#pragma once
#include <functional>
#include <gtkmm.h>
#include <list>
#include <string>
#include <unordered_map>
#include <vector>

class EntryBox : public Gtk::Box {
public:
  class Entry : public Gtk::Entry {
  public:
    Entry(const std::string &content = "", std::function<void(const std::string &content)> on_activate_ = nullptr);
    std::function<void(const std::string &content)> on_activate;

    /// Only the default activation on an entry will update its history.
    void update_history();

  private:
    long selected_history;
    std::string last_content;
    bool set_text_from_history = false;
  };
  class Button : public Gtk::Button {
  public:
    Button(const std::string &label, std::function<void()> on_activate_ = nullptr);
    std::function<void()> on_activate;
  };
  class ToggleButton : public Gtk::ToggleButton {
  public:
    ToggleButton(const std::string &label, std::function<void()> on_activate_ = nullptr);
    std::function<void()> on_activate;
  };
  class Label : public Gtk::Label {
  public:
    Label(std::function<void(int state, const std::string &message)> update_ = nullptr);
    std::function<void(int state, const std::string &message)> update;
  };

private:
  EntryBox();

public:
  static EntryBox &get() {
    static EntryBox instance;
    return instance;
  }

  Gtk::Box upper_box;
  Gtk::Box lower_box;
  void clear();
  void hide() { clear(); }
  void show();
  std::list<Entry> entries;
  std::list<Button> buttons;
  std::list<ToggleButton> toggle_buttons;
  std::list<Label> labels;

private:
  static std::unordered_map<std::string, std::vector<std::string>> entry_histories;
};