/**
 * TrackerMap
 * Copyright (C) 2021-2022  Iván Ávalos <avalos@disroot.org>, Henoch Ojeda <imhenoch@protonmail.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
package mx.trackermap.TrackerMap.utils

import kotlinx.cinterop.addressOf
import kotlinx.cinterop.allocArrayOf
import kotlinx.cinterop.memScoped
import kotlinx.cinterop.usePinned
import platform.Foundation.NSData
import platform.Foundation.create
import platform.posix.memcpy

// Source: https://gist.github.com/noahsark769/61cfb7a8b7231e2069a9dab94cf74a62

fun ByteArray.toData(): NSData = memScoped {
    NSData.create(
        bytes = allocArrayOf(this@toData),
        length = this@toData.size.toULong())
}

fun NSData.toByteArray(): ByteArray = ByteArray(this@toByteArray.length.toInt()).apply {
    usePinned {
        memcpy(it.addressOf(0), this@toByteArray.bytes, this@toByteArray.length)
    }
}