Surface/lib/providers/user_directory.dart

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import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import 'package:surface/providers/sn_network.dart';
import 'package:surface/types/account.dart';
class UserDirectoryProvider {
late final SnNetworkProvider _sn;
UserDirectoryProvider(BuildContext context) {
_sn = context.read<SnNetworkProvider>();
}
final Map<String, int> _idCache = {};
final Map<int, SnAccount> _cache = {};
Future<List<SnAccount?>> listAccount(Iterable<dynamic> id) async {
final out = await Future.wait(
id.map((e) => getAccount(e)),
);
return out;
}
Future<SnAccount?> getAccount(dynamic id) async {
if (id is String && _idCache.containsKey(id)) {
id = _idCache[id];
}
if (_cache.containsKey(id)) {
return _cache[id];
}
try {
final resp = await _sn.client.get('/cgi/id/users/$id');
final account = SnAccount.fromJson(
resp.data as Map<String, dynamic>,
);
_cache[account.id] = account;
if (id is String) _idCache[id] = account.id;
return account;
} catch (err) {
return null;
}
}
SnAccount? getAccountFromCache(dynamic id) {
if (id is String && _idCache.containsKey(id)) {
id = _idCache[id];
}
return _cache[id];
}
}