337 lines
10 KiB
Dart
337 lines
10 KiB
Dart
import 'dart:async';
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import 'dart:convert';
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import 'dart:io';
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import 'package:easy_localization/easy_localization.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:gecko/globals.dart';
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import 'package:gecko/models/queries_indexer.dart';
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import 'package:gecko/providers/substrate_sdk.dart';
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import 'package:graphql_flutter/graphql_flutter.dart';
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class DuniterIndexer with ChangeNotifier {
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Map<String, String?> walletNameIndexer = {};
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String? fetchMoreCursor;
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Map? pageInfo;
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List? transBC;
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List listIndexerEndpoints = [];
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bool isLoadingIndexer = false;
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Map<String, String> idtyStatusCache = {};
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void reload() {
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notifyListeners();
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}
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Future<bool> checkIndexerEndpoint(String endpoint) async {
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isLoadingIndexer = true;
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notifyListeners();
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final client = HttpClient();
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client.connectionTimeout = const Duration(milliseconds: 4000);
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try {
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final request = await client.postUrl(Uri.parse('$endpoint/v1/graphql'));
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final response = await request.close();
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if (response.statusCode != 200) {
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log.d('INDEXER IS OFFLINE');
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indexerEndpoint = '';
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isLoadingIndexer = false;
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notifyListeners();
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return false;
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} else {
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indexerEndpoint = endpoint;
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await configBox.put('indexerEndpoint', endpoint);
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// await configBox.put('customEndpoint', endpoint);
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isLoadingIndexer = false;
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notifyListeners();
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final cache = HiveStore();
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cache.reset();
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return true;
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}
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} catch (e) {
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log.d('INDEXER IS OFFLINE');
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indexerEndpoint = '';
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isLoadingIndexer = false;
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notifyListeners();
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return false;
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}
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}
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// Future checkIndexerEndpointBackground() async {
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// final oldEndpoint = indexerEndpoint;
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// while (true) {
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// await Future.delayed(const Duration(seconds: 30));
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// final isValid = await checkIndexerEndpoint(oldEndpoint);
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// if (!isValid) {
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// log.d('INDEXER IS OFFILINE');
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// indexerEndpoint = '';
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// } else {
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// // log.d('Indexer is online');
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// indexerEndpoint = oldEndpoint;
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// }
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// }
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// }
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Future<String> getValidIndexerEndpoint() async {
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// await configBox.delete('indexerEndpoint');
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listIndexerEndpoints = await rootBundle
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.loadString('config/indexer_endpoints.json')
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.then((jsonStr) => jsonDecode(jsonStr));
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// _listEndpoints.shuffle();
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log.d(listIndexerEndpoints);
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listIndexerEndpoints.add('Personnalisé');
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if (configBox.containsKey('customIndexer')) {
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return configBox.get('customIndexer');
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}
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if (configBox.containsKey('indexerEndpoint')) {
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if (await checkIndexerEndpoint(configBox.get('indexerEndpoint'))) {
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return configBox.get('indexerEndpoint');
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}
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}
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int i = 0;
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// String _endpoint = '';
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int statusCode = 0;
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final client = HttpClient();
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client.connectionTimeout = const Duration(milliseconds: 3000);
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do {
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int listLenght = listIndexerEndpoints.length - 1;
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if (i >= listLenght) {
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log.e('NO VALID INDEXER ENDPOINT FOUND');
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indexerEndpoint = '';
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break;
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}
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log.d('${i + 1}n indexer endpoint try: ${listIndexerEndpoints[i]}');
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if (i != 0) {
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await Future.delayed(const Duration(milliseconds: 300));
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}
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try {
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String endpointPath = '${listIndexerEndpoints[i]}/v1/graphql';
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final request = await client.postUrl(Uri.parse(endpointPath));
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final response = await request.close();
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indexerEndpoint = listIndexerEndpoints[i];
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await configBox.put('indexerEndpoint', listIndexerEndpoints[i]);
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statusCode = response.statusCode;
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i++;
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} on TimeoutException catch (_) {
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log.e('This endpoint is timeout, next');
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statusCode = 50;
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i++;
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continue;
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} on SocketException catch (_) {
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log.e('This endpoint is a bad endpoint, next');
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statusCode = 70;
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i++;
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continue;
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} on Exception {
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log.e('Unknown error');
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statusCode = 60;
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i++;
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continue;
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}
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} while (statusCode != 200);
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log.i('INDEXER: $indexerEndpoint');
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return indexerEndpoint;
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}
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List parseHistory(blockchainTX, pubkey) {
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List transBC = [];
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int i = 0;
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for (final trans in blockchainTX) {
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final transaction = trans['node'];
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final direction =
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transaction['issuer_pubkey'] != pubkey ? 'RECEIVED' : 'SENT';
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transBC.add(i);
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transBC[i] = [];
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transBC[i].add(DateTime.parse(transaction['created_at']));
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final amountBrut = transaction['amount'];
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final amount = removeDecimalZero(amountBrut / 100);
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if (direction == "RECEIVED") {
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transBC[i].add(transaction['issuer_pubkey']);
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transBC[i].add(transaction['issuer']['identity']?['name'] ?? '');
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} else if (direction == "SENT") {
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transBC[i].add(transaction['receiver_pubkey']);
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transBC[i].add(transaction['receiver']['identity']?['name'] ?? '');
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}
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transBC[i].add(amount);
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transBC[i].add(direction);
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i++;
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}
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return transBC;
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}
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FetchMoreOptions? mergeQueryResult(result, opts, pubkey, nRepositories) {
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final List<dynamic>? blockchainTX =
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(result.data['transaction_connection']['edges'] as List<dynamic>?);
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pageInfo = result.data['transaction_connection']['pageInfo'];
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fetchMoreCursor = pageInfo!['endCursor'];
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final hasNextPage = pageInfo!['hasNextPage'];
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final hasPreviousPage = pageInfo!['hasPreviousPage'];
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log.d('endCursor: $fetchMoreCursor $hasNextPage $hasPreviousPage');
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if (fetchMoreCursor != null) {
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opts = FetchMoreOptions(
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variables: {'cursor': fetchMoreCursor, 'number': nRepositories},
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updateQuery: (previousResultData, fetchMoreResultData) {
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final List<dynamic> repos = [
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...previousResultData!['transaction_connection']['edges']
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as List<dynamic>,
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...fetchMoreResultData!['transaction_connection']['edges']
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as List<dynamic>
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];
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fetchMoreResultData['transaction_connection']['edges'] = repos;
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return fetchMoreResultData;
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},
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);
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}
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if (fetchMoreCursor != null) {
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transBC = parseHistory(blockchainTX, pubkey);
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} else {
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log.i("###### DEBUG H - Début de l'historique");
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}
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return opts;
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}
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double removeDecimalZero(double n) {
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String result = n.toStringAsFixed(n.truncateToDouble() == n ? 0 : 2);
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return double.parse(result);
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}
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}
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//// Manuals queries
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Future<bool> isIdtyExist(String name) async {
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final variables = <String, dynamic>{
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'name': name,
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};
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final result = await _execQuery(isIdtyExistQ, variables);
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return result.data!['identity']?.isEmpty ?? false ? false : true;
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}
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Future<DateTime> getBlockStart() async {
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final result = await _execQuery(getBlockchainStartQ, {});
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if (!result.hasException) {
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startBlockchainTime =
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DateTime.parse(result.data!['block'][0]['created_at']);
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startBlockchainInitialized = true;
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return startBlockchainTime;
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}
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return DateTime(0, 0, 0, 0, 0);
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}
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Future<QueryResult> _execQuery(
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String query, Map<String, dynamic> variables) async {
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final httpLink = HttpLink(
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'$indexerEndpoint/v1/graphql',
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);
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final GraphQLClient client = GraphQLClient(
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cache: GraphQLCache(),
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link: httpLink,
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);
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final QueryOptions options =
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QueryOptions(document: gql(query), variables: variables);
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return await client.query(options);
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}
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Map computeHistoryView(repository) {
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bool isTody = false;
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bool isYesterday = false;
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bool isThisWeek = false;
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bool isMigrationTime = false;
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String? dateDelimiter;
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DateTime now = DateTime.now();
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final bool isUdUnit = configBox.get('isUdUnit') ?? false;
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late double amount;
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late String finalAmount;
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DateTime date = repository[0];
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String dateForm;
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bool isDelimiter = true;
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if ({4, 10, 11, 12}.contains(date.month)) {
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dateForm = "${date.day} ${monthsInYear[date.month]!.substring(0, 3)}";
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} else if ({1, 2, 7, 9}.contains(date.month)) {
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dateForm = "${date.day} ${monthsInYear[date.month]!.substring(0, 4)}";
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} else {
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dateForm = "${date.day} ${monthsInYear[date.month]}";
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}
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final transactionDate = DateTime(date.year, date.month, date.day);
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final todayDate = DateTime(now.year, now.month, now.day);
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final yesterdayDate = DateTime(now.year, now.month, now.day - 1);
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if (transactionDate == todayDate && !isTody) {
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dateDelimiter = "today".tr();
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isTody = true;
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} else if (transactionDate == yesterdayDate && !isYesterday) {
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dateDelimiter = "yesterday".tr();
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isYesterday = true;
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} else if (weekNumber(date) == weekNumber(now) &&
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date.year == now.year &&
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transactionDate != yesterdayDate &&
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transactionDate != todayDate &&
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!isThisWeek) {
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dateDelimiter = "thisWeek".tr();
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isThisWeek = true;
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} else if (dateDelimiter != "${monthsInYear[date.month]} ${date.year}" &&
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transactionDate != todayDate &&
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transactionDate != yesterdayDate &&
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!(weekNumber(date) == weekNumber(now) && date.year == now.year)) {
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if (date.year == now.year) {
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dateDelimiter = monthsInYear[date.month];
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} else {
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dateDelimiter = "${monthsInYear[date.month]} ${date.year}";
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}
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} else {
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isDelimiter = false;
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}
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amount = repository[4] == 'RECEIVED' ? repository[3] : repository[3] * -1;
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if (isUdUnit) {
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amount = round(amount / balanceRatio);
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finalAmount = 'ud'.tr(args: ['$amount ']);
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} else {
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finalAmount = '$amount $currencyName';
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}
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if (startBlockchainInitialized && date.compareTo(startBlockchainTime) < 0) {
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isMigrationTime = true;
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} else {
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isMigrationTime = false;
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}
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return {
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'finalAmount': finalAmount,
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'isMigrationTime': isMigrationTime,
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'dateDelimiter': dateDelimiter ?? '',
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'isDelimiter': isDelimiter,
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'dateForm': dateForm,
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};
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}
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int weekNumber(DateTime date) {
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int dayOfYear = int.parse(DateFormat("D").format(date));
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return ((dayOfYear - date.weekday + 10) / 7).floor();
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}
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