/**
 * 用户controller
 * @author: shuiling.wang<shuiling.wang@yoho.cn>
 * @date: 2017/10/17
 */
const Context = require('../framework/context');
const Geetest = require('gt3-sdk');
const logger = global.yoho.logger;

let pcGeetest = new Geetest({
    geetest_id: '4bf7f911856073c1347247667790e7c4',
    geetest_key: '8d41283971d071216f1cef3d190d6b44'
});

class GeeCaptchaController extends Context {
    constructor() {
        super();
    }
    captcha(req, res) {
        return pcGeetest.register({
            client_type: 'web'
        }, function(err, data) {
            if (err) {
                logger.error(err);
                return res.json({code: 500});
            }

            if (!data.success) {
                req.session.fallback = true;
                return res.json({
                    code: 501,
                    data: data
                });
            } else {
                // 正常模式
                req.session.fallback = false;
                return res.send({
                    code: 200,
                    data: data
                });
            }
        });
    }

    check(req, res, next) {
        let verifyCode = req.body.captcha || '';

        if (!verifyCode) {
            return res.send({
                code: 405,
                message: '请将图形验证码拖动至正确位置'
            });
        }

        pcGeetest.validate(req.session.fallback, {
            geetest_challenge: verifyCode[0],
            geetest_validate: verifyCode[1],
            geetest_seccode: verifyCode[2]
        }, function(err, success) {
            // logger.info(`geetest captcha auth [${err ? 'fail' : 'success'}]`,
            //     `CLIENT [${req.body.verifyCode}] SERVER [${err}]`);

            if (err) {
                return res.send({
                    message: '网络错误',
                    code: 405
                });
            } else if (!success) {
                return res.send({
                    message: '图形验证失败',
                    code: 405
                });
            } else {
                return next();
            }
        });
    }
}

module.exports = GeeCaptchaController;