DocSpace-buildtools/common/services/ASC.AuditTrail/AuditEventsRepository.cs

/*
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using System;
using System.Collections.Generic;
using System.Linq;

using ASC.AuditTrail.Mappers;
using ASC.Common;
using ASC.Core.Common.EF;
using ASC.Core.Common.EF.Context;
using ASC.Core.Users;
using ASC.MessagingSystem;

using Newtonsoft.Json;

namespace ASC.AuditTrail
{
    [Scope]
    public class AuditEventsRepository
    {
        private MessageTarget MessageTarget { get; set; }
        private UserFormatter UserFormatter { get; set; }
        private Lazy<AuditTrailContext> LazyAuditTrailContext { get; }
        private Lazy<UserDbContext> LazyUserDbContext { get; }
        private AuditTrailContext AuditTrailContext { get => LazyAuditTrailContext.Value; }
        private UserDbContext UserDbContext { get => LazyUserDbContext.Value; }
        private AuditActionMapper AuditActionMapper { get; }

        public AuditEventsRepository(MessageTarget messageTarget, UserFormatter userFormatter, DbContextManager<AuditTrailContext> dbContextManager, AuditActionMapper auditActionMapper, DbContextManager<UserDbContext> DbContextManager)
        {
            MessageTarget = messageTarget;
            UserFormatter = userFormatter;
            LazyAuditTrailContext = new Lazy<AuditTrailContext>(() => dbContextManager.Value );
            LazyUserDbContext = new Lazy<UserDbContext>(() => DbContextManager.Value);
            AuditActionMapper = auditActionMapper;
        }

        public IEnumerable<AuditEvent> GetLast(int tenant, int chunk)
        {
            return Get(tenant, null, null, chunk);
        }

        public IEnumerable<AuditEvent> Get(int tenant, DateTime from, DateTime to)
        {
            return Get(tenant, from, to, null);
        }

        private class Query
        {
            public Core.Common.EF.Model.AuditEvent AuditEvent { get; set; }
            public User User { get; set; }
        }

        private IEnumerable<AuditEvent> Get(int tenant, DateTime? fromDate, DateTime? to, int? limit)
        {
            var query =
               from q in AuditTrailContext.AuditEvents
               from p in UserDbContext.Users.Where(p => q.UserId == p.Id).DefaultIfEmpty()
               where q.TenantId == tenant
               orderby q.Date descending
               select new Query { AuditEvent = q, User = p };

            if (fromDate.HasValue && to.HasValue)
            {
                query = query.Where(q => q.AuditEvent.Date >= fromDate & q.AuditEvent.Date <= to);
            }

            if (limit.HasValue)
            {
                query = query.Take((int)limit);
            }

            return query.AsEnumerable().Select(ToAuditEvent).ToList();
        }

        public int GetCount(int tenant, DateTime? from = null, DateTime? to = null)
        {
            IQueryable<Core.Common.EF.Model.AuditEvent> query = AuditTrailContext.AuditEvents
                .Where(a => a.TenantId == tenant)
                .OrderByDescending(a => a.Date);

            if (from.HasValue && to.HasValue)
            {
                query = query.Where(a => a.Date >= from & a.Date <= to);
            }

            return query.Count();
        }

        private AuditEvent ToAuditEvent(Query query)
        {
            try
            {
                var evt = new AuditEvent
                {
                    Id = query.AuditEvent.Id,
                    IP = query.AuditEvent.Ip,
                    Initiator = query.AuditEvent.Initiator,
                    Browser = query.AuditEvent.Browser,
                    Platform = query.AuditEvent.Platform,
                    Date = query.AuditEvent.Date,
                    TenantId = query.AuditEvent.TenantId,
                    UserId = query.AuditEvent.UserId,
                    Page = query.AuditEvent.Page,
                    Action = query.AuditEvent.Action
                };

                if (query.AuditEvent.Description != null)
                {
                    evt.Description = JsonConvert.DeserializeObject<IList<string>>(
                        query.AuditEvent.Description,
                        new JsonSerializerSettings { DateTimeZoneHandling = DateTimeZoneHandling.Utc });
                }

                evt.Target = MessageTarget.Parse(query.AuditEvent.Target);

                evt.UserName = (query.User.FirstName != null && query.User.LastName != null) ? UserFormatter.GetUserName(query.User.FirstName, query.User.LastName) :
                    evt.UserId == Core.Configuration.Constants.CoreSystem.ID ? AuditReportResource.SystemAccount :
                        evt.UserId == Core.Configuration.Constants.Guest.ID ? AuditReportResource.GuestAccount :
                            evt.Initiator ?? AuditReportResource.UnknownAccount;

                evt.ActionText = AuditActionMapper.GetActionText(evt);
                evt.ActionTypeText = AuditActionMapper.GetActionTypeText(evt);
                evt.Product = AuditActionMapper.GetProductText(evt);
                evt.Module = AuditActionMapper.GetModuleText(evt);

                return evt;
            }
            catch (Exception)
            {
            }

            return null;
        }
    }
}