<?php
    require('connect.php');

    if(isset($_POST['user']) and isset($_POST['password'])){

        $user = $_POST['user'];
        $id = $_POST['IDNUM'];
        $password = $_POST['password'];

        $conn = mysqli_connect("localhost", "root", "9KSroMDjEqNmEYY4", "chatservice");
        if ($conn->connect_error){
        die("Connection failed: " . $conn->connect_error);
        }
        $query = "INSERT INTO users (user ,idNum ,password) VALUES($user, $id, $password)";
        $result = mysqli_query($conn, $query);
        if($result == true){
            echo "Registered Sussecfully";
            header("Location: http://localhost/CHAT/index.php");
            die();
        }
        else
            echo "Error Registering";
    }
?>

<div class="register-form">
    <title>Welcome to RDB Chat Services</title>
    <form action="" method="post">
        <p>
        <b><font size="6"><u>Welcome to our Chatting Server</u></font>
            <br>
            <br>Enter user credentials and Login or Register for an Account
        </b>
        </p>

        <p>
        <label>Username: </label>
        <input type="text" name="user" placeholder="user" />
        </p>

        <p>
        <label>ID: </label>
        <input  type="text" name="IDNUM" placeholder="ID number" />
        </p>

        <p>
        <label>Password: </label>
        <input type="password" name="password" placeholder="password" />
        </p>

        <a href="login.php">Login</a>
        <input class="btn register" type="submit" value="Register" />
    </form>
</div>

<?php
    require('connect.php');

        if (isset($_REQUEST['user']) and isset($_REQUEST['password'])){

            $username = $_REQUEST['user'];
            $password = $_REQUEST['password'];

            $conn = mysqli_connect("localhost", "root", "9KSroMDjEqNmEYY4", "chatservice");
            $query = "SELECT * FROM `users` WHERE username='$user' and password='$password'";
            $result = mysqli_query($conn,$query) or die(mysqli_error());
            $count = mysqli_num_rows($result);
            echo"checked database";
            if ($count == 1){
                $_SESSION['username'] = $username;
            }
            else{
                echo "Invalid Login Credentials.";
            }
        }

        if (isset($_SESSION['username'])){
            $username = $_SESSION['username'];
            echo"Page redirect to chat service";
            header("Location: http://localhost/CHAT/index.php");
            die();
        }
?>