Use plan TimeoutMultiplier for ratelimit costs

JetHerald/Contracts/IDb.cs

@@ -2,14 +2,18 @@
 
 public class Topic
 {
-    public uint TopicId { get; set; }
+    public uint TopicId { get; private set; }
     public uint CreatorId { get; set; }
     public string Name { get; set; }
     public string Description { get; set; }
     public string ReadToken { get; set; }
     public string WriteToken { get; set; }
 
-    public NamespacedId? Sub { get; set; }
+
+    // joined
+    public NamespacedId? Sub { get; private set; }
+    public string? Login { get; private set; }
+    public double TimeoutMultiplier { get; private set; } = 1;
 
     public override string ToString()
         => Name == Description ? Name : $"{Name}: {Description}";

JetHerald/Controllers/Api/HeartbeatController.cs

@@ -82,7 +82,7 @@ public class HeartbeatController : ControllerBase
         if (wasBeating == 0)
             await Herald.BroadcastMessageRaw(t.TopicId, $"!{t.Description}!:\nHeart \"{heart}\" has started beating at {DateTime.UtcNow:O}");
 
-        Timeouts.ApplyCost(t.TopicId, Config.HeartbeatCost);
+        Timeouts.ApplyCost(t.TopicId, Config.HeartbeatCost * t.TimeoutMultiplier);
 
         return new OkResult();
     }

JetHerald/Controllers/Api/ReportController.cs

@@ -68,7 +68,7 @@ public class ReportController : ControllerBase
 
         await Herald.BroadcastMessageRaw(t.TopicId, $"|{t.Description}|:\n{args.Message}");
 
-        Timeouts.ApplyCost(t.TopicId, Config.ReportCost);
+        Timeouts.ApplyCost(t.TopicId, Config.ReportCost * t.TimeoutMultiplier);
 
         return new OkResult();
     }

JetHerald/Services/DbContext.cs

@@ -101,7 +101,11 @@ public class DbContext : IDisposable
 
     public Task<Topic> GetTopic(string name)
         => Tran.QuerySingleOrDefaultAsync<Topic>(
-            "SELECT * FROM topic WHERE Name = @name",
+            @"SELECT t.*, u.Login, p.TimeoutMultiplier
+	        FROM `topic` t
+	        JOIN `user` u ON t.CreatorId = u.UserId
+            JOIN `plan` p ON u.PlanId = p.PlanId
+            WHERE t.Name = @name;",
             new { name });
 
     public Task<int> DeleteTopic(string name, uint userId)

JetHerald/Services/LeakyBucket.cs

@@ -21,8 +21,9 @@ public class LeakyBucket
         return time > debtLimit;
     }
 
-    public void ApplyCost(uint key, int cost)
+    public void ApplyCost(uint key, double cost)
     {
+        if (cost <= 0) return;
         expiryDates.AddOrUpdate(key,
             key => DateTime.UtcNow.AddSeconds(cost),
             (key, oldDebt) =>