/*
 * Copyright 2016 The Simple File Server Authors
 *
 * 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.sfs.validate;

import io.vertx.core.json.JsonObject;
import org.sfs.util.HttpRequestValidationException;
import org.sfs.vo.TransientSegment;
import org.sfs.vo.TransientVersion;
import rx.functions.Func1;

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

public class ValidateVersionSegmentsHasData implements Func1<TransientVersion, TransientVersion> {

    @Override
    public TransientVersion call(TransientVersion transientVersion) {
        for (TransientSegment segment : transientVersion.getSegments()) {
            if ((segment.isTinyData() && segment.isTinyDataDeleted()) || (!segment.isTinyData() && segment.getBlobs().isEmpty())) {

                JsonObject jsonObject = new JsonObject()
                        .put("message", format("Version %d has no data in segment %d", transientVersion.getId(), segment.getId()));

                throw new HttpRequestValidationException(HTTP_INTERNAL_ERROR, jsonObject);
            }
        }
        return transientVersion;
    }
}