﻿/*
 * 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.
 */
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Apache.NMS;
using Apache.NMS.Util;
using Amqp.Types;
using Amqp.Framing;

namespace Apache.NMS.AMQP.Util.Types.Map.AMQP
{
    /// <summary>
    /// A Utility class used to bridge the PrimativeMapBase from Apache.NMS.Util to the AmqpNetLite DescribedMap class.
    /// This enables the Apache.NMS.Util Methods/class for IPrimativeMap to interact directly with AmqpNetLite message properties.
    /// </summary>
    class AMQPPrimitiveMap : PrimitiveMapBase
    {

        private readonly object syncLock = new object(); 
        private readonly DescribedMap properties;

        internal AMQPPrimitiveMap(DescribedMap map)
        {
            properties = map;
        }

        public override int Count
        {
            get
            {
                return properties.Map.Count;
            }
        }

        public override ICollection Keys
        {
            get
            {
                lock (SyncRoot)
                {
                    return new ArrayList(properties.Map.Keys);
                }
            }
        }

        public override ICollection Values
        {
            get
            {
                lock (SyncRoot)
                {
                    return new ArrayList(properties.Map.Values);
                }
            }
        }

        public override void Remove(object key)
        {
            properties.Map.Remove(key);
        }

        public override void Clear()
        {
            properties.Map.Clear();
        }

        public override bool Contains(object key)
        {
            return properties.Map.ContainsKey(key);
        }

        internal override object SyncRoot
        {
            get
            {
                return syncLock;
            }
        }

        public override object GetObject(string key) => properties[key];

        public override void SetObject(string key, object value)
        {
            object objval = value;

            if (objval is IDictionary)
            {
                objval = ConversionSupport.MapToAmqp(value as IDictionary);
            }
            else if (objval is IList || objval is IList<object>)
            {
                objval = ConversionSupport.ListToAmqp(value as IList);
            }
            this.properties[key] = objval;
        }
    }
}