using System.Text;
using System.Text.Json;
using System.Xml.Serialization;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Logging;
using Volo.Abp.Application.Services;

namespace Yi.Framework.AiHub.Application.Services;

/// <summary>
/// 服务号服务
/// </summary>
public class FuwuhaoService : ApplicationService
{
    private readonly ILogger<FuwuhaoService> _logger;
    private readonly IHttpContextAccessor _accessor;

    public FuwuhaoService(ILogger<FuwuhaoService> logger, IHttpContextAccessor accessor)
    {
        _logger = logger;
        _accessor = accessor;
    }

    /// <summary>
    /// 查询已登录的账户信息
    /// </summary>
    /// <returns></returns>
    [HttpGet("fuwuhao/callback")]
    public async Task<string> GetCallbackAsync([FromQuery] string signature, [FromQuery] string timestamp,
        [FromQuery] string nonce, [FromQuery] string echostr)
    {

        return echostr;
    }

    [HttpPost("fuwuhao/callback")]
    public async Task<string> PostCallbackAsync([FromQuery] string signature, [FromQuery] string timestamp,
        [FromQuery] string nonce)
    {
        var request = _accessor.HttpContext.Request;
        // 1. 读取原始 XML 内容
        using var reader = new StreamReader(request.Body, Encoding.UTF8);
        var xmlString = await reader.ReadToEndAsync();
        
        var serializer = new XmlSerializer(typeof(FuwuhaoCallModel));
        using var stringReader = new StringReader(xmlString);
        var body = (FuwuhaoCallModel)serializer.Deserialize(stringReader);
        _logger.LogError("服务号Post回调通知：" + JsonSerializer.Serialize(body, new JsonSerializerOptions()
        {
            WriteIndented = true
        }));
        return "success";
    }
}

[XmlRoot("xml")]
public class FuwuhaoCallModel
{
    [XmlElement("ToUserName")] public string ToUserName { get; set; }
    [XmlElement("FromUserName")] public string FromUserName { get; set; }
    [XmlElement("CreateTime")] public string CreateTime { get; set; }
    [XmlElement("MsgType")] public string MsgType { get; set; }
    [XmlElement("Event")] public string Event { get; set; }
    [XmlElement("EventKey")] public string EventKey { get; set; }
    [XmlElement("Ticket")] public string Ticket { get; set; }
}