using HSchool.Content;

namespace HSchool.Schedule.Tests;

public class TimetableClockTests
{
    private readonly DefCatalog _catalog = Fixtures.Catalog();
    private static readonly LessonPlacement MathOnTuesdayPeriod3 = new(
        "c5A",
        "Mathematics",
        "t1",
        "classroom-101",
        Day: 1,
        Period: 3);

    [Fact]
    public void TuesdayTenTwenty_IsThePlacedLesson()
    {
        var table = new Timetable([MathOnTuesdayPeriod3], []);
        var occurring = TimetableClock.OccurringAt(
            table,
            _catalog,
            new DateTime(2012, 4, 3, 10, 20, 0, DateTimeKind.Utc),
            weekDays: 5);

        Assert.Equal([MathOnTuesdayPeriod3], occurring);
    }

    [Fact]
    public void TuesdayTenFifteen_IsABreakAndEmpty()
    {
        var table = new Timetable([MathOnTuesdayPeriod3], []);
        var occurring = TimetableClock.OccurringAt(
            table,
            _catalog,
            new DateTime(2012, 4, 3, 10, 15, 0, DateTimeKind.Utc),
            weekDays: 5);

        Assert.Empty(occurring);
        Assert.Equal(
            new OccupancyKey(new DateOnly(2012, 4, 3), DaySlotKind.Break, 2),
            TimetableClock.Key(_catalog, new DateTime(2012, 4, 3, 10, 15, 0, DateTimeKind.Utc), 5));
    }

    [Fact]
    public void Saturday_IsEmpty()
    {
        var table = new Timetable([MathOnTuesdayPeriod3], []);
        var occurring = TimetableClock.OccurringAt(
            table,
            _catalog,
            new DateTime(2012, 4, 7, 10, 20, 0, DateTimeKind.Utc),
            weekDays: 5);

        Assert.Empty(occurring);
    }
}