using Longbow.Cache;
using Longbow.Web.Mvc;
using PetaPoco;
using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.IO;
using System.Linq;

namespace Bootstrap.DataAccess
{
 /// <summary>
 /// 
 /// </summary>
 public static class ExceptionsHelper
 {
 /// <summary>
 /// 
 /// </summary>
 public const string RetrieveExceptionsDataKey = "ExceptionHelper-RetrieveExceptions";
 /// <summary>
 /// 
 /// </summary>
 /// <param name="ex"></param>
 /// <param name="additionalInfo"></param>
 /// <returns></returns>
 public static void Log(Exception ex, NameValueCollection additionalInfo)
 {
 var ret = DbContextManager.Create<Exceptions>()?.Log(ex, additionalInfo) ?? false;
 if (ret) CacheManager.Clear(RetrieveExceptionsDataKey);
 }

 /// <summary>
 /// 查询一周内所有异常
 /// </summary>
 /// <returns></returns>
 public static IEnumerable<Exceptions> Retrieves() => CacheManager.GetOrAdd(RetrieveExceptionsDataKey, key => DbContextManager.Create<Exceptions>()?.Retrieves()) ?? new Exceptions[0];

 /// <summary>
 /// 
 /// </summary>
 /// <param name="po"></param>
 /// <param name="startTime"></param>
 /// <param name="endTime"></param>
 /// <returns></returns>
 public static Page<Exceptions> RetrievePages(PaginationOption po, DateTime? startTime, DateTime? endTime) => DbContextManager.Create<Exceptions>()?.RetrievePages(po, startTime, endTime) ?? new Page<Exceptions>() { Items = new List<Exceptions>() };

 /// <summary>
 /// 获得 Error 错误日志目录下所有文件
 /// </summary>
 public static IEnumerable<string> RetrieveLogFiles()
 {
 var filePath = Path.Combine(AppContext.BaseDirectory, "Error");
 return Directory.Exists(filePath)
 ? Directory.GetFiles(filePath)
 .Where(f => Path.GetExtension(f).Equals(".log", StringComparison.OrdinalIgnoreCase))
 .Select(f => Path.GetFileNameWithoutExtension(f)).OrderByDescending(s => s)
 : Enumerable.Empty<string>();
 }
 }
}