<?php
session_start();
require_once dirname(__DIR__) . '/config/config.php';
require_once dirname(__DIR__) . '/models/TemplateModel.php';

header('Content-Type: application/json');

// Check authentication
if (!isset($_SESSION['user']) || !isset($_SESSION['user']['user_id'])) {
    echo json_encode(['success' => false, 'error' => 'Not authenticated']);
    exit;
}

// Get template ID from query parameter
$templateId = $_GET['template_id'] ?? null;

if (!$templateId || !is_numeric($templateId)) {
    echo json_encode(['success' => false, 'error' => 'Valid template ID required']);
    exit;
}

// Cast to integer for safety
$templateId = (int)$templateId;

// Create database connection
$conn = new mysqli(
    $GLOBALS['config']['DB_HOST'],
    $GLOBALS['config']['DB_USER'],
    $GLOBALS['config']['DB_PASS'],
    $GLOBALS['config']['DB_NAME']
);

if ($conn->connect_error) {
    echo json_encode(['success' => false, 'error' => 'Database connection failed']);
    exit;
}

// Get template
$templateModel = new TemplateModel($conn);
$template = $templateModel->getTemplateById($templateId);

$conn->close();

if ($template) {
    echo json_encode(['success' => true, 'template' => $template]);
} else {
    echo json_encode(['success' => false, 'error' => 'Template not found']);
}