/*
 FS.cpp - file system wrapper
 Copyright (c) 2015 Ivan Grokhotkov. All rights reserved.
 This file is part of the esp8266 core for Arduino environment.

 This library is free software; you can redistribute it and/or
 modify it under the terms of the GNU Lesser General Public
 License as published by the Free Software Foundation; either
 version 2.1 of the License, or (at your option) any later version.

 This library is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 Lesser General Public License for more details.

 You should have received a copy of the GNU Lesser General Public
 License along with this library; if not, write to the Free Software
 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

#include "FS.h"
#include "FSImpl.h"

using namespace fs;

size_t File::write(uint8_t c) {
  if (!*this) {
    return 0;
  }

  return _p->write(&c, 1);
}

time_t File::getLastWrite() {
  if (!*this) {
    return 0;
  }

  return _p->getLastWrite();
}

size_t File::write(const uint8_t *buf, size_t size) {
  if (!*this) {
    return 0;
  }

  return _p->write(buf, size);
}

int File::available() {
  if (!*this) {
    return false;
  }

  return _p->size() - _p->position();
}

int File::read() {
  if (!*this) {
    return -1;
  }

  uint8_t result;
  if (_p->read(&result, 1) != 1) {
    return -1;
  }

  return result;
}

size_t File::read(uint8_t *buf, size_t size) {
  if (!*this) {
    return -1;
  }

  return _p->read(buf, size);
}

int File::peek() {
  if (!*this) {
    return -1;
  }

  size_t curPos = _p->position();
  int result = read();
  seek(curPos, SeekSet);
  return result;
}

void File::flush() {
  if (!*this) {
    return;
  }

  _p->flush();
}

bool File::seek(uint32_t pos, SeekMode mode) {
  if (!*this) {
    return false;
  }

  return _p->seek(pos, mode);
}

size_t File::position() const {
  if (!*this) {
    return (size_t)-1;
  }

  return _p->position();
}

size_t File::size() const {
  if (!*this) {
    return 0;
  }

  return _p->size();
}

bool File::setBufferSize(size_t size) {
  if (!*this) {
    return 0;
  }

  return _p->setBufferSize(size);
}

void File::close() {
  if (_p) {
    _p->close();
    _p = nullptr;
  }
}

File::operator bool() const {
  return _p != nullptr && *_p != false;
}

const char *File::path() const {
  if (!*this) {
    return nullptr;
  }

  return _p->path();
}

const char *File::name() const {
  if (!*this) {
    return nullptr;
  }

  return _p->name();
}

//to implement
boolean File::isDirectory(void) {
  if (!*this) {
    return false;
  }
  return _p->isDirectory();
}

File File::openNextFile(const char *mode) {
  if (!*this) {
    return File();
  }
  return _p->openNextFile(mode);
}

boolean File::seekDir(long position) {
  if (!_p) {
    return false;
  }
  return _p->seekDir(position);
}

String File::getNextFileName(void) {
  if (!_p) {
    return "";
  }
  return _p->getNextFileName();
}

String File::getNextFileName(bool *isDir) {
  if (!_p) {
    return "";
  }
  return _p->getNextFileName(isDir);
}

void File::rewindDirectory(void) {
  if (!*this) {
    return;
  }
  _p->rewindDirectory();
}

File FS::open(const String &path, const char *mode, const bool create) {
  return open(path.c_str(), mode, create);
}

File FS::open(const char *path, const char *mode, const bool create) {
  if (!_impl) {
    return File();
  }

  return File(_impl->open(path, mode, create));
}

bool FS::exists(const char *path) {
  if (!_impl) {
    return false;
  }
  return _impl->exists(path);
}

bool FS::exists(const String &path) {
  return exists(path.c_str());
}

bool FS::remove(const char *path) {
  if (!_impl) {
    return false;
  }
  return _impl->remove(path);
}

bool FS::remove(const String &path) {
  return remove(path.c_str());
}

bool FS::rename(const char *pathFrom, const char *pathTo) {
  if (!_impl) {
    return false;
  }
  return _impl->rename(pathFrom, pathTo);
}

bool FS::rename(const String &pathFrom, const String &pathTo) {
  return rename(pathFrom.c_str(), pathTo.c_str());
}

bool FS::mkdir(const char *path) {
  if (!_impl) {
    return false;
  }
  return _impl->mkdir(path);
}

bool FS::mkdir(const String &path) {
  return mkdir(path.c_str());
}

bool FS::rmdir(const char *path) {
  if (!_impl) {
    return false;
  }
  return _impl->rmdir(path);
}

bool FS::rmdir(const String &path) {
  return rmdir(path.c_str());
}

const char *FS::mountpoint() {
  if (!_impl) {
    return NULL;
  }
  return _impl->mountpoint();
}

void FSImpl::mountpoint(const char *mp) {
  _mountpoint = mp;
  if (mp && !_mtx) {
    _mtx = xSemaphoreCreateRecursiveMutex();
    if (!_mtx) {
      log_w("Failed to create recursive mutex for filesystem in mountpoint %s", mp ? mp : "NULL");
      log_w("Some filesystem operations on this mountpoint will continue without synchronization and will not be serialized.");
    }
  }
}

const char *FSImpl::mountpoint() {
  return _mountpoint;
}
