Class AutoDelPlugin

autodel/autodel.ts:14–365

class AutoDelPlugin extends Plugin {
  cleanup(): void {
    if (this.db) {
      try {
        this.db.close();
      } catch {}
    }
    this.db = null;
    this.settings.clear();
    this.lifecycle = null;
  }

  description: string = `🕒 <b>定时自动删除消息</b><br/><br/>
<b>命令</b><br/>
• <code>${mainPrefix}autodel [时间] [global]</code> 设置自动删除<br/>
• <code>${mainPrefix}autodel l</code> 查看当前设置<br/>
• <code>${mainPrefix}autodel cancel [global]</code> 取消设置<br/><br/>
<b>时间格式</b><br/>
• <code>30 seconds</code>、<code>5 minutes</code>、<code>2 hours</code>、<code>1 days</code><br/>
• 简写：<code>30s</code>、<code>5m</code>、<code>2h</code>、<code>1d</code><br/>
• 中文：<code>30秒</code>、<code>5分</code>/<code>5分钟</code>、<code>2小时</code>/<code>2时</code>、<code>1天</code><br/><br/>
<b>示例</b><br/>
• <code>${mainPrefix}autodel 30s</code><br/>
• <code>${mainPrefix}autodel 5 分钟 global</code>（设置全局）<br/><br/>
<b>⚠️ 安全说明</b><br/>
• 只会删除您自己发送的消息<br/>
• 最小删除时间为5秒`;
  private db: Database.Database | null = null;
  private settings: Map<string, number> = new Map();
  private lifecycle: GenerationContext | null = null;

  async setup(context: { lifecycle: GenerationContext }): Promise<void> {
    this.lifecycle = context.lifecycle;
    // Singleton plugin: the constructor's initDatabase() only runs once, but
    // cleanup() nulls this.db and clears this.settings on every reload. Without
    // re-initializing here, autodel silently stops working after .reload (db is
    // null, settings empty) until a full process restart. Re-init on every load.
    if (!this.db) {
      await this.initDatabase();
    }
  }
  
  cmdHandlers: Record<string, (msg: Api.Message) => Promise<void>> = {
    autodel: this.handleAutoDel.bind(this)
  };

  constructor() {
    super();
    this.initDatabase();
  }

  private async initDatabase(): Promise<void> {
    try {
      const assetsDir = await createDirectoryInAssets("autodel");
      const dbPath = path.join(assetsDir, "autodel.db");
      
      this.db = new Database(dbPath);