/* Copyright 2015-present MongoDB Inc.
*
* Licensed 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.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Threading;
using System.Threading.Tasks;
using MongoDB.Bson.Serialization;
using MongoDB.Bson.Serialization.Serializers;

namespace MongoDB.Driver.Linq.Expressions.ResultOperators
{
    internal sealed class AnyResultOperator : ResultOperator, IResultTransformer
    {
        private static readonly BooleanSerializer __serializer = new BooleanSerializer();

        public override string Name
        {
            get { return "Any"; }
        }

        public override IBsonSerializer Serializer
        {
            get { return __serializer; }
        }

        public override Type Type
        {
            get { return typeof(bool); }
        }

        public LambdaExpression CreateAggregator(Type sourceType)
        {
            return ResultTransformerHelper.CreateAggregator("Any", sourceType);
        }

        public LambdaExpression CreateAsyncAggregator(Type sourceType)
        {
            return ResultTransformerHelper.CreateAsyncAggregator("AnyAsync", sourceType);
        }
    }
}
