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/**
 * Copyright (c) 2022, RTE (http://www.rte-france.com)
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */
package com.powsybl.powerfactory.db;

import com.powsybl.powerfactory.model.*;
import org.apache.commons.math3.linear.BlockRealMatrix;
import org.apache.commons.math3.linear.RealMatrix;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.List;
import java.util.Objects;

/**
 * @author Geoffroy Jamgotchian 
 */
public class DataObjectBuilder {

    private static final Logger LOGGER = LoggerFactory.getLogger(DataObjectBuilder.class);

    private final DataObjectIndex index = new DataObjectIndex();

    private final DataScheme scheme = new DataScheme();

    public DataObjectIndex getIndex() {
        return index;
    }

    public void createClass(String name) {
        Objects.requireNonNull(name);
        if (scheme.classExists(name)) {
            return;
        }
        scheme.addClass(new DataClass(name));
    }

    public void createAttribute(String className, String attributeName, int type, String description) {
        Objects.requireNonNull(className);
        Objects.requireNonNull(attributeName);
        DataClass dataClass = scheme.getClassByName(className);
        if (dataClass.getAttributeByName(attributeName) != null) {
            return;
        }
        dataClass.addAttribute(new DataAttribute(attributeName, DataAttributeType.values()[type], description));
    }

    public void createObject(long id, String className) {
        DataClass dataClass = scheme.getClassByName(className);
        new DataObject(id, dataClass, index);
        int objectCount = index.getDataObjects().size();
        if (objectCount % 1000 == 0) {
            LOGGER.trace("{} objects have been loaded", objectCount);
        }
    }

    public void setObjectParent(long id, long parentId) {
        DataObject object = getObjectById(id);
        DataObject parentObject = getObjectById(parentId);
        object.setParent(parentObject);
    }

    private DataObject getObjectById(long id) {
        return index.getDataObjectById(id)
                .orElseThrow(() -> new PowerFactoryException("Object '" + id + "' not found"));
    }

    public void setIntAttributeValue(long objectId, String attributeName, int value) {
        DataObject object = getObjectById(objectId);
        object.setIntAttributeValue(attributeName, value);
    }

    public void setLongAttributeValue(long objectId, String attributeName, long value) {
        DataObject object = getObjectById(objectId);
        object.setLongAttributeValue(attributeName, value);
    }

    public void setDoubleAttributeValue(long objectId, String attributeName, double value) {
        DataObject object = getObjectById(objectId);
        object.setDoubleAttributeValue(attributeName, value);
    }

    public void setStringAttributeValue(long objectId, String attributeName, String value) {
        DataObject object = getObjectById(objectId);
        object.setStringAttributeValue(attributeName, value);
    }

    public void setObjectAttributeValue(long objectId, String attributeName, long otherObjectId) {
        DataObject object = getObjectById(objectId);
        object.setObjectAttributeValue(attributeName, otherObjectId);
    }

    public void setIntVectorAttributeValue(long objectId, String attributeName, List value) {
        DataObject object = getObjectById(objectId);
        object.setIntVectorAttributeValue(attributeName, value);
    }

    public void setLongVectorAttributeValue(long objectId, String attributeName, List value) {
        DataObject object = getObjectById(objectId);
        object.setLongVectorAttributeValue(attributeName, value);
    }

    public void setDoubleVectorAttributeValue(long objectId, String attributeName, List value) {
        DataObject object = getObjectById(objectId);
        object.setDoubleVectorAttributeValue(attributeName, value);
    }

    public void setStringVectorAttributeValue(long objectId, String attributeName, List value) {
        DataObject object = getObjectById(objectId);
        object.setStringVectorAttributeValue(attributeName, value);
    }

    public void setObjectVectorAttributeValue(long objectId, String attributeName, List otherObjectsIds) {
        DataObject object = getObjectById(objectId);
        object.setObjectVectorAttributeValue(attributeName, otherObjectsIds);
    }

    public void setDoubleMatrixAttributeValue(long objectId, String attributeName, int rowCount, int columnCount, List value) {
        DataObject object = getObjectById(objectId);
        RealMatrix matrix = new BlockRealMatrix(rowCount, columnCount);
        for (int row = 0; row < rowCount; row++) {
            for (int col = 0; col < columnCount; col++) {
                matrix.setEntry(row, col, value.get(row * columnCount + col));
            }
        }
        object.setDoubleMatrixAttributeValue(attributeName, matrix);
    }
}