/*
 * Copyright (c) 2021 The Matrix.org Foundation C.I.C.
 *
 * 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 org.matrix.android.sdk.internal.crypto.verification

import org.matrix.android.sdk.api.crypto.VerificationState
import org.matrix.android.sdk.api.crypto.isCanceled

// State transition with control
internal fun VerificationState?.toState(newState: VerificationState): VerificationState {
    // Cancel is always prioritary ?
    // Eg id i found that mac or keys mismatch and send a cancel and the other send a done, i have to
    // consider as canceled
    if (newState.isCanceled()) {
        return newState
    }
    // never move out of cancel
    if (this?.isCanceled() == true) {
        return this
    }
    return newState
}
