forked from axiom-team/gecko
224 lines
6.6 KiB
Dart
224 lines
6.6 KiB
Dart
import 'dart:convert';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/material.dart';
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import 'package:gecko/globals.dart';
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import 'package:graphql_flutter/graphql_flutter.dart';
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import 'package:permission_handler/permission_handler.dart';
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import 'package:sentry/sentry.dart' as sentry;
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import 'package:qrscan/qrscan.dart' as scanner;
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import 'dart:math';
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import 'package:intl/intl.dart';
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import 'package:truncate/truncate.dart';
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import 'package:crypto/crypto.dart';
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import 'package:fast_base58/fast_base58.dart';
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class HistoryProvider with ChangeNotifier {
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String pubkey = '';
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String pubkeyShort = '';
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HistoryProvider(this.pubkey);
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final TextEditingController outputPubkey = TextEditingController();
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List transBC;
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bool isFirstBuild = true;
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String fetchMoreCursor;
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Map pageInfo;
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Future scan() async {
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await Permission.camera.request();
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String barcode;
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try {
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barcode = await scanner.scan();
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} catch (e, stack) {
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print(e);
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if (kReleaseMode) {
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await sentry.Sentry.captureException(
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e,
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stackTrace: stack,
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);
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}
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return 'false';
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}
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if (barcode != null) {
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this.outputPubkey.text = barcode;
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isPubkey(barcode);
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} else {
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return 'false';
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}
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return barcode;
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}
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String isPubkey(pubkey) {
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final RegExp regExp = new RegExp(
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r'^[a-zA-Z0-9]+$',
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caseSensitive: false,
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multiLine: false,
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);
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if (regExp.hasMatch(pubkey) == true &&
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pubkey.length > 42 &&
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pubkey.length < 45) {
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print("C'est une pubkey !!!");
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this.pubkey = pubkey;
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List<int> pubkeyByte = Base58Decode(pubkey);
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Digest pubkeyS256 = sha256.convert(sha256.convert(pubkeyByte).bytes);
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String pubkeyCheksum = Base58Encode(pubkeyS256.bytes);
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String pubkeyChecksumShort = truncate(pubkeyCheksum, 3,
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omission: "", position: TruncatePosition.end);
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pubkeyShort = truncate(pubkey, 5,
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omission: String.fromCharCode(0x2026),
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position: TruncatePosition.end) +
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truncate(pubkey, 4, omission: "", position: TruncatePosition.start) +
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':$pubkeyChecksumShort';
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this.outputPubkey.text = pubkey;
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print(pubkeyShort);
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notifyListeners();
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return pubkey;
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}
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return '';
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}
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// Pi: D2meevcAHFTS2gQMvmRW5Hzi25jDdikk4nC4u1FkwRaU // For debug
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// Boris: JE6mkuzSpT3ePciCPRTpuMT9fqPUVVLJz2618d33p7tn
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// Matograine portefeuille: 9p5nHsES6xujFR7pw2yGy4PLKKHgWsMvsDHaHF64Uj25.
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// Lion simone: 78jhpprYkMNF6i5kQPXfkAVBpd2aqcpieNsXTSW4c21f
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List parseHistory(txs, _pubkey) {
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// print(txs);
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var transBC = [];
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int i = 0;
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final currentBase = 0;
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double currentUD = 10.54;
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for (final trans in txs) {
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var direction = trans['direction'];
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final transaction = trans['node'];
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var output;
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if (direction == "RECEIVED") {
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for (String line in transaction['outputs']) {
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if (line.contains(_pubkey)) {
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output = line;
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}
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}
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} else {
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output = transaction['outputs'][0];
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}
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if (output == null) {
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continue;
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}
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transBC.add(i);
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transBC[i] = [];
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final dateBrut = DateTime.fromMillisecondsSinceEpoch(
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transaction['writtenTime'] * 1000);
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final DateFormat formatter = DateFormat('dd-MM-yy\nHH:mm');
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final date = formatter.format(dateBrut);
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transBC[i].add(transaction['writtenTime']);
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transBC[i].add(date);
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// print(
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// "DEBUG date et comment: ${date.toString()} -- ${transaction['comment'].toString()}");
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int amountBrut = int.parse(output.split(':')[0]);
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final base = int.parse(output.split(':')[1]);
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final int applyBase = base - currentBase;
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final num amount =
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removeDecimalZero(amountBrut * pow(10, applyBase) / 100);
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num amountUD = amount / currentUD;
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if (direction == "RECEIVED") {
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transBC[i].add(transaction['issuers'][0]);
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transBC[i].add(amount.toString());
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transBC[i].add(amountUD.toStringAsFixed(2));
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} else if (direction == "SENT") {
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final outPubkey = output.split("SIG(")[1].replaceAll(')', '');
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transBC[i].add(outPubkey);
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transBC[i].add('- ' + amount.toString());
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transBC[i].add(amountUD.toStringAsFixed(2));
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}
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transBC[i].add(transaction['comment']);
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i++;
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}
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return transBC;
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}
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FetchMoreOptions checkQueryResult(result, opts, _pubkey) {
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final List<dynamic> blockchainTX =
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(result.data['txsHistoryBc']['both']['edges'] as List<dynamic>);
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pageInfo = result.data['txsHistoryBc']['both']['pageInfo'];
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fetchMoreCursor = pageInfo['endCursor'];
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print('hasPreviousPage: ' + pageInfo['hasPreviousPage'].toString());
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print('hasNextPage: ' + pageInfo['hasNextPage'].toString());
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if (fetchMoreCursor != null) {
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opts = FetchMoreOptions(
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variables: {'cursor': fetchMoreCursor},
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updateQuery: (previousResultData, fetchMoreResultData) {
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final List<dynamic> repos = [
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...previousResultData['txsHistoryBc']['both']['edges']
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as List<dynamic>,
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...fetchMoreResultData['txsHistoryBc']['both']['edges']
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as List<dynamic>
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];
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fetchMoreResultData['txsHistoryBc']['both']['edges'] = repos;
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return fetchMoreResultData;
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},
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);
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}
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print(
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"###### DEBUG H Parse blockchainTX list. Cursor: $fetchMoreCursor ######");
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if (fetchMoreCursor != null) {
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transBC = parseHistory(blockchainTX, _pubkey);
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} else {
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print("###### DEBUG H - Début de l'historique");
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}
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return opts;
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}
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void snackNode(context) {
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if (isFirstBuild) {
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String _message;
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if (endPointGVA == 'HS') {
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_message =
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"Aucun noeud Duniter disponible, veuillez réessayer ultérieurement";
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} else {
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_message = "Vous êtes connecté au noeud\n${endPointGVA.split('/')[2]}";
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}
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final snackBar =
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SnackBar(content: Text(_message), duration: Duration(seconds: 2));
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Scaffold.of(context).showSnackBar(snackBar);
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isFirstBuild = false;
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}
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}
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void resetdHistory() {
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this.outputPubkey.text = '';
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notifyListeners();
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}
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num removeDecimalZero(double n) {
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String result = n.toStringAsFixed(n.truncateToDouble() == n ? 0 : 2);
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return num.parse(result);
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}
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snackCopyKey(context) {
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final snackBar = SnackBar(
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content:
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Text("Cette clé publique a été copié dans votre presse-papier."),
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duration: Duration(seconds: 2));
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Scaffold.of(context).showSnackBar(snackBar);
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}
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// num getBalance(_pubkey) {
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// getBalance(_pubkey);
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// }
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}
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