Played around with a new app structure

app/Search/SearchApiController.php

@@ -0,0 +1,66 @@
+<?php
+
+namespace BookStack\Search;
+
+use BookStack\Api\ApiEntityListFormatter;
+use BookStack\Entities\Models\Entity;
+use BookStack\Http\Controllers\ApiController;
+use Illuminate\Http\Request;
+
+class SearchApiController extends ApiController
+{
+    protected SearchRunner $searchRunner;
+    protected SearchResultsFormatter $resultsFormatter;
+
+    protected $rules = [
+        'all' => [
+            'query'  => ['required'],
+            'page'   => ['integer', 'min:1'],
+            'count'  => ['integer', 'min:1', 'max:100'],
+        ],
+    ];
+
+    public function __construct(SearchRunner $searchRunner, SearchResultsFormatter $resultsFormatter)
+    {
+        $this->searchRunner = $searchRunner;
+        $this->resultsFormatter = $resultsFormatter;
+    }
+
+    /**
+     * Run a search query against all main content types (shelves, books, chapters & pages)
+     * in the system. Takes the same input as the main search bar within the BookStack
+     * interface as a 'query' parameter. See https://www.bookstackapp.com/docs/user/searching/
+     * for a full list of search term options. Results contain a 'type' property to distinguish
+     * between: bookshelf, book, chapter & page.
+     *
+     * The paging parameters and response format emulates a standard listing endpoint
+     * but standard sorting and filtering cannot be done on this endpoint. If a count value
+     * is provided this will only be taken as a suggestion. The results in the response
+     * may currently be up to 4x this value.
+     */
+    public function all(Request $request)
+    {
+        $this->validate($request, $this->rules['all']);
+
+        $options = SearchOptions::fromString($request->get('query') ?? '');
+        $page = intval($request->get('page', '0')) ?: 1;
+        $count = min(intval($request->get('count', '0')) ?: 20, 100);
+
+        $results = $this->searchRunner->searchEntities($options, 'all', $page, $count);
+        $this->resultsFormatter->format($results['results']->all(), $options);
+
+        $data = (new ApiEntityListFormatter($results['results']->all()))
+            ->withType()->withTags()
+            ->withField('preview_html', function (Entity $entity) {
+                return [
+                    'name'    => (string) $entity->getAttribute('preview_name'),
+                    'content' => (string) $entity->getAttribute('preview_content'),
+                ];
+            })->format();
+
+        return response()->json([
+            'data'  => $data,
+            'total' => $results['total'],
+        ]);
+    }
+}