const Koa = require('koa');
const...
const app = new Koa();

// 配置控制台日志中间件
app.use(convert(koaLogger()));

// 使用ctx.body解析中间件
app.use(bodyParser());

// 配置服务端模板渲染引擎中间件
app.use(views(path.join(__dirname, './view'), {
    extension: 'ejs'
}));

// 配置静态资源加载中间件
app.use(convert(koaStatic(
    path.join(__dirname , './static')
)))

mongoose.Promise = global.Promise;
mongoose.connect(config.database);

// 初始化路由中间件
app.use(routers.routes()).use(routers.allowedMethods())

app.listen(3003);
console.log('The server is on prot 3003')

module.exports = {
    'secrect': 'linwalkernodelogindemo', //暂未用到，用于后期token验证
    'database': 'mongodb://localhost:27017/node-login'//填写本地 mongodb 连接地址
};

const mongoose = require('mongoose');
const Schema = mongoose.Schema
const UserSchema = new Schema({
    username: {
        type: String,
        unique: true,
        require: true
    },
    password: {
        type: String,
        require: true
    },
    email: {
        type: String,
    }
});

module.exports = mongoose.model('User', UserSchema);

const router = require('koa-router')();
const home = require('./home');
const main = require('./main');
const editor = require('./editor');

router.use('/home', home.routes(), home.allowedMethods());
router.use('/main', main.routes(), main.allowedMethods());
router.use('/editor', editor.routes(), editor.allowedMethods());

module.exports = router;

const router = require('koa-router')();
const userInfoController = require('./../controller/user-info');

const routers = router
    .get('/', async (ctx) => {
        const title = 'login home';
        await ctx.render('home', {
            title
        })
    })
    .post('/signup', userInfoController.signUp)
    .post('/signin', userInfoController.signIn)

module.exports = routers;

const User = require('./../models/user');

module.exports = {
    async signUp (ctx) {
    	...
    },

    async signIn (ctx) {
        let result = {
            success: false,
            message: '用户不存在'
        };
        //从请求体中获得参数
        const { username,  password } = ctx.request.body;
        //检查数据库中是否存在该用户名
        await User.findOne({
            username
        }, (err, user) => {
            if (err) {
                throw err;
            }
            if (!user) {
                ctx.body = result;
            } else {
                //判断密码是否正确
                if (password === user.password) {
                    ctx.body = {success: true, message: '登入成功'}
                } else {
                    ctx.body = {success: false, message: '密码错误'}
                }
            }
        })
    }
}

class LoginTab extends React.Component {
    handleSubmit = async(e) => {
        e.preventDefault();
        let values = await this.getFormValues();
        if (values) {
            fetch('/home/signin', {
                method: 'POST',
                headers: {
                    'Content-Type': 'application/json; charset=utf-8'
                },
                body: JSON.stringify(values)
            }).then(res => {
                res.json().then(res => {
                    Message.info(res.message);
                    if (res.success) {
                        location.href = '/main';
                    }
                })
            })
        }
    }
    getFormValues() {
        let self = this;
        return new Promise((resolve, reject) => {
            self.props.form.validateFields((err, values) => {
                if (!err) {
                    resolve( values );
                } else {
                    reject( false );
                }
            })
        })
    }
    render() {
        const { getFieldDecorator } = this.props.form;
        return (
            <div style={{ width: "280px", margin: "0 auto" }}>
                <Form onSubmit={this.handleSubmit}>
                              ...      
                </Form>
            </div>
        )
    }
}
export default Form.create()(LoginTab);