import { normalizeApiUrl, getAuthToken, createApiHeaders } from './api-utils';

/**
 * Simple client-side fetch function for making API calls with Authorization header.
 * Ensures all requests go through the Next.js API proxy.
 */
export async function clientFetch<T = any>(url: string, options: RequestInit = {}): Promise<T> {
  try {
    // Create headers with authentication
    const headers = createApiHeaders(null, options.headers as Record<string, string>);

    // Normalize URL to ensure it uses the Next.js API proxy  
    const fullUrl = normalizeApiUrl(url);
    
    const res = await fetch(fullUrl, {
      ...options,
      headers,
      credentials: 'include',
    });

    if (!res.ok) {
      const errorData = await res.json().catch(() => ({}));
      const errorMessage = errorData.message || errorData.error || `Request failed: ${res.status} ${res.statusText}`;
      console.error('API Error:', {
        status: res.status,
        url: fullUrl,
        response: errorData,
        method: options.method || 'GET'
      });
      throw new Error(errorMessage);
    }

    // Handle 204 No Content responses
    if (res.status === 204) {
      return {} as T;
    }

    return await res.json();
  } catch (error) {
    console.error(`Client fetch error at ${url}:`, error);
    throw error;
  }
}

/**
 * Get a cookie value by name
 */
export function getCookie(name: string): string | undefined {
  return document.cookie
    .split('; ')
    .find(row => row.startsWith(`${name}=`))
    ?.split('=')[1];
}