// Copyright (c) 2014-2019, MyMonero.com
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
//	conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
//	of conditions and the following disclaimer in the documentation and/or other
//	materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
//	used to endorse or promote products derived from this software without specific
//	prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
"use strict";
//
function IsValidPaymentIDOrNoPaymentID(payment_id__orNil) {
	if (
		payment_id__orNil == null ||
		payment_id__orNil == "" ||
		typeof payment_id__orNil == "undefined"
	) {
		return true; // no pid
	}
	let payment_id = payment_id__orNil;
	if (IsValidShortPaymentID(payment_id)) {
		return true;
	}
	if (IsValidLongPaymentID(payment_id)) {
		return true;
	}
	return false;
}
exports.IsValidPaymentIDOrNoPaymentID = IsValidPaymentIDOrNoPaymentID;
//
function IsValidShortPaymentID(payment_id) {
	return IsValidPaymentIDOfLength(payment_id, 16);
}
exports.IsValidShortPaymentID = IsValidShortPaymentID;
//
function IsValidLongPaymentID(payment_id) {
	return IsValidPaymentIDOfLength(payment_id, 64);
}
exports.IsValidLongPaymentID = IsValidLongPaymentID;
//
function IsValidPaymentIDOfLength(payment_id, required_length) {
	if (required_length != 16 && required_length != 64) {
		throw "unexpected IsValidPaymentIDOfLength required_length";
	}
	let payment_id_length = payment_id.length;
	if (payment_id_length !== required_length) {
		// new encrypted short
		return false; // invalid length
	}
	let pattern = RegExp("^[0-9a-fA-F]{" + required_length + "}$");
	if (pattern.test(payment_id) != true) {
		// not a valid required_length char pid
		return false; // then not valid
	}
	return true;
}
exports.IsValidShortPaymentID = IsValidShortPaymentID;