/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2013-2017 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://oss.oracle.com/licenses/CDDL+GPL-1.1
 * or LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
 * "Portions Copyright [year] [name of copyright owner]"
 *
 * Contributor(s):
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */

package org.glassfish.json;

import org.glassfish.json.api.BufferPool;

import javax.json.JsonArrayBuilder;
import javax.json.JsonObjectBuilder;
import javax.json.JsonValue;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.util.Collection;
import java.util.Map;

/**
 * Util for transforming a Map to a Json objects.
 *
 * @author asotobu
 */
public final class MapUtil {

    private MapUtil() {
        super();
    }

    static JsonValue handle(Object value, BufferPool bufferPool) {

        if (value == null) {
            return JsonValue.NULL;
        }

        if (value instanceof BigDecimal) {
            return JsonNumberImpl.getJsonNumber((BigDecimal) value);
        } else {
            if (value instanceof BigInteger) {
                return JsonNumberImpl.getJsonNumber((BigInteger) value);
            } else {
                if ( value instanceof Boolean) {
                    Boolean b = (Boolean) value;
                    return b ? JsonValue.TRUE : JsonValue.FALSE;
                } else {
                    if (value instanceof Double) {
                        return JsonNumberImpl.getJsonNumber((Double) value);
                    } else {
                        if (value instanceof Integer) {
                            return JsonNumberImpl.getJsonNumber((Integer) value);
                        } else {
                            if (value instanceof Long) {
                                return JsonNumberImpl.getJsonNumber((Long) value);
                            } else {
                                if (value instanceof String) {
                                    return new JsonStringImpl((String) value);
                                } else {
                                    if (value instanceof Collection) {
                                        @SuppressWarnings("unchecked")
                                        Collection<?> collection = (Collection<?>) value;
                                        JsonArrayBuilder jsonArrayBuilder = new JsonArrayBuilderImpl(collection, bufferPool);
                                        return jsonArrayBuilder.build();
                                    } else {
                                        if (value instanceof Map) {
                                            @SuppressWarnings("unchecked")
                                            JsonObjectBuilder object = new JsonObjectBuilderImpl((Map<String, Object>) value, bufferPool);
                                            return object.build();
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }

        throw new IllegalArgumentException(String.format("Type %s is not supported.", value.getClass()));
    }

}
