/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.sysds.runtime.matrix.data;

import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
import java.util.ArrayList;

import org.apache.hadoop.io.WritableComparable;
import org.apache.sysds.runtime.DMLRuntimeException;
import org.apache.sysds.runtime.instructions.cp.CM_COV_Object;
import org.apache.sysds.runtime.instructions.spark.data.IndexedMatrixValue;
import org.apache.sysds.runtime.matrix.operators.AggregateOperator;
import org.apache.sysds.runtime.matrix.operators.AggregateUnaryOperator;
import org.apache.sysds.runtime.matrix.operators.BinaryOperator;
import org.apache.sysds.runtime.matrix.operators.Operator;
import org.apache.sysds.runtime.matrix.operators.ReorgOperator;
import org.apache.sysds.runtime.matrix.operators.ScalarOperator;
import org.apache.sysds.runtime.matrix.operators.UnaryOperator;
import org.apache.sysds.runtime.util.IndexRange;

@SuppressWarnings("rawtypes")
public class CM_N_COVCell extends MatrixValue implements WritableComparable
{
	private CM_COV_Object cm=new CM_COV_Object();
	
	@Override
	public String toString() {
		return cm.toString();
	}
	
	@Override
	public MatrixValue aggregateUnaryOperations(AggregateUnaryOperator op,
			MatrixValue result, int blen, MatrixIndexes indexesIn) {
		throw new DMLRuntimeException("operation not supported for CM_N_COVCell");
	}

	@Override
	public MatrixValue binaryOperations(BinaryOperator op,
			MatrixValue thatValue, MatrixValue result) {
		throw new DMLRuntimeException("operation not supported for CM_N_COVCell");
	}

	@Override
	public MatrixValue binaryOperationsInPlace(BinaryOperator op, MatrixValue thatValue) {
		throw new DMLRuntimeException("operation not supported for CM_N_COVCell");
	}

	@Override
	public void copy(MatrixValue that, boolean sp) {
		throw new RuntimeException("operation not supported for CM_N_COVCell");
	}

	@Override
	public void copy(MatrixValue that) {
		throw new RuntimeException("operation not supported for CM_N_COVCell");
	}

	@Override
	public long getNonZeros() {
		return 1;
	}

	@Override
	public int getNumColumns() {
		return 1;
	}

	@Override
	public int getNumRows() {
		return 1;
	}

	@Override
	public double getValue(int r, int c) {
		throw new RuntimeException("operation not supported for CM_N_COVCell");
	}

	@Override
	public void incrementalAggregate(AggregateOperator aggOp,
			MatrixValue correction, MatrixValue newWithCorrection, boolean deep) {
		throw new RuntimeException("operation not supported for CM_N_COVCell");
	}
	
	@Override
	public void incrementalAggregate(AggregateOperator aggOp,
			MatrixValue newWithCorrection) {
		throw new RuntimeException("operation not supported for CM_N_COVCell");
	}

	@Override
	public boolean isInSparseFormat() {
		return false;
	}
	
	@Override
	public boolean isEmpty(){
		return false;
	}

	@Override
	public MatrixValue reorgOperations(ReorgOperator op, MatrixValue result,
			int startRow, int startColumn, int length) {
		throw new RuntimeException("operation not supported for CM_N_COVCell");
	}

	@Override
	public void reset() {}

	@Override
	public void reset(int rl, int cl) {}

	@Override
	public void reset(int rl, int cl, boolean sp) {}
	
	@Override
	public void reset(int rl, int cl, boolean sp, long nnzs) {}

	@Override
	public void reset(int rl, int cl, double v) {}

	@Override
	public MatrixValue scalarOperations(ScalarOperator op, MatrixValue result) {
		throw new DMLRuntimeException("operation not supported for CM_N_COVCell");
	}

	@Override
	public void setValue(int r, int c, double v) {
		throw new RuntimeException("operation not supported for CM_N_COVCell");
	}

	@Override
	public MatrixValue unaryOperations(UnaryOperator op, MatrixValue result) {
		throw new DMLRuntimeException("operation not supported for CM_N_COVCell");
	}

	@Override
	public void readFields(DataInput in) throws IOException {
		cm.w=in.readDouble();
		cm.mean.read(in);
		cm.m2.read(in);
		cm.m3.read(in);
		cm.m4.read(in);
		cm.mean_v.read(in);
		cm.c2.read(in);
	}

	@Override
	public void write(DataOutput out) throws IOException {
		out.writeDouble(cm.w);
		cm.mean.write(out);
		cm.m2.write(out);
		cm.m3.write(out);
		cm.m4.write(out);
		cm.mean_v.write(out);
		cm.c2.write(out);
	}

	@Override
	public int compareTo(Object o) 
	{
		if(!(o instanceof CM_N_COVCell))
			return -1;
		
		CM_N_COVCell that=(CM_N_COVCell)o;
		return cm.compareTo(that.cm);
	}
	
	@Override 
	public boolean equals(Object o)
	{
		if(!(o instanceof CM_N_COVCell))
			return false;
		
		CM_N_COVCell that=(CM_N_COVCell)o;
		return (cm==that.cm);
	}
	
	@Override
	public int hashCode() {
		throw new RuntimeException("hashCode() should never be called on instances of this class.");
	}
	
	public CM_COV_Object getCM_N_COVObject()
	{
		return cm;
	}

	public void setCM_N_COVObject(double u, double v, double w)
	{
		cm.w=w;
		cm.mean.set(u,0);
		cm.mean_v.set(v, 0);
		cm.m2.set(0,0);
		cm.m3.set(0,0);
		cm.m4.set(0,0);
		cm.c2.set(0,0);
	}
	public void setCM_N_COVObject(CM_COV_Object that)
	{
		cm.set(that);
	}

	@Override
	public MatrixValue zeroOutOperations(MatrixValue result, IndexRange range, boolean complementary) {
		throw new DMLRuntimeException("operation not supported for CM_N_COVCell");
	}

	@Override
	public void ctableOperations(Operator op, MatrixValue that,
			MatrixValue that2, CTableMap resultMap, MatrixBlock resultBlock) {
		throw new DMLRuntimeException("operation not supported for CM_N_COVCell");
	}

	@Override
	public void ctableOperations(Operator op, MatrixValue that,
			double scalarThat2, boolean ignoreZeros, CTableMap resultMap, MatrixBlock resultBlock) {
		throw new DMLRuntimeException("operation not supported for CM_N_COVCell");
	}

	@Override
	public void ctableOperations(Operator op, double scalarThat,
			double scalarThat2, CTableMap resultMap, MatrixBlock resultBlock) {
		throw new DMLRuntimeException("operation not supported for CM_N_COVCell");
	}
	
	@Override
	public void ctableOperations(Operator op, MatrixIndexes ix1, double scalarThat, boolean left, int blen,
			CTableMap resultMap, MatrixBlock resultBlock) {
		throw new DMLRuntimeException("operation not supported for CM_N_COVCell");
	}

	@Override
	public void ctableOperations(Operator op, double scalarThat,
			MatrixValue that2, CTableMap resultMap, MatrixBlock resultBlock) {
		throw new DMLRuntimeException("operation not supported for CM_N_COVCell");
	}

	@Override
	public void slice(ArrayList<IndexedMatrixValue> outlist,
			IndexRange range, int rowCut, int colCut, int blen, int boundaryRlen, int boundaryClen) {
		throw new DMLRuntimeException("operation not supported for CM_N_COVCell");
	}
	
	@Override
	public MatrixValue replaceOperations(MatrixValue result, double pattern, double replacement) {
		throw new DMLRuntimeException("operation not supported for CM_N_COVCell");
	}

	@Override
	public MatrixValue aggregateUnaryOperations(AggregateUnaryOperator op,
			MatrixValue result, int blen,
			MatrixIndexes indexesIn, boolean inCP) {
		throw new DMLRuntimeException("operation not supported for CM_N_COVCell");
	}

	@Override
	public void append(MatrixValue valueIn2, ArrayList<IndexedMatrixValue> outlist,
			int blen, boolean cbind, boolean m2IsLast, int nextNCol) {
		throw new DMLRuntimeException("operation not supported for CM_N_COVCell");
	}
}