#!/usr/bin/env node
/**
 * Import 5 Missing Archives Documents
 *
 * Imports the 5 MD files that are in Archives but not in the database:
 * 1. Case Studies - Real-World LLM Failure Modes
 * 2. Python API Integration Examples
 * 3. Tractatus Framework Enforcement for Claude Code
 * 4. Concurrent Session Architecture Limitations
 * 5. Rule Proliferation and Transactional Overhead
 */

require('dotenv').config();

const fs = require('fs').promises;
const path = require('path');
const { connect, close } = require('../src/utils/db.util');
const Document = require('../src/models/Document.model');
const { markdownToHtml, extractTOC, generateSlug } = require('../src/utils/markdown.util');

const FILES_TO_IMPORT = [
  {
    path: '/home/theflow/projects/tractatus/docs/markdown/case-studies.md',
    slug: 'case-studies-real-world-llm-failure-modes-appendix',
    title: 'Appendix B: Case Studies - Real-World LLM Failure Modes',
    category: 'archives',
    order: 2,
    archiveNote: 'Internal project tracking document. Not relevant for public documentation.'
  },
  {
    path: '/home/theflow/projects/tractatus/docs/api/examples-python.md',
    slug: 'implementation-guide-python-examples',
    title: 'Implementation Guide: Python Code Examples',
    category: 'archives',
    order: 3,
    archiveNote: 'Internal project tracking document. Not relevant for public documentation.'
  },
  {
    path: '/home/theflow/projects/tractatus/docs/claude-code-framework-enforcement.md',
    slug: 'tractatus-framework-enforcement-claude-code',
    title: 'Tractatus Framework Enforcement for Claude Code',
    category: 'archives',
    order: 4,
    archiveNote: 'Development tool documentation. See Implementation Guide for production deployment.'
  },
  {
    path: '/home/theflow/projects/tractatus/docs/research/concurrent-session-architecture-limitations.md',
    slug: 'research-topic-concurrent-session-architecture',
    title: 'Research Topic: Concurrent Session Architecture Limitations in Claude Code Governance',
    category: 'archives',
    order: 5,
    archiveNote: 'Research analysis. See Architectural Overview for current framework status.'
  },
  {
    path: '/home/theflow/projects/tractatus/docs/research/rule-proliferation-and-transactional-overhead.md',
    slug: 'research-topic-rule-proliferation-transactional-overhead',
    title: 'Research Topic: Rule Proliferation and Transactional Overhead in AI Governance',
    category: 'archives',
    order: 6,
    archiveNote: 'Research analysis. See Architectural Overview for current framework status.'
  }
];

function extractFrontMatter(content) {
  const frontMatterRegex = /^---\n([\s\S]*?)\n---\n([\s\S]*)$/;
  const match = content.match(frontMatterRegex);

  if (!match) {
    return { frontMatter: {}, content };
  }

  const frontMatterText = match[1];
  const remainingContent = match[2];

  const frontMatter = {};
  frontMatterText.split('\n').forEach(line => {
    const [key, ...valueParts] = line.split(':');
    if (key && valueParts.length > 0) {
      const value = valueParts.join(':').trim();
      frontMatter[key.trim()] = value.replace(/^["']|["']$/g, '');
    }
  });

  return { frontMatter, content: remainingContent };
}

async function importDocument(fileInfo) {
  console.log(`\n📄 Importing: ${fileInfo.title}`);
  console.log(`   File: ${fileInfo.path}`);

  try {
    // Read markdown file
    const rawContent = await fs.readFile(fileInfo.path, 'utf-8');
    const { frontMatter, content } = extractFrontMatter(rawContent);

    // Convert to HTML
    const content_html = markdownToHtml(content);

    // Extract TOC
    const toc = extractTOC(content);

    // Check if document already exists
    const existing = await Document.findBySlug(fileInfo.slug);
    if (existing) {
      console.log(`   ⚠️  Document already exists: ${fileInfo.slug}`);
      console.log(`   Skipping import.`);
      return { success: false, reason: 'exists' };
    }

    // Create document
    const doc = await Document.create({
      title: fileInfo.title,
      slug: fileInfo.slug,
      quadrant: frontMatter.quadrant || null,
      persistence: frontMatter.persistence || 'MEDIUM',
      audience: frontMatter.audience || 'general',
      visibility: 'archived',
      category: fileInfo.category,
      order: fileInfo.order,
      archiveNote: fileInfo.archiveNote,
      content_html,
      content_markdown: content,
      toc,
      metadata: {
        author: frontMatter.author || 'John Stroh',
        version: frontMatter.version || '1.0',
        document_code: frontMatter.identifier || null,
        tags: [],
        original_filename: path.basename(fileInfo.path),
        migrated_at: new Date()
      },
      search_index: content.toLowerCase(),
      translations: {},
      download_formats: {}
    });

    console.log(`   ✅ Imported successfully`);
    console.log(`   ID: ${doc._id}`);
    console.log(`   Slug: ${doc.slug}`);

    return { success: true, doc };

  } catch (error) {
    console.error(`   ❌ Error importing: ${error.message}`);
    return { success: false, error: error.message };
  }
}

async function main() {
  try {
    console.log('🚀 Importing 5 Missing Archives Documents\n');
    console.log('═══════════════════════════════════════════════════\n');

    await connect();

    let imported = 0;
    let skipped = 0;
    let failed = 0;

    for (const fileInfo of FILES_TO_IMPORT) {
      const result = await importDocument(fileInfo);
      if (result.success) {
        imported++;
      } else if (result.reason === 'exists') {
        skipped++;
      } else {
        failed++;
      }
    }

    console.log('\n═══════════════════════════════════════════════════');
    console.log('\n📊 Import Summary:');
    console.log(`   ✅ Imported: ${imported}`);
    console.log(`   ⏭️  Skipped (already exists): ${skipped}`);
    console.log(`   ❌ Failed: ${failed}`);
    console.log(`   📦 Total: ${FILES_TO_IMPORT.length}`);

    await close();

  } catch (error) {
    console.error('\n❌ Fatal error:', error);
    process.exit(1);
  }
}

main();