using System.CommandLine;
using JdeScoping.ConfigManager.Cli.Commands;
using JdeScoping.ConfigManager.Core.Models;
using JdeScoping.ConfigManager.Core.Services;
using Microsoft.Extensions.DependencyInjection;

namespace JdeScoping.ConfigManager.Cli.Tests.Commands;

[Collection("Console Tests")]
public class ConnectionCommandsTests
{
    private readonly IServiceProvider _serviceProvider;
    private readonly IConfigFileService _configFileService;
    private readonly IAutoDiscoveryService _autoDiscoveryService;
    private readonly Option<string?> _configPathOption;
    private readonly Option<bool> _verboseOption;
    private readonly Option<bool> _quietOption;

    public ConnectionCommandsTests()
    {
        _configFileService = Substitute.For<IConfigFileService>();
        _autoDiscoveryService = Substitute.For<IAutoDiscoveryService>();

        var services = new ServiceCollection();
        services.AddSingleton(_configFileService);
        services.AddSingleton(_autoDiscoveryService);
        services.AddTestLogging();
        _serviceProvider = services.BuildServiceProvider();

        _configPathOption = new Option<string?>(["--config-path", "-c"]);
        _verboseOption = new Option<bool>(["--verbose", "-v"]);
        _quietOption = new Option<bool>(["--quiet", "-q"]);
    }

    [Fact]
    public void CreateListCommand_ReturnsCommand()
    {
        // Act
        var command = ConnectionCommands.CreateListCommand(
            _serviceProvider, _configPathOption, _verboseOption, _quietOption);

        // Assert
        command.ShouldNotBeNull();
        command.Name.ShouldBe("list");
    }

    [Fact]
    public void CreateShowCommand_ReturnsCommandWithNameArgument()
    {
        // Act
        var command = ConnectionCommands.CreateShowCommand(
            _serviceProvider, _configPathOption, _verboseOption, _quietOption);

        // Assert
        command.ShouldNotBeNull();
        command.Name.ShouldBe("show");
        command.Arguments.ShouldContain(a => a.Name == "name");
    }

    [Fact]
    public void CreateAddCommand_ReturnsCommandWithOptions()
    {
        // Act
        var command = ConnectionCommands.CreateAddCommand(
            _serviceProvider, _configPathOption, _verboseOption, _quietOption);

        // Assert
        command.ShouldNotBeNull();
        command.Name.ShouldBe("add");
        command.Arguments.ShouldContain(a => a.Name == "name");
        command.Options.ShouldContain(o => o.Name == "provider");
        command.Options.ShouldContain(o => o.Name == "server");
        command.Options.ShouldContain(o => o.Name == "database");
        command.Options.ShouldContain(o => o.Name == "user");
        command.Options.ShouldContain(o => o.Name == "password");
        command.Options.ShouldContain(o => o.Name == "port");
    }

    [Fact]
    public void CreateRemoveCommand_ReturnsCommandWithNameArgument()
    {
        // Act
        var command = ConnectionCommands.CreateRemoveCommand(
            _serviceProvider, _configPathOption, _verboseOption, _quietOption);

        // Assert
        command.ShouldNotBeNull();
        command.Name.ShouldBe("remove");
        command.Arguments.ShouldContain(a => a.Name == "name");
    }

    [Fact]
    public async Task ListCommand_WithNoConfigFolder_ReturnsError()
    {
        // Arrange
        _autoDiscoveryService.FindConfigFolderAsync(Arg.Any<CancellationToken>())
            .Returns(Task.FromResult<string?>(null));

        var command = ConnectionCommands.CreateListCommand(
            _serviceProvider, _configPathOption, _verboseOption, _quietOption);
        var rootCommand = new RootCommand { command };
        rootCommand.AddGlobalOption(_configPathOption);
        rootCommand.AddGlobalOption(_verboseOption);
        rootCommand.AddGlobalOption(_quietOption);

        // Act
        var exitCode = await rootCommand.InvokeAsync(["list"]);

        // Assert - command completes without throwing
        command.ShouldNotBeNull();
    }

    [Fact]
    public void ListCommand_HasCorrectDescription()
    {
        // Arrange & Act
        var command = ConnectionCommands.CreateListCommand(
            _serviceProvider, _configPathOption, _verboseOption, _quietOption);

        // Assert
        command.Description.ShouldBe("List all connection names and providers");
    }

    [Fact]
    public async Task ShowCommand_WithValidConnection_ShowsDetailsWithMaskedPassword()
    {
        // Arrange
        var tempDir = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());
        Directory.CreateDirectory(tempDir);
        var appSettingsPath = Path.Combine(tempDir, "appsettings.json");
        File.WriteAllText(appSettingsPath, "{}");

        try
        {
            _autoDiscoveryService.FindConfigFolderAsync(Arg.Any<CancellationToken>())
                .Returns(Task.FromResult<string?>(tempDir));

            var config = new ConfigModel
            {
                ConnectionStrings = new ConnectionStringsSection
                {
                    Entries =
                    [
                        new ConnectionStringEntry
                        {
                            Name = "TestConnection",
                            Provider = ConnectionProvider.SqlServer,
                            Server = "localhost",
                            Database = "TestDb",
                            UserId = "sa",
                            Password = "SuperSecretPassword123!"
                        }
                    ]
                }
            };

            _configFileService.LoadAppSettingsAsync(appSettingsPath, Arg.Any<CancellationToken>())
                .Returns(Task.FromResult(config));

            var command = ConnectionCommands.CreateShowCommand(
                _serviceProvider, _configPathOption, _verboseOption, _quietOption);
            var rootCommand = new RootCommand { command };
            rootCommand.AddGlobalOption(_configPathOption);
            rootCommand.AddGlobalOption(_verboseOption);
            rootCommand.AddGlobalOption(_quietOption);

            // Capture console output
            var originalOut = Console.Out;
            using var writer = new StringWriter();
            Console.SetOut(writer);

            try
            {
                // Act
                await rootCommand.InvokeAsync(["show", "TestConnection"]);

                // Assert
                var output = writer.ToString();
                output.ShouldContain("TestConnection");
                output.ShouldContain("SqlServer");
                output.ShouldContain("localhost");
                output.ShouldContain("TestDb");
                output.ShouldContain("********"); // Password should be masked
                output.ShouldNotContain("SuperSecretPassword123!"); // Actual password should not appear
            }
            finally
            {
                Console.SetOut(originalOut);
            }
        }
        finally
        {
            Directory.Delete(tempDir, true);
        }
    }

    [Fact]
    public async Task ShowCommand_WithNonExistentConnection_ReturnsError()
    {
        // Arrange
        var tempDir = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());
        Directory.CreateDirectory(tempDir);
        var appSettingsPath = Path.Combine(tempDir, "appsettings.json");
        File.WriteAllText(appSettingsPath, "{}");

        try
        {
            _autoDiscoveryService.FindConfigFolderAsync(Arg.Any<CancellationToken>())
                .Returns(Task.FromResult<string?>(tempDir));

            var config = new ConfigModel();

            _configFileService.LoadAppSettingsAsync(appSettingsPath, Arg.Any<CancellationToken>())
                .Returns(Task.FromResult(config));

            var command = ConnectionCommands.CreateShowCommand(
                _serviceProvider, _configPathOption, _verboseOption, _quietOption);
            var rootCommand = new RootCommand { command };
            rootCommand.AddGlobalOption(_configPathOption);
            rootCommand.AddGlobalOption(_verboseOption);
            rootCommand.AddGlobalOption(_quietOption);

            // Capture console output (Serilog writes all output to stdout)
            var originalOut = Console.Out;
            using var writer = new StringWriter();
            Console.SetOut(writer);

            try
            {
                // Act
                await rootCommand.InvokeAsync(["show", "NonExistent"]);

                // Assert
                var output = writer.ToString();
                output.ShouldContain("not found");
            }
            finally
            {
                Console.SetOut(originalOut);
            }
        }
        finally
        {
            Directory.Delete(tempDir, true);
        }
    }

    [Fact]
    public async Task AddCommand_WithNewConnection_AddsConnection()
    {
        // Arrange
        var tempDir = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());
        Directory.CreateDirectory(tempDir);
        var appSettingsPath = Path.Combine(tempDir, "appsettings.json");
        File.WriteAllText(appSettingsPath, "{}");

        try
        {
            _autoDiscoveryService.FindConfigFolderAsync(Arg.Any<CancellationToken>())
                .Returns(Task.FromResult<string?>(tempDir));

            var config = new ConfigModel();

            _configFileService.LoadAppSettingsAsync(appSettingsPath, Arg.Any<CancellationToken>())
                .Returns(Task.FromResult(config));

            var command = ConnectionCommands.CreateAddCommand(
                _serviceProvider, _configPathOption, _verboseOption, _quietOption);
            var rootCommand = new RootCommand { command };
            rootCommand.AddGlobalOption(_configPathOption);
            rootCommand.AddGlobalOption(_verboseOption);
            rootCommand.AddGlobalOption(_quietOption);

            // Capture console output
            var originalOut = Console.Out;
            using var writer = new StringWriter();
            Console.SetOut(writer);

            try
            {
                // Act
                await rootCommand.InvokeAsync(["add", "NewConnection", "--server", "localhost", "--database", "TestDb"]);

                // Assert
                var output = writer.ToString();
                output.ShouldContain("added successfully");
                await _configFileService.Received(1).SaveAppSettingsAsync(appSettingsPath, Arg.Any<ConfigModel>(), Arg.Any<CancellationToken>());
            }
            finally
            {
                Console.SetOut(originalOut);
            }
        }
        finally
        {
            Directory.Delete(tempDir, true);
        }
    }

    [Fact]
    public async Task AddCommand_WithExistingConnection_ReturnsError()
    {
        // Arrange
        var tempDir = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());
        Directory.CreateDirectory(tempDir);
        var appSettingsPath = Path.Combine(tempDir, "appsettings.json");
        File.WriteAllText(appSettingsPath, "{}");

        try
        {
            _autoDiscoveryService.FindConfigFolderAsync(Arg.Any<CancellationToken>())
                .Returns(Task.FromResult<string?>(tempDir));

            var config = new ConfigModel
            {
                ConnectionStrings = new ConnectionStringsSection
                {
                    Entries =
                    [
                        new ConnectionStringEntry { Name = "ExistingConnection" }
                    ]
                }
            };

            _configFileService.LoadAppSettingsAsync(appSettingsPath, Arg.Any<CancellationToken>())
                .Returns(Task.FromResult(config));

            var command = ConnectionCommands.CreateAddCommand(
                _serviceProvider, _configPathOption, _verboseOption, _quietOption);
            var rootCommand = new RootCommand { command };
            rootCommand.AddGlobalOption(_configPathOption);
            rootCommand.AddGlobalOption(_verboseOption);
            rootCommand.AddGlobalOption(_quietOption);

            // Capture console output (Serilog writes all output to stdout)
            var originalOut = Console.Out;
            using var writer = new StringWriter();
            Console.SetOut(writer);

            try
            {
                // Act
                await rootCommand.InvokeAsync(["add", "ExistingConnection", "--server", "localhost"]);

                // Assert
                var output = writer.ToString();
                output.ShouldContain("already exists");
            }
            finally
            {
                Console.SetOut(originalOut);
            }
        }
        finally
        {
            Directory.Delete(tempDir, true);
        }
    }

    [Fact]
    public void RemoveCommand_HasCorrectDescription()
    {
        // Arrange & Act
        var command = ConnectionCommands.CreateRemoveCommand(
            _serviceProvider, _configPathOption, _verboseOption, _quietOption);

        // Assert
        command.Description.ShouldBe("Remove a connection");
    }

    [Fact]
    public async Task RemoveCommand_WithNonExistentConnection_ReturnsError()
    {
        // Arrange
        var tempDir = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());
        Directory.CreateDirectory(tempDir);
        var appSettingsPath = Path.Combine(tempDir, "appsettings.json");
        File.WriteAllText(appSettingsPath, "{}");

        try
        {
            _autoDiscoveryService.FindConfigFolderAsync(Arg.Any<CancellationToken>())
                .Returns(Task.FromResult<string?>(tempDir));

            var config = new ConfigModel();

            _configFileService.LoadAppSettingsAsync(appSettingsPath, Arg.Any<CancellationToken>())
                .Returns(Task.FromResult(config));

            var command = ConnectionCommands.CreateRemoveCommand(
                _serviceProvider, _configPathOption, _verboseOption, _quietOption);
            var rootCommand = new RootCommand { command };
            rootCommand.AddGlobalOption(_configPathOption);
            rootCommand.AddGlobalOption(_verboseOption);
            rootCommand.AddGlobalOption(_quietOption);

            // Capture console output (Serilog writes all output to stdout)
            var originalOut = Console.Out;
            using var writer = new StringWriter();
            Console.SetOut(writer);

            try
            {
                // Act
                await rootCommand.InvokeAsync(["remove", "NonExistent"]);

                // Assert
                var output = writer.ToString();
                output.ShouldContain("not found");
            }
            finally
            {
                Console.SetOut(originalOut);
            }
        }
        finally
        {
            Directory.Delete(tempDir, true);
        }
    }

    // ===== Connection Update Command Tests =====

    [Fact]
    public void CreateUpdateCommand_ReturnsCommandWithOptions()
    {
        // Act
        var command = ConnectionCommands.CreateUpdateCommand(
            _serviceProvider, _configPathOption, _verboseOption, _quietOption);

        // Assert
        command.ShouldNotBeNull();
        command.Name.ShouldBe("update");
        command.Arguments.ShouldContain(a => a.Name == "name");
        command.Options.ShouldContain(o => o.Name == "provider");
        command.Options.ShouldContain(o => o.Name == "server");
        command.Options.ShouldContain(o => o.Name == "database");
        command.Options.ShouldContain(o => o.Name == "user");
        command.Options.ShouldContain(o => o.Name == "password");
        command.Options.ShouldContain(o => o.Name == "port");
        command.Options.ShouldContain(o => o.Name == "service-name");
        command.Options.ShouldContain(o => o.Name == "raw");
    }

    [Fact]
    public void UpdateCommand_HasCorrectDescription()
    {
        // Arrange & Act
        var command = ConnectionCommands.CreateUpdateCommand(
            _serviceProvider, _configPathOption, _verboseOption, _quietOption);

        // Assert
        command.Description.ShouldBe("Update an existing connection");
    }

    [Fact]
    public async Task UpdateCommand_WithNonExistentConnection_ReturnsError()
    {
        // Arrange
        var tempDir = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());
        Directory.CreateDirectory(tempDir);
        var appSettingsPath = Path.Combine(tempDir, "appsettings.json");
        File.WriteAllText(appSettingsPath, "{}");

        try
        {
            _autoDiscoveryService.FindConfigFolderAsync(Arg.Any<CancellationToken>())
                .Returns(Task.FromResult<string?>(tempDir));

            var config = new ConfigModel();

            _configFileService.LoadAppSettingsAsync(appSettingsPath, Arg.Any<CancellationToken>())
                .Returns(Task.FromResult(config));

            var command = ConnectionCommands.CreateUpdateCommand(
                _serviceProvider, _configPathOption, _verboseOption, _quietOption);
            var rootCommand = new RootCommand { command };
            rootCommand.AddGlobalOption(_configPathOption);
            rootCommand.AddGlobalOption(_verboseOption);
            rootCommand.AddGlobalOption(_quietOption);

            // Capture console output (Serilog writes all output to stdout)
            var originalOut = Console.Out;
            using var writer = new StringWriter();
            Console.SetOut(writer);

            try
            {
                // Act
                await rootCommand.InvokeAsync(["update", "NonExistent", "--server", "newhost"]);

                // Assert
                var output = writer.ToString();
                output.ShouldContain("not found");
            }
            finally
            {
                Console.SetOut(originalOut);
            }
        }
        finally
        {
            Directory.Delete(tempDir, true);
        }
    }

    [Fact]
    public void UpdateCommand_AllOptionsExist()
    {
        // Arrange & Act
        var command = ConnectionCommands.CreateUpdateCommand(
            _serviceProvider, _configPathOption, _verboseOption, _quietOption);

        // Assert - Verify all options exist
        command.Options.ShouldContain(o => o.Name == "provider");
        command.Options.ShouldContain(o => o.Name == "server");
        command.Options.ShouldContain(o => o.Name == "database");
        command.Options.ShouldContain(o => o.Name == "user");
        command.Options.ShouldContain(o => o.Name == "password");
        command.Options.ShouldContain(o => o.Name == "port");
        command.Options.ShouldContain(o => o.Name == "service-name");
        command.Options.ShouldContain(o => o.Name == "raw");
    }

    [Fact]
    public async Task UpdateCommand_WithValidChange_UpdatesAndSaves()
    {
        // Arrange
        var tempDir = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());
        Directory.CreateDirectory(tempDir);
        var appSettingsPath = Path.Combine(tempDir, "appsettings.json");
        File.WriteAllText(appSettingsPath, "{}");

        try
        {
            _autoDiscoveryService.FindConfigFolderAsync(Arg.Any<CancellationToken>())
                .Returns(Task.FromResult<string?>(tempDir));

            var config = new ConfigModel
            {
                ConnectionStrings = new ConnectionStringsSection
                {
                    Entries =
                    [
                        new ConnectionStringEntry
                        {
                            Name = "TestConnection",
                            Provider = ConnectionProvider.SqlServer,
                            Server = "localhost",
                            Database = "OldDb"
                        }
                    ]
                }
            };

            _configFileService.LoadAppSettingsAsync(appSettingsPath, Arg.Any<CancellationToken>())
                .Returns(Task.FromResult(config));

            var command = ConnectionCommands.CreateUpdateCommand(
                _serviceProvider, _configPathOption, _verboseOption, _quietOption);
            var rootCommand = new RootCommand { command };
            rootCommand.AddGlobalOption(_configPathOption);
            rootCommand.AddGlobalOption(_verboseOption);
            rootCommand.AddGlobalOption(_quietOption);

            // Capture console output
            var originalOut = Console.Out;
            using var writer = new StringWriter();
            Console.SetOut(writer);

            try
            {
                // Act
                await rootCommand.InvokeAsync(["update", "TestConnection", "--database", "NewDb"]);

                // Assert
                var output = writer.ToString();
                output.ShouldContain("updated successfully");
                await _configFileService.Received(1).SaveAppSettingsAsync(appSettingsPath, Arg.Any<ConfigModel>(), Arg.Any<CancellationToken>());
            }
            finally
            {
                Console.SetOut(originalOut);
            }
        }
        finally
        {
            Directory.Delete(tempDir, true);
        }
    }

    [Fact]
    public async Task UpdateCommand_WithMultipleChanges_UpdatesAllProperties()
    {
        // Arrange
        var tempDir = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());
        Directory.CreateDirectory(tempDir);
        var appSettingsPath = Path.Combine(tempDir, "appsettings.json");
        File.WriteAllText(appSettingsPath, "{}");

        try
        {
            _autoDiscoveryService.FindConfigFolderAsync(Arg.Any<CancellationToken>())
                .Returns(Task.FromResult<string?>(tempDir));

            var config = new ConfigModel
            {
                ConnectionStrings = new ConnectionStringsSection
                {
                    Entries =
                    [
                        new ConnectionStringEntry
                        {
                            Name = "TestConnection",
                            Provider = ConnectionProvider.SqlServer,
                            Server = "localhost",
                            Database = "OldDb",
                            UserId = "olduser"
                        }
                    ]
                }
            };

            _configFileService.LoadAppSettingsAsync(appSettingsPath, Arg.Any<CancellationToken>())
                .Returns(Task.FromResult(config));

            var command = ConnectionCommands.CreateUpdateCommand(
                _serviceProvider, _configPathOption, _verboseOption, _quietOption);
            var rootCommand = new RootCommand { command };
            rootCommand.AddGlobalOption(_configPathOption);
            rootCommand.AddGlobalOption(_verboseOption);
            rootCommand.AddGlobalOption(_quietOption);

            // Capture console output
            var originalOut = Console.Out;
            using var writer = new StringWriter();
            Console.SetOut(writer);

            try
            {
                // Act
                await rootCommand.InvokeAsync(["update", "TestConnection", "--server", "newhost", "--database", "NewDb", "--user", "newuser"]);

                // Assert
                var output = writer.ToString();
                output.ShouldContain("updated successfully");

                // Verify the config was updated
                config.ConnectionStrings.Entries[0].Server.ShouldBe("newhost");
                config.ConnectionStrings.Entries[0].Database.ShouldBe("NewDb");
                config.ConnectionStrings.Entries[0].UserId.ShouldBe("newuser");
            }
            finally
            {
                Console.SetOut(originalOut);
            }
        }
        finally
        {
            Directory.Delete(tempDir, true);
        }
    }
}