#pragma once

#include "common/Singleton.hpp"
#include "singletons/Resources.hpp"

#include <QApplication>
#include <memory>

namespace chatterino {

class TwitchServer;
class PubSub;

class CommandController;
class HighlightController;
class IgnoreController;
class TaggedUsersController;
class AccountController;
class ModerationActions;

class Theme;
class WindowManager;
class Logging;
class Paths;
class AccountManager;
class Emotes;
class Settings;
class Fonts;
class Resources;

class Application
{
    std::vector<std::unique_ptr<Singleton>> singletons_;
    int argc_;
    char **argv_;

public:
    static Application *instance;

    Application(Settings &settings, Paths &paths);

    void initialize(Settings &settings, Paths &paths);
    void load();
    void save();

    int run(QApplication &qtApp);

    friend void test();

    Settings *const settings = nullptr;
    Paths *const paths = nullptr;
    Resources2 *const resources;

    Theme *const themes = nullptr;
    Fonts *const fonts = nullptr;
    Emotes *const emotes = nullptr;
    WindowManager *const windows = nullptr;

    AccountController *const accounts = nullptr;
    CommandController *const commands = nullptr;
    HighlightController *const highlights = nullptr;
    IgnoreController *const ignores = nullptr;
    TaggedUsersController *const taggedUsers = nullptr;
    ModerationActions *const moderationActions = nullptr;
    TwitchServer *const twitch2 = nullptr;

    [[deprecated]] Logging *const logging = nullptr;

    /// Provider-specific
    struct {
        [[deprecated("use twitch2 instead")]] TwitchServer *server = nullptr;
        [[deprecated("use twitch2->pubsub instead")]] PubSub *pubsub = nullptr;
    } twitch;

private:
    void addSingleton(Singleton *singleton);
    void initPubsub();
    void initNm();

    template <typename T,
              typename = std::enable_if_t<std::is_base_of<Singleton, T>::value>>
    T &emplace()
    {
        auto t = new T;
        this->singletons_.push_back(std::unique_ptr<T>(t));
        return *t;
    }
};

Application *getApp();

}  // namespace chatterino