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<?php
namespace Webmozart\Console;
use Exception;
use LogicException;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;
use Webmozart\Assert\Assert;
use Webmozart\Console\Api\Application\Application;
use Webmozart\Console\Api\Args\Format\ArgsFormat;
use Webmozart\Console\Api\Args\RawArgs;
use Webmozart\Console\Api\Command\CannotAddCommandException;
use Webmozart\Console\Api\Command\Command;
use Webmozart\Console\Api\Command\CommandCollection;
use Webmozart\Console\Api\Config\ApplicationConfig;
use Webmozart\Console\Api\Config\CommandConfig;
use Webmozart\Console\Api\Event\ConfigEvent;
use Webmozart\Console\Api\Event\ConsoleEvents;
use Webmozart\Console\Api\Event\PreResolveEvent;
use Webmozart\Console\Api\IO\InputStream;
use Webmozart\Console\Api\IO\IO;
use Webmozart\Console\Api\IO\OutputStream;
use Webmozart\Console\Args\ArgvArgs;
use Webmozart\Console\IO\ConsoleIO;
use Webmozart\Console\UI\Component\ExceptionTrace;
class ConsoleApplication implements Application
{
private $config;
private $commands;
private $namedCommands;
private $defaultCommands;
private $globalArgsFormat;
private $dispatcher;
private $preliminaryIo;
public function __construct($config)
{
$this->preliminaryIo = new ConsoleIO();
$this->preliminaryIo->setVerbosity(IO::VERBOSE);
if (is_callable($config)) {
try {
$config = $config();
} catch (Exception $e) {
$trace = new ExceptionTrace($e);
$trace->render($this->preliminaryIo);
exit($this->exceptionToExitCode($e->getCode()));
}
}
Assert::isInstanceOf($config, 'Webmozart\Console\Api\Config\ApplicationConfig', 'The $config argument must be an ApplicationConfig or a callable. Got: %s');
try {
$dispatcher = $config->getEventDispatcher();
if ($dispatcher && $dispatcher->hasListeners(ConsoleEvents::CONFIG)) {
$dispatcher->dispatch(ConsoleEvents::CONFIG,
new ConfigEvent($config));
}
$this->config = $config;
$this->dispatcher = $config->getEventDispatcher();
$this->commands = new CommandCollection();
$this->namedCommands = new CommandCollection();
$this->defaultCommands = new CommandCollection();
$this->globalArgsFormat = new ArgsFormat(array_merge(
$config->getOptions(),
$config->getArguments()
));
foreach ($config->getCommandConfigs() as $commandConfig) {
$this->addCommand($commandConfig);
}
} catch (Exception $e) {
if (!$config->isExceptionCaught()) {
throw $e;
}
$trace = new ExceptionTrace($e);
$trace->render($this->preliminaryIo);
exit($this->exceptionToExitCode($e->getCode()));
}
}
public function getConfig()
{
return $this->config;
}
public function getGlobalArgsFormat()
{
return $this->globalArgsFormat;
}
public function getCommand($name)
{
return $this->commands->get($name);
}
public function getCommands()
{
return clone $this->commands;
}
public function hasCommand($name)
{
return $this->commands->contains($name);
}
public function hasCommands()
{
return !$this->commands->isEmpty();
}
public function getNamedCommands()
{
return $this->namedCommands;
}
public function hasNamedCommands()
{
return count($this->namedCommands) > 0;
}
public function getDefaultCommands()
{
return $this->defaultCommands;
}
public function hasDefaultCommands()
{
return count($this->defaultCommands) > 0;
}
public function resolveCommand(RawArgs $args)
{
if ($this->dispatcher && $this->dispatcher->hasListeners(ConsoleEvents::PRE_RESOLVE)) {
$event = new PreResolveEvent($args, $this);
$this->dispatcher->dispatch(ConsoleEvents::PRE_RESOLVE, $event);
if ($resolvedCommand = $event->getResolvedCommand()) {
return $resolvedCommand;
}
}
return $this->config->getCommandResolver()->resolveCommand($args, $this);
}
public function run(RawArgs $args = null, InputStream $inputStream = null, OutputStream $outputStream = null, OutputStream $errorStream = null)
{
$io = $this->preliminaryIo;
try {
if (null === $args) {
$args = new ArgvArgs();
}
$ioFactory = $this->config->getIOFactory();
if (null === $ioFactory) {
throw new LogicException('The IO factory must be set.');
}
$io = call_user_func($ioFactory, $this, $args, $inputStream, $outputStream, $errorStream);
$resolvedCommand = $this->resolveCommand($args);
$command = $resolvedCommand->getCommand();
$parsedArgs = $resolvedCommand->getArgs();
$statusCode = $command->handle($parsedArgs, $io);
} catch (Exception $e) {
if (!$this->config->isExceptionCaught()) {
throw $e;
}
$trace = new ExceptionTrace($e);
$trace->render($io);
$statusCode = $this->exceptionToExitCode($e->getCode());
}
if ($this->config->isTerminatedAfterRun()) {
exit($statusCode);
}
return $statusCode;
}
private function exceptionToExitCode($code)
{
if (!is_numeric($code)) {
return 1;
}
return min(max((int) $code, 1), 255);
}
private function addCommand(CommandConfig $config)
{
if (!$config->isEnabled()) {
return;
}
$this->validateCommandName($config);
$command = new Command($config, $this);
$this->commands->add($command);
if ($config->isDefault()) {
$this->defaultCommands->add($command);
}
if (!$config->isAnonymous()) {
$this->namedCommands->add($command);
}
}
private function validateCommandName(CommandConfig $config)
{
$name = $config->getName();
if (!$name) {
throw CannotAddCommandException::nameEmpty();
}
if ($this->commands->contains($name)) {
throw CannotAddCommandException::nameExists($name);
}
}
}