Class BatchCommand

Source

export class BatchCommand implements Command {
  private readonly metadata: CommandMetadata;

  constructor(
    private readonly commands: Command[],
    description: string = "Batch operation",
  ) {
    const allTitles = commands.flatMap(
      (cmd) => cmd.getMetadata().affectedTitles,
    );
    this.metadata = {
      type: CommandType.BATCH_OPERATION,
      timestamp: Date.now(),
      affectedTitles: allTitles,
      description: `${description} (${commands.length} items)`,
    };
  }

  execute(): void {
    for (const cmd of this.commands) {
      cmd.execute();
    }
  }

  undo(): void {
    // Undo in reverse order to maintain consistency
    for (let i = this.commands.length - 1; i >= 0; i--) {
      this.commands[i].undo();
    }
  }

  getDescription(): string {
    return this.metadata.description;
  }

  getMetadata(): CommandMetadata {
    return this.metadata;
  }
}
Copy