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using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Threading.Tasks;
using Jellyfin.Data.Enums;
using Jellyfin.Data.Events;
using Jellyfin.Data.Queries;
using Jellyfin.Database.Implementations;
using Jellyfin.Database.Implementations.Entities;
using Jellyfin.Database.Implementations.Enums;
using Jellyfin.Extensions;
using MediaBrowser.Model.Activity;
using MediaBrowser.Model.Querying;
using Microsoft.EntityFrameworkCore;
namespace Jellyfin.Server.Implementations.Activity;
/// <summary>
/// Manages the storage and retrieval of <see cref="ActivityLog"/> instances.
/// </summary>
public class ActivityManager : IActivityManager
{
private readonly IDbContextFactory<JellyfinDbContext> _provider;
/// <summary>
/// Initializes a new instance of the <see cref="ActivityManager"/> class.
/// </summary>
/// <param name="provider">The Jellyfin database provider.</param>
public ActivityManager(IDbContextFactory<JellyfinDbContext> provider)
{
_provider = provider;
}
/// <inheritdoc/>
public event EventHandler<GenericEventArgs<ActivityLogEntry>>? EntryCreated;
/// <inheritdoc/>
public async Task CreateAsync(ActivityLog entry)
{
var dbContext = await _provider.CreateDbContextAsync().ConfigureAwait(false);
await using (dbContext.ConfigureAwait(false))
{
dbContext.ActivityLogs.Add(entry);
await dbContext.SaveChangesAsync().ConfigureAwait(false);
}
EntryCreated?.Invoke(this, new GenericEventArgs<ActivityLogEntry>(ConvertToOldModel(entry)));
}
/// <inheritdoc/>
public async Task<QueryResult<ActivityLogEntry>> GetPagedResultAsync(ActivityLogQuery query)
{
// TODO allow sorting and filtering by item id. Currently not possible because ActivityLog stores the item id as a string.
var dbContext = await _provider.CreateDbContextAsync().ConfigureAwait(false);
await using (dbContext.ConfigureAwait(false))
{
// TODO switch to LeftJoin in .NET 10.
var entries = from a in dbContext.ActivityLogs
join u in dbContext.Users on a.UserId equals u.Id into ugj
from u in ugj.DefaultIfEmpty()
select new ExpandedActivityLog { ActivityLog = a, Username = u.Username };
if (query.HasUserId is not null)
{
entries = entries.Where(e => e.ActivityLog.UserId.Equals(default) != query.HasUserId.Value);
}
if (query.MinDate is not null)
{
entries = entries.Where(e => e.ActivityLog.DateCreated >= query.MinDate.Value);
}
if (query.MaxDate is not null)
{
entries = entries.Where(e => e.ActivityLog.DateCreated <= query.MaxDate.Value);
}
if (!string.IsNullOrEmpty(query.Name))
{
entries = entries.Where(e => EF.Functions.Like(e.ActivityLog.Name, $"%{query.Name}%"));
}
if (!string.IsNullOrEmpty(query.Overview))
{
entries = entries.Where(e => EF.Functions.Like(e.ActivityLog.Overview, $"%{query.Overview}%"));
}
if (!string.IsNullOrEmpty(query.ShortOverview))
{
entries = entries.Where(e => EF.Functions.Like(e.ActivityLog.ShortOverview, $"%{query.ShortOverview}%"));
}
if (!string.IsNullOrEmpty(query.Type))
{
entries = entries.Where(e => EF.Functions.Like(e.ActivityLog.Type, $"%{query.Type}%"));
}
if (!query.ItemId.IsNullOrEmpty())
{
var itemId = query.ItemId.Value.ToString("N");
entries = entries.Where(e => e.ActivityLog.ItemId == itemId);
}
if (!string.IsNullOrEmpty(query.Username))
{
entries = entries.Where(e => EF.Functions.Like(e.Username, $"%{query.Username}%"));
}
if (query.Severity is not null)
{
entries = entries.Where(e => e.ActivityLog.LogSeverity == query.Severity);
}
return new QueryResult<ActivityLogEntry>(
query.Skip,
await entries.CountAsync().ConfigureAwait(false),
await ApplyOrdering(entries, query.OrderBy)
.Skip(query.Skip ?? 0)
.Take(query.Limit ?? 100)
.Select(entity => new ActivityLogEntry(entity.ActivityLog.Name, entity.ActivityLog.Type, entity.ActivityLog.UserId)
{
Id = entity.ActivityLog.Id,
Overview = entity.ActivityLog.Overview,
ShortOverview = entity.ActivityLog.ShortOverview,
ItemId = entity.ActivityLog.ItemId,
Date = entity.ActivityLog.DateCreated,
Severity = entity.ActivityLog.LogSeverity
})
.ToListAsync()
.ConfigureAwait(false));
}
}
/// <inheritdoc />
public async Task CleanAsync(DateTime startDate)
{
var dbContext = await _provider.CreateDbContextAsync().ConfigureAwait(false);
await using (dbContext.ConfigureAwait(false))
{
await dbContext.ActivityLogs
.Where(entry => entry.DateCreated <= startDate)
.ExecuteDeleteAsync()
.ConfigureAwait(false);
}
}
private static ActivityLogEntry ConvertToOldModel(ActivityLog entry)
{
return new ActivityLogEntry(entry.Name, entry.Type, entry.UserId)
{
Id = entry.Id,
Overview = entry.Overview,
ShortOverview = entry.ShortOverview,
ItemId = entry.ItemId,
Date = entry.DateCreated,
Severity = entry.LogSeverity
};
}
private IOrderedQueryable<ExpandedActivityLog> ApplyOrdering(IQueryable<ExpandedActivityLog> query, IReadOnlyCollection<(ActivityLogSortBy, SortOrder)>? sorting)
{
if (sorting is null || sorting.Count == 0)
{
return query.OrderByDescending(e => e.ActivityLog.DateCreated);
}
IOrderedQueryable<ExpandedActivityLog> ordered = null!;
foreach (var (sortBy, sortOrder) in sorting)
{
var orderBy = MapOrderBy(sortBy);
if (ordered == null)
{
ordered = sortOrder == SortOrder.Ascending
? query.OrderBy(orderBy)
: query.OrderByDescending(orderBy);
}
else
{
ordered = sortOrder == SortOrder.Ascending
? ordered.ThenBy(orderBy)
: ordered.ThenByDescending(orderBy);
}
}
return ordered;
}
private Expression<Func<ExpandedActivityLog, object?>> MapOrderBy(ActivityLogSortBy sortBy)
{
return sortBy switch
{
ActivityLogSortBy.Name => e => e.ActivityLog.Name,
ActivityLogSortBy.Overiew => e => e.ActivityLog.Overview,
ActivityLogSortBy.ShortOverview => e => e.ActivityLog.ShortOverview,
ActivityLogSortBy.Type => e => e.ActivityLog.Type,
ActivityLogSortBy.DateCreated => e => e.ActivityLog.DateCreated,
ActivityLogSortBy.Username => e => e.Username,
ActivityLogSortBy.LogSeverity => e => e.ActivityLog.LogSeverity,
_ => throw new ArgumentOutOfRangeException(nameof(sortBy), sortBy, "Unhandled ActivityLogSortBy")
};
}
private class ExpandedActivityLog
{
public ActivityLog ActivityLog { get; set; } = null!;
public string? Username { get; set; }
}
}
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