OA2023/OASystem/OASystem.Api/OAMethodLib/JuHeAPI/JuHeApiService.cs

using Dm;
using Newtonsoft.Json;
using OASystem.Domain;
using OASystem.Domain.Dtos.SmallFun;
using OASystem.Domain.ViewModels.JuHeExchangeRate;
using OASystem.Domain.ViewModels.SmallFun;
using System.DirectoryServices.Protocols;
using System.Net.Http;
using System.Net.Http.Json;
using System.Text.Json;
using Ubiety.Dns.Core;

namespace OASystem.API.OAMethodLib.JuHeAPI
{
    /// <summary>
    /// 聚合Api 服务
    /// </summary>
    public class JuHeApiService: IJuHeApiService
    {
        private readonly HttpClient _httpClient;
        private readonly string _appKey = "0f5429e9fbb8637c0ff3f14bbb42c732"; //配置您申请的appkey

        /// <summary>
        /// 初始化
        /// </summary>
        /// <param name="clientFactory"></param>
        public JuHeApiService(IHttpClientFactory clientFactory)
        {
            _httpClient = clientFactory.CreateClient("PublicJuHeApi"); ;
        }

        /// <summary>
        /// 获取汇率
        /// </summary>
        /// <returns></returns>
        public async Task<JuHeAPIResult> GetExchangeRateAsync()
        {
            var result = new JuHeAPIResult() { Resultcode = "-2",Reason="未知错误" };

            string rateDataString = await RedisRepository.RedisFactory
                                                         .CreateRedisRepository()
                                                         .StringGetAsync<string>("JuHeApiExchangeRate");//string 取

            if (string.IsNullOrEmpty(rateDataString))
            {
                #region 请求接口并存入缓存
                string url = string.Format("/finance/exchange/rmbquot");

                try
                {
                    var exchangeReq = await _httpClient.PostAsync(url,
                                        new FormUrlEncodedContent(new List<KeyValuePair<string, string>>()
                                        {
                                        new KeyValuePair<string, string>("key",_appKey),//你申请的key 
                                        new KeyValuePair<string, string>("type","0"),   //两种格式(0或者1,默认为0)
                                        new KeyValuePair<string, string>("bank","3")    //(0:工商银行,1:招商银行,2:建设银行,3:中国银行,
                                                                                        //4:交通银行,5:农业银行,默认为:0)
                                        }));
                    if (exchangeReq.IsSuccessStatusCode)
                    {
                        var stringResponse = await exchangeReq.Content.ReadAsStringAsync();

                        result = System.Text.Json.JsonSerializer.Deserialize<JuHeAPIResult>(stringResponse,
                        new JsonSerializerOptions() { PropertyNamingPolicy = JsonNamingPolicy.CamelCase });

                        if (result.Resultcode == "200")
                        {
                            List<ExchangeRateModel> rateList = new List<ExchangeRateModel>();

                            #region 处理数据类型
                            JArray jar = JArray.Parse(result.Result.ToJson());
                            for (int i = 0; i < jar.Count; i++)
                            {
                                JObject j = JObject.Parse(jar[i].ToString());
                                for (int x = 1; x < j.Count + 1; x++)
                                {
                                    string rateName = "data" + x;
                                    string rateDataStr = j[rateName].ToString();
                                    if (!string.IsNullOrEmpty(rateDataStr))
                                    {
                                        ExchangeRateModel exchangeRate = JsonConvert.DeserializeObject<ExchangeRateModel>(rateDataStr);
                                        rateList.Add(exchangeRate);
                                    }
                                }
                            }
                            #endregion


                            TimeSpan ts = DateTime.Now.AddMinutes(120) - DateTime.Now; //设置redis 过期时间 120分钟
                            await RedisRepository
                                .RedisFactory
                                .CreateRedisRepository()
                                .StringSetAsync<string>("JuHeApiExchangeRate", rateList.ToJson(), ts);//string 存

                            result.Result = rateList;
                        }
                        else
                        {
                            result.Reason = string.Format("聚合APIError[Error_Code:{0} Resultcode:{1} Msg:{2}]",
                                result.Error_code, result.Resultcode, result.Result);
                        }

                    }
                    else
                    {
                        result.Reason = "汇率接口请求失败!";
                    }
                }
                catch (Exception ex)
                {
                    result.Reason = ex.Message;
                }
                #endregion

            }
            else
            {
                result.Resultcode = "200";
                result.Result = JsonConvert.DeserializeObject<List<ExchangeRateModel>>(rateDataString);
            }
            return result;
        }

        /// <summary>
        /// 获取汇率 Single
        /// </summary>
        /// <param name="currencyCode">币种code</param>
        /// <returns></returns>
        public async Task<Result> GetSingleRateAsync(string currencyCode)
        {

            var result = new Result() { Code = -2, Msg = "未知错误" };
            if (currencyCode.ToUpper() == "CNY" )
            {
                return result;
            }

            var resultData = await GetExchangeRateAsync();
            var rateCurrencyData = AppSettingsHelper.Get<RateCurrencyModel>("RateCurrency");
            var currencyModel = rateCurrencyData.Where(a => a.CurrencyCode == currencyCode).FirstOrDefault();
            if (currencyModel != null)
            {
                if (resultData.Resultcode == "200")
                {
                    if (resultData.Result != null)
                    {
                        result.Code = 0;
                        result.Data = ((List<ExchangeRateModel>)resultData.Result).Where(a => a.Name == currencyModel.CurrencyName).FirstOrDefault();
                    }
                }
                else
                {
                    result.Msg = resultData.Reason;
                }
            }
            return result;
        }

        /// <summary>
        /// 获取汇率转换结果
        /// </summary>
        /// <returns></returns>
        public async Task<Result> GetExchangeRateAsync(ExchangeRateDto dto)
        {
            var result = new Result() { Code = -2, Msg = "未知错误" };

            var rateCurrencyData = AppSettingsHelper.Get<RateCurrencyModel>("RateCurrency");

            if (dto.CurrencyCodePer.ToUpper() == "CNY")
            {
                var currencyModelSuf = rateCurrencyData.Where(a => a.CurrencyCode == dto.CurrencyCodeSuf).FirstOrDefault();
                if (currencyModelSuf == null)
                {
                    result.Msg = "转换后币种未找到!";
                    return result;
                }
                var rateModelSuf = await GetSingleRateAsync(currencyModelSuf.CurrencyCode);
                if (rateModelSuf.Code != 0)
                {
                    result.Msg = rateModelSuf.Msg;
                    return result;
                }
                if (string.IsNullOrEmpty(rateModelSuf.Data.FSellPri))
                {
                    result.Msg = string.Format("{0}({1})暂无汇率!", currencyModelSuf.CurrencyName, currencyModelSuf.CurrencyCode);
                    return result;
                }

                decimal moneySuf = Convert.ToDecimal(rateModelSuf.Data.FSellPri) / 100 ; //fSellPri
                decimal settlementMoney = dto.Money / moneySuf;
                var rateView = new ExchangeRateView { 
                    CurrencyCodePre = dto.CurrencyCodePer,
                    CurrencyNamePre = "人民币",
                    MoneyPre = dto.Money,
                    CurrencyCodeSuf = dto.CurrencyCodeSuf,
                    CurrencyNameSuf = currencyModelSuf.CurrencyName,
                    MoneySuf = CommonFun.CutDecimalWithN( settlementMoney,4),
                    UpdateTime = string.Format("{0} {1}", rateModelSuf.Data.Date, rateModelSuf.Data.Time)
                };

                result.Code = 0;
                result.Msg = "成功!";
                result.Data = rateView;
                return result;
            }
            else
            {
                var currencyModelPre = rateCurrencyData.Where(a => a.CurrencyCode == dto.CurrencyCodePer).FirstOrDefault();

                if (currencyModelPre == null)
                {
                    result.Msg = "转换前币种未找到!";
                    return result;
                }

                var rateModelPre = await GetSingleRateAsync(currencyModelPre.CurrencyCode);
                if (rateModelPre.Code != 0)
                {
                    result.Msg = rateModelPre.Msg;
                    return result;
                }

                if (string.IsNullOrEmpty(rateModelPre.Data.FSellPri))
                {
                    result.Msg = string.Format("{0}({1})暂无汇率!", currencyModelPre.CurrencyName, currencyModelPre.CurrencyCode);
                    return result;
                }

                decimal moneyPre = (Convert.ToDecimal(rateModelPre.Data.FSellPri) / 100) * dto.Money; //fSellPri

                if (dto.CurrencyCodeSuf.ToUpper() == "CNY")
                {
                    var rateView = new ExchangeRateView
                    {
                        CurrencyCodePre = dto.CurrencyCodePer,
                        CurrencyNamePre = currencyModelPre.CurrencyName,
                        MoneyPre = dto.Money,
                        CurrencyCodeSuf = "CNY",
                        CurrencyNameSuf = "人民币",
                        MoneySuf = CommonFun.CutDecimalWithN(moneyPre, 4),
                        UpdateTime = string.Format("{0} {1}", rateModelPre.Data.Date, rateModelPre.Data.Time)
                    };

                    result.Code = 0;
                    result.Msg = "成功!";
                    result.Data = rateView;
                }
                else
                {
                    var currencyModelSuf = rateCurrencyData.Where(a => a.CurrencyCode == dto.CurrencyCodeSuf).FirstOrDefault();

                    if (currencyModelSuf == null)
                    {
                        result.Msg = "转换后币种未找到!";
                        return result;
                    }

                    var rateModelSuf = await GetSingleRateAsync(currencyModelSuf.CurrencyCode);
                    if (rateModelSuf.Code != 0)
                    {
                        result.Msg = rateModelSuf.Msg;
                        return result;
                    }
                    if (string.IsNullOrEmpty(rateModelSuf.Data.FSellPri))
                    {
                        result.Msg = string.Format("{0}({1})暂无汇率!", currencyModelSuf.CurrencyName, currencyModelSuf.CurrencyCode);
                        return result;
                    }

                    decimal moneySuf = Convert.ToDecimal(rateModelSuf.Data.FSellPri) / 100; //fSellPri

                    decimal settlementMoney = moneyPre / moneySuf;
                    var rateView = new ExchangeRateView
                    {
                        CurrencyCodePre = dto.CurrencyCodePer,
                        CurrencyNamePre = currencyModelPre.CurrencyName,
                        MoneyPre = dto.Money,
                        CurrencyCodeSuf = dto.CurrencyCodeSuf,
                        CurrencyNameSuf = currencyModelSuf.CurrencyName,
                        MoneySuf = CommonFun.CutDecimalWithN(settlementMoney, 4),
                        UpdateTime = string.Format("{0} {1}", rateModelSuf.Data.Date, rateModelSuf.Data.Time)
                    };

                    result.Code = 0;
                    result.Msg = "成功!";
                    result.Data = rateView;
                }
            }

            return result;
        }

    }
}