/**************************************************************************/
/*  animation_tree_editor_plugin.h                                        */
/**************************************************************************/
/*                         This file is part of:                          */
/*                             GODOT ENGINE                               */
/*                        https://godotengine.org                         */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 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.                 */
/**************************************************************************/

#pragma once

#include "editor/docks/editor_dock.h"
#include "editor/plugins/editor_plugin.h"
#include "scene/animation/animation_tree.h"
#include "scene/gui/box_container.h"

class Button;
class EditorFileDialog;
class PanelContainer;
class ScrollContainer;
class RichTextLabel;

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;

private:
	String last_error_key;
};

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

	ScrollContainer *path_edit = nullptr;
	HBoxContainer *path_hb = nullptr;
	RichTextLabel *current_scope_error_label = nullptr;
	Button *error_button = nullptr;
	ScrollContainer *error_scroll = nullptr;
	RichTextLabel *error_label = nullptr;

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

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

	void _update_path();
	void _clear_editors();
	ObjectID current_root;

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

	void _toggle_error_panel();
	void _update_error_message(const String *p_other_errors = nullptr);

	static LocalVector<StringName> get_animation_list();

protected:
	void _meta_clicked(Variant p_meta);
	void _notification(int p_what);
	void _node_removed(Node *p_node);

	static AnimationTreeEditor *singleton;

public:
	String current_playback_error;

	AnimationTree *get_animation_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;

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

	AnimationTreeEditorPlugin();
};
