/*
 * Copyright 2019 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 im.vector.matrix.android.internal.util

import java.security.MessageDigest

/**
 * Compute a Hash of a String, using md5 algorithm
 */
fun String.md5() = try {
    val digest = MessageDigest.getInstance("md5")
    digest.update(toByteArray())
    val bytes = digest.digest()
    val sb = StringBuilder()
    for (i in bytes.indices) {
        sb.append(String.format("%02X", bytes[i]))
    }
    sb.toString().toLowerCase()
} catch (exc: Exception) {
    // Should not happen, but just in case
    hashCode().toString()
}
