using System;
using System.Collections.Generic;
using System.Net.Http;
using Masuit.Tools.Logging;
using Masuit.Tools.Models;
using Masuit.Tools.Net;
using Microsoft.Extensions.Configuration;
using Newtonsoft.Json;

namespace Masuit.Tools.Core.Net
{
    /// <summary>
    /// Web操作扩展
    /// </summary>
    public static class WebExtension
    {
        #region 获取线程内唯一的EF上下文对象

        /// <summary>
        /// 获取线程内唯一的EF上下文对象
        /// </summary>
        /// <typeparam name="T">EF上下文容器对象</typeparam>
        /// <returns>EF上下文容器对象</returns>
        public static T GetDbContext<T>() where T : new()
        {
            T db;
            if (CallContext<T>.GetData("db") == null)
            {
                db = new T();
                CallContext<T>.SetData("db", db);
            }
            db = CallContext<T>.GetData("db");
            return db;
        }

        #endregion

        #region 获取客户端IP地址信息

        private static IConfigurationRoot config = new ConfigurationBuilder().AddJsonFile("appsettings.json", true).Build();
        /// <summary>
        /// 根据IP地址获取详细地理信息
        /// </summary>
        /// <param name="ip"></param>
        /// <returns></returns>
        public static Tuple<string, List<string>> GetIPAddressInfo(this string ip)
        {
            ip.MatchInetAddress(out var isIpAddress);
            if (isIpAddress)
            {
                string ak = config["AppSettings:BaiduAK"];
                if (string.IsNullOrEmpty(ak))
                {
                    throw new Exception("未配置BaiduAK，请先在您的应用程序appsettings.json中的AppSettings节点下添加BaiduAK配置节(注意大小写)");
                }
                using (HttpClient client = new HttpClient() { BaseAddress = new Uri("http://api.map.baidu.com") })
                {
                    try
                    {
                        string ipJson = client.GetStringAsync($"/location/ip?ak={ak}&ip={ip}&coor=bd09ll").Result;
                        var ipAddress = JsonConvert.DeserializeObject<BaiduIP>(ipJson);
                        if (ipAddress.Status == 0)
                        {
                            LatiLongitude point = ipAddress.AddressInfo.LatiLongitude;
                            string result = client.GetStringAsync($"/geocoder/v2/?location={point.Y},{point.X}&output=json&pois=1&radius=1000&latest_admin=1&coordtype=bd09ll&ak={ak}").Result;
                            PhysicsAddress address = JsonConvert.DeserializeObject<PhysicsAddress>(result);
                            if (address.Status == 0)
                            {
                                string detail = $"{address.AddressResult.FormattedAddress} {address.AddressResult.AddressComponent.Direction}{address.AddressResult.AddressComponent.Distance ?? "0"}米";
                                List<string> pois = new List<string>();
                                address.AddressResult.Pois.ForEach(p => { pois.Add($"{p.AddressDetail}{p.Name} {p.Direction}{p.Distance ?? "0"}米"); });
                                return new Tuple<string, List<string>>(detail, pois);
                            }
                        }
                        else
                        {
                            using (var client2 = new HttpClient { BaseAddress = new Uri("http://ip.taobao.com") })
                            {
                                var result = client2.GetStringAsync($"/service/getIpInfo.php?ip={ip}").Result;
                                TaobaoIP taobaoIp = JsonConvert.DeserializeObject<TaobaoIP>(result);
                                if (taobaoIp.Code == 0)
                                {
                                    return new Tuple<string, List<string>>(taobaoIp.IpData.Country + taobaoIp.IpData.Region + taobaoIp.IpData.City, new List<string>());
                                }
                            }
                        }
                    }
                    catch (Exception e)
                    {
                        LogManager.Error(e);
                    }
                }
                return new Tuple<string, List<string>>("IP地址不正确", new List<string>());
            }
            return new Tuple<string, List<string>>($"{ip}不是一个合法的IP地址", new List<string>());
        }

        /// <summary>
        /// 根据IP地址获取详细地理信息对象
        /// </summary>
        /// <param name="ip"></param>
        /// <returns></returns>
        public static PhysicsAddress GetPhysicsAddressInfo(this string ip)
        {
            ip.MatchInetAddress(out var isIpAddress);
            if (isIpAddress)
            {
                string ak = config["AppSettings:BaiduAK"];
                if (string.IsNullOrEmpty(ak))
                {
                    throw new Exception("未配置BaiduAK，请先在您的应用程序appsettings.json中的AppSettings节点下添加BaiduAK配置节(注意大小写)");
                }
                using (HttpClient client = new HttpClient() { BaseAddress = new Uri("http://api.map.baidu.com") })
                {
                    try
                    {
                        string ipJson = client.GetStringAsync($"/location/ip?ak={ak}&ip={ip}&coor=bd09ll").Result;
                        var ipAddress = JsonConvert.DeserializeObject<BaiduIP>(ipJson);
                        if (ipAddress.Status == 0)
                        {
                            LatiLongitude point = ipAddress.AddressInfo.LatiLongitude;
                            string result = client.GetStringAsync($"/geocoder/v2/?location={point.Y},{point.X}&output=json&pois=1&radius=1000&latest_admin=1&coordtype=bd09ll&ak={ak}").Result;
                            PhysicsAddress address = JsonConvert.DeserializeObject<PhysicsAddress>(result);
                            if (address.Status == 0)
                            {
                                return address;
                            }
                        }
                        else
                        {
                            using (var client2 = new HttpClient { BaseAddress = new Uri("http://ip.taobao.com") })
                            {
                                var result = client2.GetStringAsync($"/service/getIpInfo.php?ip={ip}").Result;
                                TaobaoIP taobaoIp = JsonConvert.DeserializeObject<TaobaoIP>(result);
                                if (taobaoIp.Code == 0)
                                {
                                    return new PhysicsAddress() { Status = 0, AddressResult = new AddressResult() { FormattedAddress = taobaoIp.IpData.Country + taobaoIp.IpData.Region + taobaoIp.IpData.City, AddressComponent = new AddressComponent() { Province = taobaoIp.IpData.Region }, Pois = new List<Pois>() } };
                                }
                            }
                        }
                    }
                    catch (Exception e)
                    {
                        LogManager.Error(e);
                    }
                }
            }
            return null;
        }

        /// <summary>
        /// 根据IP地址获取ISP
        /// </summary>
        /// <param name="ip"></param>
        /// <returns></returns>
        public static string GetISP(this string ip)
        {
            if (ip.MatchInetAddress())
            {
                using (var client = new HttpClient { BaseAddress = new Uri("http://ip.taobao.com") })
                {
                    try
                    {
                        var result = client.GetStringAsync($"/service/getIpInfo.php?ip={ip}").Result;
                        TaobaoIP taobaoIp = JsonConvert.DeserializeObject<TaobaoIP>(result);
                        if (taobaoIp.Code == 0)
                        {
                            return taobaoIp.IpData.Isp;
                        }
                    }
                    catch
                    {
                        // ignored
                    }
                }
                return $"未能找到{ip}的ISP信息";
            }
            return $"{ip}不是一个合法的IP";
        }

        #endregion
    }
}