<?php
include_once('./_common.php');

// AJAX 요청만 처리
if ($_SERVER['REQUEST_METHOD'] !== 'GET') {
    http_response_code(405);
    echo json_encode(['success' => false, 'message' => 'GET 요청만 허용됩니다.']);
    exit;
}

$action = isset($_GET['action']) ? clean_xss_tags($_GET['action']) : '';
$id = (int) ($_GET['id'] ?? 0);

header('Content-Type: application/json; charset=utf-8');

if ($action === 'preview' && $id > 0) {
    $template = sql_fetch("SELECT * FROM order_sms_templates WHERE id = '{$id}'");

    if ($template) {
        // 변수들을 예시 값으로 치환
        $variables = json_decode($template['variables'], true);
        $content = $template['content'];

        if (is_array($variables)) {
            foreach ($variables as $var) {
                $placeholder = '{' . $var . '}';
                $example_value = '[' . $var . ']'; // 예: [customer_name]
                $content = str_replace($placeholder, $example_value, $content);
            }
        }

        echo json_encode([
            'success' => true,
            'data' => [
                'content' => $content,
                'variables' => $template['variables']
            ]
        ], JSON_UNESCAPED_UNICODE);
    } else {
        echo json_encode(['success' => false, 'message' => '템플릿을 찾을 수 없습니다.']);
    }
} else {
    echo json_encode(['success' => false, 'message' => '잘못된 요청입니다.']);
}