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using System;
using System.Linq;
using System.Threading.Tasks;
using Jellyfin.Data.Entities;
using Jellyfin.Data.Events;
using Jellyfin.Data.Queries;
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 JellyfinDbProvider _provider;
/// <summary>
/// Initializes a new instance of the <see cref="ActivityManager"/> class.
/// </summary>
/// <param name="provider">The Jellyfin database provider.</param>
public ActivityManager(JellyfinDbProvider provider)
{
_provider = provider;
}
/// <inheritdoc/>
public event EventHandler<GenericEventArgs<ActivityLogEntry>> EntryCreated;
/// <inheritdoc/>
public async Task CreateAsync(ActivityLog entry)
{
await using var dbContext = _provider.CreateContext();
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)
{
await using var dbContext = _provider.CreateContext();
IQueryable<ActivityLog> entries = dbContext.ActivityLogs
.AsQueryable()
.OrderByDescending(entry => entry.DateCreated);
if (query.MinDate.HasValue)
{
entries = entries.Where(entry => entry.DateCreated >= query.MinDate);
}
if (query.HasUserId.HasValue)
{
entries = entries.Where(entry => entry.UserId != Guid.Empty == query.HasUserId.Value );
}
return new QueryResult<ActivityLogEntry>
{
Items = await entries
.Skip(query.StartIndex ?? 0)
.Take(query.Limit ?? 100)
.AsAsyncEnumerable()
.Select(ConvertToOldModel)
.ToListAsync()
.ConfigureAwait(false),
TotalRecordCount = await entries.CountAsync().ConfigureAwait(false)
};
}
/// <inheritdoc />
public async Task CleanAsync(DateTime startDate)
{
await using var dbContext = _provider.CreateContext();
var entries = dbContext.ActivityLogs
.AsQueryable()
.Where(entry => entry.DateCreated <= startDate);
dbContext.RemoveRange(entries);
await dbContext.SaveChangesAsync().ConfigureAwait(false);
}
private static ActivityLogEntry ConvertToOldModel(ActivityLog entry)
{
return new ActivityLogEntry
{
Id = entry.Id,
Name = entry.Name,
Overview = entry.Overview,
ShortOverview = entry.ShortOverview,
Type = entry.Type,
ItemId = entry.ItemId,
UserId = entry.UserId,
Date = entry.DateCreated,
Severity = entry.LogSeverity
};
}
}
}
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