#ifndef FILE_HANDLER
#define FILE_HANDLER

#include<string>
#include<unistd.h>
#include<sys/stat.h>
#include"Defines.cpp"

class FileHandler
{
 private:
 FILE* _file = NULL;
 std::string _filePath;
 public:
 FileHandler(std::string path, std::string mode = "r")
 {
 _filePath = path;
 //判断文件是否存在
 if(IsFileExist() == false)
 {
 PrintLine("文件不存在 [%s]", _filePath.c_str());
 return;
 }
 //打开文件
 _file = fopen(_filePath.c_str(), mode.c_str());
 if(_file == NULL)
 {
 PrintLine("文件打开失败 [%s]", _filePath.c_str());
 return;
 }
 }

 int Read(char *buff, int length)
 {
 int ret = fread(buff, sizeof(char), length, _file);
 return ret;
 }

 long GetFileSize()
 {
 return GetFileSize(_filePath);
 }

 bool IsDirectoryFile()
 {
 return IsDirectoryFile(_filePath);
 }

 bool IsOrdinaryFile()
 {
 return IsOrdinaryFile(_filePath);
 }

 bool IsFileExist()
 {
 return IsFileExist(_filePath);
 }

 //静态函数
 static long GetFileSize(std::string path)
 {
 FILE *file = fopen(path.c_str(), "r");
 if(file == NULL)
 {
 PrintLine("文件指针为空 %s", path);
 return -1;
 }
 fseek(file, 0L, SEEK_END);
 long ret = ftell(file);
 fclose(file);
 return ret;
 }

 static bool IsDirectoryFile(std::string path)
 {
 struct stat st;
 stat(path.c_str(), &st);
 return S_ISDIR(st.st_mode);
 }

 static bool IsOrdinaryFile(std::string path)
 {
 struct stat st;
 stat(path.c_str(), &st);
 return S_ISREG(st.st_mode);
 }

 static bool IsFileExist(std::string path)
 {
 return access(path.c_str(), F_OK) == 0 && (IsOrdinaryFile(path) || IsDirectoryFile(path));
 }
};

#endif