Plex/src/main/java/dev/plex/command/PlexCommand.java

package dev.plex.command;

import dev.plex.Plex;
import dev.plex.cache.DataUtils;
import dev.plex.cache.PlayerCache;
import dev.plex.command.annotation.CommandParameters;
import dev.plex.command.annotation.CommandPermissions;
import dev.plex.command.exception.CommandFailException;
import dev.plex.command.exception.ConsoleMustDefinePlayerException;
import dev.plex.command.exception.ConsoleOnlyException;
import dev.plex.command.exception.PlayerNotBannedException;
import dev.plex.command.exception.PlayerNotFoundException;
import dev.plex.command.source.RequiredCommandSource;
import dev.plex.player.PlexPlayer;
import dev.plex.rank.enums.Rank;
import dev.plex.util.PlexLog;
import dev.plex.util.PlexUtils;
import java.util.Arrays;
import java.util.UUID;
import net.kyori.adventure.audience.Audience;
import net.kyori.adventure.text.Component;
import net.kyori.adventure.text.serializer.legacy.LegacyComponentSerializer;
import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.World;
import org.bukkit.command.Command;
import org.bukkit.command.CommandMap;
import org.bukkit.command.CommandSender;
import org.bukkit.command.ConsoleCommandSender;
import org.bukkit.command.PluginIdentifiableCommand;
import org.bukkit.entity.Player;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

/**
 * Superclass for all commands
 */
public abstract class PlexCommand extends Command implements PluginIdentifiableCommand
{
    /**
     * Returns the instance of the plugin
     */
    protected static Plex plugin = Plex.get();

    /**
     * The parameters for the command
     */
    private final CommandParameters params;

    /**
     * The permissions for the command
     */
    private final CommandPermissions perms;

    /**
     * Minimum required rank fetched from the permissions
     */
    private final Rank level;

    /**
     * Required command source fetched from the permissions
     */
    private final RequiredCommandSource commandSource;

    /**
     * Creates an instance of the command
     */
    public PlexCommand()
    {
        super("");
        this.params = getClass().getAnnotation(CommandParameters.class);
        this.perms = getClass().getAnnotation(CommandPermissions.class);

        setName(this.params.name());
        setLabel(this.params.name());
        setDescription(params.description());
        setUsage(params.usage().replace("<command>", this.params.name()));
        if (params.aliases().split(",").length > 0)
        {
            setAliases(Arrays.asList(params.aliases().split(",")));
        }
        this.level = perms.level();
        this.commandSource = perms.source();

        getMap().register("plex", this);
    }

    /**
     * Executes the command
     *
     * @param sender       The sender of the command
     * @param playerSender The player who executed the command (null if command source is console or if command source is any but console executed)
     * @param args         A Kyori Component to send to the sender (can be null)
     * @return
     */
    protected abstract Component execute(@NotNull CommandSender sender, @Nullable Player playerSender, @NotNull String[] args);

    /**
     * @hidden
     */
    @Override
    public boolean execute(@NotNull CommandSender sender, @NotNull String label, String[] args)
    {
        if (!matches(label))
        {
            return false;
        }

        if (commandSource == RequiredCommandSource.CONSOLE && sender instanceof Player)
        {
            sender.sendMessage(tl("noPermissionInGame"));
            return true;
        }

        if (commandSource == RequiredCommandSource.IN_GAME)
        {
            if (sender instanceof ConsoleCommandSender)
            {
                send(sender, tl("noPermissionConsole"));
                return true;
            }
        }

        if (sender instanceof Player player)
        {
            PlexPlayer plexPlayer = PlayerCache.getPlexPlayerMap().get(player.getUniqueId());

            if (plugin.getSystem().equalsIgnoreCase("ranks"))
            {
                if (!plexPlayer.getRankFromString().isAtLeast(getLevel()))
                {
                    send(sender, tl("noPermissionRank", ChatColor.stripColor(getLevel().getLoginMessage())));
                    return true;
                }
            }
            else if (plugin.getSystem().equalsIgnoreCase("permissions"))
            {
                if (!player.hasPermission(perms.permission()))
                {
                    send(sender, tl("noPermissionNode", perms.permission()));
                    return true;
                }
            }
            else
            {
                PlexLog.error("Neither permissions or ranks were selected to be used in the configuration file!");
                send(sender, "There is a server misconfiguration. Please alert a developer or the owner");
                return true;
            }
        }
        try
        {
            Component component = this.execute(sender, isConsole(sender) ? null : (Player)sender, args);
            if (component != null)
            {
                send(sender, component);
            }
        }
        catch (PlayerNotFoundException | CommandFailException
                | ConsoleOnlyException | ConsoleMustDefinePlayerException
                | PlayerNotBannedException ex)
        {
            send(sender, ex.getMessage());
        }
        return true;
    }

    /**
     * Checks if the string given is a command string
     *
     * @param label The string to check
     * @return true if the string is a command name or alias
     */
    private boolean matches(String label)
    {
        if (params.aliases().split(",").length > 0)
        {
            for (String alias : params.aliases().split(","))
            {
                if (alias.equalsIgnoreCase(label) || getName().equalsIgnoreCase(label))
                {
                    return true;
                }
            }
        }
        else if (params.aliases().split(",").length < 1)
        {
            return getName().equalsIgnoreCase(label);
        }
        return false;
    }

    /**
     * Gets a PlexPlayer from Player object
     *
     * @param player The player object
     * @return PlexPlayer Object
     * @see PlexPlayer
     */
    protected PlexPlayer getPlexPlayer(@NotNull Player player)
    {
        return DataUtils.getPlayer(player.getUniqueId());
    }

    /**
     * Sends a message to an audience
     *
     * @param audience The audience to send the message to
     * @param s        The message to send
     */
    protected void send(Audience audience, String s)
    {
        audience.sendMessage(componentFromString(s));
    }

    /**
     * Sends a message to an audience
     *
     * @param audience  The audience to send the message to
     * @param component The component to send
     */
    protected void send(Audience audience, Component component)
    {
        audience.sendMessage(component);
    }

    /**
     * Checks whether a sender has enough permissions or is high enough a rank
     *
     * @param sender     A command sender
     * @param rank       The rank to check (if the server is using ranks)
     * @param permission The permission to check (if the server is using permissions)
     * @return true if the sender has enough permissions
     * @see Rank
     */
    protected boolean checkRank(CommandSender sender, Rank rank, String permission)
    {
        if (!isConsole(sender))
        {
            return checkRank((Player)sender, rank, permission);
        }
        return true;
    }

    /**
     * Checks whether a player has enough permissions or is high enough a rank
     *
     * @param player     The player object
     * @param rank       The rank to check (if the server is using ranks)
     * @param permission The permission to check (if the server is using permissions)
     * @return true if the sender has enough permissions
     * @see Rank
     */
    protected boolean checkRank(Player player, Rank rank, String permission)
    {
        if (player instanceof ConsoleCommandSender)
        {
            return true;
        }
        PlexPlayer plexPlayer = getPlexPlayer(player);
        if (plugin.getSystem().equalsIgnoreCase("ranks"))
        {
            if (!plexPlayer.getRankFromString().isAtLeast(rank))
            {
                throw new CommandFailException(PlexUtils.tl("noPermissionRank", ChatColor.stripColor(rank.getLoginMessage())));
            }
        }
        else if (plugin.getSystem().equalsIgnoreCase("permissions"))
        {
            if (!player.hasPermission(permission))
            {
                throw new CommandFailException(PlexUtils.tl("noPermissionNode", permission));
            }
        }
        return true;
    }

    /**
     * Checks whether a sender has enough permissions or is high enough a rank
     *
     * @param sender     The player object
     * @param rank       The rank to check (if the server is using ranks)
     * @param permission The permission to check (if the server is using permissions)
     * @return true if the sender has enough permissions
     * @see Rank
     */
    protected boolean checkTab(CommandSender sender, Rank rank, String permission)
    {
        if (!isConsole(sender))
        {
            return checkTab((Player)sender, rank, permission);
        }
        return true;
    }


    /**
     * Checks whether a player has enough permissions or is high enough a rank
     *
     * @param player     The player object
     * @param rank       The rank to check (if the server is using ranks)
     * @param permission The permission to check (if the server is using permissions)
     * @return true if the sender has enough permissions
     * @see Rank
     */
    protected boolean checkTab(Player player, Rank rank, String permission)
    {
        PlexPlayer plexPlayer = getPlexPlayer(player);
        if (plugin.getSystem().equalsIgnoreCase("ranks"))
        {
            return plexPlayer.getRankFromString().isAtLeast(rank);
        }
        else if (plugin.getSystem().equalsIgnoreCase("permissions"))
        {
            return player.hasPermission(permission);
        }
        return true;
    }

    /**
     * Checks if a player is an admin
     *
     * @param plexPlayer The PlexPlayer object
     * @return true if the player is an admin
     * @see PlexPlayer
     */
    protected boolean isAdmin(PlexPlayer plexPlayer)
    {
        return Plex.get().getRankManager().isAdmin(plexPlayer);
    }

    /**
     * Checks if a sender is an admin
     *
     * @param sender A command sender
     * @return true if the sender is an admin or if console
     */
    protected boolean isAdmin(CommandSender sender)
    {
        if (!(sender instanceof Player player))
        {
            return true;
        }
        PlexPlayer plexPlayer = getPlexPlayer(player);
        return plugin.getRankManager().isAdmin(plexPlayer);
    }

    /**
     * Checks if a username is an admin
     *
     * @param name The username
     * @return true if the username is an admin
     */
    protected boolean isAdmin(String name)
    {
        PlexPlayer plexPlayer = DataUtils.getPlayer(name);
        return plugin.getRankManager().isAdmin(plexPlayer);
    }

    /**
     * Checks if a sender is a senior admin
     *
     * @param sender A command sender
     * @return true if the sender is a senior admin or if console
     */
    protected boolean isSeniorAdmin(CommandSender sender)
    {
        if (!(sender instanceof Player player))
        {
            return true;
        }
        PlexPlayer plexPlayer = getPlexPlayer(player);
        return plugin.getRankManager().isSeniorAdmin(plexPlayer);
    }

    /**
     * Gets the UUID of the sender
     *
     * @param sender A command sender
     * @return A unique ID or null if the sender is console
     * @see UUID
     */
    protected UUID getUUID(CommandSender sender)
    {
        if (!(sender instanceof Player player))
        {
            return null;
        }
        return player.getUniqueId();
    }

    /**
     * The plugin
     *
     * @return The instance of the plugin
     * @see Plex
     */
    @Override
    public @NotNull Plex getPlugin()
    {
        return plugin;
    }

    /**
     * Checks whether a sender is console
     *
     * @param sender A command sender
     * @return true if the sender is console
     */
    protected boolean isConsole(CommandSender sender)
    {
        return !(sender instanceof Player);
    }

    /**
     * Converts a message entry from the "messages.yml" to a component
     *
     * @param s       The message entry
     * @param objects Any objects to replace in order
     * @return A kyori component
     */
    protected Component tl(String s, Object... objects)
    {
        return componentFromString(PlexUtils.tl(s, objects));
    }

    /**
     * Converts usage to a component
     *
     * @return A Kyori component stating the usage
     */
    protected Component usage()
    {
        return componentFromString(ChatColor.YELLOW + "Correct Usage: " + ChatColor.GRAY + this.getUsage());
    }

    /**
     * Converts usage to a component
     *
     * s The usage to convert
     * @return A Kyori component stating the usage
     */
    protected Component usage(String s)
    {
        return componentFromString(ChatColor.YELLOW + "Correct Usage: " + ChatColor.GRAY + this.getUsage());
    }

    protected Player getNonNullPlayer(String name)
    {
        Player player = Bukkit.getPlayer(name);
        if (player == null)
        {
            throw new PlayerNotFoundException();
        }
        return player;
    }

    protected PlexPlayer getOnlinePlexPlayer(String name)
    {
        Player player = getNonNullPlayer(name);
        PlexPlayer plexPlayer = PlayerCache.getPlexPlayer(player.getUniqueId());
        if (plexPlayer == null)
        {
            throw new PlayerNotFoundException();
        }
        return plexPlayer;
    }

    protected PlexPlayer getOfflinePlexPlayer(UUID uuid)
    {
        PlexPlayer plexPlayer = DataUtils.getPlayer(uuid);
        if (plexPlayer == null)
        {
            throw new PlayerNotFoundException();
        }
        return plexPlayer;
    }

    protected World getNonNullWorld(String name)
    {
        World world = Bukkit.getWorld(name);
        if (world == null)
        {
            throw new CommandFailException(PlexUtils.tl("worldNotFound"));
        }
        return world;
    }

    /**
     * Converts a string to a legacy kyori component
     *
     * @param s The string to convert
     * @return A kyori component
     */
    protected Component componentFromString(String s)
    {
        return LegacyComponentSerializer.legacyAmpersand().deserialize(s);
    }

    public Rank getLevel()
    {
        return level;
    }

    public CommandMap getMap()
    {
        return Plex.get().getServer().getCommandMap();
    }
}