Begin work on leaderboard

Gangs.sln

@@ -30,6 +30,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "EcoRewards", "src\EcoReward
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Raffle", "src\CS2\Raffle\Raffle.csproj", "{05B36B8C-F430-411B-9B8D-61EB14D5E5FC}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Leaderboard", "Leaderboard\Leaderboard.csproj", "{C45C866D-0F51-4C1A-80FD-BD2E6AB25EF5}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -84,6 +86,10 @@ Global
 		{05B36B8C-F430-411B-9B8D-61EB14D5E5FC}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{05B36B8C-F430-411B-9B8D-61EB14D5E5FC}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{05B36B8C-F430-411B-9B8D-61EB14D5E5FC}.Release|Any CPU.Build.0 = Release|Any CPU
+		{C45C866D-0F51-4C1A-80FD-BD2E6AB25EF5}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{C45C866D-0F51-4C1A-80FD-BD2E6AB25EF5}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{C45C866D-0F51-4C1A-80FD-BD2E6AB25EF5}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{C45C866D-0F51-4C1A-80FD-BD2E6AB25EF5}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(NestedProjects) = preSolution
 		{74B15261-4B12-4EF6-859A-E46B315E7DD3} = {3AB7703F-880F-4A41-96EE-B891FA888C65}
@@ -97,5 +103,6 @@ Global
 		{B850CFA3-AFE8-4012-8BC2-9A4BC12B9748} = {AC07CD29-5C9D-4AD1-99C7-01DABAB8D0EC}
 		{253C7948-3411-4860-BDDE-B1CA23FCE4DC} = {AC07CD29-5C9D-4AD1-99C7-01DABAB8D0EC}
 		{05B36B8C-F430-411B-9B8D-61EB14D5E5FC} = {AC07CD29-5C9D-4AD1-99C7-01DABAB8D0EC}
+		{C45C866D-0F51-4C1A-80FD-BD2E6AB25EF5} = {AC07CD29-5C9D-4AD1-99C7-01DABAB8D0EC}
 	EndGlobalSection
 EndGlobal

Leaderboard/ILeaderboard.cs

@@ -0,0 +1,5 @@
+namespace Leaderboard;
+
+public interface ILeaderboard {
+  Task<IEnumerable<(int, double)>> GetTopGangs(int limit = 10, int offset = 0);
+}

Leaderboard/Leaderboard.csproj

@@ -0,0 +1,19 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <TargetFramework>net8.0</TargetFramework>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <Nullable>enable</Nullable>
+    </PropertyGroup>
+
+    <ItemGroup>
+      <ProjectReference Include="..\src\GangsAPI\GangsAPI.csproj" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <Reference Include="MySqlConnector">
+        <HintPath>..\..\..\..\.nuget\packages\mysqlconnector\2.3.7\lib\net8.0\MySqlConnector.dll</HintPath>
+      </Reference>
+    </ItemGroup>
+
+</Project>

Leaderboard/LeaderboardCollection.cs

@@ -0,0 +1,10 @@
+using GangsAPI.Extensions;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace Leaderboard;
+
+public static class LeaderboardCollection {
+  public static void RegisterLeaderboard(this IServiceCollection provider) {
+    provider.AddPluginBehavior<ILeaderboard, MSLeaderboard>();
+  }
+}

Leaderboard/LeaderboardCommand.cs

@@ -0,0 +1,29 @@
+using CounterStrikeSharp.API.Core;
+using CounterStrikeSharp.API.Core.Attributes.Registration;
+using GangsAPI.Data;
+using GangsAPI.Data.Command;
+using GangsAPI.Services.Commands;
+
+namespace Leaderboard;
+
+public class LeaderboardCommand(ILeaderboard leaderboard) : ICommand {
+  public string Name => "css_lb";
+  public string[] Aliases { get; } = ["css_lb", "css_leaderboard"];
+  private (int, double)[]? cachedLeaderboard;
+
+  public async Task<CommandResult> Execute(PlayerWrapper? executor,
+    CommandInfoWrapper info) {
+    cachedLeaderboard ??= (await leaderboard.GetTopGangs()).ToArray();
+
+    foreach (var (gangId, score) in cachedLeaderboard)
+      info.ReplySync($"Gang {gangId} has a score of {score}");
+
+    return CommandResult.SUCCESS;
+  }
+
+  [GameEventHandler]
+  public HookResult OnRoundStart(EventRoundStart ev, GameEventInfo info) {
+    cachedLeaderboard = null;
+    return HookResult.Continue;
+  }
+}

Leaderboard/MSLeaderboard.cs

@@ -0,0 +1,39 @@
+using System.Data;
+using CounterStrikeSharp.API.Core;
+using GangsAPI;
+using GangsAPI.Data;
+using GangsAPI.Services.Commands;
+using Microsoft.Extensions.DependencyInjection;
+using MySqlConnector;
+
+namespace Leaderboard;
+
+public class MSLeaderboard(IServiceProvider provider, IDBConfig config)
+  : ILeaderboard, IPluginBehavior {
+  public void Start(BasePlugin? plugin, bool hotReload) {
+    if (plugin == null) return;
+    var cmd = provider.GetRequiredService<ICommandManager>();
+    cmd.RegisterCommand(new LeaderboardCommand(this));
+  }
+
+  public async Task<IEnumerable<(int, double)>> GetTopGangs(int limit = 10,
+    int offset = 0) {
+    await using var connection = new MySqlConnection(config.ConnectionString);
+    await connection.OpenAsync();
+
+    var cmd = connection.CreateCommand();
+    cmd.CommandText =
+      $"SELECT GangId, Score FROM {config.TablePrefix}_leaderboard ORDER BY Score DESC LIMIT @limit OFFSET @offset";
+
+    cmd.Parameters.Add(new MySqlParameter("@limit", limit));
+    cmd.Parameters.Add(new MySqlParameter("@offset", offset));
+
+    await using var reader = await cmd.ExecuteReaderAsync();
+    var             result = new List<(int, double)>();
+
+    while (await reader.ReadAsync())
+      result.Add((reader.GetInt32(0), reader.GetDouble(1)));
+
+    return result;
+  }
+}

src/CS2/Gangs/GangServiceCollection.cs

@@ -8,6 +8,7 @@
 using GangsAPI.Services.Menu;
 using GangsAPI.Services.Player;
 using GangsAPI.Services.Server;
+using Leaderboard;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.DependencyInjection.Extensions;
 using Microsoft.Extensions.Localization;
@@ -43,6 +44,7 @@ public void ConfigureServices(IServiceCollection serviceCollection) {
     serviceCollection.RegisterPerks();
     serviceCollection.RegisterRewards();
     serviceCollection.RegisterRaffle();
+    serviceCollection.RegisterLeaderboard();
 
     serviceCollection.AddPluginBehavior<PlayerJoinCreationListener>();
     serviceCollection

src/CS2/Gangs/Gangs.csproj

@@ -8,6 +8,7 @@
     </PropertyGroup>
 
     <ItemGroup>
+        <ProjectReference Include="..\..\..\Leaderboard\Leaderboard.csproj" />
         <ProjectReference Include="..\..\..\Raffle\Raffle.csproj" />
         <ProjectReference Include="..\..\EcoRewards\EcoRewards.csproj"/>
         <ProjectReference Include="..\..\StatsTracker\StatsTracker.csproj"/>