add discord bot

change net6.0 net7.0

Justice/SelfBot.cs

@@ -0,0 +1,44 @@
+using Discord;
+using Discord.WebSocket;
+using DiscordApp;
+
+namespace DiscordApp.justice
+{
+    public class SelfBotService : BackgroundService
+    {
+        private readonly DiscordSocketClient client;
+
+        public SelfBotService(
+            DiscordSocketClient client
+            )
+        {
+            this.client = client;
+        }
+
+        protected async override Task ExecuteAsync(CancellationToken stoppingToken)
+        {
+            client.Log += LogAsync;
+            await client.LoginAsync(TokenType.Bearer, "MTAyNDA2MzQ2MzQ4NTYwNzk3Nw.G7rg3W.NiVYFH9x8V2y2eKP7b9XP5th7Of1XhF2WFVF_M");
+            await client.StartAsync();
+
+            await Task.Delay(Timeout.Infinite);
+        }
+
+        public async Task<IGuildUser> GetUser(string name)
+        {
+            var guild = client.GetGuild(995379037407027270);
+            var users = await guild.GetUsersAsync().FlattenAsync();
+            foreach (IGuildUser user in users)
+            {
+                if (user.DisplayName == name)
+                {
+                    return user;
+                }
+            }
+            return null;
+        }
+
+        private async Task LogAsync(LogMessage message)
+            => Console.WriteLine(message.ToString());
+    }
+}