created /citizens alias command

Author: zefir-git

src/main/java/pro/cloudnode/smp/smpcore/SMPCore.java

@@ -9,6 +9,7 @@
 import org.jetbrains.annotations.Nullable;
 import pro.cloudnode.smp.smpcore.command.AltsCommand;
 import pro.cloudnode.smp.smpcore.command.BanCommand;
+import pro.cloudnode.smp.smpcore.command.CitizensCommand;
 import pro.cloudnode.smp.smpcore.command.Command;
 import pro.cloudnode.smp.smpcore.command.MainCommand;
 import pro.cloudnode.smp.smpcore.command.NationCommand;
@@ -80,6 +81,7 @@ public void onEnable() {
             put("seen", new SeenCommand());
             put("time", new TimeCommand());
             put("nation", new NationCommand());
+            put("citizens", new CitizensCommand());
         }};
         commands.put("alts", new AltsCommand(commands.get("smpcore")));
         for (final @NotNull Map.Entry<@NotNull String, @NotNull Command> entry : commands.entrySet())

src/main/java/pro/cloudnode/smp/smpcore/command/CitizensCommand.java

@@ -0,0 +1,57 @@
+package pro.cloudnode.smp.smpcore.command;
+
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+import pro.cloudnode.smp.smpcore.Member;
+import pro.cloudnode.smp.smpcore.Nation;
+import pro.cloudnode.smp.smpcore.Permission;
+import pro.cloudnode.smp.smpcore.SMPCore;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.Optional;
+
+public class CitizensCommand extends Command {
+    @Override
+    public boolean run(
+            final @NotNull CommandSender sender,
+            final @NotNull String label,
+            @NotNull String @NotNull [] args
+    ) {
+        if (!sender.hasPermission(Permission.NATION))
+            return sendMessage(sender, SMPCore.messages().errorNoPermission());
+
+        final @NotNull Optional<@NotNull Member> member = sender instanceof final @NotNull Player player ? Member.get(
+                player) : Optional.empty();
+
+        final @NotNull Optional<@NotNull Nation> nation;
+        if (args.length > 0 && args[0].startsWith("id:")) {
+            final @NotNull String id = args[0].substring(3);
+            nation = Nation.get(id);
+            args = Arrays.copyOfRange(args, 1, args.length);
+            if (nation.isEmpty())
+                return sendMessage(sender, SMPCore.messages().errorNationNotFound(id));
+        }
+        else
+            nation = member.flatMap(Member::nation);
+
+        if (nation.isEmpty())
+            return sendMessage(sender, SMPCore.messages().errorNotCitizen());
+
+        if (args.length == 0)
+            return NationCommand.citizensSubcommands(member.orElse(null), nation.get(), sender, label);
+
+        return NationCommand.citizens(member.orElse(null), nation.get(), sender, label, args);
+    }
+
+    @Override
+    public @Nullable List<@NotNull String> tab(
+            final @NotNull CommandSender sender,
+            final @NotNull String label,
+            final @NotNull String @NotNull [] args
+    ) {
+        return List.of();
+    }
+}

src/main/resources/plugin.yml

@@ -37,3 +37,8 @@ commands:
     description: Manage nations
     usage: /<command>
     aliases: [ nations, country, countries ]
+  citizens:
+    permission: smpcore.nation
+    description: Manage nation citizens
+    usage: /<command>
+    aliases: [ members, subjects, nationals, people, residents, population, cits, pop ]