#pragma once
#include "ui-texture.hh"
#include "ui-shaders.hh"


struct T_OutputDebugger
{
	friend struct T_Texture;

	T_OutputDebugger( );
	NO_COPY( T_OutputDebugger );
	NO_MOVE( T_OutputDebugger );
	~T_OutputDebugger( );

	void registerTexture(
			T_Texture& texture ,
			const E_ODbgMode mode ,
			T_String const& name );

	bool& uiEnabled( )
		{ return enabled_; }
	void makeUI( );

	bool isActive( ) const
		{ return selected_ != -1; }
	void debugOutput( );

    private:
	struct T_Texture_
	{
		GLuint id;
		uint32_t levels;
		E_ODbgMode mode;
		T_String name;
		//
		int submode;
		int lod;
	};

	using F_SubmodeSetup = std::function< void( GLuint ) >;
	struct T_Submode_
	{
		T_String name;
		T_ShaderPipeline pipeline;
		F_SubmodeSetup setup;
	};

	bool enabled_ = false;
	uint32_t nRegistered_ = 0;
	T_Array< T_Texture_ > outputs_;
	T_Array< T_Submode_ > submodes_[ int( E_ODbgMode::__COUNT__ ) ];
	char* smCombo_[ int( E_ODbgMode::__COUNT__ ) ];
	ebcl::T_StringBuilder imguiStrings;

	int32_t selected_ = -1;
	char* selectorItems_;
	T_Array< int32_t > selectorMapping_;

	void registerSubmode(
			const E_ODbgMode mode ,
			T_String const& name ,
			char const* shader ,
			F_SubmodeSetup setup = F_SubmodeSetup( ) );
	void initSubmodeCombo( );

	int32_t registerTexture(
			const GLuint id ,
			const uint32_t levels ,
			const E_ODbgMode mode ,
			T_String const& name );
	void unregisterTexture(
			const uint32_t index );

	void makeSelectorItems( );
	void clearSelectorItems( );
};