<?php
// This is a STUB for login processing.
// In a real application, you would validate credentials against a database.

session_start();

$role = $_POST['role'] ?? '';
$username = $_POST['username'] ?? '';

// Basic validation
if (empty($role) || empty($username)) {
    // Redirect back to login with an error
    header('Location: index.php?error=missing_fields');
    exit();
}

// Store user info in session (for demonstration)
$_SESSION['user'] = [
    'username' => $username,
    'role' => $role
];

// Redirect to a role-based dashboard
// This is a placeholder. In a real app, you'd have separate dashboards.
header('Location: dashboard.php');
exit();

?>