Add an unfreeze command

src/main/java/dev/plex/command/impl/UnfreezeCMD.java

@@ -0,0 +1,46 @@
+package dev.plex.command.impl;
+
+import com.google.common.collect.ImmutableList;
+import dev.plex.cache.PlayerCache;
+import dev.plex.command.PlexCommand;
+import dev.plex.command.annotation.CommandParameters;
+import dev.plex.command.annotation.CommandPermissions;
+import dev.plex.command.exception.CommandArgumentException;
+import dev.plex.command.exception.CommandFailException;
+import dev.plex.player.PunishedPlayer;
+import dev.plex.rank.enums.Rank;
+import dev.plex.util.PlexUtils;
+import java.util.List;
+import net.kyori.adventure.text.Component;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+@CommandPermissions(level = Rank.ADMIN, permission = "plex.unfreeze")
+@CommandParameters(name = "unfreeze", description = "Unfreeze a player", usage = "/<command> <player>")
+public class UnfreezeCMD extends PlexCommand
+{
+    @Override
+    protected Component execute(@NotNull CommandSender sender, @Nullable Player playerSender, String[] args)
+    {
+        if (args.length != 1)
+        {
+            throw new CommandArgumentException();
+        }
+        Player player = getNonNullPlayer(args[0]);
+        PunishedPlayer punishedPlayer = PlayerCache.getPunishedPlayer(player.getUniqueId());
+        if (!punishedPlayer.isFrozen())
+        {
+            throw new CommandFailException(PlexUtils.tl("playerNotFrozen"));
+        }
+        punishedPlayer.setFrozen(false);
+        return tl("unfrozePlayer", sender.getName(), player.getName());
+    }
+
+    @Override
+    public @NotNull List<String> tabComplete(@NotNull CommandSender sender, @NotNull String alias, @NotNull String[] args) throws IllegalArgumentException
+    {
+        return args.length == 1 && isAdmin(sender) ? PlexUtils.getPlayerNameList() : ImmutableList.of();
+    }
+}