using Longbow.Web.Mvc;
using PetaPoco;
using System;
using System.ComponentModel;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Data.Common;

namespace Bootstrap.DataAccess
{
 /// <summary>
 /// 异常实体类
 /// </summary>
 [PrimaryKey("Id", AutoIncrement = true)]
 public class Exceptions
 {
 /// <summary>
 /// 获得/设置 主键
 /// </summary>
 public string? Id { get; set; }

 /// <summary>
 /// 获得/设置 主键
 /// </summary>
 public string AppDomainName { get; set; } = "";

 /// <summary>
 /// 获得/设置 用户请求页面地址
 /// </summary>
 [DisplayName("请求网址")]
 public string ErrorPage { get; set; } = "";

 /// <summary>
 /// 获得/设置 用户 ID
 /// </summary>
 [DisplayName("用户名")]
 public string? UserId { get; set; }

 /// <summary>
 /// 获得/设置 用户 IP
 /// </summary>
 [DisplayName("登录主机")]
 public string? UserIp { get; set; }

 /// <summary>
 /// 获得/设置 异常类型
 /// </summary>
 [DisplayName("异常类型")]
 public string? ExceptionType { get; set; }

 /// <summary>
 /// 获得/设置 异常错误描述信息
 /// </summary>
 [DisplayName("异常描述")]
 public string Message { get; set; } = "";

 /// <summary>
 /// 获得/设置 异常堆栈信息
 /// </summary>
 public string? StackTrace { get; set; }

 /// <summary>
 /// 获得/设置 日志时间戳
 /// </summary>
 [DisplayName("记录时间")]
 public DateTime LogTime { get; set; }

 /// <summary>
 /// 获得/设置 时间描述 2分钟内为刚刚
 /// </summary>
 [ResultColumn]
 public string Period { get; set; } = "";

 /// <summary>
 /// 获得/设置 分类信息
 /// </summary>
 public string Category { get; set; } = "";

 private static void ClearExceptions() => System.Threading.Tasks.Task.Run(() =>
 {
 DbManager.Create().Execute("delete from Exceptions where LogTime < @0", DateTime.Now.AddMonths(0 - DictHelper.RetrieveExceptionsLogPeriod()));
 });

 /// <summary>
 /// 
 /// </summary>
 /// <param name="ex"></param>
 /// <param name="additionalInfo"></param>
 /// <returns></returns>
 public virtual bool Log(Exception ex, NameValueCollection additionalInfo)
 {
 if (ex == null) return true;

 var errorPage = additionalInfo?["ErrorPage"] ?? (ex.GetType().Name.Length > 50 ? ex.GetType().Name.Substring(0, 50) : ex.GetType().Name);
 var loopEx = ex;
 var category = "App";
 while (loopEx != null)
 {
 if (typeof(DbException).IsAssignableFrom(loopEx.GetType()))
 {
 category = "DB";
 break;
 }
 loopEx = loopEx.InnerException;
 }
 try
 {
 // 防止数据库写入操作失败后陷入死循环
 // fix https://gitee.com/LongbowEnterprise/dashboard/issues?id=I136OP
 using (var db = Longbow.Data.DbManager.Create())
 {
 db.Insert(new Exceptions
 {
 AppDomainName = AppDomain.CurrentDomain.FriendlyName,
 ErrorPage = errorPage,
 UserId = additionalInfo?["UserId"],
 UserIp = additionalInfo?["UserIp"],
 ExceptionType = ex.GetType().FullName,
 Message = ex.Message,
 StackTrace = ex.StackTrace,
 LogTime = DateTime.Now,
 Category = category
 });
 }
 ClearExceptions();
 }
 catch { }
 return true;
 }

 /// <summary>
 /// 查询一周内所有异常
 /// </summary>
 /// <returns></returns>
 public virtual IEnumerable<Exceptions> Retrieves()
 {
 using var db = DbManager.Create();
 return db.Fetch<Exceptions>("select * from Exceptions where LogTime > @0 order by LogTime desc", DateTime.Now.AddMonths(0 - DictHelper.RetrieveExceptionsLogPeriod()));
 }

 /// <summary>
 /// 
 /// </summary>
 /// <param name="po"></param>
 /// <param name="startTime"></param>
 /// <param name="endTime"></param>
 /// <returns></returns>
 public virtual Page<Exceptions> RetrievePages(PaginationOption po, DateTime? startTime, DateTime? endTime)
 {
 if (string.IsNullOrEmpty(po.Sort)) po.Sort = "LogTime";
 if (string.IsNullOrEmpty(po.Order)) po.Order = "desc";

 var sql = new Sql("select * from Exceptions");
 if (startTime.HasValue) sql.Append("where LogTime > @0", startTime.Value);
 if (endTime.HasValue) sql.Append("where LogTime < @0", endTime.Value.AddDays(1).AddSeconds(-1));
 if (startTime == null && endTime == null) sql.Append("where LogTime > @0", DateTime.Today.AddMonths(0 - DictHelper.RetrieveExceptionsLogPeriod()));
 sql.Append($"order by {po.Sort}{po.Order}");

 using var db = DbManager.Create();
 return db.Page<Exceptions>(po.PageIndex, po.Limit, sql);
 }
 }
}