using EntKube.Clusters.Domain;
using EntKube.Clusters.Features.DeleteCluster;
using EntKube.Clusters.Infrastructure;
using EntKube.SharedKernel.Domain;
using FluentAssertions;

namespace EntKube.Clusters.Tests.Features;

public class DeleteClusterHandlerTests
{
    private readonly DeleteClusterHandler handler;
    private readonly InMemoryClusterRepository repository;

    public DeleteClusterHandlerTests()
    {
        repository = new InMemoryClusterRepository();
        handler = new DeleteClusterHandler(repository);
    }

    [Fact]
    public async Task HandleAsync_WithExistingCluster_DeletesAndReturnsSuccess()
    {
        // Arrange — Register a cluster so we have something to delete.

        KubernetesCluster cluster = KubernetesCluster.Register(
            "staging",
            "https://staging-k8s.example.com:6443",
            "kubeconfig-data",
            Guid.NewGuid(),
            "staging-ctx", Guid.NewGuid());

        await repository.AddAsync(cluster);

        // Act — Delete it by ID.

        Result result = await handler.HandleAsync(cluster.Id);

        // Assert — The deletion succeeds and the cluster is no longer in the repository.

        result.IsSuccess.Should().BeTrue();

        KubernetesCluster? deleted = await repository.GetByIdAsync(cluster.Id);
        deleted.Should().BeNull();
    }

    [Fact]
    public async Task HandleAsync_WithNonExistentId_ReturnsFailure()
    {
        // Arrange — An ID that doesn't exist.

        Guid unknownId = Guid.NewGuid();

        // Act

        Result result = await handler.HandleAsync(unknownId);

        // Assert

        result.IsFailure.Should().BeTrue();
        result.Error.Should().Contain("not found");
    }
}