add !donationrecords command to check current records

TPP.Core/Commands/Definitions/DonationCommands.cs

@@ -0,0 +1,43 @@
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using NodaTime;
+using TPP.Model;
+using TPP.Persistence;
+
+namespace TPP.Core.Commands.Definitions;
+
+public class DonationCommands(
+    IDonationRepo donationRepo,
+    IClock clock
+) : ICommandCollection
+{
+    public IEnumerable<Command> Commands =>
+    [
+        new("donationrecords", DonationRecords)
+        {
+            Aliases = ["tiprecords"],
+            Description =
+                "Shows the current donation records. " +
+                "Check !support for how to tip, and get bonus token for every record you break!"
+        }
+    ];
+
+    public async Task<CommandResult> DonationRecords(CommandContext context)
+    {
+        SortedDictionary<DonationRecordBreakType, Donation> recordBreaks =
+            await donationRepo.GetRecordDonations(clock.GetCurrentInstant());
+
+        IEnumerable<string> recordStrings = DonationRecordBreaks.Types
+            .Select(recordBreakType =>
+            {
+                Donation? donation = recordBreaks.GetValueOrDefault(recordBreakType);
+                string x = donation == null
+                    ? "no donation"
+                    : "$" + (donation.Cents / 100f).ToString("F2") + " by " + donation.UserName;
+                return recordBreakType.Name + ": " + x;
+            });
+        string response = "Current donation records: " + string.Join(", ", recordStrings);
+        return new CommandResult { Response = response };
+    }
+}

TPP.Core/Setups.cs

@@ -130,6 +130,7 @@ public static CommandProcessor SetUpCommandProcessor(
             new StaticResponseCommands().Commands,
             new MiscCommands(SystemClock.Instance).Commands,
             new UserCommands(databases.UserRepo).Commands,
+            new DonationCommands(databases.DonationRepo, SystemClock.Instance).Commands,
             new TransmuteCommands(transmuter).Commands,
             new JoinChatCommands(databases.CoStreamChannelsRepo).Commands,
             new OperatorCommands(