using EntKube.Provisioning.Domain;
using EntKube.Provisioning.Features.Apps.RemoveAppEnvironment;
using EntKube.Provisioning.Infrastructure;
using EntKube.SharedKernel.Domain;
using FluentAssertions;

namespace EntKube.Provisioning.Tests.Features;

public class RemoveAppEnvironmentHandlerTests
{
    private readonly InMemoryAppRepository repository;
    private readonly RemoveAppEnvironmentHandler handler;

    public RemoveAppEnvironmentHandlerTests()
    {
        repository = new InMemoryAppRepository();
        handler = new RemoveAppEnvironmentHandler(repository);
    }

    [Fact]
    public async Task HandleAsync_ExistingEnvironment_RemovesSuccessfully()
    {
        // Arrange — An app with one environment.

        App app = App.Create(Guid.NewGuid(), Guid.NewGuid(), "API", "api", AppType.Deployment);
        Guid envId = Guid.NewGuid();
        app.AddEnvironment(envId, Guid.NewGuid(), "api-dev");
        await repository.AddAsync(app);

        // Act

        Result result = await handler.HandleAsync(new RemoveAppEnvironmentRequest(app.Id, envId));

        // Assert — The environment should be removed.

        result.IsSuccess.Should().BeTrue();
        App? updated = await repository.GetByIdAsync(app.Id);
        updated!.Environments.Should().BeEmpty();
    }

    [Fact]
    public async Task HandleAsync_NonexistentApp_ReturnsFailure()
    {
        // Act

        Result result = await handler.HandleAsync(new RemoveAppEnvironmentRequest(Guid.NewGuid(), Guid.NewGuid()));

        // Assert

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

    [Fact]
    public async Task HandleAsync_NonexistentEnvironment_ReturnsFailure()
    {
        // Arrange — An app with no environments.

        App app = App.Create(Guid.NewGuid(), Guid.NewGuid(), "API", "api", AppType.Deployment);
        await repository.AddAsync(app);

        // Act

        Result result = await handler.HandleAsync(new RemoveAppEnvironmentRequest(app.Id, Guid.NewGuid()));

        // Assert

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