/*************************************************************************/
/*  tile_set_scenes_collection_source_editor.h                           */
/*************************************************************************/
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/*                           GODOT ENGINE                                */
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/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md).   */
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/*************************************************************************/

#ifndef TILE_SET_SCENES_COLLECTION_SOURCE_EDITOR_H
#define TILE_SET_SCENES_COLLECTION_SOURCE_EDITOR_H

#include "editor/editor_node.h"
#include "scene/gui/box_container.h"
#include "scene/resources/tile_set.h"

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

private:
	// -- Proxy object for an atlas source, needed by the inspector --
	class TileSetScenesCollectionProxyObject : public Object {
		GDCLASS(TileSetScenesCollectionProxyObject, Object);

	private:
		Ref<TileSet> tile_set;
		TileSetScenesCollectionSource *tile_set_scenes_collection_source = nullptr;
		int source_id = -1;

	protected:
		bool _set(const StringName &p_name, const Variant &p_value);
		bool _get(const StringName &p_name, Variant &r_ret) const;
		static void _bind_methods();

	public:
		void set_id(int p_id);
		int get_id();

		void edit(Ref<TileSet> p_tile_set, TileSetScenesCollectionSource *p_tile_set_scenes_collection_source, int p_source_id);
	};

	// -- Proxy object for a tile, needed by the inspector --
	class SceneTileProxyObject : public Object {
		GDCLASS(SceneTileProxyObject, Object);

	private:
		TileSetScenesCollectionSourceEditor *tile_set_scenes_collection_source_editor;

		TileSetScenesCollectionSource *tile_set_scenes_collection_source = nullptr;
		int source_id;
		int scene_id;

	protected:
		bool _set(const StringName &p_name, const Variant &p_value);
		bool _get(const StringName &p_name, Variant &r_ret) const;
		void _get_property_list(List<PropertyInfo> *p_list) const;

		static void _bind_methods();

	public:
		// Update the proxyed object.
		void edit(TileSetScenesCollectionSource *p_tile_set_atlas_source, int p_scene_id);

		SceneTileProxyObject(TileSetScenesCollectionSourceEditor *p_tiles_set_scenes_collection_source_editor) {
			tile_set_scenes_collection_source_editor = p_tiles_set_scenes_collection_source_editor;
		}
	};

private:
	Ref<TileSet> tile_set;
	TileSetScenesCollectionSource *tile_set_scenes_collection_source = nullptr;
	int tile_set_source_id = -1;

	UndoRedo *undo_redo = EditorNode::get_undo_redo();

	bool tile_set_scenes_collection_source_changed_needs_update = false;

	// Source inspector.
	TileSetScenesCollectionProxyObject *scenes_collection_source_proxy_object;
	Label *scenes_collection_source_inspector_label;
	EditorInspector *scenes_collection_source_inspector;

	// Tile inspector.
	SceneTileProxyObject *tile_proxy_object;
	Label *tile_inspector_label;
	EditorInspector *tile_inspector;

	ItemList *scene_tiles_list;
	Button *scene_tile_add_button;
	Button *scene_tile_delete_button;

	void _tile_set_scenes_collection_source_changed();
	void _scenes_collection_source_proxy_object_changed(String p_what);
	void _scene_thumbnail_done(const String &p_path, const Ref<Texture2D> &p_preview, const Ref<Texture2D> &p_small_preview, Variant p_ud);
	void _scenes_list_item_activated(int p_index);

	void _source_add_pressed();
	void _source_delete_pressed();

	// Update methods.
	void _update_source_inspector();
	void _update_tile_inspector();
	void _update_scenes_list();
	void _update_action_buttons();

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

public:
	void edit(Ref<TileSet> p_tile_set, TileSetScenesCollectionSource *p_tile_set_scenes_collection_source, int p_source_id);
	void drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from);
	bool can_drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from) const;
	TileSetScenesCollectionSourceEditor();
	~TileSetScenesCollectionSourceEditor();
};

#endif