Added better error messages to .clubapply

src/NadekoBot/Modules/Xp/Club/Club.cs

@@ -231,10 +231,16 @@ public partial class Xp
                 return;
             }
 
-            if (_service.ApplyToClub(ctx.User, club))
+            var result = _service.ApplyToClub(ctx.User, club);
+            if (result == ClubApplyResult.Success)
                 await ReplyConfirmLocalizedAsync(strs.club_applied(Format.Bold(club.ToString())));
-            else
-                await ReplyErrorLocalizedAsync(strs.club_apply_error);
+            else if (result == ClubApplyResult.Banned)
+                await ReplyErrorLocalizedAsync(strs.club_join_banned);
+            else if (result == ClubApplyResult.InsufficientLevel)
+                await ReplyErrorLocalizedAsync(strs.club_insuff_lvl);
+            else if (result == ClubApplyResult.AlreadyInAClub)
+                await ReplyErrorLocalizedAsync(strs.club_already_in);
+            
         }
 
         [Cmd]

src/NadekoBot/Modules/Xp/Club/ClubService.cs

@@ -118,18 +118,22 @@ public class ClubService : INService, IClubService
         return club is not null;
     }
 
-    public bool ApplyToClub(IUser user, ClubInfo club)
+    public ClubApplyResult ApplyToClub(IUser user, ClubInfo club)
     {
         using var uow = _db.GetDbContext();
         var du = uow.GetOrCreateUser(user);
         uow.SaveChanges();
 
-        if (du.Club is not null
-            || club.Bans.Any(x => x.UserId == du.Id)
-            || club.Applicants.Any(x => x.UserId == du.Id))
-            //user banned or a member of a club, or already applied,
-            // or doesn't min minumum level requirement, can't apply
-            return false;
+        //user banned or a member of a club, or already applied,
+        // or doesn't min minumum level requirement, can't apply
+        if (du.Club is not null)
+            return ClubApplyResult.AlreadyInAClub;
+        
+        if (club.Bans.Any(x => x.UserId == du.Id))
+            return ClubApplyResult.Banned;
+        
+        if (club.Applicants.Any(x => x.UserId == du.Id))
+            return ClubApplyResult.InsufficientLevel;
 
         var app = new ClubApplicants
         {
@@ -138,9 +142,8 @@ public class ClubService : INService, IClubService
         };
 
         uow.Set<ClubApplicants>().Add(app);
-
         uow.SaveChanges();
-        return true;
+        return ClubApplyResult.Success;
     }
 
     public bool AcceptApplication(ulong clubOwnerUserId, string userName, out DiscordUser discordUser)

src/NadekoBot/Modules/Xp/Club/IClubService.cs

@@ -10,7 +10,7 @@ public interface IClubService
     ClubInfo? GetClubByMember(IUser user);
     Task<bool> SetClubIconAsync(ulong ownerUserId, string? url);
     bool GetClubByName(string clubName, out ClubInfo club);
-    bool ApplyToClub(IUser user, ClubInfo club);
+    ClubApplyResult ApplyToClub(IUser user, ClubInfo club);
     bool AcceptApplication(ulong clubOwnerUserId, string userName, out DiscordUser discordUser);
     ClubInfo? GetClubWithBansAndApplications(ulong ownerUserId);
     bool LeaveClub(IUser user);
@@ -20,4 +20,13 @@ public interface IClubService
     bool UnBan(ulong ownerUserId, string userName, out ClubInfo club);
     bool Kick(ulong kickerId, string userName, out ClubInfo club);
     List<ClubInfo> GetClubLeaderboardPage(int page);
+}
+
+public enum ClubApplyResult
+{
+    Success,
+
+    AlreadyInAClub,
+    Banned,
+    InsufficientLevel
 }

src/NadekoBot/data/strings/responses/responses.en-US.json

@@ -837,13 +837,15 @@
   "server_leaderboard": "Server XP Leaderboard",
   "global_leaderboard": "Global XP Leaderboard",
   "modified": "Modified server XP of the user {0} by {1}",
+  "club_insuff_lvl": "You're insufficient level to join that club.",
+  "club_join_banned": "You're banned from that club.",
+  "club_already_in": "You are already a member of a club.",
   "club_create_error_name": "Failed creating the club. A club with that name already exists.",
   "club_create_error": "Failed creating the club. Make sure you're above level 5 and not a member of a club already.",
   "club_name_too_long": "Club name is too long.",
   "club_created": "Club {0} successfully created!",
   "club_not_exists": "That club doesn't exist.",
   "club_applied": "You've applied for membership in {0} club.",
-  "club_apply_error": "Error applying. You are either already a member of the club, or you don't meet the minimum level requirement, or you've been banned from this one.",
   "club_accepted": "Accepted user {0} to the club.",
   "club_accept_error": "User not found",
   "club_left": "You've left the club.",