import { CommandHandler, ICommandHandler } from '@nestjs/cqrs';
import { CommandResult, ack } from './command-result';
import { SetIssueReleaseCommand } from './set-issue-release.command';
import { WriteAccess } from './write-access';

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

  async execute(command: SetIssueReleaseCommand): Promise<CommandResult> {
    const { issue, project } = await this.access.issueForContributor(
      command.issueId,
      command.actorId,
    );
    // Neither the old nor the new release may be already shipped.
    if (issue.releaseId)
      await this.access.openReleaseOf(project, issue.releaseId);
    if (command.releaseId)
      await this.access.openReleaseOf(project, command.releaseId);
    issue.setRelease(command.actorId, command.releaseId);
    await issue.commitAndWait();
    return ack(issue);
  }
}