Refactor pending changes to use service and request handlers

1 files changed, 135 insertions, 0 deletions

diff --git a/app/Http/RequestHandlers/PendingChangesLogData.php b/app/Http/RequestHandlers/PendingChangesLogData.php
new file mode 100644
index 0000000000..a4af95c3b3
--- /dev/null
+++ b/app/Http/RequestHandlers/PendingChangesLogData.php
@@ -0,0 +1,135 @@
+<?php
+
+/**
+ * webtrees: online genealogy
+ * Copyright (C) 2019 webtrees development team
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+declare(strict_types=1);
+
+namespace Fisharebest\Webtrees\Http\RequestHandlers;
+
+use Fisharebest\Algorithm\MyersDiff;
+use Fisharebest\Webtrees\Carbon;
+use Fisharebest\Webtrees\Gedcom;
+use Fisharebest\Webtrees\GedcomRecord;
+use Fisharebest\Webtrees\I18N;
+use Fisharebest\Webtrees\Services\DatatablesService;
+use Fisharebest\Webtrees\Services\PendingChangesService;
+use Fisharebest\Webtrees\Services\TreeService;
+use Fisharebest\Webtrees\Tree;
+use InvalidArgumentException;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+use Psr\Http\Server\RequestHandlerInterface;
+use stdClass;
+
+use function e;
+use function explode;
+use function implode;
+use function preg_replace_callback;
+
+/**
+ * Find pending changes.
+ */
+class PendingChangesLogData implements RequestHandlerInterface
+{
+    /** @var DatatablesService */
+    private $datatables_service;
+
+    /** @var MyersDiff */
+    private $myers_diff;
+
+    /** @var PendingChangesService */
+    private $pending_changes_service;
+
+    /** @var TreeService */
+    private $tree_service;
+
+    /**
+     * @param DatatablesService     $datatables_service
+     * @param MyersDiff             $myers_diff
+     * @param PendingChangesService $pending_changes_service
+     * @param TreeService           $tree_service
+     */
+    public function __construct(
+        DatatablesService $datatables_service,
+        MyersDiff $myers_diff,
+        PendingChangesService $pending_changes_service,
+        TreeService $tree_service
+    ) {
+        $this->datatables_service      = $datatables_service;
+        $this->myers_diff              = $myers_diff;
+        $this->pending_changes_service = $pending_changes_service;
+        $this->tree_service            = $tree_service;
+    }
+
+    /**
+     * @param ServerRequestInterface $request
+     *
+     * @return ResponseInterface
+     */
+    public function handle(ServerRequestInterface $request): ResponseInterface
+    {
+        $tree = $request->getAttribute('tree');
+        assert($tree instanceof Tree, new InvalidArgumentException());
+
+        $query = $this->pending_changes_service->changesQuery($request);
+
+        $callback = function (stdClass $row) use ($tree): array {
+            $old_lines = explode("\n", $row->old_gedcom);
+            $new_lines = explode("\n", $row->new_gedcom);
+
+            $differences = $this->myers_diff->calculate($old_lines, $new_lines);
+            $diff_lines  = [];
+
+            foreach ($differences as $difference) {
+                switch ($difference[1]) {
+                    case MyersDiff::DELETE:
+                        $diff_lines[] = '<del>' . $difference[0] . '</del>';
+                        break;
+                    case MyersDiff::INSERT:
+                        $diff_lines[] = '<ins>' . $difference[0] . '</ins>';
+                        break;
+                    default:
+                        $diff_lines[] = $difference[0];
+                }
+            }
+
+            // Only convert valid xrefs to links
+            $record = GedcomRecord::getInstance($row->xref, $tree);
+
+            return [
+                $row->change_id,
+                Carbon::make($row->change_time)->local()->format('Y-m-d H:i:s'),
+                I18N::translate($row->status),
+                $record ? '<a href="' . e($record->url()) . '">' . $record->xref() . '</a>' : $row->xref,
+                '<div class="gedcom-data" dir="ltr">' .
+                preg_replace_callback(
+                    '/@(' . Gedcom::REGEX_XREF . ')@/',
+                    static function (array $match) use ($tree): string {
+                        $record = GedcomRecord::getInstance($match[1], $tree);
+
+                        return $record ? '<a href="' . e($record->url()) . '">' . $match[0] . '</a>' : $match[0];
+                    },
+                    implode("\n", $diff_lines)
+                ) .
+                '</div>',
+                $row->user_name,
+                $row->gedcom_name,
+            ];
+        };
+
+        return $this->datatables_service->handle($request, $query, [], [], $callback);
+    }
+}