using JdeScoping.ConfigManager.Models;
using JdeScoping.ConfigManager.ViewModels.Forms;

namespace JdeScoping.ConfigManager.Tests.ViewModels.Forms;

public class DataSyncFormViewModelTests
{
    [Fact]
    public void Constructor_InitializesFromModel()
    {
        // Arrange
        var model = new DataSyncSection
        {
            Enabled = true,
            MaxDegreeOfParallelism = 8,
            BatchSize = 25000
        };

        // Act
        var sut = new DataSyncFormViewModel(model, () => { });

        // Assert
        sut.Enabled.ShouldBeTrue();
        sut.MaxDegreeOfParallelism.ShouldBe(8);
        sut.BatchSize.ShouldBe(25000);
    }

    [Fact]
    public void PropertyChange_UpdatesModel()
    {
        // Arrange
        var model = new DataSyncSection { MaxDegreeOfParallelism = 4 };
        var sut = new DataSyncFormViewModel(model, () => { });

        // Act
        sut.MaxDegreeOfParallelism = 16;

        // Assert
        model.MaxDegreeOfParallelism.ShouldBe(16);
    }

    [Fact]
    public void PropertyChange_InvokesOnChanged()
    {
        // Arrange
        var model = new DataSyncSection();
        var changedInvoked = false;
        var sut = new DataSyncFormViewModel(model, () => changedInvoked = true);

        // Act
        sut.BatchSize = 10000;

        // Assert
        changedInvoked.ShouldBeTrue();
    }

    [Fact]
    public void PropertyChange_RaisesPropertyChanged()
    {
        // Arrange
        var model = new DataSyncSection();
        var sut = new DataSyncFormViewModel(model, () => { });
        var propertyChangedRaised = false;
        sut.PropertyChanged += (s, e) =>
        {
            if (e.PropertyName == nameof(DataSyncFormViewModel.LookbackMultiplier))
                propertyChangedRaised = true;
        };

        // Act
        sut.LookbackMultiplier = 2.5;

        // Assert
        propertyChangedRaised.ShouldBeTrue();
    }
}