/**
 * Comprehensive Document Audit
 * Analyzes all documents in development database for:
 * 1. Public suitability
 * 2. Category assignment
 * 3. Quality assessment
 * 4. Archive/removal recommendations
 */

const { MongoClient } = require('mongodb');

// Audit criteria
const AUDIT_CRITERIA = {
  PUBLIC_SUITABLE: {
    // Documents that should be public-facing
    REQUIRED: [
      'Introduction', 'Getting Started', 'Core Concepts',
      'Executive Brief', 'Framework Overview', 'Implementation Guide'
    ],
    RESEARCH: ['Research', 'Working Paper', 'Study', 'Analysis'],
    TECHNICAL: ['API', 'Technical', 'Architecture', 'Integration'],
    BUSINESS: ['Business Case', 'ROI', 'Leadership'],
    EDUCATIONAL: ['Case Study', 'Values', 'Pluralism', 'Theory']
  },

  INTERNAL_ONLY: {
    SESSIONS: ['Session Handoff', 'Session Init', 'Session Summary', 'Part 1', 'Part 2', 'Part 3', 'Part 4'],
    PROCESS: ['Workflow', 'Process', 'Checklist', 'Progress Report'],
    PLANNING: ['Plan', 'Roadmap', 'Assessment', 'Advisory'],
    DEVELOPMENT: ['PoC', 'Proof of Concept', 'Week 1', 'Week 2', 'Week 3'],
    INTERNAL_TECH: ['Benchmark', 'Audit Report', 'Deployment Guide', 'Setup Guide']
  },

  QUALITY_MARKERS: {
    HIGH: ['has sections', 'complete', 'published', 'reviewed'],
    MEDIUM: ['draft', 'in progress'],
    LOW: ['incomplete', 'obsolete', 'deprecated', 'old']
  }
};

async function auditDocument(doc) {
  const audit = {
    title: doc.title,
    slug: doc.slug,
    category: doc.category,
    order: doc.order,
    visibility: doc.visibility,
    hasSections: doc.sections && doc.sections.length > 0,
    sectionCount: doc.sections ? doc.sections.length : 0,
    recommendation: 'ANALYZE', // PUBLIC, ARCHIVE, REMOVE, REVISE
    suggestedCategory: null,
    reasoning: [],
    quality: 'UNKNOWN' // HIGH, MEDIUM, LOW
  };

  const titleLower = doc.title.toLowerCase();
  const slugLower = doc.slug.toLowerCase();

  // Check if internal-only document
  for (const [type, patterns] of Object.entries(AUDIT_CRITERIA.INTERNAL_ONLY)) {
    if (patterns.some(p => titleLower.includes(p.toLowerCase()))) {
      audit.recommendation = 'ARCHIVE';
      audit.reasoning.push(`Internal document (${type})`);
      audit.quality = 'N/A';
      return audit;
    }
  }

  // Check if public-suitable
  let isPublicSuitable = false;

  for (const [type, patterns] of Object.entries(AUDIT_CRITERIA.PUBLIC_SUITABLE)) {
    if (patterns.some(p => titleLower.includes(p.toLowerCase()))) {
      isPublicSuitable = true;

      // Suggest category based on type
      if (type === 'REQUIRED') audit.suggestedCategory = 'getting-started';
      else if (type === 'RESEARCH') audit.suggestedCategory = 'research-theory';
      else if (type === 'TECHNICAL') audit.suggestedCategory = 'technical-reference';
      else if (type === 'BUSINESS') audit.suggestedCategory = 'business-leadership';
      else if (type === 'EDUCATIONAL') {
        if (titleLower.includes('case study')) audit.suggestedCategory = 'case-studies';
        else audit.suggestedCategory = 'advanced-topics';
      }

      audit.reasoning.push(`Public-suitable (${type})`);
      break;
    }
  }

  // Quality assessment
  if (audit.hasSections && audit.sectionCount >= 5) {
    audit.quality = 'HIGH';
    audit.reasoning.push(`Well-structured (${audit.sectionCount} sections)`);
  } else if (audit.hasSections) {
    audit.quality = 'MEDIUM';
    audit.reasoning.push(`Structured (${audit.sectionCount} sections)`);
  } else {
    audit.quality = 'LOW';
    audit.reasoning.push('No sections (may need revision)');
  }

  // Check current category
  if (doc.category === 'none' || !doc.category) {
    audit.reasoning.push('⚠️ Uncategorized');
  }

  if (doc.order === 999) {
    audit.reasoning.push('⚠️ Default order (not prioritized)');
  }

  // Final recommendation
  if (isPublicSuitable && audit.quality !== 'LOW') {
    audit.recommendation = 'PUBLIC';
  } else if (isPublicSuitable && audit.quality === 'LOW') {
    audit.recommendation = 'REVISE';
    audit.reasoning.push('Needs content improvement before public');
  } else if (!isPublicSuitable) {
    audit.recommendation = 'ARCHIVE';
  }

  return audit;
}

async function run() {
  const client = new MongoClient('mongodb://localhost:27017');

  try {
    await client.connect();
    const db = client.db('tractatus_dev');
    const collection = db.collection('documents');

    const allDocs = await collection.find({}).sort({ category: 1, order: 1 }).toArray();

    console.log('═══════════════════════════════════════════════════════════');
    console.log('  COMPREHENSIVE DOCUMENT AUDIT');
    console.log('═══════════════════════════════════════════════════════════\n');
    console.log(`Total documents: ${allDocs.length}\n`);

    const audits = [];
    for (const doc of allDocs) {
      const audit = await auditDocument(doc);
      audits.push(audit);
    }

    // Group by recommendation
    const byRecommendation = {
      PUBLIC: audits.filter(a => a.recommendation === 'PUBLIC'),
      REVISE: audits.filter(a => a.recommendation === 'REVISE'),
      ARCHIVE: audits.filter(a => a.recommendation === 'ARCHIVE'),
      REMOVE: audits.filter(a => a.recommendation === 'REMOVE')
    };

    // Summary
    console.log('═══════════════════════════════════════════════════════════');
    console.log('  SUMMARY');
    console.log('═══════════════════════════════════════════════════════════\n');
    console.log(`PUBLIC (should be on /docs.html):     ${byRecommendation.PUBLIC.length}`);
    console.log(`REVISE (needs work before public):    ${byRecommendation.REVISE.length}`);
    console.log(`ARCHIVE (internal, keep but hide):    ${byRecommendation.ARCHIVE.length}`);
    console.log(`REMOVE (obsolete, delete):            ${byRecommendation.REMOVE.length}\n`);

    // Detailed recommendations
    console.log('═══════════════════════════════════════════════════════════');
    console.log('  1. RECOMMENDED FOR PUBLIC (/docs.html)');
    console.log('═══════════════════════════════════════════════════════════\n');

    const byCategory = {};
    byRecommendation.PUBLIC.forEach(a => {
      const cat = a.suggestedCategory || a.category || 'uncategorized';
      if (!byCategory[cat]) byCategory[cat] = [];
      byCategory[cat].push(a);
    });

    Object.keys(byCategory).sort().forEach(cat => {
      console.log(`\n${cat.toUpperCase()} (${byCategory[cat].length} documents):`);
      byCategory[cat].forEach(a => {
        console.log(`  ✓ ${a.title}`);
        console.log(`    Quality: ${a.quality} | Sections: ${a.sectionCount}`);
        if (a.category !== a.suggestedCategory && a.suggestedCategory) {
          console.log(`    ⚠️ Move from "${a.category}" to "${a.suggestedCategory}"`);
        }
      });
    });

    console.log('\n\n═══════════════════════════════════════════════════════════');
    console.log('  2. NEEDS REVISION BEFORE PUBLIC');
    console.log('═══════════════════════════════════════════════════════════\n');
    byRecommendation.REVISE.forEach(a => {
      console.log(`  ⚠️ ${a.title}`);
      console.log(`     Current: ${a.category} | Suggested: ${a.suggestedCategory}`);
      console.log(`     Reason: ${a.reasoning.join(', ')}\n`);
    });

    console.log('\n═══════════════════════════════════════════════════════════');
    console.log('  3. RECOMMENDED FOR ARCHIVE');
    console.log('═══════════════════════════════════════════════════════════\n');

    const archiveGroups = {};
    byRecommendation.ARCHIVE.forEach(a => {
      const reason = a.reasoning[0] || 'Other';
      if (!archiveGroups[reason]) archiveGroups[reason] = [];
      archiveGroups[reason].push(a.title);
    });

    Object.keys(archiveGroups).forEach(reason => {
      console.log(`\n${reason} (${archiveGroups[reason].length}):`);
      archiveGroups[reason].slice(0, 5).forEach(title => {
        console.log(`  - ${title}`);
      });
      if (archiveGroups[reason].length > 5) {
        console.log(`  ... and ${archiveGroups[reason].length - 5} more`);
      }
    });

    // Save detailed audit to file
    const fs = require('fs');
    const auditReport = {
      timestamp: new Date().toISOString(),
      totalDocuments: allDocs.length,
      recommendations: byRecommendation,
      categorySuggestions: byCategory
    };

    fs.writeFileSync(
      'docs/DOCUMENT_AUDIT_REPORT.json',
      JSON.stringify(auditReport, null, 2)
    );

    console.log('\n\n═══════════════════════════════════════════════════════════');
    console.log('  Full audit report saved to: docs/DOCUMENT_AUDIT_REPORT.json');
    console.log('═══════════════════════════════════════════════════════════\n');

    await client.close();
    process.exit(0);
  } catch (error) {
    console.error('Error:', error);
    await client.close();
    process.exit(1);
  }
}

run();