#ifndef ANIMATION_TREE_EDITOR_PLUGIN_H
#define ANIMATION_TREE_EDITOR_PLUGIN_H

/*************************************************************************/
/*  animation_tree_editor_plugin.h                                       */
/*************************************************************************/
/*                         This file is part of:                         */
/*                          PANDEMONIUM ENGINE                           */
/*             https://github.com/Relintai/pandemonium_engine            */
/*************************************************************************/
/* Copyright (c) 2022-present Péter Magyar.                              */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md).   */
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur.                 */
/*                                                                       */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the       */
/* "Software"), to deal in the Software without restriction, including   */
/* without limitation the rights to use, copy, modify, merge, publish,   */
/* distribute, sublicense, and/or sell copies of the Software, and to    */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions:                                             */
/*                                                                       */
/* The above copyright notice and this permission notice shall be        */
/* included in all copies or substantial portions of the Software.       */
/*                                                                       */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
/*************************************************************************/

#include "editor/editor_plugin.h"
#include "scene/gui/box_container.h"

#include "core/containers/vector.h"
#include "core/object/object.h"
#include "core/object/object_id.h"
#include "core/object/reference.h"
#include "core/string/ustring.h"

class AnimationNode;
class AnimationTree;
class Button;
class EditorNode;
class MarginContainer;
class ScrollContainer;

class AnimationTreeNodeEditorPlugin : public VBoxContainer {
	GDCLASS(AnimationTreeNodeEditorPlugin, VBoxContainer);

public:
	virtual bool can_edit(const Ref<AnimationNode> &p_node) = 0;
	virtual void edit(const Ref<AnimationNode> &p_node) = 0;
};

class AnimationTreeEditor : public VBoxContainer {
	GDCLASS(AnimationTreeEditor, VBoxContainer);

	ScrollContainer *path_edit;
	HBoxContainer *path_hb;

	AnimationTree *tree;
	MarginContainer *editor_base;

	Vector<String> button_path;
	Vector<String> edited_path;
	Vector<AnimationTreeNodeEditorPlugin *> editors;

	void _update_path();
	void _about_to_show_root();
	ObjectID current_root;

	void _path_button_pressed(int p_path);

	static Vector<String> get_animation_list();

protected:
	void _notification(int p_what);
	static void _bind_methods();

	static AnimationTreeEditor *singleton;

public:
	AnimationTree *get_tree() { return tree; }
	void add_plugin(AnimationTreeNodeEditorPlugin *p_editor);
	void remove_plugin(AnimationTreeNodeEditorPlugin *p_editor);

	String get_base_path();

	bool can_edit(const Ref<AnimationNode> &p_node) const;

	void edit_path(const Vector<String> &p_path);
	Vector<String> get_edited_path() const;

	void enter_editor(const String &p_path = "");
	static AnimationTreeEditor *get_singleton() { return singleton; }
	void edit(AnimationTree *p_tree);
	AnimationTreeEditor();
};

class AnimationTreeEditorPlugin : public EditorPlugin {
	GDCLASS(AnimationTreeEditorPlugin, EditorPlugin);

	AnimationTreeEditor *anim_tree_editor;
	EditorNode *editor;
	Button *button;

public:
	virtual String get_name() const { return "AnimationTree"; }
	bool has_main_screen() const { return false; }
	virtual void edit(Object *p_object);
	virtual bool handles(Object *p_object) const;
	virtual void make_visible(bool p_visible);

	AnimationTreeEditorPlugin(EditorNode *p_node);
	~AnimationTreeEditorPlugin();
};

#endif // ANIMATION_TREE_EDITOR_PLUGIN_H