#!/usr/bin/env node
/*
 * Copyright 2025 John G Stroh
 *
 * Licensed under the European Union Public Licence, Version 1.2 (EUPL-1.2);
 * you may not use this file except in compliance with the Licence.
 *
 * You may obtain a copy of the Licence at:
 *     https://interoperable-europe.ec.europa.eu/collection/eupl/eupl-text-eupl-12
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the Licence is distributed on an "AS IS" basis,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the Licence for the specific language governing permissions and
 * limitations under the Licence.
 */

// Relicense Apache 2.0 → EUPL-1.2 across Tractatus source files.
// Phase B of PLAN_LICENSE_STANDARDISATION_EUPL12_20260419.
//
// Usage:
//   node scripts/relicense-apache-to-eupl.js            # Apply changes
//   node scripts/relicense-apache-to-eupl.js --dry-run  # Show changes without writing

const fs = require('fs');
const path = require('path');

const DRY_RUN = process.argv.includes('--dry-run');
const REPO_ROOT = path.resolve(__dirname, '..');

// --- Variant 1: Full Apache header block (JS /* ... */) ---
const V1_APACHE = `/*
 * Copyright 2025 John G Stroh
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */`;

const V1_EUPL = `/*
 * Copyright 2025 John G Stroh
 *
 * Licensed under the European Union Public Licence, Version 1.2 (EUPL-1.2);
 * you may not use this file except in compliance with the Licence.
 *
 * You may obtain a copy of the Licence at:
 *     https://interoperable-europe.ec.europa.eu/collection/eupl/eupl-text-eupl-12
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the Licence is distributed on an "AS IS" basis,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the Licence for the specific language governing permissions and
 * limitations under the Licence.
 */`;

// --- Variant 2: Inline JSDoc license lines (inside descriptive block) ---
const V2_APACHE = ` * Copyright 2025 Tractatus Project\n * Licensed under Apache License 2.0`;
const V2_EUPL = ` * Copyright 2025 Tractatus Project\n * Licensed under the European Union Public Licence, v. 1.2 (EUPL-1.2)`;

// --- Variant 3: Python docstring License line ---
const V3_APACHE = `License: Apache 2.0`;
const V3_EUPL = `License: EUPL-1.2`;

// --- Variant 4: al-integration/README.md — bare "Apache 2.0" under "## License" heading ---
const V4_APACHE = `## License\n\nApache 2.0`;
const V4_EUPL = `## License\n\nEUPL-1.2`;

const FILES = [
  // Variant 1 expected — full Apache block (12 JS files)
  'src/routes/audit.routes.js',
  'src/controllers/audit.controller.js',
  'src/services/AdaptiveCommunicationOrchestrator.service.js',
  'src/services/InstructionPersistenceClassifier.service.js',
  'src/services/MetacognitiveVerifier.service.js',
  'src/services/ContextPressureMonitor.service.js',
  'src/services/BoundaryEnforcer.service.js',
  'src/services/CrossReferenceValidator.service.js',
  'src/services/PluralisticDeliberationOrchestrator.service.js',
  'src/utils/attack-surface-validator.util.js',
  'src/utils/activity-classifier.util.js',
  'src/utils/audit-sanitizer.util.js',
  // Variant 2 expected — inline JSDoc license lines (4 JS files)
  'src/routes/calendar.routes.js',
  'src/models/ScheduledTask.model.js',
  'src/models/SyncMetadata.model.js',
  'src/models/MissedBreach.model.js',
  // Variant 3 expected — Python docstring (4 files)
  'al-integration/testing/stress_test.py',
  'al-integration/testing/stress_test_vllm.py',
  'al-integration/training/train_analyzer.py',
  'al-integration/agents/feedback_analyzer.py',
  // Variant 4 expected — al-integration README (1 file)
  'al-integration/README.md',
];

function processFile(relPath) {
  const fullPath = path.join(REPO_ROOT, relPath);
  if (!fs.existsSync(fullPath)) {
    return { status: 'NOT_FOUND', variants: [] };
  }
  let content = fs.readFileSync(fullPath, 'utf8');
  const original = content;
  const variants = [];

  if (content.includes(V1_APACHE)) {
    content = content.replace(V1_APACHE, V1_EUPL);
    variants.push('V1');
  }
  if (content.includes(V2_APACHE)) {
    content = content.replace(V2_APACHE, V2_EUPL);
    variants.push('V2');
  }
  if (content.includes(V3_APACHE)) {
    content = content.replace(V3_APACHE, V3_EUPL);
    variants.push('V3');
  }
  if (content.includes(V4_APACHE)) {
    content = content.replace(V4_APACHE, V4_EUPL);
    variants.push('V4');
  }

  if (content === original) {
    return { status: 'NO_MATCH', variants: [] };
  }

  if (!DRY_RUN) {
    fs.writeFileSync(fullPath, content, 'utf8');
  }
  return { status: 'CHANGED', variants };
}

const results = FILES.map((f) => ({ path: f, ...processFile(f) }));

console.log(`${DRY_RUN ? '[DRY RUN] ' : ''}Relicense Apache 2.0 → EUPL-1.2 — ${FILES.length} files in scope\n`);

const changed = results.filter((r) => r.status === 'CHANGED');
const noMatch = results.filter((r) => r.status === 'NO_MATCH');
const notFound = results.filter((r) => r.status === 'NOT_FOUND');

changed.forEach((r) => console.log(`  CHANGED  [${r.variants.join(',')}] ${r.path}`));
noMatch.forEach((r) => console.log(`  NO_MATCH (check patterns) ${r.path}`));
notFound.forEach((r) => console.log(`  NOT_FOUND ${r.path}`));

console.log(`\nSummary: ${changed.length} changed / ${noMatch.length} no-match / ${notFound.length} not-found (total ${FILES.length}).`);
if (DRY_RUN) {
  console.log('\nDRY-RUN: no files written. Re-run without --dry-run to apply.');
}

process.exit(noMatch.length > 0 || notFound.length > 0 ? 1 : 0);