/*
 * Copyright 2020 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.api.cache

sealed class CacheStrategy {
    /**
     * Data is always fetched from the server.
     */
    object NoCache : CacheStrategy()

    /**
     * Once data is retrieved, it is stored for the provided amount of time.
     * In case of error, and if strict is set to false, the cache can be returned if available
     */
    data class TtlCache(val validityDurationInMillis: Long, val strict: Boolean) : CacheStrategy()

    /**
     * Once retrieved, the data is stored in cache and will be always get from the cache.
     */
    object InfiniteCache : CacheStrategy()
}
