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package org.eclipse.deeplearning4j.frameworkimport.keras.layers.core;

import org.deeplearning4j.nn.modelimport.keras.layers.core.KerasActivation;
import org.deeplearning4j.nn.conf.layers.ActivationLayer;
import org.deeplearning4j.BaseDL4JTest;
import org.deeplearning4j.nn.modelimport.keras.config.Keras1LayerConfiguration;
import org.deeplearning4j.nn.modelimport.keras.config.Keras2LayerConfiguration;
import org.deeplearning4j.nn.modelimport.keras.config.KerasLayerConfiguration;
import org.junit.jupiter.api.Tag;
import org.junit.jupiter.api.Test;
import org.nd4j.common.tests.tags.NativeTag;
import org.nd4j.common.tests.tags.TagNames;

import java.util.HashMap;
import java.util.Map;

import static org.junit.jupiter.api.Assertions.assertEquals;
@Tag(TagNames.FILE_IO)
@Tag(TagNames.KERAS)
@NativeTag
public class KerasActivationLayer extends BaseDL4JTest {

    private final String ACTIVATION_KERAS = "linear";
    private final String ACTIVATION_DL4J = "identity";
    private final String LAYER_NAME = "test_layer";

    private Integer keras1 = 1;
    private Integer keras2 = 2;
    private Keras1LayerConfiguration conf1 = new Keras1LayerConfiguration();
    private Keras2LayerConfiguration conf2 = new Keras2LayerConfiguration();

    @Test
    public void testActivationLayer() throws Exception {
        buildActivationLayer(conf1, keras1);
        buildActivationLayer(conf2, keras2);
    }

    private void buildActivationLayer(KerasLayerConfiguration conf, Integer kerasVersion) throws Exception {
        Map<String, Object> layerConfig = new HashMap<>();
        layerConfig.put(conf.getLAYER_FIELD_CLASS_NAME(), conf.getLAYER_FIELD_ACTIVATION());
        Map<String, Object> config = new HashMap<>();
        config.put(conf.getLAYER_FIELD_ACTIVATION(), ACTIVATION_KERAS);
        config.put(conf.getLAYER_FIELD_NAME(), LAYER_NAME);
        layerConfig.put(conf.getLAYER_FIELD_CONFIG(), config);
        layerConfig.put(conf.getLAYER_FIELD_KERAS_VERSION(), kerasVersion);

        ActivationLayer layer = new KerasActivation(layerConfig).getActivationLayer();
        assertEquals(ACTIVATION_DL4J, layer.getActivationFn().toString());
        assertEquals(LAYER_NAME, layer.getLayerName());
    }

}
