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

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

#include "../Activity.h"
#include "BookListStore.h"

/**
 * ListViewActivity - Displays the contents of a single book list
 *
 * Shows books in custom order with title, author, and thumbnail.
 * Allows selecting a book to open in the reader.
 */
class ListViewActivity final : public Activity {
 private:
  TaskHandle_t displayTaskHandle = nullptr;
  SemaphoreHandle_t renderingMutex = nullptr;

  std::string listName;
  BookList bookList;
  int selectorIndex = 0;
  bool updateRequired = false;

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

  // Pagination helpers
  int getPageItems() const;
  int getTotalPages() const;
  int getCurrentPage() const;

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

 public:
  explicit ListViewActivity(GfxRenderer& renderer, MappedInputManager& mappedInput, const std::string& listName,
                            const std::function<void()>& onBack,
                            const std::function<void(const std::string& path)>& onSelectBook)
      : Activity("ListView", renderer, mappedInput), listName(listName), onBack(onBack), onSelectBook(onSelectBook) {}

  void onEnter() override;
  void onExit() override;
  void loop() override;
};