import { logToFile } from './file-logger.js';
/**
* ConnectionLogger専用インターフェース（設計書Line 114-125対応）
*/
interface IConnectionLogger {
logConnectionEvent(event: 'CREATE' | 'REUSE' | 'CLEANUP', accountName: string, accountType: 'gmail' | 'imap'): void;
logConnectionError(accountName: string, operation: string, error: Error): void;
logPoolStatus(gmailCount: number, imapCount: number): void;
}
/**
* 接続ログ専用クラス（設計書Line 137-177対応）
*/
export class ConnectionLogger implements IConnectionLogger {
private static instance: ConnectionLogger | null = null;
public static getInstance(): ConnectionLogger {
if (!ConnectionLogger.instance) {
ConnectionLogger.instance = new ConnectionLogger();
}
return ConnectionLogger.instance;
}
/**
* 接続イベントをログ記録
* フォーマット: [INFO] [CONNECTION] GMAIL CREATE kentaroh7: New connection established
*/
logConnectionEvent(event: 'CREATE' | 'REUSE' | 'CLEANUP', accountName: string, accountType: 'gmail' | 'imap'): void {
const message = `[CONNECTION] ${accountType.toUpperCase()} ${event} ${accountName}`;
const details = this.getEventDetails(event);
logToFile('info', message, details);
}
/**
* 接続エラーをログ記録
*/
logConnectionError(accountName: string, operation: string, error: Error): void {
const message = `[CONNECTION] ${accountName} FAILED ${operation}`;
logToFile('error', message, error.message);
}
/**
* 接続プール状況をログ記録
*/
logPoolStatus(gmailCount: number, imapCount: number): void {
const message = `[CONNECTION] POOL_STATUS: Gmail: ${gmailCount} active, IMAP: ${imapCount} active`;
logToFile('info', message);
}
/**
* イベント詳細取得
*/
private getEventDetails(event: string): string {
switch (event) {
case 'CREATE': return 'New connection established';
case 'REUSE': return 'Using cached connection';
case 'CLEANUP': return 'Connection cleaned up';
default: return '';
}
}
}
