/*
 *  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
 *
 *    https://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.grails.databinding.converters

import java.time.LocalDateTime

import groovy.transform.CompileStatic

import grails.databinding.converters.ValueConverter

/**
 * This class is a {@link ValueConverter} for {@link LocalDateTime} target type.
 *
 * @author Emma Richardson
 * @since 6.2.0
 */
@CompileStatic
class LocalDateTimeConverter implements ValueConverter {

    @Override
    boolean canConvert(Object value) {
        return value instanceof String || value instanceof LocalDateTime
    }

    @Override
    Object convert(Object value) {
        if (value instanceof LocalDateTime) {
            return value
        } else if (value instanceof CharSequence) {
            String dateStr = value.toString()
            if (!dateStr) {
                return null
            } else {
                LocalDateTime.parse((String) value)
            }
        }
    }

    @Override
    Class<?> getTargetType() {
        return LocalDateTime
    }
}
