import { CommandHandler, EventPublisher, ICommandHandler } from '@nestjs/cqrs';
import { ProjectFactory } from '@task-stream/api/tracker/domain';
import { ProjectKeysRepository } from '../ports/project-keys.repository';
import { CommandResult, ack } from './command-result';
import { CreateProjectCommand } from './create-project.command';

@CommandHandler(CreateProjectCommand)
export class CreateProjectCommandHandler
  implements ICommandHandler<CreateProjectCommand>
{
  constructor(
    private readonly projectFactory: ProjectFactory,
    private readonly projectKeys: ProjectKeysRepository,
    private readonly eventPublisher: EventPublisher,
  ) {}

  async execute(command: CreateProjectCommand): Promise<CommandResult> {
    const project = this.projectFactory.create({
      key: command.key,
      name: command.name,
      description: command.description,
      ownerId: command.actorId,
    });
    await this.projectKeys.reserve(project.key, project.id);

    this.eventPublisher.mergeObjectContext(project);
    await project.commitAndWait();
    return ack(project);
  }
}