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using System.Linq;
using System.Net.Http;
using System.Net;
using System.Text;
using System.Web.Http;
 
using Newtonsoft.Json;
 
using static HH.WCS.Mobox3.AnGang.api.OtherModel;
using System.Threading.Tasks;
 
namespace HH.WCS.Mobox3.AnGang.api {
    /// <summary>
    /// ERP 调用的接口
    /// </summary>
    [RoutePrefix("api")]
    public class ErpController : ApiController {
        /// <summary>
        /// 入库数据同步(ERP)
        /// </summary>
        /// <param name="model"></param>
        /// <returns></returns>
        [HttpPost]
        [Route("InboundDataSync")]
        public IHttpActionResult InboundDataSync(InboundDataSyncInfo model) {
            LogHelper.Info("触发API:入库数据同步" + JsonConvert.SerializeObject(model), "API");
 
            //var headers = Request.Headers;
            //var checkRes = CheckHeaders(headers);
            //if (!checkRes.isSuccess) {
            //    return CreateErrorResponse(checkRes.code, checkRes.message);
            //}
 
            var res = ApiHelper.InboundDataSync(model);
            return CreateSuccessResponse(res);
        }
 
        /// <summary>
        /// 出库发料同步(ERP)
        /// </summary>
        /// <param name="model"></param>
        /// <returns></returns>
        [HttpPost]
        [Route("OutboundDataSync")]
        public IHttpActionResult OutboundDataSync(OutboundDataSyncInfo model) {
            LogHelper.Info("触发API:出库发料同步" + JsonConvert.SerializeObject(model), "API");
 
            //var headers = Request.Headers;
            //var checkRes = CheckHeaders(headers);
            //if (!checkRes.isSuccess) {
            //    return CreateErrorResponse(checkRes.code, checkRes.message);
            //}
            
            var res = ApiHelper.OutboundDataSync(model);
            return CreateSuccessResponse(res);
        }
 
        private CheckHeadersResult CheckHeaders(System.Net.Http.Headers.HttpRequestHeaders headers) {
            // 必须字段验证
            if (!headers.Contains("sourceAppCode") || !headers.Contains("serviceId") || !headers.Contains("msgSendTime")) {
                return CreateCheckHeadersResult(false, "2003", "缺少必要请求头参数");
            }
 
            var headerModel = new {
                SourceAppCode = headers.GetValues("sourceAppCode").First(),
                Password = headers.Contains("password") ? headers.GetValues("password").First() : null,
                ServiceId = headers.GetValues("serviceId").First(),
                MsgToken = headers.Contains("msgToken") ? headers.GetValues("msgToken").First() : null,
                MsgSendTime = headers.GetValues("msgSendTime").First()
            };
 
            // 验证Header
            var validationResult = ValidateHeaders(headerModel);
            if (validationResult != null) {
                return validationResult;
            }
 
            // 验证Body
            if (Request.Content.Headers.ContentLength > 2 * 1024 * 1024) {
                return CreateCheckHeadersResult(false, "2102", "消息内容过长,超过2M");
            }
 
            return CreateCheckHeadersResult(true);
        }
 
        private IHttpActionResult CreateSuccessResponse(object data) {
            return ResponseMessage(new HttpResponseMessage(HttpStatusCode.OK) {
                Headers = { { "returnCode", "0" } },
                Content = new StringContent(JsonConvert.SerializeObject(data), Encoding.UTF8, "application/json")
            });
        }
 
        private IHttpActionResult CreateErrorResponse(string code, string message) {
            return ResponseMessage(new HttpResponseMessage(HttpStatusCode.OK) {
                Headers = { { "returnCode", code } },
                Content = new StringContent(message)
            });
        }
 
        private CheckHeadersResult ValidateHeaders(dynamic headers) {
            // 实现所有Header验证逻辑
            if (!IsRegisteredApp(headers.SourceAppCode, headers.Password)) {
                return CreateCheckHeadersResult(false, "2201", "源调用系统未注册");
            }
 
            if (!IsValidService(headers.ServiceId)) {
                return CreateCheckHeadersResult(false, "2202", "代理服务未注册");
            }
 
            if (!IsValidDateTime(headers.MsgSendTime)) {
                return CreateCheckHeadersResult(false, "2101", "时间格式校验失败");
            }
 
            if (!string.IsNullOrEmpty(headers.MsgToken) && headers.MsgToken.Length > 32) {
                return CreateCheckHeadersResult(false, "2104", "消息令牌过长,超过32位");
            }
 
            return null;
        }
 
        private bool IsRegisteredApp(string appId, string password) {
            return true;
        }
 
        private bool IsValidService(string serviceId) {
            return true;
        }
 
        private bool IsValidDateTime(string dataTime) {
            return true;
        }
 
        private CheckHeadersResult CreateCheckHeadersResult(bool isSuccess, string code = "", string message = "") {
            return new CheckHeadersResult {
                code = code,
                message = message,
                isSuccess = isSuccess
            };
        }
    }
 
    public class CheckHeadersResult {
        public bool isSuccess { get; set; }
        public string code { get; set; }
        public string message { get; set; }
    }
}