//
// This file is part of the Tremble package by Tiny Goose.
// Copyright (c) 2024-2026 TinyGoose Ltd., All Rights Reserved.
//

using System.IO;

namespace TinyGoose.Tremble
{
	public static class EntityEnumWriter
	{
		public static void WriteCSharp(this EnumDefinition enumDefinition, string file, string namespaceOrNull)
		{
			using FileStream classFile = new(file, FileMode.Create, FileAccess.Write);
			using StreamWriter writer = new(classFile);

			writer.WriteLine($"// Enum '{enumDefinition.Name}'");
			writer.WriteLine($"// Generated by Tremble v{TrembleConsts.VERSION_STRING}");
			writer.WriteLine();

			writer.WriteLine("using UnityEngine;");
			writer.WriteLine("using TinyGoose.Tremble;");
			writer.WriteLine();

			bool hasNamespace = !namespaceOrNull.IsNullOrEmpty();

			if (hasNamespace)
			{
				writer.WriteLine($"namespace {namespaceOrNull}");
				writer.WriteLine("{");
			}


			if (hasNamespace)
			{
				writer.Write("\t");
			}
			writer.WriteLine($"public enum {enumDefinition.Name}");

			if (hasNamespace)
			{
				writer.Write("\t");
			}
			writer.WriteLine("{");

			for (int i = 0; i < enumDefinition.Values.Length; i++)
			{
				string value = enumDefinition.Values[i];

				writer.Write("\t");
				if (hasNamespace)
				{
					writer.Write("\t");
				}
				writer.WriteLine($"{value} = {i},");
			}
			if (hasNamespace)
			{
				writer.Write("\t");
			}
			writer.WriteLine("}");

			if (hasNamespace)
			{
				writer.WriteLine("}");
			}
		}
	}
}