import { createClient } from '@supabase/supabase-js';

// Function to create a supabase client that doesn't fail build if env vars are missing
const createSupabaseClient = () => {
  // For Coolify docker deployment with build args
  const supabaseUrl = process.env.NEXT_PUBLIC_SUPABASE_URL;
  const supabaseAnonKey = process.env.NEXT_PUBLIC_SUPABASE_ANON_KEY;
  
  // Skip errors during build
  if (typeof window === 'undefined') {
    if (!supabaseUrl || !supabaseAnonKey) {
      // During build/SSR, return null client - this prevents build errors
      console.log('Building without Supabase credentials. Will connect at runtime if available.');
      return null;
    }
  } else {
    // In browser, log helpful messages but don't block rendering
    if (!supabaseUrl) {
      console.warn('Warning: Missing Supabase URL. Please configure NEXT_PUBLIC_SUPABASE_URL.');
    }
    if (!supabaseAnonKey) {
      console.warn('Warning: Missing Supabase Anon Key. Please configure NEXT_PUBLIC_SUPABASE_ANON_KEY.');
    }
  }

  // Only create client if we have credentials
  if (supabaseUrl && supabaseAnonKey) {
    try {
      return createClient(supabaseUrl, supabaseAnonKey);
    } catch (error) {
      console.error('Error initializing Supabase client:', error);
      return null;
    }
  }
  
  return null;
};

// Create the client (can be null during build or if credentials missing)
export const supabase = createSupabaseClient();

// Helper function for components to safely use supabase
export const safeQuery = async (queryFn) => {
  if (!supabase) {
    console.warn('Supabase client not available. Check your environment variables.');
    return { data: null, error: { message: 'Database connection not available' } };
  }
  
  try {
    return await queryFn(supabase);
  } catch (error) {
    console.error('Error in Supabase query:', error);
    return { data: null, error: { message: 'Error connecting to database' } };
  }
};