<?php

/*
 *
 *  ____            _        _   __  __ _                  __  __ ____
 * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
 * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
 * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
 * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * @author PocketMine Team
 * @link http://www.pocketmine.net/
 *
 *
 */

declare(strict_types=1);

namespace pocketmine\command\defaults;

use pocketmine\command\Command;
use pocketmine\command\CommandSender;
use pocketmine\command\utils\InvalidCommandSyntaxException;
use pocketmine\lang\KnownTranslationFactory;
use pocketmine\permission\DefaultPermissionNames;
use pocketmine\player\Player;
use pocketmine\Server;
use pocketmine\ServerProperties;
use function count;
use function implode;
use function sort;
use function strtolower;
use const SORT_STRING;

class WhitelistCommand extends VanillaCommand{

	public function __construct(){
		parent::__construct(
			"whitelist",
			KnownTranslationFactory::pocketmine_command_whitelist_description(),
			KnownTranslationFactory::commands_whitelist_usage()
		);
		$this->setPermissions([
			DefaultPermissionNames::COMMAND_WHITELIST_RELOAD,
			DefaultPermissionNames::COMMAND_WHITELIST_ENABLE,
			DefaultPermissionNames::COMMAND_WHITELIST_DISABLE,
			DefaultPermissionNames::COMMAND_WHITELIST_LIST,
			DefaultPermissionNames::COMMAND_WHITELIST_ADD,
			DefaultPermissionNames::COMMAND_WHITELIST_REMOVE
		]);
	}

	public function execute(CommandSender $sender, string $commandLabel, array $args){
		if(count($args) === 1){
			switch(strtolower($args[0])){
				case "reload":
					if($this->testPermission($sender, DefaultPermissionNames::COMMAND_WHITELIST_RELOAD)){
						$server = $sender->getServer();
						$server->getWhitelisted()->reload();
						if($server->hasWhitelist()){
							$this->kickNonWhitelistedPlayers($server);
						}
						Command::broadcastCommandMessage($sender, KnownTranslationFactory::commands_whitelist_reloaded());
					}

					return true;
				case "on":
					if($this->testPermission($sender, DefaultPermissionNames::COMMAND_WHITELIST_ENABLE)){
						$server = $sender->getServer();
						$server->getConfigGroup()->setConfigBool(ServerProperties::WHITELIST, true);
						$this->kickNonWhitelistedPlayers($server);
						Command::broadcastCommandMessage($sender, KnownTranslationFactory::commands_whitelist_enabled());
					}

					return true;
				case "off":
					if($this->testPermission($sender, DefaultPermissionNames::COMMAND_WHITELIST_DISABLE)){
						$sender->getServer()->getConfigGroup()->setConfigBool(ServerProperties::WHITELIST, false);
						Command::broadcastCommandMessage($sender, KnownTranslationFactory::commands_whitelist_disabled());
					}

					return true;
				case "list":
					if($this->testPermission($sender, DefaultPermissionNames::COMMAND_WHITELIST_LIST)){
						$entries = $sender->getServer()->getWhitelisted()->getAll(true);
						sort($entries, SORT_STRING);
						$result = implode(", ", $entries);
						$count = (string) count($entries);

						$sender->sendMessage(KnownTranslationFactory::commands_whitelist_list($count, $count));
						$sender->sendMessage($result);
					}

					return true;

				case "add":
					$sender->sendMessage(KnownTranslationFactory::commands_generic_usage(KnownTranslationFactory::commands_whitelist_add_usage()));
					return true;

				case "remove":
					$sender->sendMessage(KnownTranslationFactory::commands_generic_usage(KnownTranslationFactory::commands_whitelist_remove_usage()));
					return true;
			}
		}elseif(count($args) === 2){
			if(!Player::isValidUserName($args[1])){
				throw new InvalidCommandSyntaxException();
			}
			switch(strtolower($args[0])){
				case "add":
					if($this->testPermission($sender, DefaultPermissionNames::COMMAND_WHITELIST_ADD)){
						$sender->getServer()->addWhitelist($args[1]);
						Command::broadcastCommandMessage($sender, KnownTranslationFactory::commands_whitelist_add_success($args[1]));
					}

					return true;
				case "remove":
					if($this->testPermission($sender, DefaultPermissionNames::COMMAND_WHITELIST_REMOVE)){
						$server = $sender->getServer();
						$server->removeWhitelist($args[1]);
						if(!$server->isWhitelisted($args[1])){
							$server->getPlayerExact($args[1])?->kick(KnownTranslationFactory::pocketmine_disconnect_kick(KnownTranslationFactory::pocketmine_disconnect_whitelisted()));
						}
						Command::broadcastCommandMessage($sender, KnownTranslationFactory::commands_whitelist_remove_success($args[1]));
					}

					return true;
			}
		}

		throw new InvalidCommandSyntaxException();
	}

	private function kickNonWhitelistedPlayers(Server $server) : void{
		$message = KnownTranslationFactory::pocketmine_disconnect_kick(KnownTranslationFactory::pocketmine_disconnect_whitelisted());
		foreach($server->getOnlinePlayers() as $player){
			if(!$server->isWhitelisted($player->getName())){
				$player->kick($message);
			}
		}
	}
}