import { CommandHandler, ICommandHandler } from '@nestjs/cqrs';
import { CommandResult, ack } from './command-result';
import { UnlinkIssuesCommand } from './unlink-issues.command';
import { WriteAccess } from './write-access';

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

  async execute(command: UnlinkIssuesCommand): Promise<CommandResult> {
    const { issue } = await this.access.issueForContributor(
      command.issueId,
      command.actorId,
    );
    issue.unlink(command.actorId, command.type, command.targetIssueId);
    await issue.commitAndWait();
    return ack(issue);
  }
}