crosspoint-reader-mod/src/activities/reader/EpubReaderMenuActivity.cpp

#include "EpubReaderMenuActivity.h"

#include <GfxRenderer.h>
#include <I18n.h>

#include "CrossPointSettings.h"
#include "MappedInputManager.h"
#include "components/UITheme.h"
#include "fontIds.h"

EpubReaderMenuActivity::EpubReaderMenuActivity(GfxRenderer& renderer, MappedInputManager& mappedInput,
                                               const std::string& title, const int currentPage, const int totalPages,
                                               const int bookProgressPercent, const uint8_t currentOrientation,
                                               const bool hasFootnotes, bool isBookmarked, uint8_t currentFontSize,
                                               const std::string& bookCachePath)
    : Activity("EpubReaderMenu", renderer, mappedInput),
      menuItems(buildMenuItems(hasFootnotes, isBookmarked)),
      title(title),
      pendingOrientation(currentOrientation),
      pendingFontSize(currentFontSize < CrossPointSettings::FONT_SIZE_COUNT ? currentFontSize : 0),
      currentPage(currentPage),
      totalPages(totalPages),
      bookProgressPercent(bookProgressPercent),
      bookCachePath(bookCachePath) {
  if (!bookCachePath.empty()) {
    auto bookSettings = BookSettings::load(bookCachePath);
    pendingLetterboxFill = bookSettings.letterboxFillOverride;
  }
}

std::vector<EpubReaderMenuActivity::MenuItem> EpubReaderMenuActivity::buildMenuItems(bool hasFootnotes,
                                                                                     bool isBookmarked) {
  std::vector<MenuItem> items;
  items.reserve(16);
  // Mod menu order
  if (isBookmarked) {
    items.push_back({MenuAction::REMOVE_BOOKMARK, StrId::STR_REMOVE_BOOKMARK});
  } else {
    items.push_back({MenuAction::ADD_BOOKMARK, StrId::STR_ADD_BOOKMARK});
  }
  items.push_back({MenuAction::DICTIONARY, StrId::STR_DICTIONARY});
  if (hasFootnotes) {
    items.push_back({MenuAction::FOOTNOTES, StrId::STR_FOOTNOTES});
  }
  items.push_back({MenuAction::TOGGLE_ORIENTATION, StrId::STR_TOGGLE_ORIENTATION});
  items.push_back({MenuAction::TOGGLE_FONT_SIZE, StrId::STR_TOGGLE_FONT_SIZE});
  items.push_back({MenuAction::LETTERBOX_FILL, StrId::STR_OVERRIDE_LETTERBOX_FILL});
  items.push_back({MenuAction::TABLE_OF_CONTENTS, StrId::STR_TABLE_OF_CONTENTS});
  items.push_back({MenuAction::GO_TO_BOOKMARK, StrId::STR_GO_TO_BOOKMARK});
  items.push_back({MenuAction::GO_TO_PERCENT, StrId::STR_GO_TO_PERCENT});
  items.push_back({MenuAction::CLOSE_BOOK, StrId::STR_CLOSE_BOOK});
  items.push_back({MenuAction::SYNC, StrId::STR_SYNC_PROGRESS});
  items.push_back({MenuAction::PUSH_AND_SLEEP, StrId::STR_PUSH_AND_SLEEP});
  items.push_back({MenuAction::MANAGE_BOOK, StrId::STR_MANAGE_BOOK});
  return items;
}

void EpubReaderMenuActivity::onEnter() {
  Activity::onEnter();
  requestUpdate();
}

void EpubReaderMenuActivity::onExit() { Activity::onExit(); }

void EpubReaderMenuActivity::loop() {
  // Handle navigation
  buttonNavigator.onNext([this] {
    selectedIndex = ButtonNavigator::nextIndex(selectedIndex, static_cast<int>(menuItems.size()));
    requestUpdate();
  });

  buttonNavigator.onPrevious([this] {
    selectedIndex = ButtonNavigator::previousIndex(selectedIndex, static_cast<int>(menuItems.size()));
    requestUpdate();
  });

  if (mappedInput.wasReleased(MappedInputManager::Button::Confirm)) {
    const auto selectedAction = menuItems[selectedIndex].action;
    if (selectedAction == MenuAction::TOGGLE_ORIENTATION) {
      // Toggle between preferred portrait and preferred landscape.
      const bool isCurrentlyPortrait =
          (pendingOrientation == CrossPointSettings::PORTRAIT || pendingOrientation == CrossPointSettings::INVERTED);
      pendingOrientation = isCurrentlyPortrait ? SETTINGS.preferredLandscape : SETTINGS.preferredPortrait;
      requestUpdate();
      return;
    }

    if (selectedAction == MenuAction::TOGGLE_FONT_SIZE) {
      pendingFontSize = (pendingFontSize + 1) % CrossPointSettings::FONT_SIZE_COUNT;
      requestUpdate();
      return;
    }

    if (selectedAction == MenuAction::LETTERBOX_FILL) {
      int idx = (letterboxFillToIndex() + 1) % LETTERBOX_FILL_OPTION_COUNT;
      pendingLetterboxFill = indexToLetterboxFill(idx);
      if (!bookCachePath.empty()) saveLetterboxFill();
      requestUpdate();
      return;
    }

    setResult(MenuResult{static_cast<int>(selectedAction), pendingOrientation, selectedPageTurnOption, pendingFontSize});
    finish();
    return;
  } else if (mappedInput.wasReleased(MappedInputManager::Button::Back)) {
    ActivityResult result;
    result.isCancelled = true;
    result.data = MenuResult{-1, pendingOrientation, selectedPageTurnOption, pendingFontSize};
    setResult(std::move(result));
    finish();
    return;
  }
}

void EpubReaderMenuActivity::render(RenderLock&&) {
  renderer.clearScreen();
  const auto pageWidth = renderer.getScreenWidth();
  const auto orientation = renderer.getOrientation();
  // Landscape orientation: button hints are drawn along a vertical edge, so we
  // reserve a horizontal gutter to prevent overlap with menu content.
  const bool isLandscapeCw = orientation == GfxRenderer::Orientation::LandscapeClockwise;
  const bool isLandscapeCcw = orientation == GfxRenderer::Orientation::LandscapeCounterClockwise;
  // Inverted portrait: button hints appear near the logical top, so we reserve
  // vertical space to keep the header and list clear.
  const bool isPortraitInverted = orientation == GfxRenderer::Orientation::PortraitInverted;
  const int hintGutterWidth = (isLandscapeCw || isLandscapeCcw) ? 30 : 0;
  // Landscape CW places hints on the left edge; CCW keeps them on the right.
  const int contentX = isLandscapeCw ? hintGutterWidth : 0;
  const int contentWidth = pageWidth - hintGutterWidth;
  const int hintGutterHeight = isPortraitInverted ? 50 : 0;
  const int contentY = hintGutterHeight;

  // Title
  const std::string truncTitle =
      renderer.truncatedText(UI_12_FONT_ID, title.c_str(), contentWidth - 40, EpdFontFamily::BOLD);
  // Manual centering so we can respect the content gutter.
  const int titleX =
      contentX + (contentWidth - renderer.getTextWidth(UI_12_FONT_ID, truncTitle.c_str(), EpdFontFamily::BOLD)) / 2;
  renderer.drawText(UI_12_FONT_ID, titleX, 15 + contentY, truncTitle.c_str(), true, EpdFontFamily::BOLD);

  // Progress summary
  std::string progressLine;
  if (totalPages > 0) {
    progressLine = std::string(tr(STR_CHAPTER_PREFIX)) + std::to_string(currentPage) + "/" +
                   std::to_string(totalPages) + std::string(tr(STR_PAGES_SEPARATOR));
  }
  progressLine += std::string(tr(STR_BOOK_PREFIX)) + std::to_string(bookProgressPercent) + "%";
  renderer.drawCenteredText(UI_10_FONT_ID, 45, progressLine.c_str());

  // Menu Items
  const int startY = 75 + contentY;
  constexpr int lineHeight = 30;

  for (size_t i = 0; i < menuItems.size(); ++i) {
    const int displayY = startY + (i * lineHeight);
    const bool isSelected = (static_cast<int>(i) == selectedIndex);

    if (isSelected) {
      // Highlight only the content area so we don't paint over hint gutters.
      renderer.fillRect(contentX, displayY, contentWidth - 1, lineHeight, true);
    }

    renderer.drawText(UI_10_FONT_ID, contentX + 20, displayY, I18N.get(menuItems[i].labelId), !isSelected);

    if (menuItems[i].action == MenuAction::TOGGLE_ORIENTATION) {
      const char* value = I18N.get(orientationLabels[pendingOrientation]);
      const auto width = renderer.getTextWidth(UI_10_FONT_ID, value);
      renderer.drawText(UI_10_FONT_ID, contentX + contentWidth - 20 - width, displayY, value, !isSelected);
    }

    if (menuItems[i].action == MenuAction::TOGGLE_FONT_SIZE) {
      const char* value = I18N.get(fontSizeLabels[pendingFontSize]);
      const auto width = renderer.getTextWidth(UI_10_FONT_ID, value);
      renderer.drawText(UI_10_FONT_ID, contentX + contentWidth - 20 - width, displayY, value, !isSelected);
    }

    if (menuItems[i].action == MenuAction::LETTERBOX_FILL) {
      const char* value = I18N.get(letterboxFillLabels[letterboxFillToIndex()]);
      const auto width = renderer.getTextWidth(UI_10_FONT_ID, value);
      renderer.drawText(UI_10_FONT_ID, contentX + contentWidth - 20 - width, displayY, value, !isSelected);
    }
  }

  // Footer / Hints
  const auto labels = mappedInput.mapLabels(tr(STR_BACK), tr(STR_SELECT), tr(STR_DIR_UP), tr(STR_DIR_DOWN));
  GUI.drawButtonHints(renderer, labels.btn1, labels.btn2, labels.btn3, labels.btn4);

  renderer.displayBuffer();
}