/*************************************************************************/
/*  dependency_editor.cpp                                                */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                      https://godotengine.org                          */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md).   */
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/* 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:                                             */
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/* 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  */
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/*************************************************************************/

#include "dependency_editor.h"

#include "core/io/resource_loader.h"
#include "core/os/file_access.h"
#include "editor_node.h"
#include "editor_scale.h"
#include "scene/gui/margin_container.h"

void DependencyEditor::_searched(const String &p_path) {
	Map<String, String> dep_rename;
	dep_rename[replacing] = p_path;

	ResourceLoader::rename_dependencies(editing, dep_rename);

	_update_list();
	_update_file();
}

void DependencyEditor::_load_pressed(Object *p_item, int p_cell, int p_button) {
	TreeItem *ti = Object::cast_to<TreeItem>(p_item);
	replacing = ti->get_text(1);

	search->set_title(TTR("Search Replacement For:") + " " + replacing.get_file());

	search->clear_filters();
	List<String> ext;
	ResourceLoader::get_recognized_extensions_for_type(ti->get_metadata(0), &ext);
	for (List<String>::Element *E = ext.front(); E; E = E->next()) {
		search->add_filter("*" + E->get());
	}
	search->popup_file_dialog();
}

void DependencyEditor::_fix_and_find(EditorFileSystemDirectory *efsd, Map<String, Map<String, String>> &candidates) {
	for (int i = 0; i < efsd->get_subdir_count(); i++) {
		_fix_and_find(efsd->get_subdir(i), candidates);
	}

	for (int i = 0; i < efsd->get_file_count(); i++) {
		String file = efsd->get_file(i);
		if (!candidates.has(file)) {
			continue;
		}

		String path = efsd->get_file_path(i);

		for (Map<String, String>::Element *E = candidates[file].front(); E; E = E->next()) {
			if (E->get() == String()) {
				E->get() = path;
				continue;
			}

			//must match the best, using subdirs
			String existing = E->get().replace_first("res://", "");
			String current = path.replace_first("res://", "");
			String lost = E->key().replace_first("res://", "");

			Vector<String> existingv = existing.split("/");
			existingv.invert();
			Vector<String> currentv = current.split("/");
			currentv.invert();
			Vector<String> lostv = lost.split("/");
			lostv.invert();

			int existing_score = 0;
			int current_score = 0;

			for (int j = 0; j < lostv.size(); j++) {
				if (j < existingv.size() && lostv[j] == existingv[j]) {
					existing_score++;
				}
				if (j < currentv.size() && lostv[j] == currentv[j]) {
					current_score++;
				}
			}

			if (current_score > existing_score) {
				//if it was the same, could track distance to new path but..

				E->get() = path; //replace by more accurate
			}
		}
	}
}

void DependencyEditor::_fix_all() {
	if (!EditorFileSystem::get_singleton()->get_filesystem()) {
		return;
	}

	Map<String, Map<String, String>> candidates;

	for (List<String>::Element *E = missing.front(); E; E = E->next()) {
		String base = E->get().get_file();
		if (!candidates.has(base)) {
			candidates[base] = Map<String, String>();
		}

		candidates[base][E->get()] = "";
	}

	_fix_and_find(EditorFileSystem::get_singleton()->get_filesystem(), candidates);

	Map<String, String> remaps;

	for (Map<String, Map<String, String>>::Element *E = candidates.front(); E; E = E->next()) {
		for (Map<String, String>::Element *F = E->get().front(); F; F = F->next()) {
			if (F->get() != String()) {
				remaps[F->key()] = F->get();
			}
		}
	}

	if (remaps.size()) {
		ResourceLoader::rename_dependencies(editing, remaps);

		_update_list();
		_update_file();
	}
}

void DependencyEditor::_update_file() {
	EditorFileSystem::get_singleton()->update_file(editing);
}

void DependencyEditor::_update_list() {
	List<String> deps;
	ResourceLoader::get_dependencies(editing, &deps, true);

	tree->clear();
	missing.clear();

	TreeItem *root = tree->create_item();

	Ref<Texture2D> folder = tree->get_theme_icon("folder", "FileDialog");

	bool broken = false;

	for (List<String>::Element *E = deps.front(); E; E = E->next()) {
		TreeItem *item = tree->create_item(root);

		String n = E->get();
		String path;
		String type;

		if (n.find("::") != -1) {
			path = n.get_slice("::", 0);
			type = n.get_slice("::", 1);
		} else {
			path = n;
			type = "Resource";
		}
		String name = path.get_file();

		Ref<Texture2D> icon = EditorNode::get_singleton()->get_class_icon(type);
		item->set_text(0, name);
		item->set_icon(0, icon);
		item->set_metadata(0, type);
		item->set_text(1, path);

		if (!FileAccess::exists(path)) {
			item->set_custom_color(1, Color(1, 0.4, 0.3));
			missing.push_back(path);
			broken = true;
		}

		item->add_button(1, folder, 0);
	}

	fixdeps->set_disabled(!broken);
}

void DependencyEditor::edit(const String &p_path) {
	editing = p_path;
	set_title(TTR("Dependencies For:") + " " + p_path.get_file());

	_update_list();
	popup_centered_ratio(0.4);

	if (EditorNode::get_singleton()->is_scene_open(p_path)) {
		EditorNode::get_singleton()->show_warning(vformat(TTR("Scene '%s' is currently being edited.\nChanges will only take effect when reloaded."), p_path.get_file()));
	} else if (ResourceCache::has(p_path)) {
		EditorNode::get_singleton()->show_warning(vformat(TTR("Resource '%s' is in use.\nChanges will only take effect when reloaded."), p_path.get_file()));
	}
}

void DependencyEditor::_bind_methods() {
}

DependencyEditor::DependencyEditor() {
	VBoxContainer *vb = memnew(VBoxContainer);
	vb->set_name(TTR("Dependencies"));
	add_child(vb);

	tree = memnew(Tree);
	tree->set_columns(2);
	tree->set_column_titles_visible(true);
	tree->set_column_title(0, TTR("Resource"));
	tree->set_column_title(1, TTR("Path"));
	tree->set_hide_root(true);
	tree->connect("button_pressed", callable_mp(this, &DependencyEditor::_load_pressed));

	HBoxContainer *hbc = memnew(HBoxContainer);
	Label *label = memnew(Label(TTR("Dependencies:")));
	hbc->add_child(label);
	hbc->add_spacer();
	fixdeps = memnew(Button(TTR("Fix Broken")));
	hbc->add_child(fixdeps);
	fixdeps->connect("pressed", callable_mp(this, &DependencyEditor::_fix_all));

	vb->add_child(hbc);

	MarginContainer *mc = memnew(MarginContainer);
	mc->set_v_size_flags(Control::SIZE_EXPAND_FILL);

	mc->add_child(tree);
	vb->add_child(mc);

	set_title(TTR("Dependency Editor"));
	search = memnew(EditorFileDialog);
	search->connect("file_selected", callable_mp(this, &DependencyEditor::_searched));
	search->set_file_mode(EditorFileDialog::FILE_MODE_OPEN_FILE);
	search->set_title(TTR("Search Replacement Resource:"));
	add_child(search);
}

/////////////////////////////////////
void DependencyEditorOwners::_list_rmb_select(int p_item, const Vector2 &p_pos) {
	file_options->clear();
	file_options->set_size(Size2(1, 1));
	if (p_item >= 0) {
		file_options->add_item(TTR("Open"), FILE_OPEN);
	}

	file_options->set_position(owners->get_global_position() + p_pos);
	file_options->popup();
}

void DependencyEditorOwners::_select_file(int p_idx) {
	String fpath = owners->get_item_text(p_idx);

	if (ResourceLoader::get_resource_type(fpath) == "PackedScene") {
		editor->open_request(fpath);
		hide();
		emit_signal("confirmed");
	}
}

void DependencyEditorOwners::_file_option(int p_option) {
	switch (p_option) {
		case FILE_OPEN: {
			int idx = owners->get_current();
			if (idx < 0 || idx >= owners->get_item_count()) {
				break;
			}
			_select_file(idx);
		} break;
	}
}

void DependencyEditorOwners::_bind_methods() {
}

void DependencyEditorOwners::_fill_owners(EditorFileSystemDirectory *efsd) {
	if (!efsd) {
		return;
	}

	for (int i = 0; i < efsd->get_subdir_count(); i++) {
		_fill_owners(efsd->get_subdir(i));
	}

	for (int i = 0; i < efsd->get_file_count(); i++) {
		Vector<String> deps = efsd->get_file_deps(i);
		bool found = false;
		for (int j = 0; j < deps.size(); j++) {
			if (deps[j] == editing) {
				found = true;
				break;
			}
		}
		if (!found) {
			continue;
		}

		Ref<Texture2D> icon = EditorNode::get_singleton()->get_class_icon(efsd->get_file_type(i));

		owners->add_item(efsd->get_file_path(i), icon);
	}
}

void DependencyEditorOwners::show(const String &p_path) {
	editing = p_path;
	owners->clear();
	_fill_owners(EditorFileSystem::get_singleton()->get_filesystem());
	popup_centered_ratio(0.3);

	set_title(TTR("Owners Of:") + " " + p_path.get_file());
}

DependencyEditorOwners::DependencyEditorOwners(EditorNode *p_editor) {
	editor = p_editor;

	file_options = memnew(PopupMenu);
	add_child(file_options);
	file_options->connect("id_pressed", callable_mp(this, &DependencyEditorOwners::_file_option));

	owners = memnew(ItemList);
	owners->set_select_mode(ItemList::SELECT_SINGLE);
	owners->connect("item_rmb_selected", callable_mp(this, &DependencyEditorOwners::_list_rmb_select));
	owners->connect("item_activated", callable_mp(this, &DependencyEditorOwners::_select_file));
	owners->set_allow_rmb_select(true);
	add_child(owners);
}

///////////////////////

void DependencyRemoveDialog::_find_files_in_removed_folder(EditorFileSystemDirectory *efsd, const String &p_folder) {
	if (!efsd) {
		return;
	}

	for (int i = 0; i < efsd->get_subdir_count(); ++i) {
		_find_files_in_removed_folder(efsd->get_subdir(i), p_folder);
	}
	for (int i = 0; i < efsd->get_file_count(); i++) {
		String file = efsd->get_file_path(i);
		ERR_FAIL_COND(all_remove_files.has(file)); //We are deleting a directory which is contained in a directory we are deleting...
		all_remove_files[file] = p_folder; //Point the file to the ancestor directory we are deleting so we know what to parent it under in the tree.
	}
}

void DependencyRemoveDialog::_find_all_removed_dependencies(EditorFileSystemDirectory *efsd, Vector<RemovedDependency> &p_removed) {
	if (!efsd) {
		return;
	}

	for (int i = 0; i < efsd->get_subdir_count(); i++) {
		_find_all_removed_dependencies(efsd->get_subdir(i), p_removed);
	}

	for (int i = 0; i < efsd->get_file_count(); i++) {
		const String path = efsd->get_file_path(i);

		//It doesn't matter if a file we are about to delete will have some of its dependencies removed too
		if (all_remove_files.has(path)) {
			continue;
		}

		Vector<String> all_deps = efsd->get_file_deps(i);
		for (int j = 0; j < all_deps.size(); ++j) {
			if (all_remove_files.has(all_deps[j])) {
				RemovedDependency dep;
				dep.file = path;
				dep.file_type = efsd->get_file_type(i);
				dep.dependency = all_deps[j];
				dep.dependency_folder = all_remove_files[all_deps[j]];
				p_removed.push_back(dep);
			}
		}
	}
}

void DependencyRemoveDialog::_build_removed_dependency_tree(const Vector<RemovedDependency> &p_removed) {
	owners->clear();
	owners->create_item(); // root

	Map<String, TreeItem *> tree_items;
	for (int i = 0; i < p_removed.size(); i++) {
		RemovedDependency rd = p_removed[i];

		//Ensure that the dependency is already in the tree
		if (!tree_items.has(rd.dependency)) {
			if (rd.dependency_folder.length() > 0) {
				//Ensure the ancestor folder is already in the tree
				if (!tree_items.has(rd.dependency_folder)) {
					TreeItem *folder_item = owners->create_item(owners->get_root());
					folder_item->set_text(0, rd.dependency_folder);
					folder_item->set_icon(0, owners->get_theme_icon("Folder", "EditorIcons"));
					tree_items[rd.dependency_folder] = folder_item;
				}
				TreeItem *dependency_item = owners->create_item(tree_items[rd.dependency_folder]);
				dependency_item->set_text(0, rd.dependency);
				dependency_item->set_icon(0, owners->get_theme_icon("Warning", "EditorIcons"));
				tree_items[rd.dependency] = dependency_item;
			} else {
				TreeItem *dependency_item = owners->create_item(owners->get_root());
				dependency_item->set_text(0, rd.dependency);
				dependency_item->set_icon(0, owners->get_theme_icon("Warning", "EditorIcons"));
				tree_items[rd.dependency] = dependency_item;
			}
		}

		//List this file under this dependency
		Ref<Texture2D> icon = EditorNode::get_singleton()->get_class_icon(rd.file_type);
		TreeItem *file_item = owners->create_item(tree_items[rd.dependency]);
		file_item->set_text(0, rd.file);
		file_item->set_icon(0, icon);
	}
}

void DependencyRemoveDialog::show(const Vector<String> &p_folders, const Vector<String> &p_files) {
	all_remove_files.clear();
	dirs_to_delete.clear();
	files_to_delete.clear();
	owners->clear();

	for (int i = 0; i < p_folders.size(); ++i) {
		String folder = p_folders[i].ends_with("/") ? p_folders[i] : (p_folders[i] + "/");
		_find_files_in_removed_folder(EditorFileSystem::get_singleton()->get_filesystem_path(folder), folder);
		dirs_to_delete.push_back(folder);
	}
	for (int i = 0; i < p_files.size(); ++i) {
		all_remove_files[p_files[i]] = String();
		files_to_delete.push_back(p_files[i]);
	}

	Vector<RemovedDependency> removed_deps;
	_find_all_removed_dependencies(EditorFileSystem::get_singleton()->get_filesystem(), removed_deps);
	removed_deps.sort();
	if (removed_deps.is_empty()) {
		owners->hide();
		text->set_text(TTR("Remove selected files from the project? (no undo)\nYou can find the removed files in the system trash to restore them."));
		set_size(Size2());
		popup_centered();
	} else {
		_build_removed_dependency_tree(removed_deps);
		owners->show();
		text->set_text(TTR("The files being removed are required by other resources in order for them to work.\nRemove them anyway? (no undo)\nYou can find the removed files in the system trash to restore them."));
		popup_centered(Size2(500, 350));
	}
	EditorFileSystem::get_singleton()->scan_changes();
}

void DependencyRemoveDialog::ok_pressed() {
	for (int i = 0; i < files_to_delete.size(); ++i) {
		if (ResourceCache::has(files_to_delete[i])) {
			Resource *res = ResourceCache::get(files_to_delete[i]);
			res->set_path("");
		}

		// If the file we are deleting for e.g. the main scene, default environment,
		// or audio bus layout, we must clear its definition in Project Settings.
		if (files_to_delete[i] == String(ProjectSettings::get_singleton()->get("application/config/icon"))) {
			ProjectSettings::get_singleton()->set("application/config/icon", "");
		}
		if (files_to_delete[i] == String(ProjectSettings::get_singleton()->get("application/run/main_scene"))) {
			ProjectSettings::get_singleton()->set("application/run/main_scene", "");
		}
		if (files_to_delete[i] == String(ProjectSettings::get_singleton()->get("application/boot_splash/image"))) {
			ProjectSettings::get_singleton()->set("application/boot_splash/image", "");
		}
		if (files_to_delete[i] == String(ProjectSettings::get_singleton()->get("rendering/environment/default_environment"))) {
			ProjectSettings::get_singleton()->set("rendering/environment/default_environment", "");
		}
		if (files_to_delete[i] == String(ProjectSettings::get_singleton()->get("display/mouse_cursor/custom_image"))) {
			ProjectSettings::get_singleton()->set("display/mouse_cursor/custom_image", "");
		}
		if (files_to_delete[i] == String(ProjectSettings::get_singleton()->get("gui/theme/custom"))) {
			ProjectSettings::get_singleton()->set("gui/theme/custom", "");
		}
		if (files_to_delete[i] == String(ProjectSettings::get_singleton()->get("gui/theme/custom_font"))) {
			ProjectSettings::get_singleton()->set("gui/theme/custom_font", "");
		}
		if (files_to_delete[i] == String(ProjectSettings::get_singleton()->get("audio/default_bus_layout"))) {
			ProjectSettings::get_singleton()->set("audio/default_bus_layout", "");
		}

		String path = OS::get_singleton()->get_resource_dir() + files_to_delete[i].replace_first("res://", "/");
		print_verbose("Moving to trash: " + path);
		Error err = OS::get_singleton()->move_to_trash(path);
		if (err != OK) {
			EditorNode::get_singleton()->add_io_error(TTR("Cannot remove:") + "\n" + files_to_delete[i] + "\n");
		} else {
			emit_signal("file_removed", files_to_delete[i]);
		}
	}

	if (dirs_to_delete.size() == 0) {
		// If we only deleted files we should only need to tell the file system about the files we touched.
		for (int i = 0; i < files_to_delete.size(); ++i) {
			EditorFileSystem::get_singleton()->update_file(files_to_delete[i]);
		}
	} else {
		for (int i = 0; i < dirs_to_delete.size(); ++i) {
			String path = OS::get_singleton()->get_resource_dir() + dirs_to_delete[i].replace_first("res://", "/");
			print_verbose("Moving to trash: " + path);
			Error err = OS::get_singleton()->move_to_trash(path);
			if (err != OK) {
				EditorNode::get_singleton()->add_io_error(TTR("Cannot remove:") + "\n" + dirs_to_delete[i] + "\n");
			} else {
				emit_signal("folder_removed", dirs_to_delete[i]);
			}
		}

		EditorFileSystem::get_singleton()->scan_changes();
	}

	// If some files/dirs would be deleted, favorite dirs need to be updated
	Vector<String> previous_favorites = EditorSettings::get_singleton()->get_favorites();
	Vector<String> new_favorites;

	for (int i = 0; i < previous_favorites.size(); ++i) {
		if (previous_favorites[i].ends_with("/")) {
			if (dirs_to_delete.find(previous_favorites[i]) < 0) {
				new_favorites.push_back(previous_favorites[i]);
			}
		} else {
			if (files_to_delete.find(previous_favorites[i]) < 0) {
				new_favorites.push_back(previous_favorites[i]);
			}
		}
	}

	if (new_favorites.size() < previous_favorites.size()) {
		EditorSettings::get_singleton()->set_favorites(new_favorites);
	}
}

void DependencyRemoveDialog::_bind_methods() {
	ADD_SIGNAL(MethodInfo("file_removed", PropertyInfo(Variant::STRING, "file")));
	ADD_SIGNAL(MethodInfo("folder_removed", PropertyInfo(Variant::STRING, "folder")));
}

DependencyRemoveDialog::DependencyRemoveDialog() {
	get_ok_button()->set_text(TTR("Remove"));

	VBoxContainer *vb = memnew(VBoxContainer);
	add_child(vb);

	text = memnew(Label);
	vb->add_child(text);

	owners = memnew(Tree);
	owners->set_hide_root(true);
	vb->add_child(owners);
	owners->set_v_size_flags(Control::SIZE_EXPAND_FILL);
}

//////////////

void DependencyErrorDialog::show(Mode p_mode, const String &p_for_file, const Vector<String> &report) {
	mode = p_mode;
	for_file = p_for_file;
	set_title(TTR("Error loading:") + " " + p_for_file.get_file());
	files->clear();

	TreeItem *root = files->create_item(nullptr);
	for (int i = 0; i < report.size(); i++) {
		String dep;
		String type = "Object";
		dep = report[i].get_slice("::", 0);
		if (report[i].get_slice_count("::") > 0) {
			type = report[i].get_slice("::", 1);
		}

		Ref<Texture2D> icon = EditorNode::get_singleton()->get_class_icon(type);

		TreeItem *ti = files->create_item(root);
		ti->set_text(0, dep);
		ti->set_icon(0, icon);
	}

	popup_centered();
}

void DependencyErrorDialog::ok_pressed() {
	switch (mode) {
		case MODE_SCENE:
			EditorNode::get_singleton()->load_scene(for_file, true);
			break;
		case MODE_RESOURCE:
			EditorNode::get_singleton()->load_resource(for_file, true);
			break;
	}
}

void DependencyErrorDialog::custom_action(const String &) {
	EditorNode::get_singleton()->fix_dependencies(for_file);
}

DependencyErrorDialog::DependencyErrorDialog() {
	VBoxContainer *vb = memnew(VBoxContainer);
	add_child(vb);

	files = memnew(Tree);
	files->set_hide_root(true);
	vb->add_margin_child(TTR("Load failed due to missing dependencies:"), files, true);
	files->set_v_size_flags(Control::SIZE_EXPAND_FILL);

	set_min_size(Size2(500, 220) * EDSCALE);
	get_ok_button()->set_text(TTR("Open Anyway"));
	get_cancel_button()->set_text(TTR("Close"));

	text = memnew(Label);
	vb->add_child(text);
	text->set_text(TTR("Which action should be taken?"));

	mode = Mode::MODE_RESOURCE;

	fdep = add_button(TTR("Fix Dependencies"), true, "fixdeps");

	set_title(TTR("Errors loading!"));
}

//////////////////////////////////////////////////////////////////////

void OrphanResourcesDialog::ok_pressed() {
	paths.clear();

	_find_to_delete(files->get_root(), paths);
	if (paths.is_empty()) {
		return;
	}

	delete_confirm->set_text(vformat(TTR("Permanently delete %d item(s)? (No undo!)"), paths.size()));
	delete_confirm->popup_centered();
}

bool OrphanResourcesDialog::_fill_owners(EditorFileSystemDirectory *efsd, HashMap<String, int> &refs, TreeItem *p_parent) {
	if (!efsd) {
		return false;
	}

	bool has_children = false;

	for (int i = 0; i < efsd->get_subdir_count(); i++) {
		TreeItem *dir_item = nullptr;
		if (p_parent) {
			dir_item = files->create_item(p_parent);
			dir_item->set_text(0, efsd->get_subdir(i)->get_name());
			dir_item->set_icon(0, files->get_theme_icon("folder", "FileDialog"));
		}
		bool children = _fill_owners(efsd->get_subdir(i), refs, dir_item);

		if (p_parent) {
			if (!children) {
				memdelete(dir_item);
			} else {
				has_children = true;
			}
		}
	}

	for (int i = 0; i < efsd->get_file_count(); i++) {
		if (!p_parent) {
			Vector<String> deps = efsd->get_file_deps(i);
			for (int j = 0; j < deps.size(); j++) {
				if (!refs.has(deps[j])) {
					refs[deps[j]] = 1;
				}
			}
		} else {
			String path = efsd->get_file_path(i);
			if (!refs.has(path)) {
				TreeItem *ti = files->create_item(p_parent);
				ti->set_cell_mode(0, TreeItem::CELL_MODE_CHECK);
				ti->set_text(0, efsd->get_file(i));
				ti->set_editable(0, true);

				String type = efsd->get_file_type(i);

				Ref<Texture2D> icon = EditorNode::get_singleton()->get_class_icon(type);
				ti->set_icon(0, icon);
				int ds = efsd->get_file_deps(i).size();
				ti->set_text(1, itos(ds));
				if (ds) {
					ti->add_button(1, files->get_theme_icon("GuiVisibilityVisible", "EditorIcons"), -1, false, TTR("Show Dependencies"));
				}
				ti->set_metadata(0, path);
				has_children = true;
			}
		}
	}

	return has_children;
}

void OrphanResourcesDialog::refresh() {
	HashMap<String, int> refs;
	_fill_owners(EditorFileSystem::get_singleton()->get_filesystem(), refs, nullptr);
	files->clear();
	TreeItem *root = files->create_item();
	_fill_owners(EditorFileSystem::get_singleton()->get_filesystem(), refs, root);
}

void OrphanResourcesDialog::show() {
	refresh();
	popup_centered_ratio(0.4);
}

void OrphanResourcesDialog::_find_to_delete(TreeItem *p_item, List<String> &paths) {
	while (p_item) {
		if (p_item->get_cell_mode(0) == TreeItem::CELL_MODE_CHECK && p_item->is_checked(0)) {
			paths.push_back(p_item->get_metadata(0));
		}

		if (p_item->get_children()) {
			_find_to_delete(p_item->get_children(), paths);
		}

		p_item = p_item->get_next();
	}
}

void OrphanResourcesDialog::_delete_confirm() {
	DirAccess *da = DirAccess::create(DirAccess::ACCESS_RESOURCES);
	for (List<String>::Element *E = paths.front(); E; E = E->next()) {
		da->remove(E->get());
		EditorFileSystem::get_singleton()->update_file(E->get());
	}
	memdelete(da);
	refresh();
}

void OrphanResourcesDialog::_button_pressed(Object *p_item, int p_column, int p_id) {
	TreeItem *ti = Object::cast_to<TreeItem>(p_item);

	String path = ti->get_metadata(0);
	dep_edit->edit(path);
}

void OrphanResourcesDialog::_bind_methods() {
}

OrphanResourcesDialog::OrphanResourcesDialog() {
	set_title(TTR("Orphan Resource Explorer"));
	delete_confirm = memnew(ConfirmationDialog);
	get_ok_button()->set_text(TTR("Delete"));
	add_child(delete_confirm);
	dep_edit = memnew(DependencyEditor);
	add_child(dep_edit);
	delete_confirm->connect("confirmed", callable_mp(this, &OrphanResourcesDialog::_delete_confirm));
	set_hide_on_ok(false);

	VBoxContainer *vbc = memnew(VBoxContainer);
	add_child(vbc);

	files = memnew(Tree);
	files->set_columns(2);
	files->set_column_titles_visible(true);
	files->set_column_min_width(1, 100);
	files->set_column_expand(0, true);
	files->set_column_expand(1, false);
	files->set_column_title(0, TTR("Resource"));
	files->set_column_title(1, TTR("Owns"));
	files->set_hide_root(true);
	vbc->add_margin_child(TTR("Resources Without Explicit Ownership:"), files, true);
	files->connect("button_pressed", callable_mp(this, &OrphanResourcesDialog::_button_pressed));
}