using OpenNest.Data;

namespace OpenNest.Tests.Data;

public class NestMaterialSelectionTests
{
    [Fact]
    public void Apply_UnchangedName_KeepsGradeAndDensity()
    {
        var current = new Material("Stainless", "304", 0.289);

        var result = NestMaterialSelection.Apply(current, "Stainless");

        Assert.Equal("Stainless", result.Name);
        Assert.Equal("304", result.Grade);
        Assert.Equal(0.289, result.Density);
    }

    [Fact]
    public void Apply_NameDifferingOnlyInSpacingAndCase_KeepsGradeAndDensityAndTakesTypedName()
    {
        var current = new Material("Cold Rolled Steel", "1008", 0.284);

        var result = NestMaterialSelection.Apply(current, " cold  rolled\tsteel ");

        Assert.Equal(" cold  rolled\tsteel ", result.Name);
        Assert.Equal("1008", result.Grade);
        Assert.Equal(0.284, result.Density);
    }

    [Fact]
    public void Apply_ChangedName_GetsNameOnly()
    {
        var current = new Material("Stainless", "304", 0.289);

        var result = NestMaterialSelection.Apply(current, "Aluminum");

        Assert.Equal("Aluminum", result.Name);
        Assert.True(string.IsNullOrEmpty(result.Grade));
        Assert.Equal(0, result.Density);
    }

    [Fact]
    public void Apply_ClearedName_GetsEmptyNameOnly()
    {
        var current = new Material("Stainless", "304", 0.289);

        var result = NestMaterialSelection.Apply(current, "");

        Assert.Equal("", result.Name);
        Assert.True(string.IsNullOrEmpty(result.Grade));
        Assert.Equal(0, result.Density);
    }

    [Fact]
    public void Apply_NoCurrentMaterial_GetsNameOnly()
    {
        var result = NestMaterialSelection.Apply(null, "Stainless");

        Assert.Equal("Stainless", result.Name);
        Assert.True(string.IsNullOrEmpty(result.Grade));
        Assert.Equal(0, result.Density);
    }

    [Fact]
    public void Apply_ReturnsCopy_LeavingCurrentMaterialUnchanged()
    {
        var current = new Material("Stainless", "304", 0.289);

        var result = NestMaterialSelection.Apply(current, "stainless");
        result.Grade = "316";
        result.Density = 1;

        Assert.NotSame(current, result);
        Assert.Equal("Stainless", current.Name);
        Assert.Equal("304", current.Grade);
        Assert.Equal(0.289, current.Density);
    }

    [Theory]
    [InlineData("Carbon Steel", "CARBON STEEL")]
    [InlineData("  carbon \t steel\n", "CARBON STEEL")]
    [InlineData("", "")]
    [InlineData("   ", "")]
    [InlineData(null, "")]
    public void SharedListNamesKey_TrimsCollapsesWhitespaceAndUppercases(string? name, string expected)
    {
        Assert.Equal(expected, SharedListNames.Key(name));
    }
}