using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Web;
using WebService.SDK.PayCommon;

namespace WebService.SDK.IRichPay
{
    public class IRichPayAPI
    {
        /// <summary>
        /// 联动优势被扫交易接口
        /// </summary>
        /// <param name="payConfig">接口配置</param>
        /// <param name="merchantInfo">平台商户信息</param>
        /// <param name="authCode">用户付款授权码</param>
        /// <param name="merchantOrderCode">商户交易订单号</param>
        /// <param name="payAmount">交易金额（元）</param>
        /// <returns></returns>
        public static Model.IRichPayResultModel BeScanPay(IRichPayConfig payConfig,
            MobilePayConfig.PayMerchant merchantInfo, string authCode,
             string merchantOrderCode, string payAmount)
        {
            if (payConfig == null)
            {
                return default(Model.IRichPayResultModel);
            }
            if (merchantInfo == null || string.IsNullOrWhiteSpace(merchantInfo.MerchantCode))
            {
                return default(Model.IRichPayResultModel);
            }
            if (!decimal.TryParse(payAmount, out decimal _PayAmount) || _PayAmount <= 0)
            {
                return default(Model.IRichPayResultModel);
            }
            Dictionary<string, string> _ApiDictionary = new Dictionary<string, string>
            {
                { "orgcode", payConfig.Organization },//联动优势平台机构号
                { "usercode", payConfig.PlatformAPPID },//联动优势平台UserCode
                { "merchantcode", merchantInfo.MerchantCode },//联动优势平台商户号
                { "timespan", DateTime.Now.ToString("yyyyMMddHHmmss") },//时间戳
                { "money", _PayAmount.ToString() }, //交易金额
                { "orderid", merchantOrderCode },//商户订单号
                { "authcode", authCode }//用户付款授权码
            };
            _ApiDictionary.Add("sign", ApiParamSign(_ApiDictionary, payConfig.PlatformKey));
            LogHelper.WriteReceiveLog("支付反扫-传第三方参数：" +
                _ApiDictionary.Select(pair => pair.Key + "=" + pair.Value).
                DefaultIfEmpty("").Aggregate((a, b) => a + "&" + b));
            return JsonConvert.DeserializeObject<Model.IRichPayResultModel>(CommonHelper.HttpUrlPost(
                _ApiDictionary.Select(pair => pair.Key + "=" + pair.Value).
                DefaultIfEmpty("").Aggregate((a, b) => a + "&" + b), payConfig.BeScanURL,
                "application/x-www-form-urlencoded", payConfig.PlatformTimeout));
        }

        /// <summary>
        /// 联动优势交易查询接口
        /// </summary>
        /// <param name="payConfig">接口配置</param>
        /// <param name="merchantInfo">平台商户信息</param>
        /// <param name="merchantOrderCode">商户交易订单号</param>
        /// <param name="platformOrderCode">平台交易订单号</param>
        /// <param name="payAmount">交易金额</param>
        /// <returns></returns>
        public static Model.IRichPayResultModel QueryPay(IRichPayConfig payConfig,
            MobilePayConfig.PayMerchant merchantInfo, string merchantOrderCode,
            string platformOrderCode, string payAmount)
        {
            if (payConfig == null)
            {
                return default(Model.IRichPayResultModel);
            }
            if (merchantInfo == null || string.IsNullOrWhiteSpace(merchantInfo.MerchantCode))
            {
                return default(Model.IRichPayResultModel);
            }
            Dictionary<string, string> _ApiDictionary = new Dictionary<string, string>
            {
                { "orgcode", payConfig.Organization },//联动优势平台机构号
                { "usercode", payConfig.PlatformAPPID },//联动优势平台UserCode
                { "timespan", DateTime.Now.ToString("yyyyMMddHHmmss") },//时间戳
                { "orderid", merchantOrderCode },//商户订单号
            };

            _ApiDictionary.Add("sign", ApiParamSign(_ApiDictionary, payConfig.PlatformKey));
            LogHelper.WriteReceiveLog("支付查询-传第三方参数：" +
                _ApiDictionary.Select(pair => pair.Key + "=" + pair.Value).
                DefaultIfEmpty("").Aggregate((a, b) => a + "&" + b));

            return JsonConvert.DeserializeObject<Model.IRichPayResultModel>(CommonHelper.HttpUrlPost(
                _ApiDictionary.Select(pair => pair.Key + "=" + pair.Value).
                DefaultIfEmpty("").Aggregate((a, b) => a + "&" + b), payConfig.QueryURL,
                "application/x-www-form-urlencoded", payConfig.PlatformTimeout));
        }

        /// <summary>
        /// 联动优势交易撤销（退款）接口
        /// </summary>
        /// <param name="payConfig">接口配置</param>
        /// <param name="merchantInfo">平台商户信息</param>
        /// <param name="platformOrderCode">平台交易订单号</param>
        /// <param name="merchantOrderCode">商户交易订单号</param>
        /// <param name="refundOrderCode">退款订单号</param>
        /// <param name="payAmount">退款金额</param>
        /// <returns></returns>
        public static Model.IRichPayResultModel PayRefund(IRichPayConfig payConfig,
            MobilePayConfig.PayMerchant merchantInfo, string platformOrderCode,
            string merchantOrderCode, string refundOrderCode, string payAmount)
        {
            if (payConfig == null)
            {
                return default(Model.IRichPayResultModel);
            }
            if (merchantInfo == null || string.IsNullOrWhiteSpace(merchantInfo.MerchantCode))
            {
                return default(Model.IRichPayResultModel);
            }
            if (!decimal.TryParse(payAmount, out decimal _PayAmount) || _PayAmount <= 0)
            {
                return default(Model.IRichPayResultModel);
            }
            Dictionary<string, string> _ApiDictionary = new Dictionary<string, string>
            {
                { "orgcode", payConfig.Organization },//联动优势平台机构号
                { "usercode", payConfig.PlatformAPPID },//联动优势平台UserCode
                { "merchantcode", merchantInfo.MerchantCode },//联动优势平台商户号
                { "timespan", DateTime.Now.ToString("yyyyMMddHHmmss") },//时间戳
                { "orderid", merchantOrderCode },//原商户订单号
                { "money", _PayAmount.ToString() } //交易金额
            };

            _ApiDictionary.Add("sign", ApiParamSign(_ApiDictionary, payConfig.PlatformKey));
            LogHelper.WriteReceiveLog("支付退款-传第三方参数：" +
                _ApiDictionary.Select(pair => pair.Key + "=" + pair.Value).
                DefaultIfEmpty("").Aggregate((a, b) => a + "&" + b));

            return JsonConvert.DeserializeObject<Model.IRichPayResultModel>(CommonHelper.HttpUrlPost(
                _ApiDictionary.Select(pair => pair.Key + "=" + pair.Value).
                DefaultIfEmpty("").Aggregate((a, b) => a + "&" + b), payConfig.PayRefundURL,
                "application/x-www-form-urlencoded", payConfig.PlatformTimeout));
        }

        /// <summary>
        /// 联动优势交易撤销查询接口
        /// </summary>
        /// <param name="payConfig">接口配置</param>
        /// <param name="merchantInfo">平台商户信息</param>
        /// <param name="merchantOrderCode">商户交易订单号</param>
        /// <param name="platformOrderCode">平台交易订单号</param>
        /// <param name="payAmount">交易金额</param>
        public static Model.IRichPayResultModel PayQueryRefund(IRichPayConfig payConfig,
            MobilePayConfig.PayMerchant merchantInfo, string merchantOrderCode,
            string platformOrderCode, string payAmount)
        {
            if (payConfig == null)
            {
                return default(Model.IRichPayResultModel);
            }
            if (merchantInfo == null || string.IsNullOrWhiteSpace(merchantInfo.MerchantCode))
            {
                return default(Model.IRichPayResultModel);
            }
            Dictionary<string, string> _ApiDictionary = new Dictionary<string, string>
            {
                { "orgcode", payConfig.Organization },//联动优势平台机构号
                { "usercode", payConfig.PlatformAPPID },//联动优势平台UserCode
                { "timespan", DateTime.Now.ToString("yyyyMMddHHmmss") },//时间戳
                { "orderid", merchantOrderCode },//商户订单号
            };

            _ApiDictionary.Add("sign", ApiParamSign(_ApiDictionary, payConfig.PlatformKey));
            LogHelper.WriteReceiveLog("交易撤销查询-传第三方参数：" +
                _ApiDictionary.Select(pair => pair.Key + "=" + pair.Value).
                DefaultIfEmpty("").Aggregate((a, b) => a + "&" + b));

            return JsonConvert.DeserializeObject<Model.IRichPayResultModel>(CommonHelper.HttpUrlPost(
                _ApiDictionary.Select(pair => pair.Key + "=" + pair.Value).
                DefaultIfEmpty("").Aggregate((a, b) => a + "&" + b), payConfig.PayQueryRefundURL,
                "application/x-www-form-urlencoded", payConfig.PlatformTimeout));
        }
        /// <summary>
        /// 联动优势支付平台参数签名
        /// </summary>
        /// <param name="signParm">待签名参数集</param>
        /// <param name="MD5Key">签名密钥</param>
        /// <returns></returns>
        public static string ApiParamSign(Dictionary<string, string> signParm, string MD5Key)
        {
            return BitConverter.ToString(MD5.Create().ComputeHash(
                Encoding.UTF8.GetBytes(BitConverter.ToString(MD5.Create().ComputeHash(
                    Encoding.UTF8.GetBytes(MD5Key))).Replace("-", "").ToUpper() +
                    new Dictionary<string, string>(signParm).OrderBy(p => p.Key)
                    .Select(pair => pair.Key + "=" + HttpUtility.UrlEncode(pair.Value)).DefaultIfEmpty("")
                    .Aggregate((a, b) => a + "&" + b)))).Replace("-", "").ToUpper();
        }
    }
}