﻿/*
 * 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.
 */

namespace DotPulsar.Internal
{
    using DotPulsar.Abstractions;
    using System;
    using System.Threading;
    using System.Threading.Tasks;

    public sealed class FuncStateChangedHandler<TStateChanged> : IHandleStateChanged<TStateChanged>
    {
        private readonly Func<TStateChanged, CancellationToken, ValueTask> _stateChangedHandler;

        public FuncStateChangedHandler(Func<TStateChanged, CancellationToken, ValueTask> stateChangedHandler, CancellationToken cancellationToken)
        {
            _stateChangedHandler = stateChangedHandler;
            CancellationToken = cancellationToken;
        }

        public CancellationToken CancellationToken { get; }

        public async ValueTask OnStateChanged(TStateChanged stateChanged, CancellationToken cancellationToken)
            => await _stateChangedHandler(stateChanged, cancellationToken).ConfigureAwait(false);
    }
}