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

// Get version from environment, git tag, or package.json
function getVersion(): string {
  // 1. Environment variable (set by GitHub Actions)
  if (process.env.VERSION) {
    return process.env.VERSION;
  }

  // 2. Try git tag
  try {
    const gitTag = execSync('git describe --tags --exact-match 2>/dev/null || git describe --tags 2>/dev/null || echo ""', { encoding: 'utf8' }).trim();
    if (gitTag) {
      return gitTag;
    }
  } catch {
    // Git not available or no tags
  }

  // 3. Fall back to package.json version
  try {
    const pkg = JSON.parse(
      fs.readFileSync(path.resolve(import.meta.dirname, 'package.json'), 'utf8')
    );
    if (pkg.version && pkg.version !== '0.0.0') {
      return pkg.version;
    }
  } catch {
    // package.json not readable
  }

  return 'dev';
}

// https://vitejs.dev/config/
export default defineConfig(({ command }) => ({
  base: command === 'build' ? '/management-assets/' : '/',
  plugins: [react()],
  define: {
    __APP_VERSION__: JSON.stringify(getVersion())
  },
  resolve: {
    alias: {
      '@': path.resolve(import.meta.dirname, './src')
    }
  },
  server: {
    host: '127.0.0.1',
    proxy: {
      '/v0': {
        target: 'http://127.0.0.1:8317',
        changeOrigin: true
      }
    }
  },
  build: {
    target: 'es2020',
    outDir: 'dist'
  }
}));