using JdeScoping.ConfigManager.Models;
using JdeScoping.ConfigManager.Services;

namespace JdeScoping.ConfigManager.Tests.Services;

public class ValidationServiceTests
{
    private readonly ValidationService _sut;

    public ValidationServiceTests()
    {
        _sut = new ValidationService();
    }

    [Fact]
    public void ValidateAppSettings_WithValidConfig_ReturnsNoErrors()
    {
        // Arrange
        var config = new ConfigModel
        {
            DataSync = new DataSyncSection { MaxDegreeOfParallelism = 4 }
        };

        // Act
        var result = _sut.ValidateAppSettings(config);

        // Assert
        result.IsValid.ShouldBeTrue();
        result.Errors.ShouldBeEmpty();
    }

    [Fact]
    public void ValidateAppSettings_WithInvalidParallelism_ReturnsError()
    {
        // Arrange
        var config = new ConfigModel
        {
            DataSync = new DataSyncSection { MaxDegreeOfParallelism = 0 }
        };

        // Act
        var result = _sut.ValidateAppSettings(config);

        // Assert
        result.IsValid.ShouldBeFalse();
        result.Errors.ShouldContain(e => e.Contains("MaxDegreeOfParallelism"));
    }

    [Fact]
    public void ValidatePipelines_WithDuplicateNames_ReturnsError()
    {
        // Arrange - duplicate keys not possible in dictionary, but empty names are invalid
        var config = new PipelinesConfigModel
        {
            Pipelines = new Dictionary<string, PipelineModel>
            {
                [""] = new PipelineModel()
            }
        };

        // Act
        var result = _sut.ValidatePipelines(config);

        // Assert
        result.IsValid.ShouldBeFalse();
    }

    [Fact]
    public void ValidatePipelines_WithInvalidConnection_ReturnsError()
    {
        // Arrange
        var config = new PipelinesConfigModel
        {
            Pipelines = new Dictionary<string, PipelineModel>
            {
                ["Test"] = new PipelineModel
                {
                    Source = new PipelineSource { Connection = "invalid" }
                }
            }
        };

        // Act
        var result = _sut.ValidatePipelines(config);

        // Assert
        result.IsValid.ShouldBeFalse();
        result.Errors.ShouldContain(e => e.Contains("Connection"));
    }
}