Files
LightlessClient/LightlessSync/Services/BroadcastService.cs
2025-09-24 05:53:22 +09:00

375 lines
14 KiB
C#

using LightlessSync.API.Dto.Group;
using LightlessSync.API.Dto.User;
using LightlessSync.LightlessConfiguration;
using LightlessSync.Services.Mediator;
using LightlessSync.Utils;
using LightlessSync.WebAPI;
using LightlessSync.WebAPI.SignalR;
using Microsoft.AspNetCore.SignalR;
using Microsoft.AspNetCore.SignalR.Client;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
namespace LightlessSync.Services;
public class BroadcastService : IHostedService, IMediatorSubscriber
{
private readonly ILogger<BroadcastService> _logger;
private readonly ApiController _apiController;
private readonly LightlessMediator _mediator;
private readonly HubFactory _hubFactory;
private readonly LightlessConfigService _config;
private readonly DalamudUtilService _dalamudUtil;
public LightlessMediator Mediator => _mediator;
public bool IsLightFinderAvailable { get; private set; } = true;
public bool IsBroadcasting => _config.Current.BroadcastEnabled;
private bool _syncedOnStartup = false;
private bool _waitingForTtlFetch = false;
private TimeSpan? _remainingTtl = null;
private DateTime _lastTtlCheck = DateTime.MinValue;
private DateTime _lastForcedDisableTime = DateTime.MinValue;
private static readonly TimeSpan DisableCooldown = TimeSpan.FromSeconds(5);
public TimeSpan? RemainingTtl => _remainingTtl;
public TimeSpan? RemainingCooldown
{
get
{
var elapsed = DateTime.UtcNow - _lastForcedDisableTime;
if (elapsed >= DisableCooldown) return null;
return DisableCooldown - elapsed;
}
}
public BroadcastService(ILogger<BroadcastService> logger, LightlessMediator mediator, HubFactory hubFactory, LightlessConfigService config, DalamudUtilService dalamudUtil, ApiController apiController)
{
_logger = logger;
_mediator = mediator;
_hubFactory = hubFactory;
_config = config;
_dalamudUtil = dalamudUtil;
_apiController = apiController;
}
private async Task RequireConnectionAsync(string context, Func<Task> action)
{
if (!_apiController.IsConnected)
{
_logger.LogDebug($"{context} skipped, not connected");
return;
}
await action().ConfigureAwait(false);
}
public async Task StartAsync(CancellationToken cancellationToken)
{
_mediator.Subscribe<EnableBroadcastMessage>(this, OnEnableBroadcast);
_mediator.Subscribe<BroadcastStatusChangedMessage>(this, OnBroadcastStatusChanged);
_mediator.Subscribe<PriorityFrameworkUpdateMessage>(this, OnTick);
_apiController.OnConnected += () => _ = CheckLightfinderSupportAsync(cancellationToken);
_ = CheckLightfinderSupportAsync(cancellationToken);
}
public Task StopAsync(CancellationToken cancellationToken)
{
_mediator.UnsubscribeAll(this);
_apiController.OnConnected -= () => _ = CheckLightfinderSupportAsync(cancellationToken);
return Task.CompletedTask;
}
// need to rework this, this is cooked
private async Task CheckLightfinderSupportAsync(CancellationToken cancellationToken)
{
try
{
while (!_apiController.IsConnected && !cancellationToken.IsCancellationRequested)
await Task.Delay(250, cancellationToken).ConfigureAwait(false);
if (cancellationToken.IsCancellationRequested)
return;
var hub = _hubFactory.GetOrCreate(CancellationToken.None);
var dummy = "0".PadLeft(64, '0');
await hub.InvokeAsync<BroadcastStatusInfoDto?>("IsUserBroadcasting", dummy, cancellationToken);
await hub.InvokeAsync("SetBroadcastStatus", dummy, true, null, cancellationToken);
await hub.InvokeAsync<TimeSpan?>("GetBroadcastTtl", dummy, cancellationToken);
await hub.InvokeAsync<Dictionary<string, BroadcastStatusInfoDto?>>("AreUsersBroadcasting", new[] { dummy }, cancellationToken);
IsLightFinderAvailable = true;
_logger.LogInformation("Lightfinder is available.");
}
catch (HubException ex) when (ex.Message.Contains("Method does not exist"))
{
_logger.LogWarning("Lightfinder unavailable: required method missing.");
IsLightFinderAvailable = false;
_config.Current.BroadcastEnabled = false;
_config.Current.BroadcastTtl = DateTime.MinValue;
_config.Save();
_mediator.Publish(new BroadcastStatusChangedMessage(false, null));
}
catch (OperationCanceledException)
{
_logger.LogInformation("Lightfinder check was canceled.");
}
catch (Exception ex)
{
_logger.LogWarning(ex, "Lightfinder check failed.");
IsLightFinderAvailable = false;
_config.Current.BroadcastEnabled = false;
_config.Current.BroadcastTtl = DateTime.MinValue;
_config.Save();
_mediator.Publish(new BroadcastStatusChangedMessage(false, null));
}
}
private void OnEnableBroadcast(EnableBroadcastMessage msg)
{
_ = RequireConnectionAsync(nameof(OnEnableBroadcast), async () =>
{
try
{
GroupBroadcastRequestDto? groupDto = null;
if (_config.Current.SyncshellFinderEnabled && _config.Current.SelectedFinderSyncshell != null)
{
groupDto = new GroupBroadcastRequestDto
{
HashedCID = msg.HashedCid,
GID = _config.Current.SelectedFinderSyncshell,
Enabled = msg.Enabled,
};
}
_ = _apiController.SetBroadcastStatus(msg.HashedCid, msg.Enabled, groupDto).ConfigureAwait(false);
_logger.LogInformation("Broadcast {Status} for {Cid}", msg.Enabled ? "enabled" : "disabled", msg.HashedCid);
if (!msg.Enabled)
{
_config.Current.BroadcastEnabled = false;
_config.Current.BroadcastTtl = DateTime.MinValue;
_config.Save();
_mediator.Publish(new BroadcastStatusChangedMessage(false, null));
return;
}
_waitingForTtlFetch = true;
var ttl = await GetBroadcastTtlAsync(msg.HashedCid).ConfigureAwait(false);
if (ttl is { } remaining && remaining > TimeSpan.Zero)
{
_config.Current.BroadcastTtl = DateTime.UtcNow + remaining;
_config.Current.BroadcastEnabled = true;
_config.Save();
_logger.LogInformation("Fetched TTL from server: {TTL}", remaining);
_mediator.Publish(new BroadcastStatusChangedMessage(true, remaining));
}
else
{
_logger.LogWarning("No valid TTL returned after enabling broadcast. Disabling.");
_config.Current.BroadcastEnabled = false;
_config.Current.BroadcastTtl = DateTime.MinValue;
_config.Save();
_mediator.Publish(new BroadcastStatusChangedMessage(false, null));
}
_waitingForTtlFetch = false;
}
catch (Exception ex)
{
_logger.LogError(ex, "Failed to toggle broadcast for {Cid}", msg.HashedCid);
_waitingForTtlFetch = false;
}
});
}
private void OnBroadcastStatusChanged(BroadcastStatusChangedMessage msg)
{
_config.Current.BroadcastEnabled = msg.Enabled;
_config.Save();
}
public async Task<bool> CheckIfBroadcastingAsync(string targetCid)
{
bool result = false;
await RequireConnectionAsync(nameof(CheckIfBroadcastingAsync), async () =>
{
try
{
_logger.LogInformation("[BroadcastCheck] Checking CID: {cid}", targetCid);
var info = await _apiController.IsUserBroadcasting(targetCid).ConfigureAwait(false);
result = info?.TTL > TimeSpan.Zero;
_logger.LogInformation("[BroadcastCheck] Result for {cid}: {result} (TTL: {ttl}, GID: {gid})", targetCid, result, info?.TTL, info?.GID);
}
catch (Exception ex)
{
_logger.LogWarning(ex, "Failed to check broadcast status for {cid}", targetCid);
}
}).ConfigureAwait(false);
return result;
}
public async Task<TimeSpan?> GetBroadcastTtlAsync(string cid)
{
TimeSpan? ttl = null;
await RequireConnectionAsync(nameof(GetBroadcastTtlAsync), async () => {
try
{
ttl = await _apiController.GetBroadcastTtl(cid).ConfigureAwait(false);
}
catch (Exception ex)
{
_logger.LogWarning(ex, "Failed to fetch broadcast TTL for {cid}", cid);
}
}).ConfigureAwait(false);
return ttl;
}
public async Task<Dictionary<string, BroadcastStatusInfoDto?>> AreUsersBroadcastingAsync(List<string> hashedCids)
{
Dictionary<string, BroadcastStatusInfoDto?> result = new();
await RequireConnectionAsync(nameof(AreUsersBroadcastingAsync), async () =>
{
try
{
var batch = await _apiController.AreUsersBroadcasting(hashedCids).ConfigureAwait(false);
if (batch?.Results != null)
{
foreach (var kv in batch.Results)
result[kv.Key] = kv.Value;
}
_logger.LogInformation("Batch broadcast status check complete for {Count} CIDs", hashedCids.Count);
}
catch (Exception ex)
{
_logger.LogWarning(ex, "Failed to batch check broadcast status");
}
}).ConfigureAwait(false);
return result;
}
public async void ToggleBroadcast()
{
if (!IsLightFinderAvailable)
{
_logger.LogWarning("ToggleBroadcast - Lightfinder is not available.");
return;
}
await RequireConnectionAsync(nameof(ToggleBroadcast), async () =>
{
var cooldown = RemainingCooldown;
if (!_config.Current.BroadcastEnabled && cooldown is { } cd && cd > TimeSpan.Zero)
{
_logger.LogWarning("Cooldown active. Must wait {Remaining}s before re-enabling.", cd.TotalSeconds);
return;
}
var hashedCid = (await _dalamudUtil.GetCIDAsync().ConfigureAwait(false)).ToString().GetHash256();
try
{
var isCurrentlyBroadcasting = await CheckIfBroadcastingAsync(hashedCid).ConfigureAwait(false);
var newStatus = !isCurrentlyBroadcasting;
if (!newStatus)
{
_lastForcedDisableTime = DateTime.UtcNow;
_logger.LogInformation("Manual disable: cooldown timer started.");
}
_logger.LogInformation("Toggling broadcast. Server currently broadcasting: {ServerStatus}, setting to: {NewStatus}", isCurrentlyBroadcasting, newStatus);
_mediator.Publish(new EnableBroadcastMessage(hashedCid, newStatus));
}
catch (Exception ex)
{
_logger.LogError(ex, "Failed to determine current broadcast status for toggle");
}
}).ConfigureAwait(false);
}
private async void OnTick(PriorityFrameworkUpdateMessage _)
{
if (!IsLightFinderAvailable)
return;
if (_config?.Current == null)
return;
if ((DateTime.UtcNow - _lastTtlCheck).TotalSeconds < 1)
return;
_lastTtlCheck = DateTime.UtcNow;
await RequireConnectionAsync(nameof(OnTick), async () => {
if (!_syncedOnStartup && _config.Current.BroadcastEnabled)
{
_syncedOnStartup = true;
try
{
var hashedCid = (await _dalamudUtil.GetCIDAsync().ConfigureAwait(false)).ToString().GetHash256();
var ttl = await GetBroadcastTtlAsync(hashedCid).ConfigureAwait(false);
if (ttl is { }
remaining && remaining > TimeSpan.Zero)
{
_config.Current.BroadcastTtl = DateTime.UtcNow + remaining;
_config.Current.BroadcastEnabled = true;
_config.Save();
_logger.LogInformation("Refreshed broadcast TTL from server on first OnTick: {TTL}", remaining);
}
else
{
_logger.LogWarning("No valid TTL found on OnTick. Disabling broadcast state.");
_config.Current.BroadcastEnabled = false;
_config.Current.BroadcastTtl = DateTime.MinValue;
_config.Save();
_mediator.Publish(new BroadcastStatusChangedMessage(false, null));
}
}
catch (Exception ex)
{
_logger.LogError(ex, "Failed to refresh TTL in OnTick");
}
}
if (_config.Current.BroadcastEnabled)
{
if (_waitingForTtlFetch)
{
_logger.LogDebug("OnTick skipped: waiting for TTL fetch");
return;
}
var expiry = _config.Current.BroadcastTtl;
var remaining = expiry - DateTime.UtcNow;
_remainingTtl = remaining > TimeSpan.Zero ? remaining : null;
if (_remainingTtl == null)
{
_logger.LogInformation("Broadcast TTL expired. Disabling broadcast locally.");
_config.Current.BroadcastEnabled = false;
_config.Current.BroadcastTtl = DateTime.MinValue;
_config.Save();
_mediator.Publish(new BroadcastStatusChangedMessage(false, null));
}
}
else
{
_remainingTtl = null;
}
}).ConfigureAwait(false);
}
}