Xteink-X4-crosspoint-reader/src/activities/home/MyLibraryActivity.h

#pragma once
#include <freertos/FreeRTOS.h>
#include <freertos/semphr.h>
#include <freertos/task.h>

#include <functional>
#include <string>
#include <vector>

#include "../Activity.h"

class MyLibraryActivity final : public Activity {
public:
  enum class Tab { Recent, Files };

private:
  TaskHandle_t displayTaskHandle = nullptr;
  SemaphoreHandle_t renderingMutex = nullptr;

  Tab currentTab = Tab::Recent;
  int selectorIndex = 0;
  bool updateRequired = false;

  // Recent tab state (from RecentBooksActivity)
  std::vector<std::string> bookTitles; // Display titles for each book
  std::vector<std::string>
      bookPaths; // Paths for each visible book (excludes missing)

  // Files tab state (from FileSelectionActivity)
  std::string basepath = "/";
  std::vector<std::string> files;

  // Callbacks
  const std::function<void()> onGoHome;
  const std::function<void(const std::string &path)> onSelectBook;

  // Number of items that fit on a page
  int getPageItems() const;
  int getCurrentItemCount() const;
  int getTotalPages() const;
  int getCurrentPage() const;

  // Data loading
  void loadRecentBooks();
  void loadFiles();

  // Rendering
  static void taskTrampoline(void *param);
  [[noreturn]] void displayTaskLoop();
  void render() const;
  void renderRecentTab() const;
  void renderFilesTab() const;

public:
  explicit MyLibraryActivity(
      GfxRenderer &renderer, MappedInputManager &mappedInput,
      const std::function<void()> &onGoHome,
      const std::function<void(const std::string &path)> &onSelectBook,
      Tab initialTab = Tab::Recent)
      : Activity("MyLibrary", renderer, mappedInput), currentTab(initialTab),
        onGoHome(onGoHome), onSelectBook(onSelectBook) {}
  void onEnter() override;
  void onExit() override;
  void loop() override;
};