using Microsoft.Extensions.Logging;
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Http.Headers;
using System.Text;
using System.Threading.Tasks;
using WIDESEA_Core.LogHelper;

namespace WIDESEA_Core.Helper
{
    public class HttpHelper
    {
        public static async Task<string> GetAsync(string serviceAddress, Dictionary<string, string>? headers = null)
        {
            string result = string.Empty;
            DateTime beginDate = DateTime.Now;
            try
            {
                using HttpClient httpClient = new HttpClient();
                httpClient.Timeout = new TimeSpan(0, 0, 60);
                
                if (headers != null)
                {
                    foreach (var header in headers)
                        httpClient.DefaultRequestHeaders.Add(header.Key, header.Value);
                }

                result = await httpClient.GetAsync(serviceAddress).Result.Content.ReadAsStringAsync();
                return result;
            }
            catch (Exception e)
            {
                throw new Exception(e.Message);
            }
            finally
            {
                Logger.Add(serviceAddress, "", result, beginDate);
            }
        }

        public static async Task<string?> PostAsync(string serviceAddress, string requestJson = "", string contentType = "application/json", Dictionary<string, string>? headers = null)
        {
            string result = string.Empty;
            DateTime beginDate = DateTime.Now;
            try
            {
                using (HttpContent httpContent = new StringContent(requestJson))
                {
                    httpContent.Headers.ContentType = new MediaTypeHeaderValue("application/json");
                    using HttpClient httpClient = new HttpClient();
                    httpClient.Timeout = new TimeSpan(0, 0, 60);

                    if (headers != null)
                    {
                        foreach (var header in headers)
                            httpClient.DefaultRequestHeaders.Add(header.Key, header.Value);
                    }

                    result = await httpClient.PostAsync(serviceAddress, httpContent).Result.Content.ReadAsStringAsync();
                }
                return result;
            }
            catch (Exception e)
            {
                throw new Exception(e.Message);
            }
            finally
            {
                Logger.Add(serviceAddress, requestJson, result, beginDate);
            }
        }

        public static string Get(string serviceAddress, string contentType = "application/json", Dictionary<string, string>? headers = null)
        {
            string result = string.Empty;
            DateTime beginDate = DateTime.Now;
            try
            {
                using HttpClient httpClient = new HttpClient();
                httpClient.Timeout = new TimeSpan(0, 0, 60);

                if (headers != null)
                {
                    foreach (var header in headers)
                        httpClient.DefaultRequestHeaders.Add(header.Key, header.Value);
                }

                result = httpClient.GetStringAsync(serviceAddress).Result;
                return result;
            }
            catch (Exception e)
            {
                throw new Exception(e.Message);
            }
            finally
            {
                Logger.Add(serviceAddress, "", result, beginDate);
            }
        }

        public static string Post(string serviceAddress, string requestJson = "", string contentType = "application/json", Dictionary<string, string>? headers = null)
        {
            string result = string.Empty;
            DateTime beginDate = DateTime.Now;
            try
            {
                using (HttpContent httpContent = new StringContent(requestJson))
                {
                    httpContent.Headers.ContentType = new MediaTypeHeaderValue("application/json");
                    using HttpClient httpClient = new HttpClient();
                    httpClient.Timeout = new TimeSpan(0, 0, 60);

                    if (headers != null)
                    {
                        foreach (var header in headers)
                            httpClient.DefaultRequestHeaders.Add(header.Key, header.Value);
                    }

                    result = httpClient.PostAsync(serviceAddress, httpContent).Result.Content.ReadAsStringAsync().Result;
                }
                return result;
            }
            catch (Exception e)
            {
                throw new Exception(e.Message);
            }
            finally
            {
                Logger.Add(serviceAddress, requestJson, result, beginDate);
            }
        }

        /// <summary>
        /// POST请求（异步版本）- 解决405问题
        /// </summary>
        /// <param name="serviceAddress">服务地址</param>
        /// <param name="requestJson">请求JSON</param>
        /// <param name="contentType">内容类型</param>
        /// <param name="headers">请求头</param>
        /// <returns>响应结果</returns>
        /// <summary>
        /// POST请求（同步版本，兼容原有代码）
        /// </summary>
        // 如果上面的方法还有问题，使用这个简化版本
        public static string PostSync(string serviceAddress, string requestJson = "", string contentType = "application/json", Dictionary<string, string>? headers = null)
        {
            string result = string.Empty;
            DateTime beginDate = DateTime.Now;
            try
            {
                using (var httpContent = new StringContent(requestJson, Encoding.UTF8, contentType))
                using (var httpClient = new HttpClient())
                {
                    httpClient.Timeout = TimeSpan.FromSeconds(600);

                    // 设置默认请求头 - 使用简单的 User-Agent
                    httpClient.DefaultRequestHeaders.Add("Accept", "*/*");
                    httpClient.DefaultRequestHeaders.Add("Accept-Encoding", "gzip, deflate");
                    httpClient.DefaultRequestHeaders.Add("Connection", "keep-alive");
                    httpClient.DefaultRequestHeaders.Add("User-Agent", "WMS-Client/1.0"); // 简单的 User-Agent

                    if (headers != null)
                    {
                        foreach (var header in headers)
                            httpClient.DefaultRequestHeaders.Add(header.Key, header.Value);
                    }

                    var response = httpClient.PostAsync(serviceAddress, httpContent).Result;

                    Console.WriteLine($"HTTP状态码: {(int)response.StatusCode} - {response.StatusCode}");

                    if (!response.IsSuccessStatusCode)
                    {
                        throw new HttpRequestException($"HTTP请求失败: {(int)response.StatusCode} - {response.StatusCode}");
                    }

                    result = response.Content.ReadAsStringAsync().Result;
                    return result;
                }
            }
            catch (Exception e)
            {
                throw new Exception($"POST请求失败: {e.Message}");
            }
            finally
            {
                Logger.Add(serviceAddress, requestJson, result, beginDate);
            }
        }


        /// <summary>
        /// GET请求
        /// </summary>
        /// <param name="serviceAddress">服务地址</param>
        /// <param name="parameters">请求参数</param>
        /// <param name="headers">请求头</param>
        /// <returns>响应结果</returns>
        public static string GetRequest(string serviceAddress, Dictionary<string, string>? parameters = null, Dictionary<string, string>? headers = null)
        {
            string result = string.Empty;
            DateTime beginDate = DateTime.Now;
            try
            {
                using (var httpClient = new HttpClient())
                {
                    httpClient.Timeout = TimeSpan.FromSeconds(60);

                    // 设置请求头
                    httpClient.DefaultRequestHeaders.Add("Accept", "*/*");
                    httpClient.DefaultRequestHeaders.Add("Accept-Encoding", "gzip, deflate");
                    httpClient.DefaultRequestHeaders.Add("Connection", "keep-alive");
                    httpClient.DefaultRequestHeaders.Add("User-Agent", "WMS-Client/1.0");

                    if (headers != null)
                    {
                        foreach (var header in headers)
                            httpClient.DefaultRequestHeaders.Add(header.Key, header.Value);
                    }

                    // 构建带参数的 URL
                    string url = serviceAddress;
                    if (parameters != null && parameters.Count > 0)
                    {
                        var queryParams = string.Join("&", parameters.Select(p => $"{Uri.EscapeDataString(p.Key)}={Uri.EscapeDataString(p.Value)}"));
                        url += (url.Contains("?") ? "&" : "?") + queryParams;
                    }

                    var response = httpClient.GetAsync(url).Result;

                    Console.WriteLine($"GET 状态码: {(int)response.StatusCode} - {response.StatusCode}");

                    if (!response.IsSuccessStatusCode)
                    {
                        throw new HttpRequestException($"GET 请求失败: {(int)response.StatusCode} - {response.StatusCode}");
                    }

                    result = response.Content.ReadAsStringAsync().Result;
                    return result;
                }
            }
            catch (Exception e)
            {
                throw new Exception($"GET 请求失败: {e.Message}");
            }
            finally
            {
                Logger.Add(serviceAddress, parameters != null ? JsonConvert.SerializeObject(parameters) : "No Parameters", result, beginDate);
            }
        }
    }
}