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yesterday 1a1c8e71fcd14858f595029f089b2d4a00202b32

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#region Copyright notice and license
 
// Copyright 2019 The gRPC Authors
//
// 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.
 
#endregion
 
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Http;
using System.Threading;
using System.Threading.Tasks;
 
namespace HotelPms.Client.Blazor.Util
{
    /// <summary>
    /// A delegating handler that will add a subdirectory to the URI of gRPC requests.
    /// </summary>
    public class GrpcSubDirHandler : DelegatingHandler
    {
        private readonly string _subdirectory;
        private readonly IGlobalLoadingSpinner _loadingSpinnerService;
 
        public GrpcSubDirHandler(HttpMessageHandler innerHandler, IGlobalLoadingSpinner loadingSpinnerService, string subdirectory) : base(innerHandler)
        {
            _subdirectory = subdirectory;
            _loadingSpinnerService = loadingSpinnerService;
        }
 
        protected async override Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
        {
            //发送请求之前显示加载指示器
            //EnvironmentSetting.Debug($"ShowAsync begin:{DateTime.Now.ToString("HH:mm:ss fff")}");
            //await _loadingSpinnerService.ShowAsync();   //0.5秒
 
            EnvironmentSetting.Debug($"SendAsync begin:{DateTime.Now.ToString("HH:mm:ss fff")}");
            //发送请求
            if (request.RequestUri != null && _subdirectory.Length > 0)
            {
                var url = $"{request.RequestUri.Scheme}://{request.RequestUri.Host}{_subdirectory}{request.RequestUri.AbsolutePath}";
                EnvironmentSetting.Debug($"SendAsync Url⇒{url}");
                request.RequestUri = new Uri(url, UriKind.Absolute);
            }
            else
            {
                EnvironmentSetting.Debug($"SendAsync Url⇒{request.RequestUri.AbsolutePath}");
            }
            var response = await base.SendAsync(request, cancellationToken);
 
            EnvironmentSetting.Debug($"SendAsync End:{DateTime.Now.ToString("HH:mm:ss fff")}");
            //收到结果之后隐藏加载指示器
            //await _loadingSpinnerService.HideAsync();
            //EnvironmentSetting.Debug($"HideAsync End:{DateTime.Now.ToString("HH:mm:ss fff")}");
            return response;
        }
    }
}