feat(garage): add real motorcycle image resolver

2026-09-01 12:10:22 -04:00 · 2026-09-01 12:10:22 -04:00 · 8f1ed177b0
parent 920564505f
commit 8f1ed177b0
1 changed files with 155 additions and 0 deletions
--- a/lib/services/motorcycle_image_service.dart
+++ b/lib/services/motorcycle_image_service.dart
@ -0,0 +1,155 @@
+import 'dart:convert';
+
+import 'package:flutter/foundation.dart';
+import 'package:http/http.dart' as http;
+
+class MotorcycleImage {
+  final String imageUrl;
+  final String sourceUrl;
+  final String? credit;
+  final String? license;
+
+  const MotorcycleImage({
+    required this.imageUrl,
+    required this.sourceUrl,
+    this.credit,
+    this.license,
+  });
+}
+
+/// Resolves a real motorcycle photograph for a make/model/year selection.
+///
+/// Known exact matches are preferred first. Other motorcycles are resolved
+/// from Wikimedia Commons using its public API, with licensing metadata kept
+/// alongside the image for attribution in the UI.
+class MotorcycleImageService {
+  MotorcycleImageService._();
+
+  static final MotorcycleImageService instance = MotorcycleImageService._();
+  final Map<String, MotorcycleImage?> _cache = {};
+
+  static const _exactMatches = <String, MotorcycleImage>{
+    '2001|yamaha|yzf-r6': MotorcycleImage(
+      imageUrl:
+          'https://upload.wikimedia.org/wikipedia/commons/e/e0/2001_Yamaha_YZFR600.jpg',
+      sourceUrl:
+          'https://commons.wikimedia.org/wiki/File:2001_Yamaha_YZFR600.jpg',
+      credit: 'James McCauley / Wikimedia Commons',
+      license: 'CC BY 2.0',
+    ),
+  };
+
+  Future<MotorcycleImage?> resolve({
+    required int year,
+    required String make,
+    required String model,
+  }) async {
+    final key = _key(year, make, model);
+    if (_cache.containsKey(key)) return _cache[key];
+
+    final exact = _exactMatches[key];
+    if (exact != null) {
+      _cache[key] = exact;
+      return exact;
+    }
+
+    try {
+      final query = '$year $make $model motorcycle';
+      final uri = Uri.https('commons.wikimedia.org', '/w/api.php', {
+        'action': 'query',
+        'format': 'json',
+        'origin': '*',
+        'generator': 'search',
+        'gsrnamespace': '6',
+        'gsrsearch': query,
+        'gsrlimit': '8',
+        'prop': 'imageinfo',
+        'iiprop': 'url|extmetadata',
+        'iiurlwidth': '900',
+        'iiextmetadatafilter': 'Artist|Credit|LicenseShortName|LicenseUrl',
+      });
+
+      final response = await http.get(uri, headers: const {
+        'Accept': 'application/json',
+        'User-Agent': 'MotorSignal/1.0 (motorcycle garage image lookup)',
+      }).timeout(const Duration(seconds: 8));
+
+      if (response.statusCode != 200) {
+        _cache[key] = null;
+        return null;
+      }
+
+      final json = jsonDecode(response.body) as Map<String, dynamic>;
+      final pages = (json['query']?['pages'] as Map?)?.values;
+      if (pages == null) {
+        _cache[key] = null;
+        return null;
+      }
+
+      MotorcycleImage? best;
+      var bestScore = -1;
+      final normalizedModel = _normalize(model);
+      final normalizedMake = _normalize(make);
+      final normalizedYear = year.toString();
+
+      for (final rawPage in pages) {
+        final page = Map<String, dynamic>.from(rawPage as Map);
+        final title = (page['title']?.toString() ?? '').toLowerCase();
+        final infoList = page['imageinfo'];
+        if (infoList is! List || infoList.isEmpty) continue;
+        final info = Map<String, dynamic>.from(infoList.first as Map);
+        final thumb = info['thumburl']?.toString() ?? info['url']?.toString();
+        final source = info['descriptionurl']?.toString();
+        if (thumb == null || source == null) continue;
+
+        final metadata = Map<String, dynamic>.from(
+          (info['extmetadata'] as Map?) ?? const {},
+        );
+        final license = _metadataValue(metadata, 'LicenseShortName');
+        final licenseLower = (license ?? '').toLowerCase();
+        final allowed = licenseLower.contains('cc by') ||
+            licenseLower.contains('public domain') ||
+            licenseLower.contains('cc0');
+        if (!allowed) continue;
+
+        var score = 0;
+        if (title.contains(normalizedModel)) score += 5;
+        if (title.contains(normalizedMake)) score += 3;
+        if (title.contains(normalizedYear)) score += 4;
+        if (title.contains('motorcycle') || title.contains('motorbike')) score += 1;
+
+        if (score > bestScore) {
+          bestScore = score;
+          best = MotorcycleImage(
+            imageUrl: thumb,
+            sourceUrl: source,
+            credit: _metadataValue(metadata, 'Artist') ??
+                _metadataValue(metadata, 'Credit'),
+            license: license,
+          );
+        }
+      }
+
+      _cache[key] = best;
+      return best;
+    } catch (error) {
+      debugPrint('Motorcycle image lookup failed: $error');
+      _cache[key] = null;
+      return null;
+    }
+  }
+
+  String _key(int year, String make, String model) =>
+      '$year|${_normalize(make)}|${_normalize(model)}';
+
+  String _normalize(String value) => value
+      .toLowerCase()
+      .replaceAll(RegExp(r'[^a-z0-9]+'), '-')
+      .replaceAll(RegExp(r'^-+|-+$'), '');
+
+  String? _metadataValue(Map<String, dynamic> metadata, String key) {
+    final value = metadata[key];
+    if (value is Map) return value['value']?.toString();
+    return value?.toString();
+  }
+}