/**
 * Client HTTP de base pour toutes les requêtes API
 */
export class HttpClient {
  private baseUrl: string;

  constructor(baseUrl: string = '') {
    this.baseUrl = baseUrl;
  }

  private async request<T>(
    endpoint: string,
    options: RequestInit = {}
  ): Promise<T> {
    const url = `${this.baseUrl}${endpoint}`;

    const config: RequestInit = {
      headers: {
        'Content-Type': 'application/json',
        ...options.headers,
      },
      ...options,
    };

    try {
      const response = await fetch(url, config);

      if (!response.ok) {
        const errorData = await response.json().catch(() => ({}));
        throw new Error(
          errorData.error || `HTTP ${response.status}: ${response.statusText}`
        );
      }

      return await response.json();
    } catch (error) {
      console.error(`HTTP Request failed: ${url}`, error);
      throw error;
    }
  }

  async get<T>(endpoint: string, params?: Record<string, string>): Promise<T> {
    const url = params
      ? `${endpoint}?${new URLSearchParams(params)}`
      : endpoint;

    return this.request<T>(url, { method: 'GET' });
  }

  async post<T>(endpoint: string, data?: unknown): Promise<T> {
    return this.request<T>(endpoint, {
      method: 'POST',
      body: data ? JSON.stringify(data) : undefined,
    });
  }

  async put<T>(endpoint: string, data?: unknown): Promise<T> {
    return this.request<T>(endpoint, {
      method: 'PUT',
      body: data ? JSON.stringify(data) : undefined,
    });
  }

  async patch<T>(endpoint: string, data?: unknown): Promise<T> {
    return this.request<T>(endpoint, {
      method: 'PATCH',
      body: data ? JSON.stringify(data) : undefined,
    });
  }

  async delete<T>(
    endpoint: string,
    params?: Record<string, string>
  ): Promise<T> {
    const url = params
      ? `${endpoint}?${new URLSearchParams(params)}`
      : endpoint;

    return this.request<T>(url, { method: 'DELETE' });
  }
}

// Instance par défaut
export const httpClient = new HttpClient('/api');