/*
 * Deskflow -- mouse and keyboard sharing utility
 * SPDX-FileCopyrightText: (C) 2016 Symless Ltd.
 * SPDX-License-Identifier: GPL-2.0-only WITH LicenseRef-OpenSSL-Exception
 */

#pragma once

#include "deskflow/KeyState.h"
#include "platform/IOSXKeyResource.h"

#include <Carbon/Carbon.h>

using KeyLayout = TISInputSourceRef;

class OSXUchrKeyResource : public IOSXKeyResource
{
public:
  OSXUchrKeyResource(const void *, uint32_t keyboardType);

  // KeyResource overrides
  bool isValid() const override;
  uint32_t getNumModifierCombinations() const override;
  uint32_t getNumTables() const override;
  uint32_t getNumButtons() const override;
  uint32_t getTableForModifier(uint32_t mask) const override;
  KeyID getKey(uint32_t table, uint32_t button) const override;

private:
  using KeySequence = std::vector<KeyID>;

  bool getDeadKey(KeySequence &keys, uint16_t index) const;
  bool getKeyRecord(KeySequence &keys, uint16_t index, uint16_t &state) const;
  bool addSequence(KeySequence &keys, UCKeyCharSeq c) const;

private:
  const UCKeyboardLayout *m_resource;
  const UCKeyModifiersToTableNum *m_m;
  const UCKeyToCharTableIndex *m_cti;
  const UCKeySequenceDataIndex *m_sdi;
  const UCKeyStateRecordsIndex *m_sri;
  const UCKeyStateTerminators *m_st;
  uint16_t m_spaceOutput;
};