cake_wallet/lib/src/domain/monero/get_height_by_date.dart
2020-01-04 21:31:52 +02:00

101 lines
2.3 KiB
Dart

import 'package:intl/intl.dart';
final dateFormat = DateFormat('yyyy-MM');
final dates = {
"2014-5": 18844,
"2014-6": 65406,
"2014-7": 108882,
"2014-8": 153594,
"2014-9": 198072,
"2014-10": 241088,
"2014-11": 285305,
"2014-12": 328069,
"2015-1": 372369,
"2015-2": 416505,
"2015-3": 456631,
"2015-4": 501084,
"2015-5": 543973,
"2015-6": 588326,
"2015-7": 631187,
"2015-8": 675484,
"2015-9": 719725,
"2015-10": 762463,
"2015-11": 806528,
"2015-12": 849041,
"2016-1": 892866,
"2016-2": 936736,
"2016-3": 977691,
"2016-4": 1015848,
"2016-5": 1037417,
"2016-6": 1059651,
"2016-7": 1081269,
"2016-8": 1103630,
"2016-9": 1125983,
"2016-10": 1147617,
"2016-11": 1169779,
"2016-12": 1191402,
"2017-1": 1213861,
"2017-2": 1236197,
"2017-3": 1256358,
"2017-4": 1278622,
"2017-5": 1300239,
"2017-6": 1322564,
"2017-7": 1344225,
"2017-8": 1366664,
"2017-9": 1389113,
"2017-10": 1410738,
"2017-11": 1433039,
"2017-12": 1454639,
"2018-1": 1477201,
"2018-2": 1499599,
"2018-3": 1519796,
"2018-4": 1542067,
"2018-5": 1562861,
"2018-6": 1585135,
"2018-7": 1606715,
"2018-8": 1629017,
"2018-9": 1651347,
"2018-10": 1673031,
"2018-11": 1695128,
"2018-12": 1716687,
"2019-1": 1738923,
"2019-2": 1761435,
"2019-3": 1781681,
"2019-4": 1803081,
"2019-5": 1824671,
"2019-6": 1847005,
"2019-7": 1868590,
"2019-8": 1888590,
"2019-9": 1898590,
};
int getHeigthByDate({DateTime date}) {
final raw = '${date.year}' + '-' + '${date.month}';
var endHeight = dates[raw] ?? 0;
int preLastYear = date.year;
int preLastMonth = date.month - 1;
if (endHeight <= 0) {
endHeight = dates.values.toList()[dates.length - 1];
final preLastDate = dateFormat.parse(dates.keys.elementAt(dates.keys.length - 2));
preLastYear = preLastDate.year;
preLastMonth = preLastDate.month;
} else {
preLastYear = date.year;
preLastMonth = date.month - 1;
}
if (preLastMonth <= 0) {
preLastMonth = 12;
preLastYear -= 1;
}
var startRaw = '$preLastYear' + '-' + '$preLastMonth';
var startHeight = dates[startRaw];
var diff = endHeight - startHeight;
var heightPerDay = diff / 30;
var daysHeight = date.day * heightPerDay.round();
var height = endHeight + daysHeight;
return height;
}