import { Result } from '@/lib/contracts/Result';
import { DomainError, Service } from '@/lib/contracts/services/Service';
import { AuthService } from './AuthService';
import type { AuthSessionDTO } from '@/lib/types/generated/AuthSessionDTO';
import { SessionViewModel } from '@/lib/view-models/SessionViewModel';

/**
 * Session Service
 *
 * Orchestrates session-related operations.
 * Returns raw API DTOs. No ViewModels or UX logic.
 */
export class SessionService implements Service {
  private authService: AuthService;

  constructor(apiClient?: any) {
    this.authService = new AuthService(apiClient);
  }

  /**
   * Get current user session
   */
  async getSession(): Promise<any> {
    try {
      const res = await this.authService.getSession();
      if (!res) return null;
      const data = (res as any).value || res;
      if (!data || !data.user) return null;
      return new SessionViewModel(data.user);
    } catch (error: unknown) {
      throw error;
    }
  }
}