/**
 * Example internal hook handler: Log all commands to a file
 *
 * This handler demonstrates how to create a hook that logs all command events
 * to a centralized log file for audit/debugging purposes.
 *
 * To enable this handler, add it to your config:
 *
 * ```json
 * {
 *   "hooks": {
 *     "internal": {
 *       "enabled": true,
 *       "handlers": [
 *         {
 *           "event": "command",
 *           "module": "./hooks/handlers/command-logger.ts"
 *         }
 *       ]
 *     }
 *   }
 * }
 * ```
 */

import fs from 'node:fs/promises';
import path from 'node:path';
import os from 'node:os';
import type { InternalHookHandler } from '../../internal-hooks.js';

/**
 * Log all command events to a file
 */
const logCommand: InternalHookHandler = async (event) => {
  // Only trigger on command events
  if (event.type !== 'command') {
    return;
  }

  try {
    // Create log directory
    const logDir = path.join(os.homedir(), '.clawdbot', 'logs');
    await fs.mkdir(logDir, { recursive: true });

    // Append to command log file
    const logFile = path.join(logDir, 'commands.log');
    const logLine = JSON.stringify({
      timestamp: event.timestamp.toISOString(),
      action: event.action,
      sessionKey: event.sessionKey,
      senderId: event.context.senderId ?? 'unknown',
      source: event.context.commandSource ?? 'unknown',
    }) + '\n';

    await fs.appendFile(logFile, logLine, 'utf-8');
  } catch (err) {
    console.error(
      '[command-logger] Failed to log command:',
      err instanceof Error ? err.message : String(err)
    );
  }
};

export default logCommand;