/*
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
 *  with the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 *  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.
 */
package org.codehaus.groovy.runtime.dgmimpl.arrays;

import groovy.lang.GString;
import org.codehaus.groovy.reflection.CachedClass;
import org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation;
import org.codehaus.groovy.runtime.typehandling.ShortTypeHandling;

import static org.codehaus.groovy.reflection.ReflectionCache.OBJECT_ARRAY_CLASS;

public class ObjectArrayPutAtMetaMethod extends ArrayPutAtMetaMethod {

    @Override
    public final CachedClass getDeclaringClass() {
        return OBJECT_ARRAY_CLASS;
    }

    @Override
    public Object invoke(final Object object, final Object[] arguments) {
        var array = (Object[]) object;
        int index = normaliseIndex((Integer) arguments[0], array.length);
        array[index] = adjustNewValue(array, arguments[1]);
        return null;
    }

    private static Object adjustNewValue(final Object[] objects, final Object newValue) {
        Class<?> arrayComponentClass = objects.getClass().getComponentType();
        Object adjustedNewVal = newValue;
        if (newValue instanceof Number) {
            if (!arrayComponentClass.equals(newValue.getClass())) {
                adjustedNewVal = DefaultTypeTransformation.castToType(newValue, arrayComponentClass);
            }
        } else if (Character.class.isAssignableFrom(arrayComponentClass)) {
            adjustedNewVal = ShortTypeHandling.castToChar(newValue);
        } else if (String.class.equals(arrayComponentClass) && newValue instanceof GString) {
            adjustedNewVal = DefaultTypeTransformation.castToType(newValue, arrayComponentClass);
        } else if (Number.class.isAssignableFrom(arrayComponentClass)) {
            if (newValue instanceof Character || newValue instanceof String || newValue instanceof GString) {
                Character ch = ShortTypeHandling.castToChar(newValue);
                adjustedNewVal = DefaultTypeTransformation.castToType(ch, arrayComponentClass);
            }
        } else if (arrayComponentClass.isArray()) {
            adjustedNewVal = DefaultTypeTransformation.castToType(newValue, arrayComponentClass);
        }
        return adjustedNewVal;
    }
}
