using System;
using System.Reflection;
using System.Text;

namespace srl.Debug;

public class DebugDriver : Driver
{
	private StringBuilder _sb = new();
	private int _indent = 0;

	public override string ToString() => _sb.ToString();

	private void Line( string s ) => _sb.AppendLine( new string( ' ', _indent * 2 ) + s );

	public void BeginScope( string name, Type type, int id )
	{
		var refStr = id > 0 ? $" #{id}" : "";
		Line( $"[{name}] <{type.Name}>{refStr}" );
		_indent++;
	}

	public void EndScope() => _indent--;

	public void BeginCollection( string name, int count )
	{
		Line( $"[{name}] (Count: {count})" );
		_indent++;
	}

	public void EndCollection() => _indent--;

	public void WriteAttr( string name, string value )
	{
		Line( $"{name} = {value}" );
	}

	public void WriteRef( string name, int id )
	{
		Line( $"{name} -> See #{id}" );
	}

	public void OnProp( MemberInfo m, string name )
	{
		// Could log attributes here, e.g. [Tooltip]
	}
}