/**
 * Copyright (c) 2020 EmeraldPay, Inc
 * Copyright (c) 2019 ETCDEV GmbH
 *
 * 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.emeraldpay.dshackle.upstream.ethereum

import io.emeraldpay.dshackle.upstream.DefaultUpstream

class EthereumWsConnectionPoolFactory(
    private val id: String,
    private val connections: Int,
    private val ethereumWsConnectionFactory: EthereumWsConnectionFactory
) {

    fun create(upstream: DefaultUpstream?): WsConnectionPool {
        require(upstream == null || upstream.getId() == id) {
            "Creating instance for different upstream. ${upstream?.getId()} != id"
        }
        return if (connections > 1) {
            WsConnectionMultiPool(ethereumWsConnectionFactory, upstream, connections)
        } else {
            WsConnectionSinglePool(ethereumWsConnectionFactory, upstream)
        }
    }
}
