/**
 * Email Templates Detail API Route Handlers for Next.js
 *
 * These route handlers can be re-exported in your Next.js application to provide
 * individual email template management endpoints at /api/email-templates/[id].
 *
 * Services are auto-initialized on first request using environment variables:
 * - DB_DIALECT: Database dialect ("postgresql" | "mysql" | "sqlite")
 * - DATABASE_URL: Database connection string
 *
 * @example
 * ```typescript
 * // In your Next.js app: app/api/email-templates/[id]/route.ts
 * export { GET, PATCH, DELETE } from 'nextly/api/email-templates-detail';
 * ```
 *
 * @module api/email-templates-detail
 */
interface RouteContext {
    params: Promise<{
        id: string;
    }>;
}
/**
 * GET handler for retrieving a single email template by ID.
 *
 * Requires authentication.
 *
 * Response Codes:
 * - 200 OK: Template retrieved successfully
 * - 401 Unauthorized: Authentication required
 * - 404 Not Found: Template with ID does not exist
 * - 500 Internal Server Error: Failed to fetch template
 *
 * Response: `{ "data": EmailTemplate }`
 */
declare const GET: (request: Request, context: RouteContext) => Promise<Response>;
/**
 * PATCH handler for updating an email template.
 *
 * Requires authentication. Template `slug` cannot be changed after creation.
 *
 * Request Body (all fields optional):
 * - name, subject, htmlContent, plainTextContent, variables, useLayout,
 *   isActive, providerId.
 *
 * Response Codes:
 * - 200 OK: Template updated successfully
 * - 400 Bad Request: Invalid JSON body
 * - 401 Unauthorized: Authentication required
 * - 404 Not Found: Template with ID does not exist
 * - 500 Internal Server Error: Update failed
 *
 * Response: `{ "data": EmailTemplate }`
 */
declare const PATCH: (request: Request, context: RouteContext) => Promise<Response>;
/**
 * DELETE handler for removing an email template.
 *
 * Requires authentication. Cannot delete layout templates (`_email-header`,
 * `_email-footer`); use the layout endpoint to modify them.
 *
 * Response Codes:
 * - 200 OK: Template deleted successfully
 * - 401 Unauthorized: Authentication required
 * - 403 Forbidden: Cannot delete layout templates
 * - 404 Not Found: Template with ID does not exist
 * - 500 Internal Server Error: Deletion failed
 *
 * Response: `{ "data": { "success": true } }`
 */
declare const DELETE: (request: Request, context: RouteContext) => Promise<Response>;

export { DELETE, GET, PATCH };