/*
 * Copyright (c) 2023 New Vector Ltd
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.element.android.libraries.androidutils.hash

import java.security.MessageDigest
import java.util.Locale

/**
 * Compute a Hash of a String, using SHA-512 algorithm.
 */
fun String.hash() = try {
    val digest = MessageDigest.getInstance("SHA-512")
    digest.update(toByteArray())
    digest.digest()
            .joinToString("") { String.format(Locale.ROOT, "%02X", it) }
            .lowercase(Locale.ROOT)
} catch (exc: Exception) {
    // Should not happen, but just in case
    hashCode().toString()
}
