brendt\stitcher\adapter\PaginationAdapter::transform()

Complexity

Conditions	14
Paths	266

Size

Total Lines	71
Code Lines	50

Duplication

Lines	0
Ratio	0 %

Importance

Changes

0

<?php
    public function transform(Page $page, $filter = null) {
        $config = $page->getAdapter(AdapterFactory::PAGINATION_ADAPTER);

        if (!isset($config['variable'])) {
            return [$page];
        }

        $variable = $config['variable'];

        if (!$source = $page->getVariable($variable)) {
            throw new VariableNotFoundException("Variable \"{$variable}\" was not set as a data variable for page \"{$page->getId()}\"");
        }

        $pageId = rtrim($page->getId(), '/');
        $entries = $this->getData($source);
        $amount = isset($config['amount']) ? $config['amount'] : 10;
        $pageCount = (int) ceil(count($entries) / $amount);

        $i = 0;
        $result = [];

        while ($i < $pageCount) {
            $pageEntries = array_splice($entries, 0, $amount);
            $pageIndex = $i + 1;

            if ($filter && $pageIndex !== (int) $filter) {
                $i += 1;
                continue;
            }

            $url = "{$pageId}/page-{$pageIndex}";

            $next = count($entries) ? $pageIndex + 1 : null;
            $nextUrl = $next ? "{$pageId}/page-{$next}" : null;
            $previous = $pageIndex > 1 ? $pageIndex - 1 : null;
            $previousUrl = $previous ? "{$pageId}/page-{$previous}" : null;

            $entriesPage = clone $page;
            $pagination = [
                'current'  => $pageIndex,
                'previous' => $previous ? [
                    'url'   => $previousUrl,
                    'index' => $previous,
                ] : null,
                'next'     => $next ? [
                    'url'   => $nextUrl,
                    'index' => $next,
                ] : null,
                'pages'    => $pageCount,
            ];

            $entriesPage
                ->clearAdapter(AdapterFactory::PAGINATION_ADAPTER)
                ->setVariable($variable, $pageEntries)
                ->setParsedField($variable)
                ->setVariable('pagination', $pagination)
                ->setParsedField('pagination')
                ->setId($url);

            $result[$url] = $entriesPage;
            $i += 1;
        }

        if ($firstPage = reset($result)) {
            $mainPage = clone $firstPage;
            $mainPage->setId($pageId);
            $result[$pageId] = $mainPage;
        }

        return $result;
    }
}