107 lines
3.1 KiB
PHP
Executable File
107 lines
3.1 KiB
PHP
Executable File
<?php
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namespace BenBot;
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use Discord\Parts\Channel\Message;
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final class Command
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{
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protected $command;
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protected $description;
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protected $usage;
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protected $subCommands = [];
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protected $subCommandAliases = [];
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public function __construct(
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BenBot $client,
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$command,
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callable $callable,
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$description,
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$usage
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) {
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$this->client = $client;
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$this->command = $command;
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$this->callable = $callable;
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$this->description = $description;
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$this->usage = $usage;
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}
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public function handle(Message $message, array $args)
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{
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$subCommandOrig = array_shift($args);
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$subCommand = strtolower($subCommandOrig);
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if (array_key_exists($subCommand, $this->subCommands)) {
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return $this->subCommands[$subCommand]->handle($message, $args);
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} elseif (array_key_exists($subCommand, $this->subCommandAliases)) {
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return $this->subCommands[$this->subCommandAliases[$subCommand]]->handle($message, $args);
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}
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if (!is_null($subCommand)) {
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array_unshift($args, $subCommandOrig);
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}
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return call_user_func_array($this->callable, [$message, $args]);
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}
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public function registerSubCommand($command, $callable, array $options = [])
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{
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if (array_key_exists($command, $this->subCommands)) {
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throw new \Exception("A subcommand with the name $command already exists.");
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}
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list($commandInstance, $options) = $this->client->buildCommand($command, $callable, $options);
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$this->subCommands[$command] = $commandInstance;
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foreach ($options['aliases'] as $alias) {
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$this->registerSubCommandAlias($alias, $command);
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}
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return $commandInstance;
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}
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public function unregisterSubCommand($command)
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{
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if (!array_key_exists($command, $this->subCommands)) {
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throw new \Exception("A subcommand with the name $command does not exist.");
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}
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unset($this->subCommands[$command]);
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}
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public function registerSubCommandAlias($alias, $command)
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{
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$this->subCommandAliases[$alias] = $command;
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}
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public function unregisterSubCommandAlias($alias)
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{
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if (!array_key_exists($alias, $this->subCommandAliases)) {
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throw new \Exception("A subcommand with the name $alias does not exist");
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}
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unset($this->subCommandAliases[$alias]);
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}
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public function getHelp()
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{
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$helpString = ";{$this->command} {$this->usage}- {$this->description}\n";
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foreach ($this->subCommands as $command) {
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$help = $command->getHelp($this->command.' ');
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$helpString .= " ;{$this->command} ".ltrim($help['text'], ';');
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}
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return [
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'text' => $helpString,
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'subCommandAliases' => $this->subCommandAliases,
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];
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}
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public function __get($variable)
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{
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$allowed = ['command', 'description', 'usage'];
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if (array_search($variable, $allowed) !== false) {
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return $this->{$variable};
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}
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}
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}
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