import fs from 'node:fs';

const LOG_FILE = '/tmp/proxy.jsonl';

export interface LogEntry {
  time: string;
  method: string;
  path: string;
  status: number;
  duration: number;
  stream?: boolean;
  error?: string;
  provider?: string;
}

export function log(entry: LogEntry): void {
  try {
    const logLine = JSON.stringify(entry) + '\n';
    fs.appendFileSync(LOG_FILE, logLine, 'utf-8');
  } catch (e) {
    console.error('写入日志失败:', e);
  }
}

export function createLogEntry(
  method: string,
  path: string,
  status: number,
  duration: number,
  options?: { stream?: boolean; error?: string; provider?: string }
): LogEntry {
  return {
    time: new Date().toISOString(),
    method,
    path,
    status,
    duration,
    ...options,
  };
}