import { sveltekit } from '@sveltejs/kit/vite';
import { defineConfig } from 'vite';

// Suppress noisy plugin messages about externalized modules
// These are expected for SSR builds and not actual problems
const originalConsoleError = console.error;
const originalConsoleWarn = console.warn;
const originalConsoleLog = console.log;

if (process.env.NODE_ENV === 'production' || process.argv.includes('build')) {
  const shouldSuppress = (message: string): boolean => {
    return (
      message.includes('externalized for browser compatibility') ||
      message.includes('[plugin:vite:resolve]') && message.includes('has been externalized')
    );
  };

  console.error = (...args: any[]) => {
    const message = args.join(' ');
    if (shouldSuppress(message)) {
      return;
    }
    originalConsoleError.apply(console, args);
  };

  console.warn = (...args: any[]) => {
    const message = args.join(' ');
    if (shouldSuppress(message)) {
      return;
    }
    originalConsoleWarn.apply(console, args);
  };

  console.log = (...args: any[]) => {
    const message = args.join(' ');
    if (shouldSuppress(message)) {
      return;
    }
    originalConsoleLog.apply(console, args);
  };
}

export default defineConfig({
  plugins: [sveltekit()],
  build: {
    rollupOptions: {
      onwarn(warning, warn) {
        // Suppress warnings about externalized modules (expected for SSR builds)
        if (
          warning.code === 'MODULE_LEVEL_DIRECTIVE' ||
          (typeof warning.message === 'string' && 
           warning.message.includes('externalized for browser compatibility'))
        ) {
          return;
        }
        // Show other warnings
        warn(warning);
      }
    },
    // Increase chunk size warning limit to reduce noise
    chunkSizeWarningLimit: 2000
  },
  // Reduce log level to suppress INFO messages
  logLevel: 'warn'
});