whitesharx/httx

// Copyright (c) 2020 Sergey Ivonchik
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
// OR OTHER DEALINGS IN THE SOFTWARE.

using System;
using System.Linq;
using Httx.Requests.Extensions;

namespace Httx.Requests.Awaiters {
  public class CompleteAwaiter<TResult> : IAwaiter<TResult> {
    private readonly IRequest inputRequest;

    public CompleteAwaiter(IRequest request) => inputRequest = request;
    public void OnCompleted(Action continuation) => continuation?.Invoke();
    public bool IsCompleted => true;

    public TResult GetResult() {
      var headers = inputRequest.ResolveHeaders()?.ToList();
      return headers.FetchHeader<TResult>(InternalHeaders.CompletedResult);
    }
  }
}