<?php
/**
 * Giving Tuesday Click Tracker
 * Replaces: gt.cfm
 *
 * Tracks clicks on theater websites from the givingtuesday table, increments counter, and redirects.
 */
require_once __DIR__ . '/db/mysql_bootstrap.php';

header('Access-Control-Allow-Origin: *');
header('Access-Control-Allow-Methods: GET, POST');
header('Access-Control-Allow-Headers: Content-Type');

$id = $_GET['id'] ?? '';

if (!is_numeric($id)) {
    echo 'Invalid Request: Missing or invalid ID parameter.';
    exit;
}

$id = (int)$id;

$db = new PDO(
    'mysql:host=amazonaurora.cluster-cemzxojvmybt.us-east-1.rds.amazonaws.com;dbname=amazonrds;charset=utf8mb4',
    'admin',
    'xxatN6Lb8Kbwb9MiU1At',
    mysqlPdoOptions([PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION, PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC, PDO::ATTR_EMULATE_PREPARES => false])
);

$stmt = $db->prepare("SELECT theater_website, clicks FROM alandev.givingtuesday WHERE id = ?");
$stmt->execute([$id]);
$row = $stmt->fetch();

if (!$row) {
    echo "Invalid Request: Record not found for ID $id.";
    exit;
}

$theaterWebsite = $row['theater_website'];
$clicks = $row['clicks'];

// Add https:// if missing
if (stripos($theaterWebsite, 'http://') !== 0 && stripos($theaterWebsite, 'https://') !== 0) {
    $theaterWebsite = 'https://' . $theaterWebsite;
}

// Handle clicks
if ($clicks === null || $clicks === '') {
    $stmt = $db->prepare("UPDATE alandev.givingtuesday SET clicks = 1 WHERE id = ?");
    $stmt->execute([$id]);
} elseif (is_numeric($clicks)) {
    $stmt = $db->prepare("UPDATE alandev.givingtuesday SET clicks = clicks + 1 WHERE id = ?");
    $stmt->execute([$id]);
} else {
    echo 'Error: Invalid value for clicks in database.';
    exit;
}

header('Location: ' . $theaterWebsite);
exit;