using SantaClausInc.Core;

namespace SantaClausInc.Test;

public sealed class PreparationTests
{
    public PreparationTests()
    {
        RandomProvider.Random = new Random(54321);
    }

    [Fact]
    public void PrepareTours()
    {
        var list = new GoodAndNaughtyList(SampleData.CreateMinimalSampleChildren(false));

        var sleighs = Preparation.PrepareTours(list);

        sleighs.Count.Should().Be(2, "one sleigh for each city");
        CheckSleigh(sleighs[0], "Linz", [
            "#01: Travelling to city Linz",
            " #02: Moving to house with ID 1",
            "  #03: Putting into chimney: Book for Sepp (age 6)",
            "  #04: Putting into chimney: Model Car for Sepp (age 6)",
            "#05: Tour done, returning to Northpole HQ"
        ], "No pile loaded for naughty child => only 1, not 2");
        CheckSleigh(sleighs[1], "Leonding", [
            "#01: Travelling to city Leonding",
            " #02: Moving to house with ID 2",
            "  #03: Putting into chimney: Toy Blocks for Lisa (age 12)",
            "  #04: Putting into chimney: Book for Lisa (age 12)",
            "  #05: Putting into chimney: Doll for Lisa (age 12)",
            "  #06: Putting into chimney: Watercolors for Lisa (age 12)",
            "  #07: Putting into chimney: Model Car for Lisa (age 12)",
            "#08: Tour done, returning to Northpole HQ"
        ]);
    }

    private static void CheckSleigh(Sleigh? sleigh, string expectedCity,
                                    string[] expectedTourPlan, string pileReason = "")
    {
        if (sleigh is null)
        {
            Assert.Fail("Sleigh is null");
        }

        sleigh.TargetCity.Should().Be(expectedCity);

        var tourPlan = sleigh.ExecuteTour();
        tourPlan.Count.Should().Be(expectedTourPlan.Length, pileReason);

        for (var i = 0; i < tourPlan.Count; i++)
        {
            tourPlan[i].Should().Be(expectedTourPlan[i]);
        }
    }
}