using Omika.Core.Observability;

namespace Omika.Tests.Observability;

public class EventCodeTests
{
    [Fact]
    public void Create_Valid_ProducesCanonicalValue()
    {
        EventCode code = EventCode.Create("mob", "sync", 1);

        Assert.True(code.IsValid);
        Assert.Equal("OMK-MOB-SYNC-001", code.Value);
        Assert.Equal("MOB", code.Zone);
        Assert.Equal("SYNC", code.Domain);
        Assert.Equal(1, code.Number);
    }

    [Theory]
    [InlineData("M", "SYNC", 1)]
    [InlineData("MOBILE", "SYNC", 1)]
    [InlineData("MOB", "S", 1)]
    public void Create_InvalidZoneOrDomain_Throws(string zone, string domain, int number)
    {
        Assert.Throws<ArgumentException>(() => EventCode.Create(zone, domain, number));
    }

    [Theory]
    [InlineData("MOB", "SYNC", 0)]
    [InlineData("MOB", "SYNC", 1000)]
    [InlineData("MOB", "SYNC", -1)]
    public void Create_InvalidNumber_Throws(string zone, string domain, int number)
    {
        Assert.ThrowsAny<ArgumentException>(() => EventCode.Create(zone, domain, number));
    }

    [Fact]
    public void Parse_ValidValue_ReturnsValid()
    {
        EventCode code = EventCode.Parse("OMK-MOB-SYNC-001");

        Assert.True(code.IsValid);
        Assert.Equal("OMK-MOB-SYNC-001", code.Value);
    }

    [Fact]
    public void Parse_Lowercase_Canonicalizes()
    {
        EventCode code = EventCode.Parse("omk-mob-sync-001");

        Assert.True(code.IsValid);
        Assert.Equal("OMK-MOB-SYNC-001", code.Value);
    }

    [Theory]
    [InlineData(null)]
    [InlineData("")]
    [InlineData("   ")]
    [InlineData("BAD")]
    [InlineData("OMK-MOB-SYNC")]
    [InlineData("OMK-MOB-SYNC-0000")]
    [InlineData("OMK-MOB-SYNC-ABC")]
    [InlineData("XX-MOB-SYNC-001")]
    public void Parse_Invalid_ReturnsInvalid(string? value)
    {
        Assert.False(EventCode.Parse(value).IsValid);
    }

    [Fact]
    public void Default_IsInvalid()
    {
        Assert.False(default(EventCode).IsValid);
        Assert.Null(default(EventCode).Value);
    }

    [Fact]
    public void Equality_IsCaseSensitiveCanonical()
    {
        Assert.Equal(EventCode.Create("MOB", "SYNC", 1), EventCode.Parse("omk-mob-sync-001"));
    }
}