import { defineConfig } from 'vite'
import { configDefaults } from 'vitest/config'
import solidPlugin from 'vite-plugin-solid'
import path from 'path'
import fs from 'fs'
import tailwindcss from '@tailwindcss/vite'

function readJson(filePath) {
  try {
    return JSON.parse(fs.readFileSync(filePath, 'utf8'));
  } catch {
    return null;
  }
}

const keetPkg = readJson(path.resolve(__dirname, 'package.json'));
const npmParakeetPkg = readJson(path.resolve(__dirname, 'node_modules/parakeet.js/package.json'));

const npmVersion = npmParakeetPkg?.version;
const parakeetVersion = npmVersion || 'unknown';
const parakeetSource = 'npm';

const onnxVersion =
  keetPkg?.dependencies?.['onnxruntime-web'] ||
  npmParakeetPkg?.dependencies?.['onnxruntime-web'] ||
  'unknown';

console.log('Using NPM parakeet.js (v' + (npmVersion || '?') + ')');

// Optional HTTPS setup
let httpsConfig = false;
try {
  const keyPath = path.resolve('./localhost-key.pem');
  const certPath = path.resolve('./localhost.pem');

  if (fs.existsSync(keyPath) && fs.existsSync(certPath)) {
    httpsConfig = {
      key: fs.readFileSync(keyPath),
      cert: fs.readFileSync(certPath),
    };
    console.log('✅ HTTPS enabled with local certificates');
  }
} catch (err) {
  httpsConfig = false;
}

// GitHub Pages project site is served at /keet/; set BASE_PATH in CI
const base = process.env.BASE_PATH || '/';

export default defineConfig({
  base,
  plugins: [
    tailwindcss(),
    solidPlugin()
  ],
  server: {
    port: 3100,
    host: '0.0.0.0',
    headers: {
      'Cross-Origin-Embedder-Policy': 'require-corp',
      'Cross-Origin-Opener-Policy': 'same-origin',
    },
    ...(httpsConfig && { https: httpsConfig }),
  },
  build: {
    target: 'esnext',
    rollupOptions: {
      output: {
        assetFileNames: (assetInfo) => {
          if (assetInfo.name === 'audio-processor.js') {
            return 'assets/[name]-[hash][extname]';
          }
          return 'assets/[name]-[hash][extname]';
        },
      },
    },
  },
  optimizeDeps: {
    // Keep these ESM libs out of Vite's dev pre-bundler to avoid
    // intermittent missing-chunk warnings in node_modules/.vite/deps.
    exclude: [
      'audio-processor.js',
      'parakeet.js',
      'wink-nlp',
      'wink-eng-lite-web-model',
    ],
  },
  worker: {
    format: 'es',
  },
  define: {
    __PARAKEET_VERSION__: JSON.stringify(parakeetVersion),
    __PARAKEET_SOURCE__: JSON.stringify(parakeetSource),
    __ONNXRUNTIME_VERSION__: JSON.stringify(onnxVersion),
  },
  resolve: {
    alias: {
      '@': path.resolve(__dirname, './src'),
    },
  },
  test: {
    globals: true,
    environment: 'happy-dom',
    pool: 'forks',
    include: ['src/**/*.{test,spec}.{ts,tsx}'],
    exclude: [...configDefaults.exclude],
    deps: {
      optimizer: {
        web: {
          include: ['@vitest/web-worker'],
        },
      },
    },
  },
})