using Microsoft.AspNetCore.Mvc.Controllers;
using Microsoft.AspNetCore.Mvc.Filters;
using Newtonsoft.Json;
using System.Text;

namespace LearningOfficer.OA.Mobile.Api.Filters
{
    public class GlobalOperationLogFilter : IAsyncActionFilter
    {
        private readonly ILogger<GlobalOperationLogFilter> _logger;  

        public GlobalOperationLogFilter(ILogger<GlobalOperationLogFilter> logger )
        {
            _logger = logger; 
        }
        public async Task OnActionExecutionAsync(ActionExecutingContext context, ActionExecutionDelegate next)
        {
            //// 获取请求信息 
            var paramss = context.ActionDescriptor.Parameters;
            var ActionName = ((ControllerActionDescriptor)context.ActionDescriptor)?.ActionName;
            var Method = context.HttpContext.Request.Method;
            var queryString = context.HttpContext.Request.QueryString;
            var RequestUrl = context.HttpContext.Request.Host + context.HttpContext.Request.Path;
            string token = context.HttpContext.Request.Headers["Authorization"].FirstOrDefault();
            string body = "";
            var request = context.HttpContext.Request;
            var stream = request.Body;
            if (request.ContentLength != null && request.ContentLength > 0)
            {
                request.EnableBuffering();
                request.Body.Position = 0;//将读取指针迻到开始位置
                using (var reader = new StreamReader(stream, Encoding.UTF8, true, 1024, true))
                {
                    body = await reader.ReadToEndAsync();
                }
            }

            _logger.LogInformation(context.HttpContext.TraceIdentifier + ": {RequestParams}", body);
            await next();
         }

        private async Task<string> GetRequestBody(HttpRequest request)
        {
            request.EnableBuffering();
            var body = request.Body;
            var buffer = new byte[Convert.ToInt32(request.ContentLength)];
            await request.Body.ReadAsync(buffer, 0, buffer.Length);
            request.Body.Position = 0; // 重置流位置
            return Encoding.UTF8.GetString(buffer);
        }

        private async Task<string> GetResponseBody(HttpResponse response)
        {
            response.Body.Seek(0, SeekOrigin.Begin);
            var body = await new StreamReader(response.Body).ReadToEndAsync();
            response.Body.Seek(0, SeekOrigin.Begin);
            return body;
        }
    }
}