✨ Stickers

lib/providers/sn_sticker.dart

@@ -0,0 +1,38 @@
+import 'dart:developer';
+
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import 'package:surface/providers/sn_network.dart';
+import 'package:surface/types/attachment.dart';
+
+class SnStickerProvider {
+  late final SnNetworkProvider _sn;
+  final Map<String, SnSticker?> _cache = {};
+
+  SnStickerProvider(BuildContext context) {
+    _sn = context.read<SnNetworkProvider>();
+  }
+
+  bool hasNotSticker(String alias) {
+    return _cache.containsKey(alias) && _cache[alias] == null;
+  }
+
+  Future<SnSticker?> lookupSticker(String alias) async {
+    if (_cache.containsKey(alias)) {
+      return _cache[alias];
+    }
+
+    try {
+      final resp = await _sn.client.get('/cgi/uc/stickers/lookup/$alias');
+      final sticker = SnSticker.fromJson(resp.data);
+      _cache[alias] = sticker;
+
+      return sticker;
+    } catch (err) {
+      _cache[alias] = null;
+      log('[Sticker] Failed to lookup sticker $alias: $err');
+    }
+
+    return null;
+  }
+}

lib/providers/sticker.dart

@@ -1,3 +0,0 @@
-class StickerProvider {
-
-}