import { CommandHandler, ICommandHandler } from '@nestjs/cqrs';
import { CommandResult, ack } from './command-result';
import { ChangeIssueStatusCommand } from './change-issue-status.command';
import { WriteAccess } from './write-access';

@CommandHandler(ChangeIssueStatusCommand)
export class ChangeIssueStatusCommandHandler
  implements ICommandHandler<ChangeIssueStatusCommand>
{
  constructor(private readonly access: WriteAccess) {}

  async execute(command: ChangeIssueStatusCommand): Promise<CommandResult> {
    const { issue, project } = await this.access.issueForContributor(
      command.issueId,
      command.actorId,
    );
    issue.changeStatus(
      command.actorId,
      command.status,
      command.reason,
      project.workflow,
    );
    await issue.commitAndWait();
    return ack(issue);
  }
}