/*
 * 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.prestosql.client;

import okhttp3.Request;

import javax.annotation.Nullable;

import java.io.Closeable;
import java.time.ZoneId;
import java.util.Map;
import java.util.Optional;
import java.util.Set;

import static java.lang.String.format;
import static java.net.HttpURLConnection.HTTP_UNAUTHORIZED;

public interface StatementClient
        extends Closeable
{
    String getQuery();

    ZoneId getTimeZone();

    boolean isRunning();

    boolean isClientAborted();

    boolean isClientError();

    boolean isFinished();

    StatementStats getStats();

    QueryStatusInfo currentStatusInfo();

    QueryData currentData();

    QueryStatusInfo finalStatusInfo();

    Optional<String> getSetCatalog();

    Optional<String> getSetSchema();

    Optional<String> getSetPath();

    Map<String, String> getSetSessionProperties();

    Set<String> getResetSessionProperties();

    Map<String, ClientSelectedRole> getSetRoles();

    Map<String, String> getAddedPreparedStatements();

    Set<String> getDeallocatedPreparedStatements();

    @Nullable
    String getStartedTransactionId();

    boolean isClearTransactionId();

    boolean advance();

    void cancelLeafStage();

    @Override
    void close();

    default <T> RuntimeException requestFailedException(String task, Request request, JsonResponse<T> response)
    {
        if (!response.hasValue()) {
            if (response.getStatusCode() == HTTP_UNAUTHORIZED) {
                return new ClientException("Authentication failed" +
                        Optional.ofNullable(response.getStatusMessage())
                                .map(message -> ": " + message)
                                .orElse(""));
            }
            return new RuntimeException(
                    format("Error %s at %s returned an invalid response: %s [Error: %s]", task, request.url(), response, response.getResponseBody()),
                    response.getException());
        }
        return new RuntimeException(format("Error %s at %s returned HTTP %s", task, request.url(), response.getStatusCode()));
    }
}
