<?php

namespace KupShop\FeedsBundle;

use KupShop\FeedsBundle\Exceptions\UnknownFeedTypeException;
use KupShop\FeedsBundle\Feed\IFeed;
use Symfony\Component\DependencyInjection\ServiceLocator;

class FeedLocator
{
    /** @var ServiceLocator */
    private $container;

    /** @var array */
    private $aliases = [];

    /** @var array */
    private $serviceIDs = [];

    /** @var array */
    private $configurableIDs = [];

    public function __construct(ServiceLocator $container)
    {
        $this->container = $container;
    }

    public function addFeed($serviceID, string $type, string $name, bool $configurable, bool $isAllowed)
    {
        if (!$isAllowed || ($configurable && !findModule(\Modules::FEED_GENERATOR))) {
            return;
        }
        $this->aliases[$type] = $name;
        $this->serviceIDs[$type] = $serviceID;
        if ($configurable) {
            $this->configurableIDs[] = $type;
        }
    }

    public function sortAliases()
    {
        $primary = [];
        $configurable = [];
        $other = [];
        foreach ($this->aliases as $key => $alias) {
            if ($key === 'configurable') {
                $primary[$key] = $alias;
            } elseif (($key === 'external') || ($key === 'deprecated')) {
                $other[$key] = $alias;
            } elseif ($this->isTypeConfigurable($key)) {
                $configurable[$key] = $alias;
            } else {
                $other[$key] = '[Zastaralý] '.$alias;
            }
        }
        array_multisort($configurable, SORT_STRING);
        array_multisort($other, SORT_STRING);
        $this->aliases = array_merge($primary, $configurable, $other);
    }

    public function getAliases(): array
    {
        return $this->aliases;
    }

    /**
     * @throws UnknownFeedTypeException
     */
    public function getServiceByType(string $type): IFeed
    {
        if (!isset($this->serviceIDs[$type])) {
            // throw new UnknownFeedTypeException('Unknown feed type: '.$type);
            $type = 'deprecated';
        }
        /** @var $feedService IFeed */
        $feedService = $this->container->get($this->serviceIDs[$type]);

        return $feedService;
    }

    /**
     * @throws UnknownFeedTypeException
     */
    public function getAliasByType(string $type): string
    {
        if (!isset($this->aliases[$type])) {
            throw new UnknownFeedTypeException($type);
        }

        return $this->aliases[$type];
    }

    public function isTypeConfigurable(string $type): bool
    {
        return in_array($type, $this->configurableIDs);
    }
}