#!/usr/bin/env node

/**
 * NUPST npm wrapper
 * This script executes the appropriate pre-compiled binary based on the current platform
 */

import { spawn } from 'child_process';
import { fileURLToPath } from 'url';
import { dirname, join } from 'path';
import { existsSync } from 'fs';
import { platform, arch } from 'os';

const __filename = fileURLToPath(import.meta.url);
const __dirname = dirname(__filename);

/**
 * Get the binary name for the current platform
 */
function getBinaryName() {
  const plat = platform();
  const architecture = arch();

  // Map Node's platform/arch to our binary naming
  const platformMap = {
    'darwin': 'macos',
    'linux': 'linux',
    'win32': 'windows'
  };

  const archMap = {
    'x64': 'x64',
    'arm64': 'arm64'
  };

  const mappedPlatform = platformMap[plat];
  const mappedArch = archMap[architecture];

  if (!mappedPlatform || !mappedArch) {
    console.error(`Error: Unsupported platform/architecture: ${plat}/${architecture}`);
    console.error('Supported platforms: Linux, macOS, Windows');
    console.error('Supported architectures: x64, arm64');
    process.exit(1);
  }

  // Construct binary name
  let binaryName = `nupst-${mappedPlatform}-${mappedArch}`;
  if (plat === 'win32') {
    binaryName += '.exe';
  }

  return binaryName;
}

/**
 * Execute the binary
 */
function executeBinary() {
  const binaryName = getBinaryName();
  const binaryPath = join(__dirname, '..', 'dist', 'binaries', binaryName);

  // Check if binary exists
  if (!existsSync(binaryPath)) {
    console.error(`Error: Binary not found at ${binaryPath}`);
    console.error('This might happen if:');
    console.error('1. The postinstall script failed to run');
    console.error('2. The platform is not supported');
    console.error('3. The package was not installed correctly');
    console.error('');
    console.error('Try reinstalling the package:');
    console.error('  npm uninstall -g @serve.zone/nupst');
    console.error('  npm install -g @serve.zone/nupst');
    process.exit(1);
  }

  // Spawn the binary with all arguments passed through
  const child = spawn(binaryPath, process.argv.slice(2), {
    stdio: 'inherit',
    shell: false
  });

  // Handle child process events
  child.on('error', (err) => {
    console.error(`Error executing nupst: ${err.message}`);
    process.exit(1);
  });

  child.on('exit', (code, signal) => {
    if (signal) {
      process.kill(process.pid, signal);
    } else {
      process.exit(code || 0);
    }
  });

  // Forward signals to child process
  const signals = ['SIGINT', 'SIGTERM', 'SIGHUP'];
  signals.forEach(signal => {
    process.on(signal, () => {
      if (!child.killed) {
        child.kill(signal);
      }
    });
  });
}

// Execute
executeBinary();