132 lines
3.0 KiB
PHP
132 lines
3.0 KiB
PHP
<?php
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namespace NoccyLabs\Shell;
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use NoccyLabs\Shell\LineRead;
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abstract class Shell
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{
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protected $prompt;
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protected $promptStyle;
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protected $commandStyle;
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public function __construct(array $config=[])
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{
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$this->configure($config);
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}
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abstract protected function configure(array $config);
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public function addCommand($command, callable $handler=null)
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{
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if (!$handler) {
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if (!($command instanceof Command)) {
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throw new \RuntimeException("Handler is not callable nor a Command");
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}
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$command->setShell($this);
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$this->commands[$command->getName()] = $command;
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} else {
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$this->commands[$command] = $handler;
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}
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}
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public function execute($command)
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{
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if (is_array($command)) {
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foreach ($command as $cmd) {
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$this->execute($cmd);
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}
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return;
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}
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$buffer = str_getcsv($command, " ", "\"", "\\");
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if (count($buffer)>0) {
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$this->onCommand($buffer);
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}
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}
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protected function onCommand($buffer)
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{
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$this->executeBuffer($buffer);
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}
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protected function executeBuffer(array $buffer)
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{
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$commandName = array_shift($buffer);
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if (array_key_exists($commandName, $this->commands)) {
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$command = $this->commands[$commandName];
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if ($command instanceof Command) {
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$command->run($buffer);
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} else {
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call_user_func_array($command,$buffer);
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}
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return;
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}
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$this->writeln("Bad command: ".$commandName);
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}
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public function writeln($output)
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{
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echo "\r\e[K\e[0m".$output."\n";
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}
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protected function onUpdate()
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{
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}
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public function setPrompt($prompt)
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{
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$this->prompt = $prompt;
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}
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public function setPromptStyle($style)
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{
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$this->promptStyle = $style;
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}
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public function setCommandStyle($style)
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{
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$this->commandStyle = $style;
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}
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public function run()
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{
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$lineRead = new LineRead();
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$lineRead->setCommandStyle($this->commandStyle);
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$this->running = true;
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do {
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$lineRead->setPrompt($this->prompt, $this->promptStyle);
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$buffer = $lineRead->update();
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if ($buffer == "\x03") {
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$this->stop();
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continue;
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}
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ob_start();
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$this->onUpdate();
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if ($buffer !== null) {
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$this->execute($buffer);
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}
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$buf = ob_get_contents();
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ob_end_clean();
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if ($buf) {
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$lineRead->erase();
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echo str_replace("\n", "\r\n", rtrim($buf)."\n");
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$lineRead->redraw();
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}
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usleep(10000);
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} while ($this->running);
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}
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public function stop()
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{
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$this->running = false;
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}
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}
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