<?php

namespace Consolidation\AnnotatedCommand\Hooks\Dispatchers;

use Consolidation\AnnotatedCommand\ExitCodeInterface;
use Consolidation\AnnotatedCommand\Hooks\HookManager;
use Consolidation\AnnotatedCommand\Hooks\StatusDeterminerInterface;

/**
 * Call hooks
 */
class StatusDeterminerHookDispatcher extends HookDispatcher implements StatusDeterminerInterface
{
    /**
     * Call all status determiners, and see if any of them
     * know how to convert to a status code.
     */
    public function determineStatusCode($result)
    {
        // If the result (post-processing) is an object that
        // implements ExitCodeInterface, then we will ask it
        // to give us the status code.
        if ($result instanceof ExitCodeInterface) {
            return $result->getExitCode();
        }

        $hooks = [
            HookManager::STATUS_DETERMINER,
        ];
        // If the result does not implement ExitCodeInterface,
        // then we'll see if there is a determiner that can
        // extract a status code from the result.
        $determiners = $this->getHooks($hooks);
        foreach ($determiners as $determiner) {
            $status = $this->callDeterminer($determiner, $result);
            if (isset($status)) {
                return $status;
            }
        }
    }

    protected function callDeterminer($determiner, $result)
    {
        if ($determiner instanceof StatusDeterminerInterface) {
            return $determiner->determineStatusCode($result);
        }
        if (is_callable($determiner)) {
            return $determiner($result);
        }
    }
}