#ifndef S3FS_S3FS_UTIL_H_
#define S3FS_S3FS_UTIL_H_

//-------------------------------------------------------------------
// Typedef
//-------------------------------------------------------------------
//
// Struct
//
struct s3obj_entry{
  std::string normalname; // normalized name: if empty, object is nomalized name.
  std::string orgname;    // original name: if empty, object is original name.
  std::string etag;
  bool        is_dir;

  s3obj_entry() : is_dir(false) {}
};

typedef std::map<std::string, struct s3obj_entry> s3obj_t;
typedef std::list<std::string> s3obj_list_t;

//
// Class
//
class S3ObjList
{
  private:
    s3obj_t objects;

  private:
    bool insert_nomalized(const char* name, const char* normalized, bool is_dir);
    const s3obj_entry* GetS3Obj(const char* name) const;

    s3obj_t::const_iterator begin(void) const {
      return objects.begin();
    }
    s3obj_t::const_iterator end(void) const {
      return objects.end();
    }

  public:
    S3ObjList() {}
    ~S3ObjList() {}

    bool IsEmpty(void) const {
      return objects.empty();
    }
    bool insert(const char* name, const char* etag = NULL, bool is_dir = false);
    std::string GetOrgName(const char* name) const;
    std::string GetNormalizedName(const char* name) const;
    std::string GetETag(const char* name) const;
    bool IsDir(const char* name) const;
    bool GetNameList(s3obj_list_t& list, bool OnlyNormalized = true, bool CutSlash = true) const;
};

typedef struct mvnode {
   char *old_path;
   char *new_path;
   bool is_dir;
   struct mvnode *prev;
   struct mvnode *next;
} MVNODE;

//-------------------------------------------------------------------
// Functions
//-------------------------------------------------------------------
std::string get_realpath(const char *path);

MVNODE *create_mvnode(const char *old_path, const char *new_path, bool is_dir);
MVNODE *add_mvnode(MVNODE** head, MVNODE** tail, const char *old_path, const char *new_path, bool is_dir);
void free_mvnodes(MVNODE *head);

std::string get_username(uid_t uid);
int is_uid_inculde_group(uid_t uid, gid_t gid);

std::string mydirname(std::string path);
std::string mybasename(std::string path);
int mkdirp(const std::string& path, mode_t mode);

time_t get_mtime(const char *s);
off_t get_size(const char *s);
mode_t get_mode(const char *s);
uid_t get_uid(const char *s);
gid_t get_gid(const char *s);
blkcnt_t get_blocks(off_t size);
time_t get_lastmodified(const char* s);

void show_usage(void);
void show_help(void);
void show_version(void);

#endif // S3FS_S3FS_UTIL_H_