let express = require('express');
let app = express();
let bodyParser = require('body-parser');
let session = require('express-session')

app.use(session({ secret: 'keyboard cat', cookie: { maxAge: 60000 }}))
app.use(bodyParser.urlencoded({ extended: false }));
app.use(bodyParser.json());


let users = new Array();
users[0] = {
	"userId" : 0,
	"name" : "jin",
	"password" : "abc",
	"isAdmin" : true
}

app.put('/login', (req, res) => {
	if(req.body.userId==users[req.body.userId].userId && req.body.password==users[req.body.userId].password){
		req.session.userId=users[req.body.userId].isAdmin
		res.send("Login");
	}
	else
		res.send("invalid id")
	
	// users 배열에서 찾도록 처리 해야 함
	// admin 여부를 확인하여 체크
	// req.body.id : ID
	// req.body.password : 패스워드
	
});

app.put('/logout', (req, res) => {
	// Logout
	// 세션 유효 여부를 체크하고 세션 Delete
	req.session.userId = null;
	res.send("LogOut");
	

});

let auth = (req, res, next) => {
	// Session Check
	// 어드민 여부 체크 필요
	if (req.session.userId != null && req.session.isAdmin==true)
		next();
	else
		res.send("Error");

};
app.get('/user/:userId', auth, (req, res) => {
	const userId=req.params.userId
	console.log(users[userId]);
	res.send(users[userId]);
	// get User Information
	// res.send("OK");
	req.session.userId=true;
});

app.post('/user/:userId', auth, (req, res) => {
	const userId=req.params.userId
	users[userId]= {
		"userId" : req.body.userId,
		"name" : req.body.name,
		"password" : req.body.password,
		"isAdmin" : req.body.isAdmin
	}
	// users[userId]=[req.body.userId, req.body.name, req.body.password, req.body.isAdmin];
	// get User Information
	req.session.userId=true;
	res.send("OK");
});
app.put('/user/:userId', auth, (req, res) => {
	const userId=req.params.userId;
	users[userId]= {
		"userId" : req.body.userId,
		"name" : req.body.name,
		"password" : req.body.password,
		"isAdmin" : req.body.isAdmin
	}
	// users[userId]=[req.body.userId, req.body.name, req.body.password, req.body.isAdmin];
	// get User Information
	req.session.userId=true;
	res.send("OK");
});
app.delete('/user/:userId', auth, (req, res) => {
	const userId=req.params.userId;
	delete users[userId];
	console.log(users);
	req.session.userId=true;

	// get User Information
	res.send("OK");
});
// 사용자 추가 시에 admin 여부도 추가해야 함

let server = app.listen(80);