/*
 *  ******************************************************************************
 *  *
 *  *
 *  * 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.
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 *  * SPDX-License-Identifier: Apache-2.0
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package org.nd4j.linalg.api.ops.impl.layers.convolution.config;

import java.util.LinkedHashMap;
import java.util.Map;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.NonNull;
import org.nd4j.common.base.Preconditions;
import org.nd4j.linalg.util.ConvConfigUtil;

@Data
@Builder
@NoArgsConstructor
public class Conv1DConfig extends BaseConvolutionConfig {
    public static final String NCW = "NCW";
    public static final String NWC = "NWC";

    @Builder.Default
    private long k = -1L;
    @Builder.Default
    private long s = 1; // strides
    @Builder.Default
    private long p = 0; // padding
    @Builder.Default
    private long d = 1; // dilation
    @Builder.Default
    private String dataFormat = NCW;
    private PaddingMode paddingMode;

    public Conv1DConfig(long k, long s, long p, long d, String dataFormat, @NonNull PaddingMode paddingMode) {
        this.k = k;
        this.s = s;
        this.p = p;
        this.d = d;
        this.dataFormat = dataFormat;
        this.paddingMode = paddingMode;

        validate();
    }

    public Conv1DConfig(long k, long s, long p, String dataFormat, boolean isSameMode) {
        this.k = k;
        this.s = s;
        this.p = p;
        this.dataFormat = dataFormat;
        this.paddingMode = isSameMode ? PaddingMode.SAME : PaddingMode.VALID;

        validate();
    }

    public boolean isNWC(){
        Preconditions.checkState(dataFormat.equalsIgnoreCase(NCW) || dataFormat.equalsIgnoreCase(NWC),
                "Data format must be one of %s or %s, got %s", NCW, NWC, dataFormat);
        return dataFormat.equalsIgnoreCase(NWC);
    }

    public void isNWC(boolean isNWC){
        if(isNWC){
            dataFormat = NWC;
        } else {
            dataFormat = NCW;
        }
    }

    @Override
    public Map<String, Object> toProperties() {
        Map<String, Object> ret = new LinkedHashMap<>();
        ret.put("k", k);
        ret.put("s", s);
        ret.put("p", p);
        ret.put("d", d);
        ret.put("paddingMode", paddingMode);
        ret.put("dataFormat", dataFormat);
        return ret;
    }

    @Override
    protected void validate() {
        ConvConfigUtil.validate1D(k, s, p, d);
        Preconditions.checkArgument(dataFormat != null, "Data format can't be null");
    }


}
