greyn/vassago
greyn/vassago
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cache all the channels.

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see #25 - now after restarts, we can still reply and message, etc.
This commit is contained in:
adam 2025-06-04 15:34:17 -04:00
parent 0ff3902fd0
commit 9ad7520c61
3 changed files with 32 additions and 15 deletions
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1
Models/Channel.cs
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@ -20,6 +20,7 @@ public class Channel
public List<Channel> SubChannels { get; set; } public List<Channel> SubChannels { get; set; }
[JsonIgnore] [JsonIgnore]
public Channel ParentChannel { get; set; } public Channel ParentChannel { get; set; }
public Guid? ParentChannelId { get; set; }
public string Protocol { get; set; } public string Protocol { get; set; }
[DeleteBehavior(DeleteBehavior.Cascade)] [DeleteBehavior(DeleteBehavior.Cascade)]
public List<Message> Messages { get; set; } public List<Message> Messages { get; set; }

44
Rememberer.cs
View File

@ -8,6 +8,25 @@ public static class Rememberer
{ {
private static readonly SemaphoreSlim dbAccessSemaphore = new(1, 1); private static readonly SemaphoreSlim dbAccessSemaphore = new(1, 1);
private static readonly ChattingContext db = new(); private static readonly ChattingContext db = new();
private static List<Channel> channels;
private static bool channelCacheDirty = true;
private static void cacheChannels()
{
dbAccessSemaphore.Wait();
channels = db.Channels.ToList();
foreach (Channel ch in channels)
{
if (ch.ParentChannelId != null)
{
ch.ParentChannel = channels.FirstOrDefault(c => c.Id == ch.ParentChannelId);
ch.ParentChannel.SubChannels ??= [];
ch.ParentChannel.SubChannels.Add(ch);
}
}
channelCacheDirty = false;
dbAccessSemaphore.Release();
}
public static Account SearchAccount(Expression<Func<Account, bool>> predicate) public static Account SearchAccount(Expression<Func<Account, bool>> predicate)
{ {
@ -33,13 +52,11 @@ public static class Rememberer
dbAccessSemaphore.Release(); dbAccessSemaphore.Release();
return toReturn; return toReturn;
} }
public static Channel SearchChannel(Expression<Func<Channel, bool>> predicate) public static Channel SearchChannel(Func<Channel, bool> predicate)
{ {
Channel toReturn; if(channelCacheDirty)
dbAccessSemaphore.Wait(); Task.Run(() => cacheChannels()).Wait();
toReturn = db.Channels.FirstOrDefault(predicate); return channels.FirstOrDefault(predicate);
dbAccessSemaphore.Release();
return toReturn;
} }
public static Message SearchMessage(Expression<Func<Message, bool>> predicate) public static Message SearchMessage(Expression<Func<Message, bool>> predicate)
{ {
@ -75,10 +92,14 @@ public static class Rememberer
} }
public static Channel RememberChannel(Channel toRemember) public static Channel RememberChannel(Channel toRemember)
{ {
if(channelCacheDirty)
Task.Run(() => cacheChannels()).Wait(); //so we always do 2 db trips?
dbAccessSemaphore.Wait(); dbAccessSemaphore.Wait();
db.Update(toRemember); db.Update(toRemember);
db.SaveChanges(); db.SaveChanges();
dbAccessSemaphore.Release(); dbAccessSemaphore.Release();
channelCacheDirty = true;
cacheChannels();
return toRemember; return toRemember;
} }
public static void RememberMessage(Message toRemember) public static void RememberMessage(Message toRemember)
@ -202,14 +223,9 @@ public static class Rememberer
} }
public static Channel ChannelDetail(Guid Id) public static Channel ChannelDetail(Guid Id)
{ {
Channel toReturn; if(channelCacheDirty)
dbAccessSemaphore.Wait(); Task.Run(() => cacheChannels()).Wait();
toReturn = db.Channels.Find(Id); return channels.Find(c => c.Id == Id);
dbAccessSemaphore.Release();
return toReturn;
// .Include(u => u.SubChannels)
// .Include(u => u.Users)
// .Include(u => u.ParentChannel);
} }
public static Message MessageDetail(Guid Id) public static Message MessageDetail(Guid Id)
{ {