using JdeScoping.ConfigManager.Core.Constants;
using JdeScoping.ConfigManager.Ui.ViewModels.Dialogs;

namespace JdeScoping.ConfigManager.Ui.Tests.ViewModels.Dialogs;

public class UnlockStoreDialogViewModelTests
{
    [Fact]
    public void Constructor_SetsStorePathFromParameter()
    {
        // Arrange
        var storePath = "/path/to/store.secure";

        // Act
        var sut = new UnlockStoreDialogViewModel(storePath);

        // Assert
        sut.StorePath.ShouldBe(storePath);
    }

    [Fact]
    public void Constructor_ThrowsOnNullStorePath()
    {
        // Act & Assert
        Should.Throw<ArgumentNullException>(() => new UnlockStoreDialogViewModel(null!));
    }

    [Fact]
    public void StorePath_IsReadOnly()
    {
        // Arrange
        var sut = new UnlockStoreDialogViewModel("/path/to/store.secure");

        // Assert - StorePath property has no setter, verified by checking it returns what was passed
        sut.StorePath.ShouldBe("/path/to/store.secure");
    }

    [Fact]
    public void KeyFilePath_WhenEmpty_IsValidReturnsFalse()
    {
        // Arrange
        var sut = new UnlockStoreDialogViewModel("/path/to/store.secure")
        {
            KeyFilePath = ""
        };

        // Act & Assert
        sut.IsValid.ShouldBeFalse();
    }

    [Fact]
    public void KeyFilePath_WhenEmpty_ValidationErrorReturnsKeyFilePathRequired()
    {
        // Arrange
        var sut = new UnlockStoreDialogViewModel("/path/to/store.secure")
        {
            KeyFilePath = ""
        };

        // Act & Assert
        sut.ValidationError.ShouldBe(SecureStoreStrings.KeyFilePathRequired);
    }

    [Fact]
    public void KeyFilePath_WhenWhitespace_IsValidReturnsFalse()
    {
        // Arrange
        var sut = new UnlockStoreDialogViewModel("/path/to/store.secure")
        {
            KeyFilePath = "   "
        };

        // Act & Assert
        sut.IsValid.ShouldBeFalse();
        sut.ValidationError.ShouldBe(SecureStoreStrings.KeyFilePathRequired);
    }

    [Fact]
    public void KeyFilePath_WhenFileDoesNotExist_IsValidReturnsFalse()
    {
        // Arrange
        var sut = new UnlockStoreDialogViewModel("/path/to/store.secure")
        {
            KeyFilePath = "/nonexistent/path/to/key.key"
        };

        // Act & Assert
        sut.IsValid.ShouldBeFalse();
    }

    [Fact]
    public void KeyFilePath_WhenFileDoesNotExist_ValidationErrorReturnsKeyFileNotFound()
    {
        // Arrange
        var sut = new UnlockStoreDialogViewModel("/path/to/store.secure")
        {
            KeyFilePath = "/nonexistent/path/to/key.key"
        };

        // Act & Assert
        sut.ValidationError.ShouldBe(SecureStoreStrings.KeyFileNotFound);
    }

    [Fact]
    public void KeyFilePath_WhenChanged_RaisesPropertyChanged()
    {
        // Arrange
        var sut = new UnlockStoreDialogViewModel("/path/to/store.secure");
        var propertyChangedRaised = false;
        sut.PropertyChanged += (s, e) =>
        {
            if (e.PropertyName == nameof(UnlockStoreDialogViewModel.KeyFilePath))
                propertyChangedRaised = true;
        };

        // Act
        sut.KeyFilePath = "/new/key/path";

        // Assert
        propertyChangedRaised.ShouldBeTrue();
    }

    [Fact]
    public void KeyFilePath_WhenChanged_RaisesIsValidPropertyChanged()
    {
        // Arrange
        var sut = new UnlockStoreDialogViewModel("/path/to/store.secure");
        var isValidPropertyChangedRaised = false;
        sut.PropertyChanged += (s, e) =>
        {
            if (e.PropertyName == nameof(UnlockStoreDialogViewModel.IsValid))
                isValidPropertyChangedRaised = true;
        };

        // Act
        sut.KeyFilePath = "/new/key/path";

        // Assert
        isValidPropertyChangedRaised.ShouldBeTrue();
    }

    [Fact]
    public void KeyFilePath_WhenChanged_RaisesValidationErrorPropertyChanged()
    {
        // Arrange
        var sut = new UnlockStoreDialogViewModel("/path/to/store.secure");
        var validationErrorPropertyChangedRaised = false;
        sut.PropertyChanged += (s, e) =>
        {
            if (e.PropertyName == nameof(UnlockStoreDialogViewModel.ValidationError))
                validationErrorPropertyChangedRaised = true;
        };

        // Act
        sut.KeyFilePath = "/new/key/path";

        // Assert
        validationErrorPropertyChangedRaised.ShouldBeTrue();
    }

    [Fact]
    public void BrowseKeyFilePathCommand_IsInitialized()
    {
        // Arrange & Act
        var sut = new UnlockStoreDialogViewModel("/path/to/store.secure");

        // Assert
        sut.BrowseKeyFilePathCommand.ShouldNotBeNull();
    }
}