/**************************************************************************/
/*  directory_create_dialog.cpp                                           */
/**************************************************************************/
/*                         This file is part of:                          */
/*                             GODOT ENGINE                               */
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
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/* a copy of this software and associated documentation files (the        */
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#include "directory_create_dialog.h"

#include "core/io/dir_access.h"
#include "editor/editor_node.h"
#include "editor/gui/editor_validation_panel.h"
#include "editor/themes/editor_scale.h"
#include "scene/gui/box_container.h"
#include "scene/gui/label.h"
#include "scene/gui/line_edit.h"

static String sanitize_input(const String &p_path) {
	String path = p_path.strip_edges();
	if (path.ends_with("/")) {
		path = path.left(path.length() - 1);
	}
	return path;
}

String DirectoryCreateDialog::_validate_path(const String &p_path) const {
	if (p_path.is_empty()) {
		return TTR("Folder name cannot be empty.");
	}

	if (p_path.contains("\\") || p_path.contains(":") || p_path.contains("*") ||
			p_path.contains("|") || p_path.contains(">")) {
		return TTR("Folder name contains invalid characters.");
	}

	for (const String &part : p_path.split("/")) {
		if (part.is_empty()) {
			return TTR("Folder name cannot be empty.");
		}
		if (part.ends_with(" ") || part[0] == ' ') {
			return TTR("Folder name cannot begin or end with a space.");
		}
		if (part[0] == '.') {
			return TTR("Folder name cannot begin with a dot.");
		}
	}

	Ref<DirAccess> da = DirAccess::create(DirAccess::ACCESS_RESOURCES);
	da->change_dir(base_dir);
	if (da->file_exists(p_path)) {
		return TTR("File with that name already exists.");
	}
	if (da->dir_exists(p_path)) {
		return TTR("Folder with that name already exists.");
	}

	return String();
}

void DirectoryCreateDialog::_on_dir_path_changed() {
	const String path = sanitize_input(dir_path->get_text());
	const String error = _validate_path(path);

	if (error.is_empty()) {
		if (path.contains("/")) {
			validation_panel->set_message(EditorValidationPanel::MSG_ID_DEFAULT, TTR("Using slashes in folder names will create subfolders recursively."), EditorValidationPanel::MSG_OK);
		}
	} else {
		validation_panel->set_message(EditorValidationPanel::MSG_ID_DEFAULT, error, EditorValidationPanel::MSG_ERROR);
	}
}

void DirectoryCreateDialog::ok_pressed() {
	const String path = sanitize_input(dir_path->get_text());

	// The OK button should be disabled if the path is invalid, but just in case.
	const String error = _validate_path(path);
	ERR_FAIL_COND_MSG(!error.is_empty(), error);

	Error err;
	Ref<DirAccess> da = DirAccess::create(DirAccess::ACCESS_RESOURCES);

	err = da->change_dir(base_dir);
	ERR_FAIL_COND_MSG(err != OK, "Cannot open directory '" + base_dir + "'.");

	print_verbose("Making folder " + path + " in " + base_dir);
	err = da->make_dir_recursive(path);

	if (err == OK) {
		emit_signal(SNAME("dir_created"), base_dir.path_join(path));
	} else {
		EditorNode::get_singleton()->show_warning(TTR("Could not create folder."));
	}
	hide();
}

void DirectoryCreateDialog::_post_popup() {
	ConfirmationDialog::_post_popup();
	dir_path->grab_focus();
}

void DirectoryCreateDialog::config(const String &p_base_dir) {
	base_dir = p_base_dir;
	label->set_text(vformat(TTR("Create new folder in %s:"), base_dir));
	dir_path->set_text("new folder");
	dir_path->select_all();
	validation_panel->update();
}

void DirectoryCreateDialog::_bind_methods() {
	ADD_SIGNAL(MethodInfo("dir_created", PropertyInfo(Variant::STRING, "path")));
}

DirectoryCreateDialog::DirectoryCreateDialog() {
	set_title(TTR("Create Folder"));
	set_min_size(Size2i(480, 0) * EDSCALE);

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

	label = memnew(Label);
	label->set_text_overrun_behavior(TextServer::OVERRUN_TRIM_WORD_ELLIPSIS);
	vb->add_child(label);

	dir_path = memnew(LineEdit);
	vb->add_child(dir_path);
	register_text_enter(dir_path);

	Control *spacing = memnew(Control);
	spacing->set_custom_minimum_size(Size2(0, 10 * EDSCALE));
	vb->add_child(spacing);

	validation_panel = memnew(EditorValidationPanel);
	vb->add_child(validation_panel);
	validation_panel->add_line(EditorValidationPanel::MSG_ID_DEFAULT, TTR("Folder name is valid."));
	validation_panel->set_update_callback(callable_mp(this, &DirectoryCreateDialog::_on_dir_path_changed));
	validation_panel->set_accept_button(get_ok_button());

	dir_path->connect(SceneStringName(text_changed), callable_mp(validation_panel, &EditorValidationPanel::update).unbind(1));
}