/*************************************************************************/
/*  tile_set_editor.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 TILE_SET_EDITOR_H
#define TILE_SET_EDITOR_H

#include "atlas_merging_dialog.h"
#include "scene/gui/box_container.h"
#include "scene/gui/tab_bar.h"
#include "scene/resources/tile_set.h"
#include "tile_proxies_manager_dialog.h"
#include "tile_set_atlas_source_editor.h"
#include "tile_set_scenes_collection_source_editor.h"

class EditorUndoRedoManager;

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

	static TileSetEditor *singleton;

private:
	Ref<TileSet> tile_set;
	bool tile_set_changed_needs_update = false;
	HSplitContainer *split_container = nullptr;

	// TabBar.
	HBoxContainer *tile_set_toolbar = nullptr;
	TabBar *tabs_bar = nullptr;

	// Tiles.
	Label *no_source_selected_label = nullptr;
	TileSetAtlasSourceEditor *tile_set_atlas_source_editor = nullptr;
	TileSetScenesCollectionSourceEditor *tile_set_scenes_collection_source_editor = nullptr;

	Ref<EditorUndoRedoManager> undo_redo;

	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;

	void _update_sources_list(int force_selected_id = -1);

	// Sources management.
	Button *sources_delete_button = nullptr;
	MenuButton *sources_add_button = nullptr;
	MenuButton *source_sort_button = nullptr;
	MenuButton *sources_advanced_menu_button = nullptr;
	ItemList *sources_list = nullptr;
	Ref<Texture2D> missing_texture_texture;
	void _source_selected(int p_source_index);
	void _source_delete_pressed();
	void _source_add_id_pressed(int p_id_pressed);
	void _sources_advanced_menu_id_pressed(int p_id_pressed);
	void _set_source_sort(int p_sort);

	AtlasMergingDialog *atlas_merging_dialog = nullptr;
	TileProxiesManagerDialog *tile_proxies_manager_dialog = nullptr;

	bool first_edit = true;

	// Patterns.
	ItemList *patterns_item_list = nullptr;
	Label *patterns_help_label = nullptr;
	void _patterns_item_list_gui_input(const Ref<InputEvent> &p_event);
	void _pattern_preview_done(Ref<TileMapPattern> p_pattern, Ref<Texture2D> p_texture);
	bool select_last_pattern = false;
	void _update_patterns_list();

	void _tile_set_changed();
	void _tab_changed(int p_tab_changed);

	void _move_tile_set_array_element(Object *p_undo_redo, Object *p_edited, String p_array_prefix, int p_from_index, int p_to_pos);
	void _undo_redo_inspector_callback(Object *p_undo_redo, Object *p_edited, String p_property, Variant p_new_value);

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

public:
	_FORCE_INLINE_ static TileSetEditor *get_singleton() { return singleton; }

	void edit(Ref<TileSet> p_tile_set);

	TileSetEditor();
	~TileSetEditor();
};

#endif // TILE_SET_EDITOR_H