using Aspose.Words;
using NPOI.HSSF.Record;
using OASystem.Domain.Attributes;
using OASystem.Domain.Entities.Customer;
using OASystem.Infrastructure.Repositories.CRM;
using System.ComponentModel.DataAnnotations;
using System.Diagnostics;
using XAct;
using static Google.Protobuf.Reflection.SourceCodeInfo.Types;

namespace OASystem.API.Middlewares
{
    /// <summary>
    /// 指定API操作记录信息
    /// </summary>
    public class RecordAPIOperationMiddleware
    {
        private readonly RequestDelegate _next;
        private readonly HttpClient _httpClient;
        private readonly IConfiguration _config;
        private readonly SqlSugarClient _sqlSugar;

        public RecordAPIOperationMiddleware(RequestDelegate next, IConfiguration config, HttpClient httpClient, SqlSugarClient sqlSugar)
        {
            _next = next;
            _httpClient = httpClient;
            _config = config;
            _sqlSugar = sqlSugar;
        }

        public async Task InvokeAsync(HttpContext context)
        {
            // 启用请求体流的缓冲，允许多次读取
            context.Request.EnableBuffering();

            // 读取请求体内容
            var requestBodyText = await ReadRequestBody(context.Request);

            // 检查控制器方法是否使用了自定义属性
            var endpoint = context.GetEndpoint();
            var apiLogAttribute = endpoint?.Metadata?.GetMetadata<ApiLogAttribute>();
            if (apiLogAttribute != null)
            {
                var startTime = DateTime.UtcNow;

                // 保存原始响应体流
                var originalResponseBody = context.Response.Body;

                // 创建一个新的内存流来捕获响应体
                using var responseMemoryStream = new MemoryStream();
                context.Response.Body = responseMemoryStream;

                // 调用下一个中间件
                await _next(context);

                // 读取响应体内容
                var responseBodyText = await new StreamReader(responseMemoryStream).ReadToEndAsync();

                // 重置响应体流的位置
                responseMemoryStream.Position = 0;
                // 将响应体内容写回原始响应体流
                await responseMemoryStream.CopyToAsync(originalResponseBody);
                // 记录请求结束时间
                var endTime = DateTime.UtcNow;
                // 计算耗时
                var duration = (long)(endTime - startTime).TotalMilliseconds;

                int portType = 1;

                var logInfo = new Crm_TableOperationRecord() {
                    TableName = apiLogAttribute.TableName,
                    PortType = portType,
                    OperationItem = apiLogAttribute.OperationEnum,
                    DataId = apiLogAttribute.DataId,
                    RequestUrl = context.Request.Path,
                    RequestParam = requestBodyText,
                    ReturnResult = responseBodyText,
                    Elapsed = duration,
                    Status = context.Response.StatusCode.ToString(),

                };

                // 存储到数据库
                await  _sqlSugar.Insertable(logInfo).ExecuteCommandAsync();
            }
            else
            {
                // 调用下一个中间件
                await _next(context);
            }
        }

        private async Task<string> ReadRequestBody(HttpRequest request)
        {
            request.EnableBuffering();

            // 读取请求体内容
            using var reader = new StreamReader(request.Body, Encoding.UTF8, true, 1024, true);
            var requestBodyText = await reader.ReadToEndAsync();

            // 重置请求体流的位置
            request.Body.Position = 0;

            return requestBodyText;
        }


        private async Task<string> GetExternalIp()
        {
            var response = await _httpClient.GetAsync("https://ifconfig.me");
            response.EnsureSuccessStatusCode();
            return await response.Content.ReadAsStringAsync();
        }

        private async Task<string> GetIpLocation(string ip)
        {
            var response = await _httpClient.GetAsync($"https://ipinfo.io/{ip}/json");
            response.EnsureSuccessStatusCode();
            var json = await response.Content.ReadAsStringAsync();
            var ipInfo = Newtonsoft.Json.JsonConvert.DeserializeObject<dynamic>(json);
            return $"{ipInfo.country}, {ipInfo.city}";
        }

       
    }
}