forked from wownero/cyberwow
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95 lines
2.6 KiB
95 lines
2.6 KiB
/*
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Copyright 2019 fuwa
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This file is part of CyberWOW.
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CyberWOW is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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CyberWOW is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with CyberWOW. If not, see <https://www.gnu.org/licenses/>.
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*/
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import 'dart:async';
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import 'dart:convert';
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import 'dart:math';
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import 'package:http/http.dart' as http;
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import 'package:flutter/foundation.dart';
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import '../../../helper.dart';
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import '../../../config.dart' as config;
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import '../../../logging.dart';
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import '../../interface/rpc/rpc2.dart' as rpc2;
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Future<http.Response> getTransactionPool() async => rpc2.rpc2('get_transaction_pool');
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Map<String, String> txInOutCache = {};
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Future<List<Map<String, dynamic>>> getTransactionPoolSimple() async {
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final response = await getTransactionPool();
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if (response == null) return [];
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log.finest('getTransactionPoolSimple response: ${response.body}');
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log.finest('Response status: ${response.statusCode}');
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if (response.statusCode != 200) {
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return [];
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} else {
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final responseBody = json.decode(response.body);
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final result = asJsonArray(responseBody['transactions']);
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final _sortedPool = result..sort
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(
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(x, y) {
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final int a = x['receive_time'];
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final int b = y['receive_time'];
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return b.compareTo(a);
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}
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);
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final _decodedPool = await Stream.fromIterable(_sortedPool).asyncMap
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(
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(x) async {
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if (txInOutCache.length > config.maxPoolTxSize) {
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txInOutCache = {};
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}
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final _txid = x['id_hash'];
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if (txInOutCache[_txid] == null) {
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final String _tx_json = x['tx_json'];
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final _tx_json_decoded = await compute(jsonDecode, _tx_json);
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final _inOut =
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{
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'vin': _tx_json_decoded['vin'].length,
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'vout': _tx_json_decoded['vout'].length,
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};
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final _inOutString = _inOut['vin'].toString() + '/' + _inOut['vout'].toString();
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txInOutCache[_txid] = _inOutString;
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log.fine('cached tx_json in pool for: ${_txid}');
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}
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return {
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...x,
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...{'i/o': txInOutCache[_txid]},
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};
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}
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);
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return _decodedPool.toList();
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}
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}
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