/*
 * 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.tuscany.nosqldatastore.couchdb;

import org.apache.tuscany.nosqldatastore.Group;
import org.jcouchdb.document.DesignDocument;
import org.jcouchdb.document.DocumentHelper;
import org.jcouchdb.exception.UpdateConflictException;

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

public class CouchDBGroup implements Group {

    private org.jcouchdb.db.Database database;

    private String groupId;

    CouchDBGroup(org.jcouchdb.db.Database database, String groupId){
        this.database = database;
        this.groupId = groupId;
        DesignDocument doc = new DesignDocument(groupId);
        Map<String, String> lists = new HashMap<String, String>();
        doc.setListFunctions(lists);
        try{
            database.createOrUpdateDocument(doc);
        }catch(UpdateConflictException e){
            System.out.println("Connect to the doc "+groupId);   
        }
    }

    public void addEntry(String key, Object value) {
        DesignDocument doc = database.getDesignDocument(groupId);
        Map<String, String> lists  = doc.getListFunctions();
        lists.put(key, (String)value);
        doc.setListFunctions(lists);
        database.updateDocument(doc);
    }

    public void updateEntry(String key, Object value) {
        addEntry(key, value);
    }

    public void deleteEntry(String key) {
        DesignDocument doc = database.getDesignDocument(groupId);
        Map<String, String> lists  = doc.getListFunctions();
        lists.remove(key);
        doc.setListFunctions(lists);
        database.updateDocument(doc);
    }

    public Object getValue(String key) {
        DesignDocument doc = database.getDesignDocument(groupId);
        Map<String, String> lists  = doc.getListFunctions();
        return lists.get(key);
    }
}