#!/usr/bin/env node

/**
 * Framework Integration Hook
 *
 * Automatically invokes framework services during Claude Code tool execution.
 * This hook runs on every tool use and routes to appropriate framework services.
 *
 * Integrated Services:
 * - BoundaryEnforcer: Security, architectural, cross-project boundaries
 * - ContextPressureMonitor: Token/message pressure tracking
 * - CrossReferenceValidator: Instruction compliance validation
 * - MetacognitiveVerifier: Decision reasoning verification
 * - InstructionPersistenceClassifier: New instruction classification
 * - PluralisticDeliberationOrchestrator: Value conflict deliberation
 */

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

// Parse command line arguments
const args = process.argv.slice(2);
const toolName = args[0]; // 'Edit', 'Write', 'Read', 'Bash', etc.
const toolArgsJson = args[1]; // JSON string of tool arguments

// Exit early if no args (allow execution)
if (!toolName || !toolArgsJson) {
  process.exit(0);
}

let toolArgs;
try {
  toolArgs = JSON.parse(toolArgsJson);
} catch (err) {
  // Invalid JSON, allow execution
  process.exit(0);
}

/**
 * Main framework integration logic
 */
async function integrateFramework() {
  const mongoose = require('mongoose');

  // Connect to MongoDB
  try {
    await mongoose.connect('mongodb://localhost:27017/tractatus_dev', {
      serverSelectionTimeoutMS: 2000
    });
  } catch (err) {
    // MongoDB not available, skip framework (allow execution)
    process.exit(0);
  }

  // Import framework services
  const BoundaryEnforcer = require('../../src/services/BoundaryEnforcer.service');
  const ContextPressureMonitor = require('../../src/services/ContextPressureMonitor.service');
  const CrossReferenceValidator = require('../../src/services/CrossReferenceValidator.service');
  const MetacognitiveVerifier = require('../../src/services/MetacognitiveVerifier.service');

  const sessionId = 'claude-code-session-' + new Date().toISOString().split('T')[0];

  try {
    // Route to appropriate framework service based on tool
    switch (toolName) {
      case 'Edit':
      case 'Write':
        await handleFileModification(toolArgs, sessionId);
        break;

      case 'Bash':
        await handleBashCommand(toolArgs, sessionId);
        break;

      case 'Read':
        await handleFileRead(toolArgs, sessionId);
        break;

      default:
        // Unknown tool, allow execution
        break;
    }

    await mongoose.disconnect();
    process.exit(0); // Allow execution

  } catch (err) {
    console.error('[Framework Hook] Error:', err.message);
    await mongoose.disconnect();

    // If framework service blocks, exit with code 1
    if (err.blocked) {
      process.exit(1); // Block execution
    }

    process.exit(0); // Allow execution on errors
  }
}

/**
 * Handle file modifications (Edit, Write tools)
 */
async function handleFileModification(args, sessionId) {
  const BoundaryEnforcer = require('../../src/services/BoundaryEnforcer.service');
  const CrossReferenceValidator = require('../../src/services/CrossReferenceValidator.service');
  const MetacognitiveVerifier = require('../../src/services/MetacognitiveVerifier.service');

  const filePath = args.file_path || args.path || 'unknown';
  const content = args.new_string || args.content || '';

  // Check boundaries
  const boundaryContext = {
    sessionId,
    action: 'file_modification',
    target: filePath,
    description: `Modify ${path.basename(filePath)}`,
    metadata: {
      tool: 'Edit/Write',
      contentLength: content.length
    }
  };

  try {
    await BoundaryEnforcer.checkBoundaries(boundaryContext);
  } catch (err) {
    if (err.message.includes('boundary')) {
      throw { blocked: true, reason: err.message };
    }
  }

  // Validate against instructions (if modifying governance files)
  const governanceFiles = ['CLAUDE.md', 'instruction-history.json', 'auth.middleware.js', 'auth.controller.js'];
  const isGovernanceFile = governanceFiles.some(f => filePath.includes(f));

  if (isGovernanceFile) {
    await CrossReferenceValidator.validateAgainstInstructions({
      sessionId,
      action: 'modify_governance_file',
      description: `Modifying ${path.basename(filePath)}`,
      context: { file: filePath }
    });
  }

  // Metacognitive verification for security-critical files
  const securityFiles = ['auth', 'security', 'credential', 'jwt', 'password'];
  const isSecurityFile = securityFiles.some(keyword => filePath.toLowerCase().includes(keyword));

  if (isSecurityFile) {
    await MetacognitiveVerifier.verifyDecision({
      sessionId,
      action: 'modify_security_file',
      reasoning: `Modifying security-critical file: ${filePath}`,
      context: {
        file: filePath,
        security_impact: true,
        requires_approval: true
      }
    });
  }
}

/**
 * Handle Bash command execution
 */
async function handleBashCommand(args, sessionId) {
  const BoundaryEnforcer = require('../../src/services/BoundaryEnforcer.service');

  const command = args.command || '';

  // Check for cross-project commands
  const crossProjectPatterns = ['/family-history/', '/sydigital/', 'cd ../'];
  const isCrossProject = crossProjectPatterns.some(pattern => command.includes(pattern));

  if (isCrossProject) {
    await BoundaryEnforcer.checkBoundaries({
      sessionId,
      action: 'bash_command',
      target: command,
      description: 'Cross-project bash command',
      metadata: {
        command: command.substring(0, 100)
      }
    });
  }
}

/**
 * Handle file reads
 */
async function handleFileRead(args, sessionId) {
  // File reads are generally allowed, just track context pressure
  const ContextPressureMonitor = require('../../src/services/ContextPressureMonitor.service');

  // Update pressure tracking (passive monitoring)
  // This doesn't block, just logs
  try {
    const sessionState = JSON.parse(
      fs.readFileSync(path.join(__dirname, '../../.claude/session-state.json'), 'utf8')
    );

    await ContextPressureMonitor.analyzeContext({
      sessionId,
      tokens: sessionState.token_estimate || 0,
      budget: 200000,
      messages: sessionState.message_count || 0
    });
  } catch (err) {
    // Ignore pressure monitoring errors
  }
}

// Run integration
integrateFramework().catch(err => {
  console.error('[Framework Hook] Fatal error:', err.message);
  process.exit(0); // Allow execution on fatal errors
});