/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef mozHunspellFileMgr_h

#define mozHunspellFileMgr_h

#include <string>

#include "mozilla/Result.h"

#include "mozilla/ResultExtensions.h"

#include "nsIInputStream.h"

#include "nsReadLine.h"

// Note: This class name and lack of namespacing terrible, but are necessary

// for Hunspell compatibility.

class FileMgr final

{

public:

  /**

   * aFilename must be a local file/jar URI for the file to load.

   *

   * aKey is the decription key for encrypted Hunzip files, and is

   * unsupported. The argument is there solely for compatibility.

   */

  explicit FileMgr(const char* aFilename, const char* aKey = nullptr);

  ~FileMgr() = default;

  // Note: The nonstandard naming conventions of these methods are necessary for

  // Hunspell compatibility.

  bool getline(std::string& aLine);

  int getlinenum() const { return mLineNum; }

private:

  mozilla::Result<mozilla::Ok, nsresult> Open(const nsACString& aPath);

  mozilla::Result<mozilla::Ok, nsresult> ReadLine(nsACString& aLine);

  int mLineNum = 0;

  nsCOMPtr<nsIInputStream> mStream;

  nsLineBuffer<char> mLineBuffer;

};

#endif // mozHunspellFileMgr_h