/*
 * Copyright (C) 2015 SoftIndex LLC.
 *
 * 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.datakernel.cube;

import com.google.common.base.Functions;
import io.datakernel.cube.bean.TestPubRequest;
import io.datakernel.eventloop.Eventloop;
import io.datakernel.stream.StreamDataReceiver;

import java.util.Set;

import static com.google.common.collect.Maps.asMap;
import static com.google.common.collect.Sets.newHashSet;
import static com.google.common.collect.Sets.union;

@SuppressWarnings("unchecked")
public class TestAggregatorSplitter extends AggregatorSplitter<TestPubRequest> {
	private static final AggregatorSplitter.Factory<TestPubRequest> FACTORY = new AggregatorSplitter.Factory<TestPubRequest>() {
		@Override
		public AggregatorSplitter<TestPubRequest> create(Eventloop eventloop) {
			return new TestAggregatorSplitter(eventloop);
		}
	};

	public static Factory<TestPubRequest> factory() {
		return FACTORY;
	}

	public static class AggregationItem {
		// pub
		public int date;
		public int hourOfDay;
		public int pub;

		public final long pubRequests = 1;

		// adv
		public int adv;
		public final long advRequests = 1;

		@Override
		public String toString() {
			return "AggregationItem{date=" + date + ", hourOfDay=" + hourOfDay + ", pub=" + pub + ", pubRequests=" + pubRequests + ", adv=" + adv + ", advRequests=" + advRequests + '}';
		}
	}

	private static final Set<String> PUB_DIMENSIONS = newHashSet("date", "hourOfDay", "pub");

	private static final Set<String> PUB_METRICS = newHashSet("pubRequests");

	private static final Set<String> ADV_DIMENSIONS = newHashSet(union(PUB_DIMENSIONS, newHashSet("adv")));

	private static final Set<String> ADV_METRICS = newHashSet("advRequests");

	private StreamDataReceiver<AggregationItem> pubAggregator;
	private StreamDataReceiver<AggregationItem> advAggregator;
	private final AggregationItem outputItem = new AggregationItem();

	public TestAggregatorSplitter(Eventloop eventloop) {
		super(eventloop);
	}

	@Override
	protected void addOutputs() {
		pubAggregator = addOutput(AggregationItem.class,
				asMap(PUB_DIMENSIONS, Functions.<String>identity()), asMap(PUB_METRICS, Functions.<String>identity()));
		advAggregator = addOutput(AggregationItem.class,
				asMap(ADV_DIMENSIONS, Functions.<String>identity()), asMap(ADV_METRICS, Functions.<String>identity()));
	}

	@Override
	protected void processItem(TestPubRequest pubRequest) {
		outputItem.date = (int) (pubRequest.timestamp / (24 * 60 * 60 * 1000L));
		outputItem.hourOfDay = (byte) ((pubRequest.timestamp / (60 * 60 * 1000L)) % 24);
		outputItem.pub = pubRequest.pub;
		pubAggregator.onData(outputItem);
		for (TestPubRequest.TestAdvRequest remRequest : pubRequest.advRequests) {
			outputItem.adv = remRequest.adv;
			advAggregator.onData(outputItem);
		}
	}
}