#include <cstring>
#include "Iop_FileIoHandler2100.h"
#include "Iop_Ioman.h"
#include "Log.h"

#define LOG_NAME ("iop_fileio")

using namespace Iop;

CFileIoHandler2100::CFileIoHandler2100(CIoman* ioman)
    : CHandler(ioman)
{
}

bool CFileIoHandler2100::Invoke(uint32 method, uint32* args, uint32 argsSize, uint32* ret, uint32 retSize, uint8* ram)
{
	switch(method)
	{
	case 0:
	{
		assert(retSize == 4);
		auto command = reinterpret_cast<OPENCOMMAND*>(args);
		*ret = m_ioman->Open(command->flags, command->fileName);
	}
	break;
	case 1:
	{
		assert(retSize == 4);
		auto command = reinterpret_cast<CLOSECOMMAND*>(args);
		*ret = m_ioman->Close(command->fd);
	}
	break;
	case 2:
	{
		assert(retSize == 4);
		auto command = reinterpret_cast<READCOMMAND*>(args);
		*ret = m_ioman->Read(command->fd, command->size, reinterpret_cast<void*>(ram + command->buffer));
	}
	break;
	case 4:
	{
		assert(retSize == 4);
		auto command = reinterpret_cast<SEEKCOMMAND*>(args);
		*ret = m_ioman->Seek(command->fd, command->offset, command->whence);
	}
	break;
	case 255:
		//Init - Taken care of by owner (CFileIo)
		break;
	default:
		CLog::GetInstance().Warn(LOG_NAME, "Unknown function (%d) called.\r\n", method);
		break;
	}
	return true;
}