feat: add MCP server for the website chatbot over a mirrored TYPO3 content feed

src/Chatbot/Mcp/Tool/SearchContentTool.php

@@ -0,0 +1,47 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Chatbot\Mcp\Tool;
+
+use App\Chatbot\Mcp\Sites;
+use App\Chatbot\Mcp\ToolCallRunner;
+use App\Chatbot\Search\ContentSearch;
+use Mcp\Capability\Attribute\McpTool;
+use Mcp\Capability\Attribute\Schema;
+use Mcp\Exception\ToolCallException;
+use Mcp\Schema\Result\CallToolResult;
+use Mcp\Schema\ToolAnnotations;
+
+#[McpTool(
+    name: 'search_content',
+    description: "Search the websites' editorial content: destinations, hotels, travel information, FAQs, terms, blog articles, general company information. Use for questions that are not about specific dates or prices. Returns excerpts; use get_document for the full text of a hit.",
+    annotations: new ToolAnnotations(readOnlyHint: true, openWorldHint: false),
+)]
+final class SearchContentTool
+{
+    public function __construct(
+        private readonly ContentSearch $search,
+        private readonly ToolCallRunner $runner,
+    ) {
+    }
+
+    public function __invoke(
+        #[Schema(description: 'What to look for, in German keywords works best, e.g. "Gepäck Snowboard Bus".', minLength: 1)]
+        string $query,
+        #[Schema(description: 'Restrict to one kind of content. destination = region, country or town.', enum: ['page', 'product', 'hotel', 'destination', 'concept', 'news'])]
+        ?string $type = null,
+        #[Schema(description: Sites::DESCRIPTION, enum: Sites::IDENTIFIERS)]
+        ?string $site = null,
+        #[Schema(description: 'Number of hits, default 5, at most 8.', minimum: 1, maximum: 8)]
+        ?int $limit = null,
+    ): CallToolResult {
+        return $this->runner->run('search_content', get_defined_vars(), function () use ($query, $type, $site, $limit): array {
+            if ('' === trim($query)) {
+                throw new ToolCallException('query must not be empty.');
+            }
+
+            return ['results' => $this->search->search($query, $type, $site, max(1, min(8, $limit ?? 5)))];
+        });
+    }
+}