//-------------------------------------------------------------------------------
#include "loadBasicPacket.h"
//-------------------------------------------------------------------------------
#include "generateSave.h"
#include "generateBin.h"
#include "generateOutput.h"
//-------------------------------------------------------------------------------

bool isLoadBasicPacket( void )
{
	return (strlen( miBaseImageName ) != 0);
}

//-------------------------------------------------------------------------------

void freeBasicPacket( void )
{
	removeTempFile( BASEIMAGE_CODEBIN );
	removeTempFile( BASEIMAGE_SAVE );
	
#if( CONFIG_DATA_FLASH_SIZE != 0  )
	removeTempFile( BASEIMAGE_DATABIN );
#endif
}

static inline bool generateDecryptFlashBin( const char *tmp, const char *final )
{
	dbgMsg( "[generateDecryptFlashBin]\n" );
	if( sisspi_encrypt( tmp, final, false ) )
	{
		errMsg( "decrypt failed\n"); return false;
	}

	removeTempFile( tmp );
	return true;
}

static inline bool outputFileContent(  const char *targetName, FILE *fpIn, u32 cpySize )
{
	FILE *fpOut; int readSize;
	u8 readBuf[TMP_BUFFER_SIZE] = {0};	

	fpOut = fopen( targetName, "wb" );
	if( fpOut == NULL )
	{
		errMsg( "File (%s) can not create\n", targetName );
		return false;
	}

	while( (!feof( fpIn)) && (cpySize) )
	{
		readSize = fread( readBuf, 1, MIN(TMP_BUFFER_SIZE,cpySize), fpIn );
        	if( readSize < 0 ) return true;
			
		fwrite( readBuf, 1, readSize, fpOut );
		cpySize -= readSize;
	}

	fclose( fpOut );
	return true;
}

bool separateBasicPacket()
{
	if( !isLoadBasicPacket() ) return true;

	showMsg( "miBasicPacketImage: %s\n", miBaseImageName );

	bool ret = true;
	FILE *fpIn= fopen( miBaseImageName, "rb" );
	if( fpIn == NULL ) return false;

	if( ret ) ret = outputFileContent( BASEIMAGE_SAVE, fpIn, SAVEINFO_SIZE );
	if( ret ) ret = outputFileContent( BASEIMAGE_CODETMP, fpIn, CONFIG_CODE_FLASH_SIZE*1024 );
	if( ret ) ret = generateDecryptFlashBin( BASEIMAGE_CODETMP, BASEIMAGE_CODEBIN );

#if( CONFIG_DATA_FLASH_SIZE != 0  )
	if( ret ) ret = outputFileContent( BASEIMAGE_DATATMP, fpIn, CONFIG_DATA_FLASH_SIZE*1024 );
	if( ret ) ret = generateDecryptFlashBin( BASEIMAGE_DATATMP, BASEIMAGE_DATABIN );
#endif

	fclose( fpIn );
	return ret;
}

//-------------------------------------------------------------------------------

bool loadBasicPacket()
{
	if( !separateBasicPacket() ) return false;
	return true;
}