import { app } from 'electron';
import * as fs from 'fs';
import * as path from 'path';

export function getTranscriptFilePath(sessionKey: string): string {
  let agentId: string;
  let sessionId: string;

  if (sessionKey.startsWith('agent:')) {
    const parts = sessionKey.split(':');
    agentId = parts[1] ?? 'default';
    sessionId = parts.slice(2).join(':') || sessionKey;
  } else if (sessionKey.startsWith('local:')) {
    const parts = sessionKey.split(':');
    agentId = parts[1] ?? 'local';
    sessionId = parts.slice(2).join(':') || sessionKey;
  } else {
    agentId = 'default';
    sessionId = sessionKey;
  }

  if (!sessionId) {
    sessionId = 'unknown';
  }

  const baseDir = path.join(app.getPath('userData'), 'agents', agentId, 'sessions');
  return path.join(baseDir, `${sessionId}.jsonl`);
}

export function appendTranscriptLine(sessionKey: string, lineObject: any): void {
  const filePath = getTranscriptFilePath(sessionKey);
  fs.mkdirSync(path.dirname(filePath), { recursive: true });
  fs.appendFileSync(filePath, JSON.stringify(lineObject) + '\n', 'utf-8');
}