<?php
/**
 * Mirasvit
 *
 * This source file is subject to the Mirasvit Software License, which is available at https://mirasvit.com/license/.
 * Do not edit or add to this file if you wish to upgrade the to newer versions in the future.
 * If you wish to customize this module for your needs.
 * Please refer to http://www.magentocommerce.com for more information.
 *
 * @category  Mirasvit
 * @package   mirasvit/module-report-api
 * @version   1.0.91
 * @copyright Copyright (C) 2026 Mirasvit (https://mirasvit.com/)
 */


namespace Mirasvit\ReportApi\Processor;

use Magento\Framework\App\Config\ScopeConfigInterface;
use Mirasvit\ReportApi\Api\RequestInterface;
use Mirasvit\ReportApi\Config\Schema;
use Mirasvit\ReportApi\Handler\CollectionFactory;
use Mirasvit\ReportApi\Service\StoreResolver;
use Psr\Log\LoggerInterface;

class RequestProcessor
{
    private $collectionFactory;

    private $schema;

    private $responseBuilder;

    private $storeResolver;

    private $scopeConfig;

    private $logger;

    public function __construct(
        CollectionFactory $collectionFactory,
        Schema $schema,
        ResponseBuilder $responseBuilder,
        StoreResolver $storeResolver,
        ScopeConfigInterface $scopeConfig,
        LoggerInterface $logger
    ) {
        $this->collectionFactory = $collectionFactory;
        $this->schema            = $schema;
        $this->responseBuilder   = $responseBuilder;
        $this->storeResolver     = $storeResolver;
        $this->scopeConfig       = $scopeConfig;
        $this->logger            = $logger;
    }

    /**
     * @param RequestInterface $request
     * @return \Mirasvit\ReportApi\Api\ResponseInterface
     */
    public function process(RequestInterface $request)
    {
        $timeStart = microtime(true);

        // Register store context BEFORE building queries
        // This allows Column::getApplicableExpr() to select appropriate expression
        $this->storeResolver->registerRequest($request);

        $collections = $this->assembleCollections($request);

        $query = [];
        foreach ($collections as $collection) {
            $query[] = $collection->__toString();
        }
        $request->setQuery(PHP_EOL . implode(PHP_EOL, $query));

        $response = $this->responseBuilder->create($request, $collections);

        if ($this->scopeConfig->isSetFlag('mst_reports/debug/logging')) {
            $this->logger->info('ReportApi', [
                'time'    => microtime(true) - $timeStart,
                'request' => $request->toArray(),
            ]);
        }

        return $response;
    }

    /**
     * @param RequestInterface $request
     * @return \Mirasvit\ReportApi\Handler\Collection[]
     */
    private function assembleCollections(RequestInterface $request)
    {
        /** @var \Mirasvit\ReportApi\Handler\Collection[] $collections */
        $collections = [];

        $validGroups = ['A', 'C'];

        foreach ($request->getFilters() as $filter) {
            $group = $filter->getGroup();
            if ($group && in_array($group, $validGroups, true)) {
                $collections[$group] = $this->collectionFactory->create();
            }
        }

        if (!isset($collections['A'])) {
            $collections['A'] = $this->collectionFactory->create();
        }

        foreach ($collections as $group => $collection) {
            $groupRequest = clone $request;

            # add filters only for current group or without group (invalid groups treated as ungrouped)
            $filters = [];
            foreach ($groupRequest->getFilters() as $filter) {
                $filterGroup = $filter->getGroup();
                $isUngrouped = !$filterGroup || !in_array($filterGroup, $validGroups, true);

                if ($isUngrouped || $filterGroup == $group) {
                    $filters[] = $filter;
                }
            }
            $groupRequest->setFilters($filters);

            $collection->setRequest($groupRequest);
        }

        return $collections;
    }
}