#!/usr/bin/env node

/**
 * Scan Response Templates for Governance Violations
 * Checks all existing templates for inst_016/017/018/079 violations
 *
 * Usage:
 *   node scripts/scan-response-templates.js
 *   node scripts/scan-response-templates.js --fix  # Mark violating templates as inactive
 */

const { getCollection } = require('../src/utils/db.util');
const ContentGovernanceChecker = require('../src/services/ContentGovernanceChecker.service');

async function main() {
  try {
    const args = process.argv.slice(2);
    const fixMode = args.includes('--fix');

    console.log('╔══════════════════════════════════════════════════════╗');
    console.log('║   Response Template Governance Scanner              ║');
    console.log('╚══════════════════════════════════════════════════════╝');
    console.log('');

    const collection = await getCollection('response_templates');

    // Get all active templates
    const templates = await collection.find({ active: true }).toArray();

    console.log(`Found ${templates.length} active templates to scan\n`);

    const results = {
      scanned: 0,
      passed: 0,
      failed: 0,
      violations: []
    };

    for (const template of templates) {
      results.scanned++;

      // Scan template content
      const fullText = [template.subject, template.content].filter(Boolean).join('\n');
      const check = await ContentGovernanceChecker.scanContent(fullText, {
        type: 'response_template',
        context: {
          template_id: template._id.toString(),
          name: template.name,
          category: template.category
        }
      });

      if (check.success) {
        results.passed++;
        console.log(`✅ ${template.name} (${template.category})`);
      } else {
        results.failed++;
        console.log(`\n❌ ${template.name} (${template.category})`);
        console.log(`   ID: ${template._id}`);
        console.log(`   Violations: ${check.violations.length}`);

        check.violations.forEach((v, idx) => {
          console.log(`   ${idx + 1}. [${v.severity}] ${v.rule}`);
          console.log(`      "${v.match}"`);
          console.log(`      ${v.message}`);
        });

        results.violations.push({
          template_id: template._id,
          name: template.name,
          category: template.category,
          violations: check.violations
        });

        // Update template with governance check results
        await collection.updateOne(
          { _id: template._id },
          {
            $set: {
              'governance_check.passed': false,
              'governance_check.scanned_at': check.scannedAt,
              'governance_check.violations': check.violations,
              'governance_check.summary': check.summary,
              updated_at: new Date()
            }
          }
        );

        // Mark as inactive if in fix mode
        if (fixMode) {
          await collection.updateOne(
            { _id: template._id },
            {
              $set: {
                active: false,
                deactivated_reason: 'Governance violations detected',
                deactivated_at: new Date()
              }
            }
          );
          console.log(`   🔒 Template marked as inactive`);
        }

        console.log('');
      }
    }

    // Summary
    console.log('');
    console.log('╔══════════════════════════════════════════════════════╗');
    console.log('║   Scan Summary                                       ║');
    console.log('╚══════════════════════════════════════════════════════╝');
    console.log('');
    console.log(`Total Scanned:  ${results.scanned}`);
    console.log(`✅ Passed:       ${results.passed}`);
    console.log(`❌ Failed:       ${results.failed}`);
    console.log('');

    if (results.failed > 0) {
      console.log('Violations by Rule:');
      const violationsByRule = {};
      results.violations.forEach(v => {
        v.violations.forEach(violation => {
          violationsByRule[violation.instruction] = (violationsByRule[violation.instruction] || 0) + 1;
        });
      });

      Object.entries(violationsByRule).forEach(([rule, count]) => {
        console.log(`  • ${rule}: ${count}`);
      });

      console.log('');

      if (fixMode) {
        console.log(`🔒 ${results.failed} violating template(s) marked as inactive`);
      } else {
        console.log('💡 Run with --fix to mark violating templates as inactive');
      }
    }

    console.log('');
    process.exit(results.failed > 0 ? 1 : 0);

  } catch (error) {
    console.error('Error scanning templates:', error);
    process.exit(1);
  }
}

// Run if called directly
if (require.main === module) {
  main();
}

module.exports = { main };