#nullable enable
using System;
using Sandbox;

namespace Editor.Mcp
{
	internal static class ProceduralMeshDriver
	{
		public static ToolOutcome<object> GenerateMesh( string? targetName, string shape = "box", float width = 100f, float height = 100f, float depth = 100f, string? materialPath = null, bool addCollider = true )
		{
			var scene = EditorRuntime.ResolveActiveScene();
			if ( scene == null )
			{
				return ToolOutcome<object>.Failure( null, ToolStatus.Unavailable, "mesh.no_scene", "No active scene loaded." );
			}

			var name = string.IsNullOrWhiteSpace( targetName ) ? $"Procedural {shape}" : targetName;
			var go = new GameObject( true, name );

			var renderer = go.Components.Create<ModelRenderer>();
			renderer.Model = shape.ToLowerInvariant() switch
			{
				"sphere" => Model.Sphere,
				"plane" => Model.Plane,
				_ => Model.Cube
			};

			if ( !string.IsNullOrWhiteSpace( materialPath ) )
			{
				var mat = Material.Load( materialPath );
				if ( mat != null )
				{
					renderer.MaterialOverride = mat;
				}
			}

			go.WorldScale = new Vector3( width / 100f, height / 100f, depth / 100f );

			if ( addCollider )
			{
				go.Components.Create<BoxCollider>();
			}

			return ToolOutcome<object>.Ready( new
			{
				GameObject = go.Name,
				Id = go.Id.ToString(),
				Shape = shape,
				Dimensions = new { Width = width, Height = height, Depth = depth },
				HasRenderer = true,
				HasCollider = addCollider
			} );
		}

		public static ToolOutcome<object> CreateMappingPrimitive( string primitiveType = "block", float sizeX = 128f, float sizeY = 128f, float sizeZ = 128f )
		{
			var scene = EditorRuntime.ResolveActiveScene();
			if ( scene == null )
			{
				return ToolOutcome<object>.Failure( null, ToolStatus.Unavailable, "mapping.no_scene", "No active scene loaded." );
			}

			var go = new GameObject( true, $"Brush_{primitiveType}" );

			var renderer = go.Components.Create<ModelRenderer>();
			renderer.Model = Model.Cube;
			go.WorldScale = new Vector3( sizeX / 100f, sizeY / 100f, sizeZ / 100f );

			go.Components.Create<BoxCollider>();

			return ToolOutcome<object>.Ready( new
			{
				GameObject = go.Name,
				Primitive = primitiveType,
				Extents = new { sizeX, sizeY, sizeZ }
			} );
		}
	}
}