#include "Copy.h"

int IsDir(std::string path)
{
	if(path.empty())
	{
		return 0;
	}
	struct stat st;
	if(0 != stat(path.c_str(),&st))
	{
		return 0;
	}
	if(S_ISDIR(st.st_mode))
	{
		return 1;
	}
	else
	{
		return 0;
	}
}
 
 
 
int CopyFile(std::string sourcePath,std::string destPath)
{
	int len = 0;
	FILE *pIn = NULL;
	FILE *pOut = NULL;
	char buff[BUFFER_LENGTH] = {0};
	
	if((pIn = fopen(sourcePath.c_str(),"r"))==NULL)
	{
		printf("Open File %s Failed...\n", sourcePath.c_str());
		return 1;
	}
	if((pOut=fopen(destPath.c_str(),"w"))==NULL)
	{
		printf("Create Dest File Failed...\n");
		return 1;
	}
	
	while((len = fread(buff,sizeof(char),sizeof(buff),pIn))>0)
	{
		fwrite(buff,sizeof(char),len,pOut);
	}
	fclose(pOut);
	fclose(pIn);
}
void CopyFolder(std::string sourcePath,std::string destPath)
{
	struct dirent* filename = NULL;
	if(0 == opendir(destPath.c_str()))
	{
		if (mkdir(destPath.c_str(),0777))
		{
		    printf("Create Dir Failed...\n");
		}
		else
		{
			printf("Creaat Dir %s Successed...\n", destPath.c_str());
		}
	}
	std::string path = sourcePath;
	
	DIR* dp=opendir(path.c_str());
	while(filename=readdir(dp))
	{
		std::string fileSourceFath = sourcePath;
		
		std::string fileDestPath = destPath;
		
		fileSourceFath += filename->d_name;
		fileDestPath += filename->d_name;
		if(IsDir(fileSourceFath.c_str()))
		{
			if(strncmp(filename->d_name, ".", 1) && strncmp(filename->d_name, "..", 2))
			{
				CopyFolder(fileSourceFath, fileDestPath);
			}		
		}
		else
		{
			CopyFile(fileSourceFath,fileDestPath);
			printf("Copy From %s To %s Successed\n",fileSourceFath.c_str(),fileDestPath.c_str());
		}
	}	
}
 
int Copy()
{
	const char* sou = "/home/zheng/MyDemo/Uauto/";
	const char* des = "/media/zheng/KINGSTON/Test/";
	
	std::string sourcePath = sou;//source path
	std::string destPath = des;//destnation path
	DIR* source=opendir(sourcePath.c_str());
	DIR* destination=opendir(destPath.c_str());
	if(!source)
	{
		printf("Source Dir Path Is Not Existed\n");
		return 1;
	}
	if(!destination)
	{
		printf("Destnation Dir Path Is Not Existed\n");
		return 1;
	}
	CopyFolder(sourcePath,destPath);
	
	closedir(source);
	closedir(destination);
	return 0;
}