using MeetTheTeacher.Model;

namespace MeetTheTeacher.Test.Model;

public sealed class TimeFrameTests
{
    [Fact]
    public void Construction_Simple()
    {
        var start = new TimeOnly(14, 51);
        var end = new TimeOnly(17, 28);
        
        var tf = new TimeFrame(start, end);

        tf.Start.Should().Be(start);
        tf.End.Should().Be(end);
    }

    [Theory]
    [InlineData("10:00-12:00", "10:00", "12:00")]
    [InlineData("14:30-15:00", "14:30", "15:00")]
    [InlineData("09:15-09:45", "09:15", "09:45")]
    public void TryParse_Valid(string input, string expectedStart, string expectedEnd)
    {
        TimeFrame.TryParse(input, out TimeFrame? result).Should().BeTrue();

        result.Should().NotBeNull();
        result?.Start.Should().Be(TimeOnly.Parse(expectedStart));
        result?.End.Should().Be(TimeOnly.Parse(expectedEnd));
    }

    [Theory]
    [InlineData("12:00-10:00", "10:00", "12:00")]
    [InlineData("15:00-14:30", "14:30", "15:00")]
    public void TryParse_StartEndSwapped(string input, string expectedStart, string expectedEnd)
    {
        TimeFrame.TryParse(input, out TimeFrame? result).Should().BeTrue();

        result.Should().NotBeNull();
        result?.Start.Should().Be(TimeOnly.Parse(expectedStart));
        result?.End.Should().Be(TimeOnly.Parse(expectedEnd));
    }

    [Theory]
    [InlineData("invalid-12:00")]
    [InlineData("10:00-invalid")]
    [InlineData("25:00-12:00")]
    [InlineData("10:00-28:00")]
    [InlineData("10:62-22:00")]
    [InlineData("10:a2-22:00")]
    [InlineData("  ")]
    [InlineData("")]
    public void TryParse_InvalidInputs_ReturnsFalse(string input)
    {
        TimeFrame.TryParse(input, out TimeFrame? result).Should().BeFalse();

        result.Should().BeNull();
    }

    [Fact]
    public void StringRepresentation()
    {
        var timeFrame = new TimeFrame(new TimeOnly(10, 0), new TimeOnly(12, 0));

        timeFrame.ToString().Should().Be("10:00-12:00");
    }
}