Fix #2

LiveSigns/src/aliuly/livesigns/common/BasicHelp.php

@@ -0,0 +1,78 @@
+<?php
+namespace aliuly\livesigns\common;
+
+use pocketmine\command\CommandSender;
+use pocketmine\command\Command;
+use pocketmine\utils\TextFormat;
+use aliuly\livesigns\common\mc;
+use aliuly\livesigns\common\BasicCli;
+
+/**
+ * Implements simple help functionality for sub-commands
+ */
+class BasicHelp extends BasicCli {
+	protected $fmt;
+	/**
+	 * @param PluginBase $owner - plugin that owns this command
+	 */
+	public function __construct($owner,$fmt = "/%s %s %s") {
+		parent::__construct($owner);
+		$this->enableSCmd("help",["aliases"=>["?"]]);
+		$this->fmt = $fmt;
+	}
+	/**
+	 * Entry point for sub-commands.  Will show the help or usage messages
+	 *
+	 * @param CommandSender $c - Entity issuing the command
+	 * @param Command $cc - actual command that was issued
+	 * @param str $scmd - sub-command being executed
+	 * @param mixed $data - Additional data passed to sub-command (global options)
+	 * @param str[] $args - arguments for sub-command
+	 */
+	public function onSCommand(CommandSender $c,Command $cc,$scmd,$data,array $args) {
+		$cm = $this->owner->getSCmdMap();
+		$pageNumber = $this->getPageNumber($args);
+
+		if (count($args)) {
+			if ($args[0] == "usage") {
+				if (!isset($cm["usage"][$scmd])) return false;
+				$c->sendMessage(TextFormat::RED.mc::_("Usage: ").
+									 sprintf($this->fmt,
+												$cc->getName(),
+												$scmd,
+												$cm["usage"][$scmd]));
+				return true;
+			}
+			$txt = [ "Help for ".$cc->getName() ];
+
+			foreach ($args as $i) {
+				if (isset($cm["alias"][$i])) $i=$cm["alias"][$i];
+				if (!isset($cm["help"][$i]) && !isset($cm["usage"][$i])) {
+					$txt[] = TextFormat::RED.mc::_("No help for %1%",$i);
+					continue;
+				}
+				$txt[] = TextFormat::YELLOW.mc::_("Help: ").TextFormat::WHITE.
+						 "/".$cc->getName()." $i";
+				if (isset($cm["help"][$i]))
+					$txt[] = TextFormat::YELLOW.mc::_("Description: ").
+							 TextFormat::WHITE.$cm["help"][$i];
+				if (isset($cm["usage"][$i]))
+					$txt[] = TextFormat::YELLOW.mc::_("Usage: ").
+							 TextFormat::WHITE.
+							 sprintf($this->fmt,$cc->getName(),$i,$cm["usage"][$i]);
+			}
+			return $this->paginateText($c,$pageNumber,$txt);
+		}
+		ksort($cm["help"]);
+		$txt = [ mc::_("Available sub-commands for %1%",$cc->getName()) ];
+		foreach ($cm["help"] as $cn => $desc) {
+			$ln = TextFormat::GREEN.$cn;
+			foreach ($cm["alias"] as $i => $j) {
+				if ($j == $cn) $ln .= "|$i";
+			}
+			$ln .= ": ".TextFormat::WHITE.$desc;
+			$txt[] = $ln;
+		}
+		return $this->paginateText($c,$pageNumber,$txt);
+	}
+}