/*
 *  ******************************************************************************
 *  *
 *  *
 *  * This program and the accompanying materials are made available under the
 *  * terms of the Apache License, Version 2.0 which is available at
 *  * https://www.apache.org/licenses/LICENSE-2.0.
 *  *
 *  *  See the NOTICE file distributed with this work for additional
 *  *  information regarding copyright ownership.
 *  * 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.
 *  *
 *  * SPDX-License-Identifier: Apache-2.0
 *  *****************************************************************************
 */
package org.nd4j.linalg.api.ops.custom;

import lombok.NoArgsConstructor;
import org.nd4j.autodiff.samediff.SDVariable;
import org.nd4j.autodiff.samediff.SameDiff;
import org.nd4j.linalg.api.buffer.DataType;
import org.nd4j.linalg.api.ops.DynamicCustomOp;

import java.util.Collections;
import java.util.List;

@NoArgsConstructor
public class TriuBp extends DynamicCustomOp {

    public TriuBp(SameDiff sameDiff, SDVariable in, SDVariable grad, int diag) {
        super(sameDiff, new SDVariable[]{in, grad});
        addIArgument(diag);
    }

    public TriuBp(SameDiff sameDiff, SDVariable in, SDVariable grad) {
        super(sameDiff, new SDVariable[]{in, grad});
    }

    @Override
    public String opName() {
        return "triu_bp";
    }


    @Override
    public List<DataType> calculateOutputDataTypes(List<DataType> inputDataTypes) {
        return Collections.singletonList(arg(0).dataType());
    }


}
