using Core.Parsers.EventOccurrence;
using NUnit.Framework;

namespace Tests.Parsers.EventOccurrence;

[TestFixture]
public class TimeLocationParser_Tests
{
    [Test]
    public void Parse_TimeAndLocation_ExtractsBoth()
    {
        // Act
        TimeLocationParser.Parse("10:30 a.m. Room 101", 
            out string time, out string location);

        // Assert
        Assert.That(time, Is.EqualTo("10:30 a.m."));
        Assert.That(location, Is.EqualTo("Room 101"));
    }

    [Test]
    public void Parse_TimeRangeAndLocation_ExtractsTimeRangeAndLocation()
    {
        // Act
        TimeLocationParser.Parse("10:00 a.m. - 12:00 p.m. Room 202",
            out string time, out string location);

        // Assert
        Assert.That(time, Is.EqualTo("10:00 a.m. - 12:00 p.m."));
        Assert.That(location, Is.EqualTo("Room 202"));
    }

    [Test]
    public void Parse_NOONAndLocation_ExtractsBoth()
    {
        // Act
        TimeLocationParser.Parse("NOON Hall C",
            out string time, out string location);

        // Assert
        Assert.That(time, Is.EqualTo("NOON"));
        Assert.That(location, Is.EqualTo("Hall C"));
    }

    [Test]
    public void Parse_TimeOnly_NoLocation()
    {
        // Act
        TimeLocationParser.Parse("3:00 p.m.",
            out string time, out string location);

        // Assert
        Assert.That(time, Is.EqualTo("3:00 p.m."));
        Assert.That(location, Is.Empty);
    }

    [Test]
    public void Parse_AnyLocation_ExtractsLocationWithoutValidation()
    {
        // Act
        TimeLocationParser.Parse("10:00 a.m. Unknown Location",
            out string time, out string location);

        // Assert
        Assert.That(time, Is.EqualTo("10:00 a.m."));
        Assert.That(location, Is.EqualTo("Unknown Location"));
    }

    [Test]
    public void Parse_LocationWithTimeComponent_CleansTimeComponent()
    {
        // Act
        TimeLocationParser.Parse("10:00 a.m. - 12:15 p.m. Exhibit Hall C",
            out string time, out string location);

        // Assert
        Assert.That(time, Is.EqualTo("10:00 a.m. - 12:15 p.m."));
        Assert.That(location, Is.EqualTo("Exhibit Hall C"));
    }

    [Test]
    public void Parse_AnyLocation_ExtractsAsIs()
    {
        // Act
        TimeLocationParser.Parse("3:00 p.m. Room A",
            out string time, out string location);

        // Assert
        Assert.That(time, Is.EqualTo("3:00 p.m."));
        Assert.That(location, Is.EqualTo("Room A"));
    }

    [Test]
    public void CleanLocationText_RemovesTimeAtStart()
    {
        // Act
        var result = TimeLocationParser.CleanLocationText("- 12:15 p.m. Exhibit Hall C");

        // Assert
        Assert.That(result, Is.EqualTo("Exhibit Hall C"));
    }

    [Test]
    public void CleanLocationText_RemovesTimeWithoutDash()
    {
        // Act
        var result = TimeLocationParser.CleanLocationText("12:15 p.m. Exhibit Hall C");

        // Assert
        Assert.That(result, Is.EqualTo("Exhibit Hall C"));
    }

    [Test]
    public void CleanLocationText_RemovesNOONAtStart()
    {
        // Act
        var result = TimeLocationParser.CleanLocationText("- NOON Exhibit Hall C");

        // Assert
        Assert.That(result, Is.EqualTo("Exhibit Hall C"));
    }

    [Test]
    public void CleanLocationText_OnlyTime_ReturnsEmpty()
    {
        // Act
        var result = TimeLocationParser.CleanLocationText("12:15 p.m.");

        // Assert
        Assert.That(result, Is.Empty);
    }

    [Test]
    public void CleanLocationText_EmptyString_ReturnsEmpty()
    {
        // Act
        var result = TimeLocationParser.CleanLocationText("");

        // Assert
        Assert.That(result, Is.Empty);
    }

    [Test]
    public void CleanLocationText_WhitespaceOnly_ReturnsEmpty()
    {
        // Act
        var result = TimeLocationParser.CleanLocationText("   ");

        // Assert
        Assert.That(result, Is.Empty);
    }

    [Test]
    public void CleanLocationText_NoTimeComponent_ReturnsOriginal()
    {
        // Act
        var result = TimeLocationParser.CleanLocationText("Exhibit Hall C");

        // Assert
        Assert.That(result, Is.EqualTo("Exhibit Hall C"));
    }
}