mobile-app/lib/utils/formatter.dart

import 'dart:developer';

import 'package:intl/intl.dart';

extension ddMM_HHmm on String {
  //"2020-08-13T02:11:32Z" => 13/08 02:11
  // convert utc to local timezone
  String format_DDMM_HHmm() {
    try {
      final str = this.toString();
      var dateFromString =
          DateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'").parse(str, true).toLocal();
      return DateFormat("dd/MM HH:mm").format(dateFromString);
    } catch (_) {
      return "";
    }
  }

  String format_DDMMYY_HHmm() {
    try {
      final str = this.toString();
      var dateFromString =
          DateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'").parse(str, true).toLocal();
      return DateFormat("dd/MM/yyyy HH:mm").format(dateFromString);
    } catch (_) {
      return "";
    }
  }
}

extension numToString on num {
  String formatNumtoStringDecimal() {
    try {
      var numWithLocalSeparator = new NumberFormat.decimalPattern("vi_VN");
      final str = numWithLocalSeparator.format(this);
      return str;
    } catch (_) {
      return "";
    }
  }
}

extension HHmm on Duration {
  String formatHHmm() {
    //1:34:00.000000
    final str = this.toString();

    final texts = str.split(":");
    final textHour = texts[0].padLeft(2, '0');
    final textMinute = texts[1].padLeft(2, '0');

    return "${textHour}h ${textMinute}m";
  }
}

extension FormatNumber on int {
  String formatDecimalThousand() {
    //1403 -> 1,403
    var f = new NumberFormat.decimalPattern("vi_VN");
    return f.format(this);
  }
}

extension FormatNumberToDecimal on double {
  String formatDecimalThousand() {
    var f = new NumberFormat.decimalPattern("vi_VN");
    return f.format(this);
  }
}

extension FormatDate on int {
  String MMM_dd_yyyy() {
    return DateFormat("MMM dd, yyyy")
        .format(DateTime.fromMillisecondsSinceEpoch(this * 1000));
  }
}

extension DoubleParsing on String {
  double parseDoubleThousand() {
    var newValue = this.replaceAll(".", "");
    var changeToServerFormat = newValue.replaceAll(",", ".");
    return double.tryParse(changeToServerFormat);
  }
}

extension IntParsing on String {
  int parseIntThousand() {
    var newValue = this.replaceAll(".", "");
    var changeToServerFormat = newValue.replaceAll(",", ".");
    return int.tryParse(changeToServerFormat);
  }
}