import { defineConfig, Plugin } from 'vite';
import react from '@vitejs/plugin-react';
import path from 'path';
import fs from 'fs';

function fixSourceMaps(): Plugin {
  let currentInterval: NodeJS.Timeout | null = null;

  return {
    name: 'fix-source-map',
    enforce: 'post',
    transform(source) {
      if (currentInterval) {
        return source;
      }

      currentInterval = setInterval(() => {
        const nodeModulesPath = path.join(process.cwd(), 'node_modules', '.vite', 'deps');

        if (fs.existsSync(nodeModulesPath)) {
          clearInterval(currentInterval!);
          currentInterval = null;

          const files = fs.readdirSync(nodeModulesPath);
          files.forEach((file) => {
            const mapFile = `${file}.map`;
            const mapPath = path.join(nodeModulesPath, mapFile);

            if (fs.existsSync(mapPath)) {
              let mapData = JSON.parse(fs.readFileSync(mapPath, 'utf8'));

              if (!mapData.sources || mapData.sources.length === 0) {
                mapData.sources = [path.relative(mapPath, path.join(nodeModulesPath, file))];
                fs.writeFileSync(mapPath, JSON.stringify(mapData), 'utf8');
              }
            }
          });
        }
      }, 100);

      return source;
    }
  };
}

export default defineConfig({
  plugins: [
    react(),
    fixSourceMaps() as Plugin // Фикс source maps
  ],
  server: {
    port: 3000,
    proxy: {
      '/api': {
        target: 'https://todou.net',
        changeOrigin: true,
      }
    },
    allowedHosts: ['localhost', 'todou.net']
  },
  resolve: {
    preserveSymlinks: true // Иногда помогает с проблемами путей в Vite
  }
});