Files
Swarm/DysonNetwork.Pass/Storage/Handlers/FlushBufferService.cs

105 lines
3.0 KiB
C#

using System.Collections.Concurrent;
using DysonNetwork.Pass.Features.Account;
using DysonNetwork.Common.Models;
using Microsoft.EntityFrameworkCore;
using NodaTime;
namespace DysonNetwork.Pass.Storage.Handlers;
public class FlushBufferService
{
private readonly ConcurrentQueue<object> _buffer = new();
private readonly IServiceScopeFactory _scopeFactory;
private readonly ILogger<FlushBufferService> _logger;
private Timer? _timer;
public FlushBufferService(IServiceScopeFactory scopeFactory, ILogger<FlushBufferService> logger)
{
_scopeFactory = scopeFactory;
_logger = logger;
_timer = new Timer(FlushBuffer, null, TimeSpan.Zero, TimeSpan.FromSeconds(5));
}
public void Enqueue(object item)
{
_buffer.Enqueue(item);
}
private async void FlushBuffer(object? state)
{
if (_buffer.IsEmpty) return;
using var scope = _scopeFactory.CreateScope();
var db = scope.ServiceProvider.GetRequiredService<Data.PassDatabase>();
var itemsToProcess = new List<object>();
while (_buffer.TryDequeue(out var item))
{
itemsToProcess.Add(item);
}
if (itemsToProcess.Count == 0) return;
_logger.LogInformation("Flushing {Count} items from buffer.", itemsToProcess.Count);
foreach (var item in itemsToProcess)
{
switch (item)
{
case LastActiveInfo lastActiveInfo:
await HandleLastActiveInfo(db, lastActiveInfo);
break;
case ActionLog actionLog:
await HandleActionLog(db, actionLog);
break;
default:
_logger.LogWarning("Unknown item type in buffer: {Type}", item.GetType().Name);
break;
}
}
try
{
await db.SaveChangesAsync();
}
catch (Exception ex)
{
_logger.LogError(ex, "Error saving changes during buffer flush.");
}
}
private async Task HandleLastActiveInfo(Data.PassDatabase db, LastActiveInfo info)
{
var profile = await db.AccountProfiles.FirstOrDefaultAsync(p => p.AccountId == info.Account.Id);
if (profile != null)
{
profile.LastSeenAt = info.SeenAt;
db.AccountProfiles.Update(profile);
}
var session = await db.AuthSessions.FirstOrDefaultAsync(s => s.Id == info.Session.Id);
if (session != null)
{
session.LastGrantedAt = info.SeenAt;
db.AuthSessions.Update(session);
}
}
private async Task HandleActionLog(Data.PassDatabase db, ActionLog log)
{
db.ActionLogs.Add(log);
}
public void Dispose()
{
_timer?.Dispose();
_timer = null;
}
}
public class LastActiveInfo
{
public Account Account { get; set; } = null!;
public AuthSession Session { get; set; } = null!;
public Instant SeenAt { get; set; }
}