/*
 *  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.text.SimpleDateFormat

import groovy.transform.CompileStatic

import grails.databinding.converters.FormattedValueConverter

/**
 * @author Jeff Brown
 * @since 2.3
 */
@CompileStatic
class FormattedDateValueConverter implements FormattedValueConverter {

    def convert(value, String format) {
        if (value instanceof Date) {
            return value
        }
        else if (value instanceof CharSequence) {
            String dateStr = value.toString()
            if (!dateStr) {
                return null
            }
            else {
                def fmt = new SimpleDateFormat(format)
                fmt.lenient = false
                fmt.parse((String) value)
            }
        }
    }

    Class<?> getTargetType() {
        Date
    }

}
