using Ds.Module.WeChat.Models;
using Ds.Module.WeChat.Service;
using DS.Module.Nuget;
using MediatR;
using SKIT.FlurlHttpClient.Wechat.Api;
using SKIT.FlurlHttpClient.Wechat.Work.Events;

namespace Ds.Module.WeChat.Mediator
{
    /// <summary>
    /// 表示 TEXT 事件的数据
    /// </summary>
    public class TextMessageEventCommand : IRequest<WeChatApiCallBack>
    {
        public TextMessageEvent EventObj { get; set; }
    }

    /// <summary>
    /// 处理TEXT 事件的数据-以被动回复文本消息为例
    /// </summary>
    public class TextMessageEventCommandHandler : IRequestHandler<TextMessageEventCommand, WeChatApiCallBack>
    {
        private readonly IWeChatApiHttpClientFactory _weChatApiHttpClientFactory;

        public TextMessageEventCommandHandler(IWeChatApiHttpClientFactory weChatApiHttpClientFactory)
        {
            _weChatApiHttpClientFactory = weChatApiHttpClientFactory;
        }

        public async Task<WeChatApiCallBack> Handle(TextMessageEventCommand request, CancellationToken cancellationToken)
        {
            var jm = new WeChatApiCallBack() { Status = true };

            if (request.EventObj != null)
            {
                var client = _weChatApiHttpClientFactory.CreateWxOpenClient();
                var replyModel = new SKIT.FlurlHttpClient.Wechat.Api.Events.TransferCustomerServiceReply()
                {
                    ToUserName = request.EventObj.FromUserName,
                    FromUserName = request.EventObj.ToUserName,
                    CreateTimestamp = CommonHelper.GetTimeStampByTotalSeconds()
                };
                var replyXml = client.SerializeEventToXml(replyModel);
                jm.Data = replyXml;
            }

            return await Task.FromResult(jm);
        }
    }
}