2020-01-04 19:31:52 +00:00
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import 'package:intl/intl.dart';
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final dateFormat = DateFormat('yyyy-MM');
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final dates = {
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"2014-5": 18844,
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"2014-6": 65406,
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"2014-7": 108882,
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"2014-8": 153594,
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"2014-9": 198072,
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"2014-10": 241088,
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"2014-11": 285305,
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"2014-12": 328069,
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"2015-1": 372369,
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"2015-2": 416505,
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"2015-3": 456631,
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"2015-4": 501084,
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"2015-5": 543973,
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"2015-6": 588326,
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"2015-7": 631187,
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"2015-8": 675484,
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"2015-9": 719725,
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"2015-10": 762463,
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"2015-11": 806528,
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"2015-12": 849041,
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"2016-1": 892866,
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"2016-2": 936736,
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"2016-3": 977691,
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"2016-4": 1015848,
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"2016-5": 1037417,
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"2016-6": 1059651,
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"2016-7": 1081269,
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"2016-8": 1103630,
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"2016-9": 1125983,
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"2016-10": 1147617,
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"2016-11": 1169779,
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"2016-12": 1191402,
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"2017-1": 1213861,
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"2017-2": 1236197,
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"2017-3": 1256358,
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"2017-4": 1278622,
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"2017-5": 1300239,
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"2017-6": 1322564,
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"2017-7": 1344225,
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"2017-8": 1366664,
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"2017-9": 1389113,
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"2017-10": 1410738,
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"2017-11": 1433039,
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"2017-12": 1454639,
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"2018-1": 1477201,
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"2018-2": 1499599,
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"2018-3": 1519796,
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"2018-4": 1542067,
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"2018-5": 1562861,
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"2018-6": 1585135,
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"2018-7": 1606715,
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"2018-8": 1629017,
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"2018-9": 1651347,
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"2018-10": 1673031,
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"2018-11": 1695128,
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"2018-12": 1716687,
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"2019-1": 1738923,
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"2019-2": 1761435,
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"2019-3": 1781681,
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"2019-4": 1803081,
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"2019-5": 1824671,
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"2019-6": 1847005,
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"2019-7": 1868590,
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"2019-8": 1888590,
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"2019-9": 1898590,
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};
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int getHeigthByDate({DateTime date}) {
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final raw = '${date.year}' + '-' + '${date.month}';
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var endHeight = dates[raw] ?? 0;
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int preLastYear = date.year;
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int preLastMonth = date.month - 1;
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if (endHeight <= 0) {
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endHeight = dates.values.toList()[dates.length - 1];
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2020-01-08 12:26:34 +00:00
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final preLastDate =
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dateFormat.parse(dates.keys.elementAt(dates.keys.length - 2));
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2020-01-04 19:31:52 +00:00
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preLastYear = preLastDate.year;
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preLastMonth = preLastDate.month;
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} else {
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preLastYear = date.year;
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preLastMonth = date.month - 1;
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}
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if (preLastMonth <= 0) {
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preLastMonth = 12;
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preLastYear -= 1;
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}
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2020-01-08 12:26:34 +00:00
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final startRaw = '$preLastYear' + '-' + '$preLastMonth';
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final startHeight = dates[startRaw];
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final diff = endHeight - startHeight;
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final heightPerDay = diff / 30;
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final daysHeight = date.day * heightPerDay.round();
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final height = endHeight + daysHeight;
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2020-01-04 19:31:52 +00:00
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return height;
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}
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