// Copyright (c) 2026 Gordon Bolton. MIT License.
/**
 * Creates a versioned tar.gz archive containing the RAML spec,
 * original OpenAPI spec, version metadata, and README.
 */

const fs = require('fs');
const path = require('path');
const { execSync } = require('child_process');
const archiver = require('archiver');

const DIST_DIR = path.join(process.cwd(), 'dist');
const RAML_FILE = path.join(DIST_DIR, 'api.raml');
const OPENAPI_FILE = path.join(DIST_DIR, 'openapi-merged.json');

function getVersion() {
  try {
    // Try to get the exact tag if we're on one
    const tag = execSync('git describe --tags --exact-match 2>/dev/null', { encoding: 'utf-8' }).trim();
    if (tag) return tag;
  } catch (e) {
    // Not on a tag, fall back to SHA
  }

  try {
    // Get short commit SHA
    const sha = execSync('git rev-parse --short HEAD', { encoding: 'utf-8' }).trim();
    return sha;
  } catch (e) {
    // Not in a git repo, use timestamp
    return `dev-${Date.now()}`;
  }
}

function getCommitSha() {
  try {
    return execSync('git rev-parse HEAD', { encoding: 'utf-8' }).trim();
  } catch (e) {
    return 'unknown';
  }
}

function createVersionJson(version, commitSha) {
  return {
    version,
    commit: commitSha,
    generatedAt: new Date().toISOString(),
    tool: 'oas3-to-raml',
    openapiVersion: '3.1.0',
    ramlVersion: '1.0'
  };
}

function createReadme(version, commitSha) {
  return `# sofarr RAML 1.0 Specification

## Origin

This RAML specification was automatically generated from the sofarr OpenAPI 3.1.0 specification.

- **Version:** ${version}
- **Commit:** ${commitSha}
- **Generated At:** ${new Date().toISOString()}
- **Conversion Tool:** oas3-to-raml (npx)

## Contents

- \`api.raml\` - The RAML 1.0 specification
- \`openapi-merged.json\` - Original merged OpenAPI 3.1.0 spec (for reference)
- \`version.json\` - Metadata about this generation

## Known Limitations

This RAML spec was converted from OpenAPI 3.1.0. Some OpenAPI 3.1 features may not translate perfectly to RAML 1.0:

- Cookie-based authentication (CookieAuth) may require manual mapping to RAML security schemes
- Advanced schema features (e.g., certain keywords, complex polymorphism) may be approximated or dropped
- Webhook-specific features may not be fully represented

For the most accurate API documentation, refer to the live Swagger UI at \`/api/swagger\` or the original OpenAPI spec included in this archive.

## Verification Steps

1. Validate the RAML spec:
   \`\`\`bash
   npx raml-1-parser validate api.raml
   \`\`\`

2. Compare endpoints with the live Swagger UI at \`/api/swagger\`

3. Test in a RAML-aware tool (e.g., API Workbench, MuleSoft Anypoint)

## Quick Start

To use this RAML spec:

1. Extract the archive
2. Open \`api.raml\` in your preferred RAML tool
3. For development, import it into API Workbench or similar tools

## Source

This artifact was generated from the sofarr project:
https://git.i3omb.com/Gandalf/sofarr

Generated from CI run on commit ${commitSha}.
`;
}

async function packageRaml() {
  const version = getVersion();
  const commitSha = getCommitSha();
  const archiveName = `raml-${version}`;
  const archivePath = path.join(DIST_DIR, `${archiveName}.tar.gz`);
  const stagingDir = path.join(DIST_DIR, archiveName);

  console.log(`Packaging RAML for version: ${version}`);
  console.log(`Commit: ${commitSha}`);

  // Check that required files exist
  if (!fs.existsSync(RAML_FILE)) {
    throw new Error(`RAML file not found: ${RAML_FILE}`);
  }
  if (!fs.existsSync(OPENAPI_FILE)) {
    throw new Error(`OpenAPI file not found: ${OPENAPI_FILE}`);
  }

  // Create staging directory
  if (fs.existsSync(stagingDir)) {
    fs.rmSync(stagingDir, { recursive: true, force: true });
  }
  fs.mkdirSync(stagingDir, { recursive: true });

  // Copy files to staging directory
  fs.copyFileSync(RAML_FILE, path.join(stagingDir, 'api.raml'));
  fs.copyFileSync(OPENAPI_FILE, path.join(stagingDir, 'openapi-merged.json'));

  // Create version.json
  const versionJson = createVersionJson(version, commitSha);
  fs.writeFileSync(path.join(stagingDir, 'version.json'), JSON.stringify(versionJson, null, 2));

  // Create README.md
  const readme = createReadme(version, commitSha);
  fs.writeFileSync(path.join(stagingDir, 'README.md'), readme);

  // Create tar.gz archive
  console.log(`Creating archive: ${archivePath}`);
  const output = fs.createWriteStream(archivePath);
  const archive = archiver('tar', { gzip: true });

  return new Promise((resolve, reject) => {
    output.on('close', () => {
      console.log(`✓ Archive created: ${archivePath}`);
      console.log(`  Size: ${archive.pointer()} bytes`);
      resolve();
    });

    archive.on('error', (err) => {
      reject(err);
    });

    archive.pipe(output);
    archive.directory(stagingDir, false);
    archive.finalize();
  }).then(() => {
    // Clean up staging directory
    fs.rmSync(stagingDir, { recursive: true, force: true });
  });
}

// Run if executed directly
if (require.main === module) {
  packageRaml()
    .then(() => {
      console.log('RAML packaging complete');
      process.exit(0);
    })
    .catch((error) => {
      console.error('Failed to package RAML:', error);
      process.exit(1);
    });
}

module.exports = { packageRaml };