Untested Juice statistics command

KfChatDotNetBot/Commands/JuiceCommand.cs

@@ -46,3 +46,50 @@ public class JuiceCommand : ICommand
         botInstance.SendChatMessage($"You gotta wait {secondsRemaining.Humanize(precision: 2, minUnit: TimeUnit.Second)} for another juicer", true);
     }
 }
+
+public class JuiceStatsCommand : ICommand
+{
+    public List<Regex> Patterns => [
+        new Regex("^juice stats"),
+        new Regex(@"^juice stats (?<top>\d+)$")
+    ];
+    public string HelpText => "Get juice stats!";
+    public bool HideFromHelp => false;
+    public UserRight RequiredRight => UserRight.Guest;
+    public async Task RunCommand(ChatBot botInstance, MessageModel message, UserDbModel user, GroupCollection arguments, CancellationToken ctx)
+    {
+        int top;
+        if (arguments.TryGetValue("top", out var argument))
+        {
+            top = Convert.ToInt32(argument.Value);
+            if (top > 10)
+            {
+                botInstance.SendChatMessage($"'{top}' exceeds the limit on the amount of leeches you can return", true);
+                return;
+            }
+        }
+        else
+        {
+            top = 3;
+        }
+        
+        await using var db = new ApplicationDbContext();
+        var topLeeches = await db.Juicers.GroupBy(u => u.User).Select(l => new
+        {
+            User = l.Key.KfUsername,
+            Amount = l.Sum(a => a.Amount)
+        }).OrderByDescending(x => x.Amount).Take(top).ToListAsync(ctx);
+        var sum = await db.Juicers.SumAsync(s => s.Amount, cancellationToken: ctx);
+        var count = await db.Juicers.CountAsync(ctx);
+        var totalUsers = await db.Juicers.Select(j => j.User).Distinct().CountAsync(ctx);
+        var msg = $"Total Juicers: {count:N0}; Total Handed Out: KKK{sum:C}; Total Users Juiced: {totalUsers:N0}; Average Juicers / User: {count / totalUsers:N}[br]Top Leeches: ";
+        var i = 0;
+        foreach (var leech in topLeeches)
+        {
+            i++;
+            msg += $"{i}. {leech.User} with KKK{leech.Amount:C} juiced; ";
+        }
+
+        botInstance.SendChatMessage(msg, true);
+    }
+}