import { defineConfig, loadEnv } from 'vite';
import react from '@vitejs/plugin-react';

function buildProcessEnv(mode: string, env: Record<string, string>, base: string) {
  const processEnv: Record<string, string> = {
    NODE_ENV: mode === 'production' ? 'production' : mode,
    PUBLIC_URL: base === '/' ? '' : base.replace(/\/$/, ''),
  };

  for (const [key, value] of Object.entries(env)) {
    if (key.startsWith('REACT_APP_')) {
      processEnv[key] = value;
    }
  }

  return processEnv;
}

export default defineConfig(({ mode }) => {
  const env = loadEnv(mode, process.cwd(), '');
  const base = env.PUBLIC_URL ? (env.PUBLIC_URL.endsWith('/') ? env.PUBLIC_URL : `${env.PUBLIC_URL}/`) : '/';
  const processEnv = buildProcessEnv(mode, env, base);

  return {
    base,
    publicDir: 'public',
    plugins: [react()],
    define: {
      'process.env': JSON.stringify(processEnv),
      global: 'globalThis',
    },
    build: {
      outDir: 'build',
      assetsDir: 'static',
      emptyOutDir: true,
      sourcemap: false,
    },
    server: {
      host: '0.0.0.0',
      port: 3100,
      proxy: {
        '/api': {
          target: 'http://127.0.0.1:8082',
          changeOrigin: true,
          secure: false,
        },
      },
    },
    preview: {
      host: '0.0.0.0',
      port: 4174,
    },
    test: {
      environment: 'jsdom',
      globals: true,
    },
  };
});