<?php
session_start();
require_once 'db/config.php';

if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
    header('Location: staff_dashboard.php');
    exit;
}

// Check if user is logged in and has the 'staff' role
if (!isset($_SESSION['user_id']) || $_SESSION['user_role'] !== 'staff') {
    header('HTTP/1.1 403 Forbidden');
    exit("Access denied.");
}

$resident_id = isset($_POST['resident_id']) ? (int)$_POST['resident_id'] : 0;
$status = isset($_POST['status']) ? trim($_POST['status']) : '';

// Basic validation
if ($resident_id === 0 || empty($status)) {
    header("Location: staff_dashboard.php?error=invalid_data");
    exit;
}

// You might want to validate the status against a list of allowed statuses
$allowed_statuses = ['Active', 'Inactive', 'Stabilized'];
if (!in_array($status, $allowed_statuses)) {
    header("Location: resident_view.php?id={$resident_id}&error=invalid_status");
    exit;
}

try {
    $pdo = db();
    $stmt = $pdo->prepare("UPDATE residents SET status = ? WHERE id = ?");
    $stmt->execute([$status, $resident_id]);

    // Redirect back to the resident's view page
    header("Location: resident_view.php?id={$resident_id}&success=status_updated");
    exit;
} catch (PDOException $e) {
    // Log the error in a real app
    header("Location: resident_view.php?id={$resident_id}&error=db_error");
    exit;
}