机号已存在',
            data: ''
        };

        let mobile = +req.body.phoneNum;
        let area = +(req.body.areaCode || 86);

        /* 判断参数是否合法 */
        if (!_.isNumber(mobile) || !_.isNumber(area)) {
            data.message = '手机号错误';
            return res.json(data);
        }

        /* 设置注册有效时间30分钟, 防机器刷 */
        let expire = req.session._REG_EXPIRE;

        if (!expire || expire < Date.now()) {
            data.message = '非法请求';
            return res.json(data);
        }

        /* 向手机发送注册验证码 */
        RegService.sendCodeToMobile(area, mobile).then((result) => {
            if (!result.code) {
                return res.json(data);
            }

            /* 返回跳转到验证页面的链接 */
            if (result.code === 200) {
                let token = sign.makeToken(mobile);

                result.data = helpers.urlFormat('/passport/reg/code', {
                    token: token,
                    phoneNum: mobile,
                    areaCode: area
                });
            }

            return res.json(result);
        }).catch(next);
    },
    code: (req, res, next) => {
        let token = req.query.token;
        let mobile = +req.query.phoneNum;
        let area = +(req.query.areaCode || 86);

        // 判断是否允许访问, 不允许则跳转到错误页面
        if (!_.isString(token) || !_.isNumber(mobile) || !sign.verifyToken(mobile, token)) {
            return next({
                code: 403,
                message: 'error token or mobile'
            });
        }

        res.render('reg/code', {
            page: 'code',
            title: '注册-验证码',
            backUrl: '/?go=1', // eslint-disable-line
            headerText: '注册', // 头部信息
            isPassportPage: true, // 模板中模块标识
            areaCode: area, // 默认的区号
            phoneNum: mobile, // 手机号
            token: token, // 访问令牌
            serviceUrl: 'http://chat8.live800.com/live800/chatClient/chatbox.jsp?companyID=620092&configID=149091&jid=8732423409&info=' // 在线客服
        });
    },
    sendCode: (req, res, next) => {
        let data = {
            code: 400,
            message: '发送验证码失败',
            data: ''
        };

        let mobile = +req.body.phoneNum;
        let area = +(req.body.areaCode || 86);

        /* 判断参数是否合法 */
        if (!_.isNumber(mobile) || !_.isNumber(area)) {
            data.message = '手机号错误';
            return res.json(data);
        }

        /* 设置注册有效时间30分钟, 防机器刷 */
        let expire = req.session._REG_EXPIRE;

        if (!expire || expire < Date.now()) {
            data.message = '非法请求';
            return res.json(data);
        }

        /* 向手机发送注册验证码 */
        RegService.sendCodeToMobile(area, mobile).then((result) => {
            return result.code ? res.json(result) : res.json(data);
        }).catch(next);
    },
    verifyCode: (req, res, next) => {
        let data = {
            code: 400,
            message: '验证码错误',
            data: ''
        };

        let mobile = +req.body.phoneNum;
        let area = +(req.body.areaCode || 86);
        let code = +req.body.code;

        /* 判断参数是否合法 */
        if (!_.isNumber(mobile) || !_.isNumber(area) || !_.isNumber(code)) {
            data.message = '手机号错误';
            return res.json(data);
        }

        /* 设置注册有效时间30分钟, 防机器刷 */
        let expire = req.session._REG_EXPIRE;

        if (!expire || expire < Date.now()) {
            data.message = '非法请求';
            return res.json(data);
        }

        /* 验证注册的标识码是否有效 */
        RegService.validMobileCode(area, mobile, code).then((result) => {
            if (!result.code) {
                return res.json(data);
            }

            /* 返回跳转到设置密码的链接 */
            if (result.code === 200) {
                let token = sign.makeToken(mobile);

                result.data = helpers.urlFormat('/passport/reg/password', {
                    token: token,
                    phoneNum: mobile,
                    areaCode: area
                });
            } else if (result.code === 404) {
                result.message = '验证码错误'; // 统一验证提示
            }

            return res.json(result);
        }).catch(next);
    },
    password: (req, res, next) => {
        let token = req.query.token;
        let mobile = +req.query.phoneNum;
        let area = +(req.query.areaCode || 86);

        // 判断是否允许访问, 不允许则跳转到错误页面
        if (!_.isString(token) || !_.isNumber(mobile) || !_.isNumber(area) || !sign.verifyToken(mobile, token)) {
            return next({
                code: 403,
                message: 'error token or mobile'
            });
        }

        res.render('reg/password', {
            page: 'password',
            title: '注册-设置密码',
            backUrl: '/?go=1', // eslint-disable-line
            headerText: '注册', // 头部信息
            isPassportPage: true, // 模板中模块标识
            areaCode: area, // 默认的区号
            phoneNum: mobile, // 手机号
            token: token // 访问令牌
        });
    },
    setPassword: (req, res, next) => {
        let data = {
            code: 400,
            message: '密码格式不正确',
            data: ''
        };

        let mobile = +req.body.phoneNum;
        let area = +(req.body.areaCode || 86);
        let password = req.body.password;
        let token = req.body.token;

        /* 判断参数是否合法 */
        if (!_.isString(token) || !_.isNumber(mobile) || !_.isNumber(area) || !password) {
            data.message = '请求参数不合法';
            return res.json(data);
        }

        /* 判断是否允许访问 */
        if (!sign.verifyToken(mobile, token)) {
            data.message = '非法 token';
            return res.json(data);
        }

        /* 判断密码是否符合规则 */
        if (!helpers.verifyPassword(password)) {
            return res.json(data);
        }

        // 购物车key
        let shoppingKey = cookie.getShoppingKey(req);

        // 验证注册的标识码是否有效
        RegService.regMobile(area, mobile, password, shoppingKey).then((result) => {
            if (!result.code || result.code !== 200) {
                return Promise.reject(result);
            }
            if (!result.data || !result.data.uid) {
                return Promise.reject(result);
            }

            return AuthHelper.syncUserSession(result.data.uid, req, res);
        }).then(() => {
            // 返回跳转到来源页面
            let refer = req.cookies.refer;

            if (refer) {
                refer = decodeURI(req.cookies.refer);
            } else {
                refer = '/home';
            }

            if (/sign|login/.test(refer)) {
                refer = '/home';
            }

            return res.json({
                code: 200,
                message: '注册成功',
                data: {
                    session: refer,
                    href: refer
                }
            });
        }).catch(next);
    }
};

module.exports = reg;