using System.Reflection;
using SessionZero.SzfLib.Objects;

namespace SessionZero.SzfLib.Helpers;

public static class SzfHelper
{
    public static Type? FindSzfObjectTypeByAttributeType(string szfType)
    {
        var obj = Assembly
            .GetExecutingAssembly()
            .GetTypes()
            .FirstOrDefault(t => t.GetCustomAttribute(typeof(SzfObjectAttribute)) is not null && t.GetCustomAttribute<SzfObjectAttribute>()?.TypeIdentifier == szfType);
        
        if (obj is null) return null;
        
        return obj.IsAbstract || obj.IsInterface ? null : obj;
    }

    public static SzfError BasicSzfValidation(ISzfObject obj)
    {
        SzfError result = new SzfError();
        
        var metadataSection = obj.Sections.FirstOrDefault(s => s.Name == "Metadata");
        if (metadataSection is null) result.AddError("No metadata section found");
        
        if (obj.GetMetadataField("Name") == string.Empty) result.AddError("No metadata field name found");
        
        return result;
    }
}