package info.frostfs.sdk.tools;

import io.grpc.Channel;
import io.grpc.ChannelCredentials;
import io.grpc.netty.NettyChannelBuilder;

import java.net.URI;
import java.net.URISyntaxException;

import static java.util.Objects.isNull;

public class GrpcClient {
    private static final String ERROR_INVALID_HOST_TEMPLATE = "Host %s has invalid format. Error: %s";

    public static Channel initGrpcChannel(String host, ChannelCredentials creds) {
        try {
            URI uri = new URI(host);
            var channelBuilder = isNull(creds) ? NettyChannelBuilder.forAddress(uri.getHost(), uri.getPort())
                    : NettyChannelBuilder.forAddress(uri.getHost(), uri.getPort(), creds);

            return channelBuilder.usePlaintext().build();
        } catch (URISyntaxException exp) {
            throw new IllegalArgumentException(String.format(ERROR_INVALID_HOST_TEMPLATE, host, exp.getMessage()));
        }
    }
}