namespace PS.IPAM.Tests.Helpers;

using FluentAssertions;
using PS.IPAM;
using PS.IPAM.Helpers;
using Xunit;

[Collection("Sequential")]
public class SessionManagerTests : IDisposable
{
    public SessionManagerTests()
    {
        // Ensure clean state before each test
        SessionManager.CloseSession();
    }

    public void Dispose()
    {
        // Clean up after each test
        SessionManager.CloseSession();
    }

    [Fact]
    public void GetSessionStatus_WhenNoSession_ReturnsNoSession()
    {
        // Arrange
        SessionManager.CurrentSession = null;

        // Act
        var result = SessionManager.GetSessionStatus();

        // Assert
        result.Should().Be(SessionStatus.NoSession);
    }

    [Fact]
    public void GetSessionStatus_WhenSessionWithNullExpires_ReturnsValid()
    {
        // Arrange
        var session = new Session(AuthType.Token, "test-token", "app", "https://test.com", null, null);
        SessionManager.CurrentSession = session;

        // Act
        var result = SessionManager.GetSessionStatus();

        // Assert
        result.Should().Be(SessionStatus.Valid);
    }

    [Fact]
    public void GetSessionStatus_WhenSessionNotExpired_ReturnsValid()
    {
        // Arrange
        var futureExpiry = DateTime.Now.AddHours(1);
        var session = new Session(AuthType.Credentials, "test-token", "app", "https://test.com", futureExpiry, null);
        SessionManager.CurrentSession = session;

        // Act
        var result = SessionManager.GetSessionStatus();

        // Assert
        result.Should().Be(SessionStatus.Valid);
    }

    [Fact]
    public void GetSessionStatus_WhenSessionExpired_ReturnsExpired()
    {
        // Arrange
        var pastExpiry = DateTime.Now.AddHours(-1);
        var session = new Session(AuthType.Credentials, "test-token", "app", "https://test.com", pastExpiry, null);
        SessionManager.CurrentSession = session;

        // Act
        var result = SessionManager.GetSessionStatus();

        // Assert
        result.Should().Be(SessionStatus.Expired);
    }

    [Fact]
    public void CreateSessionWithToken_CreatesValidSession()
    {
        // Arrange
        var url = "https://ipam.example.com";
        var appId = "myApp";
        var token = "static-api-token";

        // Act
        var session = SessionManager.CreateSessionWithToken(url, appId, token);

        // Assert
        session.Should().NotBeNull();
        session.URL.Should().Be(url);
        session.AppID.Should().Be(appId);
        session.Token.Should().Be(token);
        session.AuthType.Should().Be(AuthType.Token);
        session.Expires.Should().BeNull();
        session.Credentials.Should().BeNull();
    }

    [Fact]
    public void CreateSessionWithToken_SetsCurrentSession()
    {
        // Arrange
        var url = "https://ipam.example.com";
        var appId = "myApp";
        var token = "api-token";

        // Act
        var session = SessionManager.CreateSessionWithToken(url, appId, token);

        // Assert
        SessionManager.CurrentSession.Should().BeSameAs(session);
    }

    [Fact]
    public void CloseSession_ClearsCurrentSession()
    {
        // Arrange
        SessionManager.CreateSessionWithToken("https://test.com", "app", "token");
        SessionManager.CurrentSession.Should().NotBeNull();

        // Act
        SessionManager.CloseSession();

        // Assert
        SessionManager.CurrentSession.Should().BeNull();
    }

    [Fact]
    public void CloseSession_WhenNoSession_DoesNotThrow()
    {
        // Arrange
        SessionManager.CurrentSession = null;

        // Act
        var action = () => SessionManager.CloseSession();

        // Assert
        action.Should().NotThrow();
    }

    [Fact]
    public void CurrentSession_CanBeSetDirectly()
    {
        // Arrange
        var session = new Session(AuthType.Token, "token", "app", "https://test.com", null, null);

        // Act
        SessionManager.CurrentSession = session;

        // Assert
        SessionManager.CurrentSession.Should().BeSameAs(session);
    }

    [Fact]
    public void CreateHttpClient_WithoutIgnoreSsl_ReturnsHttpClient()
    {
        // Act
        using var client = SessionManager.CreateHttpClient(false);

        // Assert
        client.Should().NotBeNull();
        client.Should().BeOfType<HttpClient>();
    }

    [Fact]
    public void CreateHttpClient_WithIgnoreSsl_ReturnsHttpClient()
    {
        // Act
        using var client = SessionManager.CreateHttpClient(true);

        // Assert
        client.Should().NotBeNull();
        client.Should().BeOfType<HttpClient>();
    }

    [Fact]
    public void CreateSessionWithToken_ReplacesExistingSession()
    {
        // Arrange
        SessionManager.CreateSessionWithToken("https://old.com", "oldApp", "oldToken");

        // Act
        var newSession = SessionManager.CreateSessionWithToken("https://new.com", "newApp", "newToken");

        // Assert
        SessionManager.CurrentSession.Should().BeSameAs(newSession);
        SessionManager.CurrentSession!.URL.Should().Be("https://new.com");
        SessionManager.CurrentSession.AppID.Should().Be("newApp");
        SessionManager.CurrentSession.Token.Should().Be("newToken");
    }
}