fix: make AniDB api calls more preservative

after the initial burst of commands to hopefully prevent API bans.

The long delay for UDP has been changed from two times the short delay to three times (4s → 6s), and HTTP has been changed from two times to fifteen times (4s → 30s). To compensate, then the reset period is down from 3m to 2m.

If these numbers are too preservative then we can tweak them again.

Related to #1182

Shoko.Server/Providers/AniDB/AniDBRateLimiter.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Diagnostics;
 using System.Threading;
 using Microsoft.Extensions.Logging;
@@ -22,11 +22,11 @@ public abstract class AniDBRateLimiter
     // An extended amount of time is not defined. Use common sense.
     protected abstract int LongDelay { get; init; }
 
-    // Switch to longer delay after 1 hour
-    protected abstract long shortPeriod { get; init; }
+    // Switch to longer delay after a short period
+    protected abstract long ShortPeriod { get; init; }
 
-    // Switch to shorter delay after 30 minutes of inactivity
-    protected abstract long resetPeriod { get; init; }
+    // Switch to shorter delay after inactivity
+    protected abstract long ResetPeriod { get; init; }
 
     protected AniDBRateLimiter(ILogger logger)
     {
@@ -51,8 +51,8 @@ public T EnsureRate<T>(Func<T> action)
             if (!entered) throw new SynchronizationLockException();
 
             var delay = _requestWatch.ElapsedMilliseconds;
-            if (delay > resetPeriod) ResetRate();
-            var currentDelay = _activeTimeWatch.ElapsedMilliseconds > shortPeriod ? LongDelay : ShortDelay;
+            if (delay > ResetPeriod) ResetRate();
+            var currentDelay = _activeTimeWatch.ElapsedMilliseconds > ShortPeriod ? LongDelay : ShortDelay;
 
             if (delay > currentDelay)
             {

Shoko.Server/Providers/AniDB/HTTP/HttpRateLimiter.cs

@@ -4,10 +4,10 @@ namespace Shoko.Server.Providers.AniDB.HTTP;
 
 public class HttpRateLimiter : AniDBRateLimiter
 {
-    protected override int ShortDelay { get; init; } = 2000;
-    protected override int LongDelay { get; init; } = 4000;
-    protected override long shortPeriod { get; init; } = 1000000;
-    protected override long resetPeriod { get; init; } = 1800000;
+    protected override int ShortDelay { get; init; } = 2_000;
+    protected override int LongDelay { get; init; } = 30_000;
+    protected override long ShortPeriod { get; init; } = 10_000;
+    protected override long ResetPeriod { get; init; } = 120_000;
 
     public HttpRateLimiter(ILogger<HttpRateLimiter> logger) : base(logger)
     {

Shoko.Server/Providers/AniDB/UDP/UDPRateLimiter.cs

@@ -4,10 +4,10 @@ namespace Shoko.Server.Providers.AniDB.UDP;
 
 public class UDPRateLimiter : AniDBRateLimiter
 {
-    protected override int ShortDelay { get; init; } = 2000;
-    protected override int LongDelay { get; init; } = 4000;
-    protected override long shortPeriod { get; init; } = 3600000;
-    protected override long resetPeriod { get; init; } = 1800000;
+    protected override int ShortDelay { get; init; } = 2_000;
+    protected override int LongDelay { get; init; } = 6_000;
+    protected override long ShortPeriod { get; init; } = 10_000;
+    protected override long ResetPeriod { get; init; } = 120_000;
 
     public UDPRateLimiter(ILogger<UDPRateLimiter> logger) : base(logger)
     {