/*************************************************************************/
/*  animation_tree_editor_plugin.h                                       */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
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/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md).   */
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/*************************************************************************/

#ifndef ANIMATION_TREE_EDITOR_PLUGIN_H
#define ANIMATION_TREE_EDITOR_PLUGIN_H

#include "editor/editor_plugin.h"
#include "scene/animation/animation_tree.h"
#include "scene/gui/button.h"
#include "scene/gui/graph_edit.h"

class EditorFileDialog;

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 = nullptr;
	HBoxContainer *path_hb = nullptr;

	AnimationTree *tree = nullptr;
	MarginContainer *editor_base = nullptr;

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

	void _update_path();
	ObjectID current_root;

	void _path_button_pressed(int p_path);
	void _animation_list_changed();

	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 = nullptr;
	Button *button = nullptr;

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

	AnimationTreeEditorPlugin();
	~AnimationTreeEditorPlugin();
};

#endif // ANIMATION_TREE_EDITOR_PLUGIN_H