using Aop.Api.Domain;
using ApiTools.Core;
using log4net.Core;
using MediatR;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Logging;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ApiTools.Application
{
    public class WxmpSubscribMessageCommandHandler(
            ILogger<WxmpSubscribMessageCommandHandler> logger,
            WxmpUtils utils,
            IHttpContextAccessor httpContextAccessor
        ) :
        IRequestHandler<SendWxmpSubscribMessageCommand, Guid>,
        IRequestHandler<WxmpSubscribMessageNotifyCommand, bool>
    {
        private readonly ILogger<WxmpSubscribMessageCommandHandler> logger = logger;
        private readonly WxmpUtils utils = utils;
        private readonly IHttpContextAccessor httpContextAccessor = httpContextAccessor;

        /// <summary>
        /// 微信小程序发送订阅消息
        /// </summary>
        /// <param name="request"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public async Task<Guid> Handle(SendWxmpSubscribMessageCommand request, CancellationToken cancellationToken)
        {
            await utils.WxmpSendSubscribMessage(new WxmpSendSubscribMessageRequest
            {
                Data = request.Data,
                TemplateId = request.TemplateId,
                Page = request.Page,
                WxmpCode = request.WxmpCode,
                Touser = request.Touser,
            });
            return Guid.Empty;
        }

        /// <summary>
        /// 微信小程序订阅消息通知
        /// </summary>
        /// <param name="request"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public async Task<bool> Handle(WxmpSubscribMessageNotifyCommand request, CancellationToken cancellationToken)
        {
            var req = httpContextAccessor.HttpContext.Request;
            logger.LogInformation($"微信小程序订阅消息通知query：{req.QueryString.Value}");

            req.EnableBuffering();
            req.Body.Position = 0;
            using var reader = new StreamReader(req.Body, Encoding.UTF8, leaveOpen: true);
            var body = await reader.ReadToEndAsync();
            logger.LogInformation($"微信小程序订阅消息通知body：{body}");
            req.Body.Position = 0;
            return true;
        }
    }
}