using Microsoft.Extensions.Configuration;
using Shentun.Utilities;
using System;
using System.Collections.Generic;
using System.IdentityModel.Tokens.Jwt;
using System.Linq;
using System.Net.Http.Headers;
using System.Text;
using System.Text.Json;
using System.Threading.Tasks;

namespace Shentun.Sms.Client
{
    public class SmsClientHelper
    {
        protected static IConfiguration? _appConfig;
        private static string? _baseAddress;
        private static string? _createSmsTaskUrl;
        private static string? _accesToken;
        private static string? _user;
        private static string? _password;
        private static string? _email;
        static SmsClientHelper()
        {
            _appConfig = new ConfigurationBuilder()
           .SetBasePath(DirectoryHelper.GetAppDirectory()) // 设置基础路径为当前目录
           .AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
           .Build();
            _baseAddress = _appConfig.GetSection("Sms")
                .GetSection("BaseAddress").Value;
            _createSmsTaskUrl = _appConfig.GetSection("Sms")
                .GetSection("CreateSmsTaskUrl").Value;
            _user = _appConfig.GetSection("Sms")
               .GetSection("User").Value;
            _password = _appConfig.GetSection("Sms")
               .GetSection("Password").Value;
        }

        public async static Task CreateSmsTask(CreateSmsTaskDto createSmsTaskDto)
        {
            if (createSmsTaskDto == null)
            {
                throw new Exception("createSmsTaskDto参数不能为空");
            }

            if (createSmsTaskDto.MobileTelephone.Length != 11)
            {

                throw new Exception("手机号长度必须为11位");
            }
            if (string.IsNullOrWhiteSpace(createSmsTaskDto.PersonId))
            {
                throw new Exception("人员ID不能为空");

            }
            if (string.IsNullOrWhiteSpace(createSmsTaskDto.PersonName))
            {
                throw new Exception("姓名不能为空");

            }
            if (string.IsNullOrWhiteSpace(createSmsTaskDto.CountryCode))
            {
                throw new Exception("国家编码不能为空");

            }
            if (string.IsNullOrWhiteSpace(createSmsTaskDto.Content))
            {
                throw new Exception("短信内容不能为空");

            }
            if (createSmsTaskDto.SmsAppId == null || createSmsTaskDto.SmsAppId == Guid.Empty)
            {
                var smsAppIdStr = _appConfig.GetSection("Sms")
              .GetSection("SmsAppId").Value;
                if (!Guid.TryParse(smsAppIdStr, out var smsAppId))
                {
                    throw new Exception("解析短信应用ID错误");
                }
                createSmsTaskDto.SmsAppId = smsAppId;
            }

            var reslut = await CallAppServiceAsync<CreateSmsTaskDto, object>(_createSmsTaskUrl, createSmsTaskDto);
        }

        public async static Task CreateVerifySmsTask(CreateSmsTaskDto smsDto)
        {
            var verifySmsTypeIdStr = _appConfig.GetSection("Sms")
                .GetSection("VerifySmsTypeId").Value;
            if (!Guid.TryParse(verifySmsTypeIdStr, out var verifySmsTypeId))
            {
                throw new Exception("解析校验短信类别ID错误");
            }

            smsDto.SmsTypeId = verifySmsTypeId;
            await CreateSmsTask(smsDto);
        }


        public async static Task CreateAppointSmsTask(CreateSmsTaskDto smsDto)
        {
 
            var appointSmsTypeIdStr = _appConfig.GetSection("Sms")
              .GetSection("AppointSmsTypeId").Value;
            if (!Guid.TryParse(appointSmsTypeIdStr, out var appointSmsTypeId))
            {
                throw new Exception("解析预约成功短信类别ID错误");
            }

            var smsAppIdStr = _appConfig.GetSection("Sms")
           .GetSection("SmsAppId").Value;
            if (!Guid.TryParse(smsAppIdStr, out var smsAppId))
            {
                throw new Exception("解析短信应用ID错误");
            }
          

            string appointTemplateId = _appConfig.GetSection("Sms")
              .GetSection("AppointTemplateId").Value;

            smsDto.SmsAppId = smsAppId;
            smsDto.SmsTypeId = appointSmsTypeId;
            smsDto.TemplateId = appointTemplateId;

            var result = await CallAppServiceAsync<CreateSmsTaskDto, object>(_createSmsTaskUrl, smsDto);
        }
        public async static Task<TOut> CallAppServiceAsync<TInput, TOut>(string url, TInput data, string method = "post")
        {
            if (string.IsNullOrWhiteSpace(_baseAddress))
            {
                throw new Exception("_baseAddress不能为空");
            }
            string baseAddress = _baseAddress;
            await CheckLoginAsync();
            using (var httpClientHandler = new HttpClientHandler())
            {
                using (var httpClient = new HttpClient(httpClientHandler))
                {
                    httpClient.BaseAddress = new Uri(baseAddress);

                    httpClient.DefaultRequestHeaders.Accept.Add(
                      new MediaTypeWithQualityHeaderValue("application/json"));//设置accept标头，告诉JSON是可接受的响应类型
                    httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", _accesToken);
                    var jsonOptions = new JsonSerializerOptions
                    {
                        WriteIndented = true, // 设置为true以便于可读性更好的JSON输出
                        PropertyNamingPolicy = JsonNamingPolicy.CamelCase,
                        // 如果你想要对日期进行格式化，可以使用JsonConverter
                        Converters = { new JsonDateTimeConverter("yyyy-MM-dd HH:mm:ss") }
                    };

                    var sendData = System.Text.Json.JsonSerializer.Serialize(data, jsonOptions);
                    using (HttpContent httpContent = new StringContent(sendData))
                    {
                        httpContent.Headers.ContentType = new MediaTypeHeaderValue("application/json");
                        HttpResponseMessage response = null;
                        if (method == "post")
                        {
                            response = await httpClient.PostAsync(url, httpContent);
                        }
                        else
                        {
                            response = await httpClient.GetAsync(url);
                        }

                        string result;
                        if (!response.IsSuccessStatusCode)
                        {
                            result = response.Content.ReadAsStringAsync().Result;
                            throw new Exception("http通信错误:" + response.StatusCode + ",结果:" + result);
                        }
                        result = await response.Content.ReadAsStringAsync();

                        var resultDto = System.Text.Json.JsonSerializer.Deserialize<SmsWebApiOutDto<TOut>>(result, jsonOptions);
                        if (resultDto.Code == -1)
                        {
                            throw new Exception($"调用WebApi失败，返回-1,消息:" + resultDto.Message);
                        }
                        return resultDto.Data;
                    }

                }
            }
        }
        public async static Task<SmsWebApiOutDto<SmsLoginOutDataDto>> LoginAsync()
        {
            if (string.IsNullOrWhiteSpace(_user))
            {
                throw new Exception("SelfUser不能为空");
            }
            if (string.IsNullOrWhiteSpace(_password))
            {
                throw new Exception("SelfPassword不能为空");
            }
            var relult = await LoginAsync(_user, _password);
            return relult;
        }
        public async static Task<SmsWebApiOutDto<SmsLoginOutDataDto>> LoginAsync(string userId, string password)
        {
            if (string.IsNullOrWhiteSpace(userId))
            {
                throw new Exception("用户ID不能为空");
            }
            if (string.IsNullOrWhiteSpace(password))
            {
                throw new Exception("密码不能为空");
            }
            using (var httpClientHandler = new HttpClientHandler())
            {
                using (var httpClient = new HttpClient(httpClientHandler))
                {
                    httpClient.BaseAddress = new Uri(_baseAddress);

                    httpClient.DefaultRequestHeaders.Accept.Add(
                      new MediaTypeWithQualityHeaderValue("application/json"));//设置accept标头，告诉JSON是可接受的响应类型
                    var url = "api/app/CustomerUser/UserLogin";
                    var jsonOptions = new JsonSerializerOptions
                    {
                        WriteIndented = true, // 设置为true以便于可读性更好的JSON输出
                        PropertyNamingPolicy = JsonNamingPolicy.CamelCase,
                        // 如果你想要对日期进行格式化，可以使用JsonConverter
                        Converters = { new JsonDateTimeConverter("yyyy-MM-dd HH:mm:ss") }
                    };
                    var loginUser = new SmsLoginInputDto()
                    {
                        UserName = userId,
                        Password = password
                    };
                    var sendData = System.Text.Json.JsonSerializer.Serialize(loginUser);
                    using (HttpContent httpContent = new StringContent(sendData))
                    {
                        httpContent.Headers.ContentType = new MediaTypeHeaderValue("application/json");
                        HttpResponseMessage response = await httpClient.PostAsync(url, httpContent);
                        string result;
                        if (!response.IsSuccessStatusCode)
                        {
                            result = response.Content.ReadAsStringAsync().Result;
                            throw new Exception("登录短信系统时http通信错误:" + response.StatusCode + ",结果:" + result);
                        }
                        result = await response.Content.ReadAsStringAsync();
                        var restultDto = System.Text.Json.JsonSerializer.Deserialize<SmsWebApiOutDto<SmsLoginOutDataDto>>(result, jsonOptions);
                        if (restultDto == null)
                        {
                            throw new Exception("返回结果是空");
                        }
                        if (restultDto.Code != 1)
                        {
                            throw new Exception($"短信登录失败{restultDto.Message}");
                        }
                        _accesToken = restultDto.Data.access_token;
                        return restultDto;
                    }

                }
            }
        }

        private async static Task CheckLoginAsync()
        {
            if (string.IsNullOrWhiteSpace(_accesToken))
            {
                await LoginAsync();
            }
            else
            {
                var handler = new JwtSecurityTokenHandler();
                var payload = handler.ReadJwtToken(_accesToken).Payload;
                var claims = payload.Claims;
                var exp = claims.First(claim => claim.Type == "exp").Value;
                if (exp == null)
                {
                    await LoginAsync();
                }
                else
                {
                    if (long.TryParse(exp, out var expires))
                    {
                        var expireTime = DateTimeOffset.FromUnixTimeSeconds(expires).LocalDateTime;
                        if (expireTime <= DateTime.Now)
                        {
                            await LoginAsync();
                        }
                    }
                    else
                    {
                        await LoginAsync();
                    }

                }

            }
        }
    }
}