using PnvPanel.Domain.Activation;
using PnvPanel.Domain.Exceptions;
using Xunit;

namespace PnvPanel.Domain.Tests.Activation;

public class ActivationRequestTests
{
    [Fact]
    public void Create_SetsPendingStatus()
    {
        var userId = Guid.NewGuid();

        var request = ActivationRequest.Create(userId, "Please activate me");

        Assert.Equal(userId, request.UserId);
        Assert.Equal("Please activate me", request.Comment);
        Assert.Equal(ActivationStatus.Pending, request.Status);
        Assert.Null(request.DecidedBy);
        Assert.Null(request.DecidedAt);
    }

    [Fact]
    public void Approve_WhenPending_SetsApprovedAndDecisionMetadata()
    {
        var request = ActivationRequest.Create(Guid.NewGuid(), null);
        var adminId = Guid.NewGuid();

        request.Approve(adminId);

        Assert.Equal(ActivationStatus.Approved, request.Status);
        Assert.Equal(adminId, request.DecidedBy);
        Assert.NotNull(request.DecidedAt);
    }

    [Fact]
    public void Reject_WhenPending_SetsRejectedWithReason()
    {
        var request = ActivationRequest.Create(Guid.NewGuid(), null);
        var adminId = Guid.NewGuid();

        request.Reject(adminId, "не хватает информации");

        Assert.Equal(ActivationStatus.Rejected, request.Status);
        Assert.Equal(adminId, request.DecidedBy);
        Assert.Equal("не хватает информации", request.RejectionReason);
    }

    [Fact]
    public void Approve_WhenAlreadyApproved_Throws()
    {
        var request = ActivationRequest.Create(Guid.NewGuid(), null);
        request.Approve(Guid.NewGuid());

        Assert.Throws<DomainException>(() => request.Approve(Guid.NewGuid()));
    }

    [Fact]
    public void Reject_WhenAlreadyRejected_Throws()
    {
        var request = ActivationRequest.Create(Guid.NewGuid(), null);
        request.Reject(Guid.NewGuid(), null);

        Assert.Throws<DomainException>(() => request.Reject(Guid.NewGuid(), null));
    }

    [Fact]
    public void Reject_WhenAlreadyApproved_Throws()
    {
        var request = ActivationRequest.Create(Guid.NewGuid(), null);
        request.Approve(Guid.NewGuid());

        Assert.Throws<DomainException>(() => request.Reject(Guid.NewGuid(), null));
    }
}