/**
 * Copyright (c) 2022 EmeraldPay, Inc
 *
 * 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
import io.emeraldpay.dshackle.upstream.UpstreamAvailability
import reactor.core.publisher.Flux

class WsConnectionSinglePool(
    ethereumWsConnectionFactory: EthereumWsConnectionFactory,
    private val upstream: DefaultUpstream?,
) : WsConnectionPool {
    private val connection = ethereumWsConnectionFactory.createWsConnection {
        upstream?.setStatus(UpstreamAvailability.UNAVAILABLE)
    }

    override fun connect() {
        if (!connection.isConnected) {
            connection.connect()
        }
    }

    override fun getConnection(): WsConnection {
        return connection
    }

    override fun connectionInfoFlux(): Flux<WsConnection.ConnectionInfo> =
        connection.connectionInfoFlux()

    override fun close() {
        connection.close()
    }
}
