import { spawn } from 'child_process';

export interface DependencyStatus {
  ffmpeg?: 'available' | 'unavailable';
  neo4jDriver?: 'available' | 'unavailable';
  betterSqlite3?: 'available' | 'unavailable';
}

/**
 * Check availability of optional dependencies at startup.
 */
export async function checkDependencies(): Promise<DependencyStatus> {
  const status: DependencyStatus = {};
  
  // Check FFmpeg
  try {
    await new Promise((resolve, reject) => {
      const child = spawn('ffmpeg', ['-version'], { stdio: 'ignore' });
      child.on('error', reject);
      child.on('close', (code) => resolve(code === 0));
    });
    status.ffmpeg = 'available';
  } catch {
    status.ffmpeg = 'unavailable';
  }

  // Check Neo4j driver
  try {
    await import('neo4j-driver');
    status.neo4jDriver = 'available';
  } catch {
    status.neo4jDriver = 'unavailable';
  }

  // Check better-sqlite3
  try {
    await import('better-sqlite3');
    status.betterSqlite3 = 'available';
  } catch {
    status.betterSqlite3 = 'unavailable';
  }

  return status;
}

/**
 * Format dependency status for display to user/agent.
 */
export function formatDependencyStatus(status: DependencyStatus): string {
  const lines: string[] = ['## Optional Dependencies Status'];
  
  if (status.ffmpeg === 'available') {
    lines.push('- **FFmpeg**: Available (video/audio tools enabled)');
  } else {
    lines.push('- **FFmpeg**: Not found - video/audio transcoding will fail');
  }
  
  if (status.neo4jDriver === 'available') {
    lines.push('- **Neo4j Driver**: Available');
  } else {
    lines.push('- **Neo4j Driver**: Not installed - Neo4j tools will fail');
  }
  
  if (status.betterSqlite3 === 'available') {
    lines.push('- **better-sqlite3**: Available');
  } else {
    lines.push('- **better-sqlite3**: Not installed - SQLite inspection will fail');
  }
  
  return lines.join('\n');
}

import { spawn } from 'child_process';

export interface DependencyStatus {
  ffmpeg?: 'available' | 'unavailable';
  neo4jDriver?: 'available' | 'unavailable';
  betterSqlite3?: 'available' | 'unavailable';
}

/**
 * Check availability of optional dependencies at startup.
 */
export async function checkDependencies(): Promise<DependencyStatus> {
  const status: DependencyStatus = {};
  
  // Check FFmpeg
  try {
    await new Promise((resolve, reject) => {
      const child = spawn('ffmpeg', ['-version'], { stdio: 'ignore' });
      child.on('error', reject);
      child.on('close', (code) => resolve(code === 0));
    });
    status.ffmpeg = 'available';
  } catch {
    status.ffmpeg = 'unavailable';
  }

  // Check Neo4j driver
  try {
    await import('neo4j-driver');
    status.neo4jDriver = 'available';
  } catch {
    status.neo4jDriver = 'unavailable';
  }

  // Check better-sqlite3
  try {
    await import('better-sqlite3');
    status.betterSqlite3 = 'available';
  } catch {
    status.betterSqlite3 = 'unavailable';
  }

  return status;
}

/**
 * Format dependency status for display to user/agent.
 */
export function formatDependencyStatus(status: DependencyStatus): string {
  const lines: string[] = ['## Optional Dependencies Status'];
  
  if (status.ffmpeg === 'available') {
    lines.push('- **FFmpeg**: Available (video/audio tools enabled)');
  } else {
    lines.push('- **FFmpeg**: Not found - video/audio transcoding will fail');
  }
  
  if (status.neo4jDriver === 'available') {
    lines.push('- **Neo4j Driver**: Available');
  } else {
    lines.push('- **Neo4j Driver**: Not installed - Neo4j tools will fail');
  }
  
  if (status.betterSqlite3 === 'available') {
    lines.push('- **better-sqlite3**: Available');
  } else {
    lines.push('- **better-sqlite3**: Not installed - SQLite inspection will fail');
  }
  
  return lines.join('\n');
}