<?php

namespace KupShop\KupShopBundle\Command;

use KupShop\ComponentsBundle\Utils\ComponentsLocator;
use KupShop\KupShopBundle\Util\Functional\Mapping;
use KupShop\KupShopBundle\Util\StringUtil;
use KupShop\KupShopBundle\Util\System\BundleFinder;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Contracts\Service\Attribute\Required;

class GetConfigCommand extends Command
{
    /** @required */
    public BundleFinder $bundleFinder;

    protected static $defaultName = 'kupshop:config:get';

    public function __construct(
        protected ?ComponentsLocator $componentsLocator = null,
        ?string $name = null,
    ) {
        parent::__construct($name);
    }

    protected function execute(InputInterface $input, OutputInterface $output)
    {
        $config = [
            'modules' => $this->getModulesList(\Modules::getStructure()),
            'modulesWithValues' => $this->getModulesList(\Modules::getStructure(), withValues: true),
            'bundles' => $this->bundleFinder->getBundles(),
            'frontend_bundles' => [],
            'components' => iterator_to_array($this->getComponents()),
        ];

        if ($bundlesWithJSResources = $this->bundleFinder->getExistingBundlesPath('Resources/static')) {
            $config['frontend_bundles'] = $bundlesWithJSResources;
        }

        if (findModule(\Modules::COMPONENTS)) {
            Mapping::withKeys($this->bundleFinder->getBundles(), function ($bundle, $class) use (&$config) {
                $bundles = $this->bundleFinder->getContainer()->getParameter('kernel.bundles_metadata');
                if (file_exists("{$bundles[$bundle]['path']}/Resources/views/components")) {
                    if (StringUtil::startsWith($bundles[$bundle]['namespace'], 'Shop')) {
                        $config['twig_bundles'][$bundle] = "bundles/{$bundle}/Resources/views/";
                    } else {
                        $config['twig_bundles'][$bundle] = "engine/bundles/KupShop/{$bundle}/Resources/views/";
                    }
                }
            });
        }

        $output->write(json_encode($config));

        return 0;
    }

    private function getModulesList(array $structure, ?string $parent = null, bool $withValues = false): array
    {
        $modules = [];

        foreach ($structure as $key => $item) {
            $moduleKey = $key;
            if ($parent) {
                $moduleKey = $parent.'__'.$key;
            }

            $modules[$moduleKey] = $withValues ?
                $this->getModuleValue($parent ?: $key, $parent ? $key : null)
                : \Modules::check($parent ?: $key, $parent ? $key : null);

            if (!empty($item['submodules'])) {
                $modules = array_merge($modules, $this->getModulesList($item['submodules'], $key, $withValues));
            }
        }

        return $modules;
    }

    private function getModuleValue(string $moduleConst, ?string $submoduleName)
    {
        $modules = \Modules::getStructure();

        $module = $modules[$moduleConst]['value'] ?? null;
        $submodule = $modules[$moduleConst]['submodules'][$submoduleName]['value'] ?? null;

        if (empty($module)) {
            return false;
        }

        if (!empty($submoduleName) && empty($submodule)) {
            return false;
        }

        return findModule($module, $submodule, false);
    }

    protected function getComponents(): \Generator
    {
        if (!$this->componentsLocator) {
            return;
        }

        foreach ($this->componentsLocator->getComponents() as $component) {
            // If component not used on shop, skip
            if (!isset($component['shop'])) {
                continue;
            }

            yield $component['name'] => [
                'version' => $component['shop']['version'],
                'version_js' => $component['shop']['js'],
                'version_css' => $component['shop']['css'],
                'entrypoints' => $component['entrypoints'],
                'template' => $component['template'],
                'class' => $component['className'],
                'selector' => "'[data-component=\"{$component['className']}\"]'",
            ];
        }
    }
}