36 lines
999 B
Dart
36 lines
999 B
Dart
import 'dart:convert';
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import 'package:flutter/material.dart';
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import 'package:provider/provider.dart';
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import 'package:surface/logger.dart';
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import 'package:surface/providers/sn_network.dart';
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import 'package:surface/types/link.dart';
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class SnLinkPreviewProvider {
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late final SnNetworkProvider _sn;
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final Map<String, SnLinkMeta> _cache = {};
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SnLinkPreviewProvider(BuildContext context) {
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_sn = context.read<SnNetworkProvider>();
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}
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Future<SnLinkMeta?> getLinkMeta(String url) async {
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final b64 = utf8.fuse(base64Url);
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final target = b64.encode(url);
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if (_cache.containsKey(target)) return _cache[target];
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logging.debug('[LinkPreview] Fetching $url ($target)');
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try {
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final resp = await _sn.client.get('/cgi/re/link/$target');
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final meta = SnLinkMeta.fromJson(resp.data);
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_cache[url] = meta;
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return meta;
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} catch (err) {
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logging.warning('[LinkPreview] Failed to fetch $url ($target)...', err);
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return null;
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}
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}
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}
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