/**
 * @Route class decorator
 * Marks a class as a controller with a base path
 */

import type { IRouteOptions } from '../core/smartserve.interfaces.js';
import { setBasePath, normalizePath } from './decorators.metadata.js';
import { ControllerRegistry } from './decorators.registry.js';

/**
 * @Route decorator - marks a class as a route controller
 *
 * @example
 * ```typescript
 * @Route('/api/users')
 * class UserController {
 *   @Get('/:id')
 *   getUser(ctx: IRequestContext) { ... }
 * }
 * ```
 */
export function Route(pathOrOptions?: string | IRouteOptions) {
  return function <TClass extends new (...args: any[]) => any>(
    target: TClass,
    context: ClassDecoratorContext<TClass>
  ): TClass {
    if (context.kind !== 'class') {
      throw new Error('@Route can only decorate classes');
    }

    const path = typeof pathOrOptions === 'string'
      ? pathOrOptions
      : pathOrOptions?.path ?? '';

    // Store base path in metadata
    setBasePath(target, path);

    // Register controller after class initialization
    context.addInitializer(function (this: TClass) {
      ControllerRegistry.registerClass(target);
    });

    return target;
  };
}