#include "VertexShader.h"
#include "GraphicsThrowMacros.h"
#include "BindableCodex.h"
#include <typeinfo>

namespace Bind
{
	using namespace std::string_literals;

	VertexShader::VertexShader( Graphics& gfx,const std::string& path )
		:
		path( path )
	{
		INFOMAN( gfx );

		GFX_THROW_INFO( D3DReadFileToBlob( std::wstring{path.begin(),path.end()}.c_str(),&pBytecodeBlob ) );
		GFX_THROW_INFO( GetDevice( gfx )->CreateVertexShader(
			pBytecodeBlob->GetBufferPointer(),
			pBytecodeBlob->GetBufferSize(),
			nullptr,
			&pVertexShader
		) );
	}

	void VertexShader::Bind( Graphics& gfx ) noexcept
	{
		GetContext( gfx )->VSSetShader( pVertexShader.Get(),nullptr,0u );
	}

	ID3DBlob* VertexShader::GetBytecode() const noexcept
	{
		return pBytecodeBlob.Get();
	}
	std::shared_ptr<Bindable> VertexShader::Resolve( Graphics& gfx,const std::string& path )
	{
		auto bind = Codex::Resolve( GenerateUID( path ) );
		if( !bind )
		{
			bind = std::make_shared<VertexShader>( gfx,path );
			Codex::Store( bind );
		}
		return bind;
	}
	std::string VertexShader::GenerateUID( const std::string& path )
	{
		return typeid(VertexShader).name() + "#"s + path;
	}
	std::string VertexShader::GetUID() const noexcept
	{
		return GenerateUID( path );
	}
}