/* ====================================================================
   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.apache.poi.common.usermodel;

import java.util.HashMap;
import java.util.Map;

import org.apache.poi.util.Internal;

/**
 * @since POI 3.15 beta 3
 */
public enum HyperlinkType {
    /** Not a hyperlink */
    @Internal
    NONE(-1),
    
    /**
     * Link to an existing file or web page
     */
    URL(1),

    /**
     * Link to a place in this document
     */
    DOCUMENT(2),

    /**
     * Link to an E-mail address
     */
    EMAIL(3),

    /**
     * Link to a file
     */
    FILE(4);
    
    
    /** @deprecated POI 3.15 beta 3 */
    @Internal(since="3.15 beta 3")
    @Deprecated
    private final int code;
    
    /**
     * The codes don't have any real meaning.
     * There bytes that are read in and written out from HSSF, HSLF, XSSF, and XSLF are different
     * that the codes here.
     * These codes only exist to assist in transitioning from using ints to enums.
     *
     * @param code
     * @deprecated POI 3.15 beta 3
     */
    @Internal(since="3.15 beta 3")
    @Deprecated
    private HyperlinkType(int code) {
        this.code = code;
    }
    
    private static final Map<Integer, HyperlinkType> map = new HashMap<Integer, HyperlinkType>();
    static {
        for (HyperlinkType type : values()) {
            map.put(type.getCode(), type);
        }
    }
    
    /**
     * @deprecated POI 3.15 beta 3
     *
     * @return the old integer code for a HyperlinkType enum
     */
    @Internal(since="3.15 beta 3")
    @Deprecated
    public int getCode() {
        return code;
    }
    
    /**
     * @deprecated POI 3.15 beta 3
     *
     * @param code the old integer code
     * @return the corresponding HyperlinkEnum, if it exists
     * @throws IllegalArgumentException if {@code code} is not a valid HyperlinkType.
     */
    @Internal(since="3.15 beta 3")
    @Deprecated
    public static HyperlinkType forInt(int code) {
        HyperlinkType type = map.get(code);
        if (type == null) {
            throw new IllegalArgumentException("Invalid type: " + code);
        }
        return type;
    }
}