import * as qenv from '@push.rocks/qenv';
import * as crypto from 'crypto';
import { SmartRegistry } from '../../ts/classes.smartregistry.js';
import type { IRegistryConfig } from '../../ts/core/interfaces.core.js';

const testQenv = new qenv.Qenv('./', './.nogit');

/**
 * Create a test SmartRegistry instance with OCI, NPM, Maven, and Composer enabled
 */
export async function createTestRegistry(): Promise<SmartRegistry> {
  // Read S3 config from env.json
  const s3AccessKey = await testQenv.getEnvVarOnDemand('S3_ACCESSKEY');
  const s3SecretKey = await testQenv.getEnvVarOnDemand('S3_SECRETKEY');
  const s3Endpoint = await testQenv.getEnvVarOnDemand('S3_ENDPOINT');
  const s3Port = await testQenv.getEnvVarOnDemand('S3_PORT');

  const config: IRegistryConfig = {
    storage: {
      accessKey: s3AccessKey || 'minioadmin',
      accessSecret: s3SecretKey || 'minioadmin',
      endpoint: s3Endpoint || 'localhost',
      port: parseInt(s3Port || '9000', 10),
      useSsl: false,
      region: 'us-east-1',
      bucketName: 'test-registry',
    },
    auth: {
      jwtSecret: 'test-secret-key',
      tokenStore: 'memory',
      npmTokens: {
        enabled: true,
      },
      ociTokens: {
        enabled: true,
        realm: 'https://auth.example.com/token',
        service: 'test-registry',
      },
    },
    oci: {
      enabled: true,
      basePath: '/oci',
    },
    npm: {
      enabled: true,
      basePath: '/npm',
    },
    maven: {
      enabled: true,
      basePath: '/maven',
    },
    composer: {
      enabled: true,
      basePath: '/composer',
    },
    cargo: {
      enabled: true,
      basePath: '/cargo',
    },
  };

  const registry = new SmartRegistry(config);
  await registry.init();

  return registry;
}

/**
 * Helper to create test authentication tokens
 */
export async function createTestTokens(registry: SmartRegistry) {
  const authManager = registry.getAuthManager();

  // Authenticate and create tokens
  const userId = await authManager.authenticate({
    username: 'testuser',
    password: 'testpass',
  });

  if (!userId) {
    throw new Error('Failed to authenticate test user');
  }

  // Create NPM token
  const npmToken = await authManager.createNpmToken(userId, false);

  // Create OCI token with full access
  const ociToken = await authManager.createOciToken(
    userId,
    ['oci:repository:*:*'],
    3600
  );

  // Create Maven token with full access
  const mavenToken = await authManager.createMavenToken(userId, false);

  // Create Composer token with full access
  const composerToken = await authManager.createComposerToken(userId, false);

  // Create Cargo token with full access
  const cargoToken = await authManager.createCargoToken(userId, false);

  return { npmToken, ociToken, mavenToken, composerToken, cargoToken, userId };
}

/**
 * Helper to calculate SHA-256 digest in OCI format
 */
export function calculateDigest(data: Buffer): string {
  const hash = crypto.createHash('sha256').update(data).digest('hex');
  return `sha256:${hash}`;
}

/**
 * Helper to create a minimal valid OCI manifest
 */
export function createTestManifest(configDigest: string, layerDigest: string) {
  return {
    schemaVersion: 2,
    mediaType: 'application/vnd.oci.image.manifest.v1+json',
    config: {
      mediaType: 'application/vnd.oci.image.config.v1+json',
      size: 123,
      digest: configDigest,
    },
    layers: [
      {
        mediaType: 'application/vnd.oci.image.layer.v1.tar+gzip',
        size: 456,
        digest: layerDigest,
      },
    ],
  };
}

/**
 * Helper to create a minimal valid NPM packument
 */
export function createTestPackument(packageName: string, version: string, tarballData: Buffer) {
  const shasum = crypto.createHash('sha1').update(tarballData).digest('hex');
  const integrity = `sha512-${crypto.createHash('sha512').update(tarballData).digest('base64')}`;

  return {
    name: packageName,
    versions: {
      [version]: {
        name: packageName,
        version: version,
        description: 'Test package',
        main: 'index.js',
        scripts: {},
        dist: {
          shasum: shasum,
          integrity: integrity,
          tarball: `http://localhost:5000/npm/${packageName}/-/${packageName}-${version}.tgz`,
        },
      },
    },
    'dist-tags': {
      latest: version,
    },
    _attachments: {
      [`${packageName}-${version}.tgz`]: {
        content_type: 'application/octet-stream',
        data: tarballData.toString('base64'),
        length: tarballData.length,
      },
    },
  };
}

/**
 * Helper to create a minimal valid Maven POM file
 */
export function createTestPom(
  groupId: string,
  artifactId: string,
  version: string,
  packaging: string = 'jar'
): string {
  return `<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
         http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>${groupId}</groupId>
  <artifactId>${artifactId}</artifactId>
  <version>${version}</version>
  <packaging>${packaging}</packaging>
  <name>${artifactId}</name>
  <description>Test Maven artifact</description>
</project>`;
}

/**
 * Helper to create a test JAR file (minimal ZIP with manifest)
 */
export function createTestJar(): Buffer {
  // Create a simple JAR structure (just a manifest)
  // In practice, this is a ZIP file with at least META-INF/MANIFEST.MF
  const manifestContent = `Manifest-Version: 1.0
Created-By: SmartRegistry Test
`;

  // For testing, we'll just create a buffer with dummy content
  // Real JAR would be a proper ZIP archive
  return Buffer.from(manifestContent, 'utf-8');
}

/**
 * Helper to calculate Maven checksums
 */
export function calculateMavenChecksums(data: Buffer) {
  return {
    md5: crypto.createHash('md5').update(data).digest('hex'),
    sha1: crypto.createHash('sha1').update(data).digest('hex'),
    sha256: crypto.createHash('sha256').update(data).digest('hex'),
    sha512: crypto.createHash('sha512').update(data).digest('hex'),
  };
}

/**
 * Helper to create a Composer package ZIP
 */
export async function createComposerZip(
  vendorPackage: string,
  version: string,
  options?: {
    description?: string;
    license?: string[];
    authors?: Array<{ name: string; email?: string }>;
  }
): Promise<Buffer> {
  const AdmZip = (await import('adm-zip')).default;
  const zip = new AdmZip();

  const composerJson = {
    name: vendorPackage,
    version: version,
    type: 'library',
    description: options?.description || 'Test Composer package',
    license: options?.license || ['MIT'],
    authors: options?.authors || [{ name: 'Test Author', email: 'test@example.com' }],
    require: {
      php: '>=7.4',
    },
    autoload: {
      'psr-4': {
        'Vendor\\TestPackage\\': 'src/',
      },
    },
  };

  // Add composer.json
  zip.addFile('composer.json', Buffer.from(JSON.stringify(composerJson, null, 2), 'utf-8'));

  // Add a test PHP file
  const [vendor, pkg] = vendorPackage.split('/');
  const namespace = `${vendor.charAt(0).toUpperCase() + vendor.slice(1)}\\${pkg.charAt(0).toUpperCase() + pkg.slice(1).replace(/-/g, '')}`;
  const testPhpContent = `<?php
namespace ${namespace};

class TestClass
{
    public function greet(): string
    {
        return "Hello from ${vendorPackage}!";
    }
}
`;

  zip.addFile('src/TestClass.php', Buffer.from(testPhpContent, 'utf-8'));

  // Add README
  zip.addFile('README.md', Buffer.from(`# ${vendorPackage}\n\nTest package`, 'utf-8'));

  return zip.toBuffer();
}