/*************************************************************************/
/*  editor_toaster.h                                                     */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                      https://godotengine.org                          */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md).   */
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/* without limitation the rights to use, copy, modify, merge, publish,   */
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/*************************************************************************/

#ifndef EDITOR_TOASTER_H
#define EDITOR_TOASTER_H

#include "core/string/ustring.h"
#include "core/templates/local_vector.h"
#include "scene/gui/box_container.h"

class Button;
class PanelContainer;

class EditorToaster : public HBoxContainer {
	GDCLASS(EditorToaster, HBoxContainer);

public:
	enum Severity {
		SEVERITY_INFO = 0,
		SEVERITY_WARNING,
		SEVERITY_ERROR,
	};

private:
	ErrorHandlerList eh;

	const int stylebox_radius = 3;

	Ref<StyleBoxFlat> info_panel_style_background;
	Ref<StyleBoxFlat> warning_panel_style_background;
	Ref<StyleBoxFlat> error_panel_style_background;

	Ref<StyleBoxFlat> info_panel_style_progress;
	Ref<StyleBoxFlat> warning_panel_style_progress;
	Ref<StyleBoxFlat> error_panel_style_progress;

	Button *main_button;
	PanelContainer *disable_notifications_panel;
	Button *disable_notifications_button;

	VBoxContainer *vbox_container;
	const int max_temporary_count = 5;
	struct Toast {
		Severity severity = SEVERITY_INFO;

		// Timing.
		real_t duration = -1.0;
		real_t remaining_time = 0.0;
		bool popped = false;

		// Messages
		String message;
		String tooltip;
		int count = 0;
	};
	Map<Control *, Toast> toasts;

	bool is_processing_error = false; // Makes sure that we don't handle errors that are triggered within the EditorToaster error processing.

	const double default_message_duration = 5.0;

	static void _error_handler(void *p_self, const char *p_func, const char *p_file, int p_line, const char *p_error, const char *p_errorexp, bool p_editor_notify, ErrorHandlerType p_type);
	void _update_vbox_position();
	void _update_disable_notifications_button();
	void _auto_hide_or_free_toasts();

	void _draw_button();
	void _draw_progress(Control *panel);

	void _set_notifications_enabled(bool p_enabled);
	void _repop_old();
	void _popup_str(String p_message, Severity p_severity, String p_tooltip);
	void _close_button_theme_changed(Control *p_close_button);

protected:
	static EditorToaster *singleton;
	static void _bind_methods();

	void _notification(int p_what);

public:
	static EditorToaster *get_singleton();

	Control *popup(Control *p_control, Severity p_severity = SEVERITY_INFO, double p_time = 0.0, String p_tooltip = String());
	void popup_str(String p_message, Severity p_severity = SEVERITY_INFO, String p_tooltip = String());
	void close(Control *p_control);

	EditorToaster();
	~EditorToaster();
};

VARIANT_ENUM_CAST(EditorToaster::Severity);

#endif // EDITOR_TOASTER_H