using FastEndpoints;
using MediatR;
using Workflow.Application.Features.WorkflowInstances.Commands;

namespace Workflow.Api.Endpoints.WorkflowInstance;

public class WithdrawWorkflowInstanceEndpoint : Endpoint<WithdrawWorkflowInstanceRequest>
{
    private readonly IMediator _mediator;

    public WithdrawWorkflowInstanceEndpoint(IMediator mediator) => _mediator = mediator;

    public override void Configure()
    {
        Post("/workflow-instances/{Id}/withdraw");
        AllowAnonymous();
        Summary(s =>
        {
            s.Summary = "Withdraw a workflow instance (initiator only)";
        });
    }

    public override async Task HandleAsync(WithdrawWorkflowInstanceRequest req, CancellationToken ct)
    {
        var command = new WithdrawWorkflowInstanceCommand(req.Id, req.UserId);
        await _mediator.Send(command, ct);
        await Send.OkAsync(ct);
    }
}

public class WithdrawWorkflowInstanceRequest
{
    public Guid Id { get; set; }
    public Guid UserId { get; set; }
}