/*
 *  Copyright (C) 2016-2018 Team Kodi
 *  This file is part of Kodi - https://kodi.tv
 *
 *  SPDX-License-Identifier: GPL-2.0-or-later
 *  See LICENSES/README.md for more information.
 */

#include "ViewModeSettings.h"

#include "cores/VideoSettings.h"
#include "guilib/LocalizeStrings.h"
#include "settings/lib/SettingDefinitions.h"

struct ViewModeProperties
{
  int stringIndex;
  int viewMode;
  bool hideFromQuickCycle = false;
  bool hideFromList = false;
};

#define HIDE_ITEM true

/** The list of all the view modes along with their properties
 */
static const ViewModeProperties viewModes[] =
{
  { 630,   ViewModeNormal },
  { 631,   ViewModeZoom },
  { 39008, ViewModeZoom120Width },
  { 39009, ViewModeZoom110Width },
  { 632,   ViewModeStretch4x3 },
  { 633,   ViewModeWideZoom },
  { 634,   ViewModeStretch16x9 },
  { 644,   ViewModeStretch16x9Nonlin, HIDE_ITEM, HIDE_ITEM },
  { 635,   ViewModeOriginal },
  { 636,   ViewModeCustom, HIDE_ITEM }
};

#define NUMBER_OF_VIEW_MODES (sizeof(viewModes) / sizeof(viewModes[0]))

/** Gets the index of a view mode
 *
 * @param viewMode The view mode
 * @return The index of the view mode in the viewModes array
 */
static int GetViewModeIndex(int viewMode)
{
  size_t i;

  // Find the current view mode
  for (i = 0; i < NUMBER_OF_VIEW_MODES; i++)
  {
    if (viewModes[i].viewMode == viewMode)
      return i;
  }

  return 0; // An invalid view mode will always return the first view mode
}

/** Gets the next view mode for quick cycling through the modes
 *
 * @param viewMode The current view mode
 * @return The next view mode
 */
int CViewModeSettings::GetNextQuickCycleViewMode(int viewMode)
{
  // Find the next quick cycle view mode
  for (size_t i = GetViewModeIndex(viewMode) + 1; i < NUMBER_OF_VIEW_MODES; i++)
  {
    if (!viewModes[i].hideFromQuickCycle)
      return viewModes[i].viewMode;
  }

  return ViewModeNormal;
}

/** Gets the string index for the view mode
 *
 * @param viewMode The current view mode
 * @return The string index
 */
int CViewModeSettings::GetViewModeStringIndex(int viewMode)
{
  return viewModes[GetViewModeIndex(viewMode)].stringIndex;
}

/** Fills the list with all visible view modes
 */
void CViewModeSettings::ViewModesFiller(const std::shared_ptr<const CSetting>& setting,
                                        std::vector<IntegerSettingOption>& list,
                                        int& current,
                                        void* data)
{
  // Add all appropriate view modes to the list control
  for (const auto &item : viewModes)
  {
    if (!item.hideFromList)
      list.emplace_back(g_localizeStrings.Get(item.stringIndex), item.viewMode);
  }
}