[reputation] Add rating.

Core/Data/IReputationEntity.cs

@@ -0,0 +1,8 @@
+namespace Kruzya.TelegramBot.Core.Data;
+
+public interface IReputationEntity
+{
+    public long UserId { get; set; }
+    public long ChatId { get; set; }
+    public double Value { get; set; }
+}

Core/Service/IReputation.cs

@@ -1,4 +1,6 @@
-using System.Threading.Tasks;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using Kruzya.TelegramBot.Core.Data;
 using Telegram.Bot.Types;
 
 namespace Kruzya.TelegramBot.Core.Service
@@ -9,5 +11,6 @@ namespace Kruzya.TelegramBot.Core.Service
         public Task<double> SetUserReputationAsync(Chat chat, User user, double value);
         public Task<double> GetReputationDiffAsync(Chat chat, User sender, User receiver);
         public Task IncrementReputationAsync(Chat chat, User user, double diff);
+        public Task<IEnumerable<IReputationEntity>> GetChatRatingAsync(Chat chat, int limit = 10, int offset = 0);
     }
 }

Core/Service/UserService.cs

@@ -3,7 +3,12 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Threading.Tasks;
+using BotFramework.Abstractions;
+using Kruzya.TelegramBot.Core.Cache;
 using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Logging;
+using Telegram.Bot;
 using Telegram.Bot.Types;
 
 namespace Kruzya.TelegramBot.Core.Service
@@ -11,10 +16,17 @@ namespace Kruzya.TelegramBot.Core.Service
     public class UserService
     {
         private readonly List<long> _superUsers;
-
         private readonly Dictionary<long, string> _statusMap;
+        private readonly ICacheStorage<long, User> _userCache;
+        private readonly ITelegramBotClient _bot;
+        private readonly ILogger<UserService> _logger;
 
-        public UserService(IConfiguration configuration)
+
+        public UserService(
+            IConfiguration configuration, 
+            IBotInstance bot, 
+            ICacheStorage<long, User> userCache,
+            ILogger<UserService> logger)
         {
             _superUsers = configuration.GetSection("SuperUsers")
                 .GetChildren()
@@ -24,6 +36,41 @@ namespace Kruzya.TelegramBot.Core.Service
             _statusMap = configuration.GetSection("CustomMemberStatus")
                 .GetChildren()
                 .ToDictionary(x => Convert.ToInt64(x.Key), x => x.Value);
+
+            _userCache = userCache;
+            _bot = bot.BotClient;
+            _logger = logger;
+        }
+
+        public async Task<User> GetUser(long userId, long chatId, bool bypassCache = false)
+        {
+            if (bypassCache || !_userCache.TryGetValue(userId, out var user))
+            {
+                if (bypassCache)
+                {
+                    _logger.LogDebug("Bypassing cache.");
+                }
+                else
+                {
+                    _logger.LogDebug("User {UserId} is not found in cache. Fetching from Telegram API.", userId);
+                }
+
+                user = await GetUserByChat(chatId, userId);
+                CacheUser(user);
+            }
+         
+            return user;
+        }
+
+        private void CacheUser(User user)
+        {
+            // TODO: config entry for TTL
+            _userCache.SetValue(user.Id, user, Convert.ToInt32(TimeSpan.FromHours(1).TotalSeconds));
+        }
+        
+        private async Task<User> GetUserByChat(long chatId, long userId)
+        {
+            return (await _bot.GetChatMemberAsync(chatId, userId)).User;
         }
 
         public bool IsUserSuper(User user)

modules/Reputation/Data/UserReputation.cs

@@ -1,10 +1,10 @@
-namespace West.TelegramBot.Reputation.Data;
+using Kruzya.TelegramBot.Core.Data;
 
-public class UserReputation
+namespace West.TelegramBot.Reputation.Data;
+
+public class UserReputation : IReputationEntity
 {
     public long UserId { get; set; }
-
     public long ChatId { get; set; }
-
     public double Value { get; set; }
 }

modules/Reputation/Handler/Reputation.cs

@@ -17,7 +17,7 @@ public class Reputation : CommonHandler
     private readonly UserService _userService;
     private readonly ILogger _logger;
     private readonly IReputation _reputationService;
-        
+
     private static readonly List<string> RepUpChars = new()
     {
         "+",
@@ -43,8 +43,7 @@ public class Reputation : CommonHandler
         CoreContext db, 
         UserService userService, 
         IReputation reputationService,
-        ILogger<Reputation> logger
+        ILogger<Reputation> logger) : base(db)
-        ) : base(db)
     {
         _reputationService = reputationService;
         _userService = userService;
@@ -129,6 +128,22 @@ public class Reputation : CommonHandler
         );
     }
 
+    [Command(InChat.Public, "top", CommandParseMode.Both)]
+    public async Task HandleTop()
+    {
+        var msg = new HtmlString();
+        msg.TextBr("Топ репутации чата: ");
+        var i = 1;
+        foreach (var rep in await _reputationService.GetChatRatingAsync(Chat))
+        {
+            var user = await _userService.GetUser(rep.UserId, rep.ChatId);
+            msg.Text($"{i}. ").UserMention(user).Text($" ({rep.Value})").Br();
+            i++;
+        }
+
+        await Bot.SendHtmlStringAsync(Chat, msg);
+    }
+
     private async Task<double> GetUserReputation(User user)
     {
         return await _reputationService.GetUserReputationAsync(Chat, user);

modules/Reputation/Service/ReputationService.cs

@@ -1,4 +1,5 @@
-using Kruzya.TelegramBot.Core.Extensions;
+using Kruzya.TelegramBot.Core.Data;
+using Kruzya.TelegramBot.Core.Extensions;
 using Kruzya.TelegramBot.Core.Service;
 using Microsoft.EntityFrameworkCore;
 using Telegram.Bot.Types;
@@ -54,6 +55,16 @@ public class ReputationService : IReputation
         return Math.Round(senderValue == 0 ? 1 : Math.Sqrt(senderValue), 2);
     }
 
+    public async Task<IEnumerable<IReputationEntity>> GetChatRatingAsync(Chat chat, int limit = 10, int offset = 0)
+    {
+        return await _reputationContext.UserReputation
+            .Where(r => r.ChatId == chat.Id && r.Value != 0D)
+            .OrderByDescending(r => r.Value)
+            .Skip(offset)
+            .Take(limit)
+            .ToListAsync();
+    }
+
     private async Task<UserReputation?> FindUserReputation(Chat chat, User user)
     {
         return await _reputationContext.UserReputation.SingleOrDefaultAsync(