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#pragma warning disable CS1591
using System;
using System.Collections.Concurrent;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Threading;
using Jellyfin.Data.Events;
using Jellyfin.LiveTv.Recordings;
using MediaBrowser.Common.Configuration;
using MediaBrowser.Controller.LiveTv;
using MediaBrowser.Model.LiveTv;
using Microsoft.Extensions.Logging;
namespace Jellyfin.LiveTv.Timers
{
public class TimerManager : ItemDataProvider<TimerInfo>
{
private readonly ConcurrentDictionary<string, Timer> _timers = new(StringComparer.OrdinalIgnoreCase);
public TimerManager(ILogger<TimerManager> logger, IConfigurationManager config)
: base(
logger,
Path.Combine(config.CommonApplicationPaths.DataPath, "livetv/timers.json"),
(r1, r2) => string.Equals(r1.Id, r2.Id, StringComparison.OrdinalIgnoreCase))
{
}
public event EventHandler<GenericEventArgs<TimerInfo>>? TimerFired;
public void RestartTimers()
{
StopTimers();
foreach (var item in GetAll())
{
AddOrUpdateSystemTimer(item);
}
}
public void StopTimers()
{
foreach (var pair in _timers.ToList())
{
pair.Value.Dispose();
}
_timers.Clear();
}
public override void Delete(TimerInfo item)
{
base.Delete(item);
StopTimer(item);
}
public override void Update(TimerInfo item)
{
base.Update(item);
AddOrUpdateSystemTimer(item);
}
public void AddOrUpdate(TimerInfo item, bool resetTimer)
{
if (resetTimer)
{
AddOrUpdate(item);
return;
}
base.AddOrUpdate(item);
}
public override void AddOrUpdate(TimerInfo item)
{
base.AddOrUpdate(item);
AddOrUpdateSystemTimer(item);
}
public override void Add(TimerInfo item)
{
ArgumentException.ThrowIfNullOrEmpty(item.Id);
base.Add(item);
AddOrUpdateSystemTimer(item);
}
private void AddOrUpdateSystemTimer(TimerInfo item)
{
StopTimer(item);
if (item.Status is RecordingStatus.Completed or RecordingStatus.Cancelled)
{
return;
}
var startDate = item.StartDate.AddSeconds(-item.PrePaddingSeconds);
var now = DateTime.UtcNow;
if (startDate < now)
{
TimerFired?.Invoke(this, new GenericEventArgs<TimerInfo>(item));
return;
}
var dueTime = startDate - now;
StartTimer(item, dueTime);
}
private void StartTimer(TimerInfo item, TimeSpan dueTime)
{
var timer = new Timer(TimerCallback, item.Id, dueTime, TimeSpan.Zero);
if (_timers.TryAdd(item.Id, timer))
{
if (item.IsSeries)
{
Logger.LogInformation(
"Creating recording timer for {Id}, {Name} {SeasonNumber}x{EpisodeNumber:D2} on channel {ChannelId}. Timer will fire in {Minutes} minutes at {StartDate}",
item.Id,
item.Name,
item.SeasonNumber,
item.EpisodeNumber,
item.ChannelId,
dueTime.TotalMinutes.ToString(CultureInfo.InvariantCulture),
item.StartDate);
}
else
{
Logger.LogInformation(
"Creating recording timer for {Id}, {Name} on channel {ChannelId}. Timer will fire in {Minutes} minutes at {StartDate}",
item.Id,
item.Name,
item.ChannelId,
dueTime.TotalMinutes.ToString(CultureInfo.InvariantCulture),
item.StartDate);
}
}
else
{
timer.Dispose();
Logger.LogWarning("Timer already exists for item {Id}", item.Id);
}
}
private void StopTimer(TimerInfo item)
{
if (_timers.TryRemove(item.Id, out var timer))
{
timer.Dispose();
}
}
private void TimerCallback(object? state)
{
var timerId = (string?)state ?? throw new ArgumentNullException(nameof(state));
var timer = GetAll().FirstOrDefault(i => string.Equals(i.Id, timerId, StringComparison.OrdinalIgnoreCase));
if (timer is not null)
{
TimerFired?.Invoke(this, new GenericEventArgs<TimerInfo>(timer));
}
}
public TimerInfo? GetTimer(string id)
=> GetAll().FirstOrDefault(r => string.Equals(r.Id, id, StringComparison.OrdinalIgnoreCase));
public TimerInfo? GetTimerByProgramId(string programId)
=> GetAll().FirstOrDefault(r => string.Equals(r.ProgramId, programId, StringComparison.OrdinalIgnoreCase));
}
}
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