using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Logging;
using MySystem.Util.UnionPay;
using MySystem.Entity.UnionPay;
using Library;
using LitJson;

namespace MySystem.Controllers
{
    /// <summary>
    /// 联合收单接口控制器
    /// </summary>
    [Route("api/[controller]")]
    [ApiController]
    public class UnionPayController : ControllerBase
    {
        private readonly ILogger<UnionPayController> _logger;

        public UnionPayController(ILogger<UnionPayController> logger)
        {
            _logger = logger;
        }

        /// <summary>
        /// 商户审核信息回调接口
        /// </summary>
        /// <param name="request">包含签名和数据的请求对象</param>
        /// <returns>回调处理结果</returns>
        [HttpPost("/api/unionpay/merchant/review/callback")]
        public IActionResult MerchantReviewCallback([FromBody] Dictionary<string, object> request)
        {
            try
            {
                _logger.LogInformation("收到商户审核回调请求");
                
                // 验证请求包含必要字段
                if (!request.ContainsKey("sign") || !request.ContainsKey("agentId") || !request.ContainsKey("data"))
                {
                    _logger.LogError("回调请求缺少必要字段");
                    return BadRequest(new { error_code = "400", error_msg = "参数错误", count = 0 });
                }

                // 解析data字段为UnionPayMerchantReviewCallbackRequest对象
                var dataJson = Newtonsoft.Json.JsonConvert.SerializeObject(request["data"]);
                var callbackRequest = Newtonsoft.Json.JsonConvert.DeserializeObject<UnionPayMerchantReviewCallbackRequest>(dataJson);

                if (callbackRequest == null)
                {
                    _logger.LogError("解析回调请求数据失败");
                    return BadRequest(new { error_code = "400", error_msg = "参数错误", count = 0 });
                }

                // 调用商户审核回调处理方法
                var response = UnionPayMerchantTradeHelper.Instance.ProcessMerchantReviewCallback(callbackRequest);

                // 返回处理结果
                return Ok(response);
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "处理商户审核回调时发生异常");
                return StatusCode(500, new { error_code = "9999", error_msg = "系统异常", count = 0 });
            }
        }

        /// <summary>
        /// 交易结算实时推送接口
        /// </summary>
        /// <param name="pushRequest">交易结算推送请求对象</param>
        /// <returns>推送处理结果</returns>
        [HttpPost("/api/unionpay/settlement/push")]
        public IActionResult SettlementPush([FromBody] UnionPaySettlementPushRequest pushRequest)
        {
            try
            {
                _logger.LogInformation("收到交易结算实时推送请求");

                if (pushRequest == null)
                {
                    _logger.LogError("推送请求数据为空");
                    return BadRequest(new { error_code = "400", error_msg = "参数错误", count = 0 });
                }

                // 调用交易结算推送处理方法
                var response = UnionPayTradeSettlementHelper.Instance.ProcessSettlementPush(pushRequest);

                // 返回处理结果
                return Ok(response);
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "处理交易结算实时推送时发生异常");
                return StatusCode(500, new { error_code = "9999", error_msg = "系统异常", count = 0 });
            }
        }
    }
}