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#pragma once

#include "gui/PageStack.hpp"
#include "gui/CustomRendererWidget.hpp"
#include "GsrInfo.hpp"
#include "Config.hpp"
#include "window_texture.h"

#include <mglpp/window/Window.hpp>
#include <mglpp/graphics/Texture.hpp>
#include <mglpp/graphics/Sprite.hpp>
#include <mglpp/graphics/Rectangle.hpp>
#include <mglpp/graphics/Text.hpp>
#include <mglpp/window/Event.hpp>

namespace gsr {
    class DropdownButton;

    enum class RecordingStatus {
        NONE,
        REPLAY,
        RECORD,
        STREAM
    };

    enum class NotificationType {
        NONE,
        RECORD,
        REPLAY,
        STREAM
    };

    class Overlay {
    public:
        Overlay(std::string resources_path, GsrInfo gsr_info, egl_functions egl_funcs, mgl::Color bg_color);
        Overlay(const Overlay&) = delete;
        Overlay& operator=(const Overlay&) = delete;
        ~Overlay();

        void handle_events();
        void on_event(mgl::Event &event);
        // Returns false if not visible
        bool draw();

        void show();
        void hide();
        void toggle_show();
        void toggle_record();
        void toggle_pause();
        void toggle_stream();
        void toggle_replay();
        void save_replay();
        void show_notification(const char *str, double timeout_seconds, mgl::Color icon_color, mgl::Color bg_color, NotificationType notification_type);
        bool is_open() const;
    private:
        void process_key_bindings(mgl::Event &event);

        void update_notification_process_status();
        void update_gsr_process_status();

        void update_ui_recording_paused();
        void update_ui_recording_unpaused();

        void update_ui_recording_started();
        void update_ui_recording_stopped();

        void update_ui_streaming_started();
        void update_ui_streaming_stopped();

        void update_ui_replay_started();
        void update_ui_replay_stopped();

        void on_press_save_replay();
        void on_press_start_replay(bool disable_notification);
        void on_press_start_record();
        void on_press_start_stream();
        bool update_compositor_texture(const mgl_monitor *monitor);
    private:
        using KeyBindingCallback = std::function<void()>;
        struct KeyBinding {
            mgl::Event::KeyEvent key_event;
            KeyBindingCallback callback;
        };

        std::unique_ptr<mgl::Window> window;
        mgl::Event event;
        std::string resources_path;
        GsrInfo gsr_info;
        egl_functions egl_funcs;
        mgl::Color bg_color;
        std::vector<gsr::AudioDevice> audio_devices;
        mgl::Texture window_texture_texture;
        mgl::Sprite window_texture_sprite;
        mgl::Texture screenshot_texture;
        mgl::Sprite screenshot_sprite;
        mgl::Rectangle bg_screenshot_overlay;
        WindowTexture window_texture;
        gsr::PageStack page_stack;
        mgl::Rectangle top_bar_background;
        mgl::Text top_bar_text;
        mgl::Sprite logo_sprite;
        CustomRendererWidget close_button_widget;
        bool close_button_pressed_inside = false;
        bool visible = false;
        uint64_t default_cursor = 0;
        pid_t gpu_screen_recorder_process = -1;
        pid_t notification_process = -1;
        Config config;
        DropdownButton *replay_dropdown_button_ptr = nullptr;
        DropdownButton *record_dropdown_button_ptr = nullptr;
        DropdownButton *stream_dropdown_button_ptr = nullptr;

        RecordingStatus recording_status = RecordingStatus::NONE;
        bool paused = false;

        std::array<KeyBinding, 1> key_bindings;
    };
}