using Furion;
using Furion.DependencyInjection;
using Furion.DynamicApiController;
using Furion.FriendlyException;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Options;
using SKIT.FlurlHttpClient.Wechat.TenpayV3;
using SKIT.FlurlHttpClient.Wechat.TenpayV3.Events;
using SKIT.FlurlHttpClient.Wechat.TenpayV3.Models;
using SKIT.FlurlHttpClient.Wechat.TenpayV3.Settings;
using System;
using System.IO;
using System.Text;
using System.Threading.Tasks;

namespace Admin.NET.Core.Service
{
    /// <summary>
    /// 微信支付服务
    /// </summary>
    [ApiDescriptionSettings(Name = "微信支付", Order = 99)]
    public class WeChatPayService : IDynamicApiController, ITransient
    {
        private readonly SqlSugarRepository<WechatPay> _wechatPayUserRep;

        private readonly WechatPayOptions _wechatPayOptions;
        private readonly WechatTenpayClient _wechatTenpayClient;
        private readonly PayCallBackOptions _payCallBackOptions;

        public WeChatPayService(SqlSugarRepository<WechatPay> wechatPayUserRep,
            IOptions<WechatPayOptions> wechatPayOptions,
            IOptions<PayCallBackOptions> payCallBackOptions)
        {
            _wechatPayUserRep = wechatPayUserRep;
            _wechatPayOptions = wechatPayOptions.Value;
            _wechatTenpayClient = CreateTenpayClient();
            _payCallBackOptions = payCallBackOptions.Value;
        }

        /// <summary>
        /// 初始化微信支付客户端
        /// </summary>
        /// <returns></returns>
        private WechatTenpayClient CreateTenpayClient()
        {
            var tenpayClientOptions = new WechatTenpayClientOptions()
            {
                MerchantId = _wechatPayOptions.MerchantId,
                MerchantV3Secret = _wechatPayOptions.MerchantV3Secret,
                MerchantCertificateSerialNumber = _wechatPayOptions.MerchantCertificateSerialNumber,
                MerchantCertificatePrivateKey = CommonUtil.GetRootPathFileText(_wechatPayOptions.MerchantCertificatePrivateKey),
                PlatformCertificateManager = new InMemoryCertificateManager()
            };
            return new WechatTenpayClient(tenpayClientOptions);
        }

        /// <summary>
        /// 生成JSAPI调起支付所需参数
        /// </summary>
        /// <param name="input"></param>
        /// <returns></returns>
        [HttpPost("/weChatPay/genPayPara")]
        public dynamic GenerateParametersForJsapiPay(WechatPayParaInput input)
        {
            return _wechatTenpayClient.GenerateParametersForJsapiPayRequest(_wechatPayOptions.AppId, input.PrepayId);
        }

        /// <summary>
        /// 微信支付统一下单获取Id
        /// </summary>
        [HttpPost("/weChatPay/payTransaction")]
        public async Task<dynamic> CreatePayTransaction([FromBody] WechatPayTransactionInput input)
        {
            var request = new CreatePayTransactionJsapiRequest()
            {
                OutTradeNumber = DateTimeOffset.Now.ToString("yyyyMMddHHmmssfff") + (new Random()).Next(100, 1000), // YitIdHelper.NextId(), // 订单号
                AppId = _wechatPayOptions.AppId,
                Description = input.Description,
                Attachment = input.Attachment,
                GoodsTag = input.GoodsTag,
                ExpireTime = DateTimeOffset.Now.AddMinutes(10),
                NotifyUrl = _payCallBackOptions.WechatPayUrl,
                Amount = new CreatePayTransactionJsapiRequest.Types.Amount() { Total = input.Total },
                Payer = new CreatePayTransactionJsapiRequest.Types.Payer() { OpenId = input.OpenId }
            };
            var response = await _wechatTenpayClient.ExecuteCreatePayTransactionJsapiAsync(request);
            if (!response.IsSuccessful())
                throw Oops.Oh(response.ErrorMessage);

            // 保存订单信息
            var wechatPay = new WechatPay()
            {
                MerchantId = _wechatPayOptions.MerchantId,
                OutTradeNumber = request.OutTradeNumber,
                Description = input.Description,
                Attachment = input.Attachment,
                GoodsTag = input.GoodsTag,
                Total = input.Total,
                OpenId = input.OpenId
            };
            await _wechatPayUserRep.InsertAsync(wechatPay);

            return new
            {
                response.PrepayId,
                request.OutTradeNumber
            };
        }

        /// <summary>
        /// 获取支付订单详情
        /// </summary>
        /// <param name="tradeId"></param>
        /// <returns></returns>
        [HttpGet("/weChatPay/payInfo")]
        public async Task<WechatPay> GetWeChatPayInfo(string tradeId)
        {
            return await _wechatPayUserRep.GetFirstAsync(u => u.OutTradeNumber == tradeId);
        }

        /// <summary>
        /// 微信支付成功回调(商户平台发来的通知内容)
        /// </summary>
        /// <returns></returns>
        [HttpPost("/notify/weChatPay/unifiedorder")]
        [AllowAnonymous]
        public async Task WeChatPayCallBack()
        {
            using var ms = new MemoryStream();
            await App.HttpContext.Request.Body.CopyToAsync(ms);
            var b = ms.ToArray();
            var callbackJson = Encoding.UTF8.GetString(b);

            var callbackModel = _wechatTenpayClient.DeserializeEvent(callbackJson);
            if ("TRANSACTION.SUCCESS".Equals(callbackModel.EventType))
            {
                var callbackResource = _wechatTenpayClient.DecryptEventResource<TransactionResource>(callbackModel);

                // 修改订单支付状态
                var wechatPay = await _wechatPayUserRep.GetFirstAsync(u => u.OutTradeNumber == callbackResource.OutTradeNumber
                    && u.MerchantId == callbackResource.MerchantId);
                if (wechatPay == null) return;
                //wechatPay.OpenId = callbackResource.Payer.OpenId; // 支付者标识
                //wechatPay.MerchantId = callbackResource.MerchantId; // 微信商户号
                //wechatPay.OutTradeNumber = callbackResource.OutTradeNumber; // 商户订单号
                wechatPay.TransactionId = callbackResource.TransactionId; // 支付订单号
                wechatPay.TradeType = callbackResource.TradeType; // 交易类型
                wechatPay.TradeState = callbackResource.TradeState; // 交易状态
                wechatPay.TradeStateDescription = callbackResource.TradeStateDescription; // 交易状态描述
                wechatPay.BankType = callbackResource.BankType; // 付款银行类型
                wechatPay.Total = callbackResource.Amount.Total; // 订单总金额
                wechatPay.PayerTotal = callbackResource.Amount.PayerTotal; // 用户支付金额
                wechatPay.SuccessTime = callbackResource.SuccessTime; // 支付完成时间

                await _wechatPayUserRep.AsUpdateable(wechatPay).IgnoreColumns(true).ExecuteCommandAsync();
            }
        }
    }
}