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Creating Range class.
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@edufolly
edufolly committed Sep 23, 2024
1 parent da22d92 commit 6dc3fc6
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Showing 3 changed files with 210 additions and 87 deletions.
174 changes: 87 additions & 87 deletions lib/util/credit_card_type.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -12,7 +12,7 @@ enum CreditCardType {
lengths: [16, 18, 19],
code: CreditCardCode('CVV', [3]),
patterns: {
Range(4),
CreditCardRange(4),
},
),

Expand All @@ -23,12 +23,12 @@ enum CreditCardType {
lengths: [16],
code: CreditCardCode('CVC', [3]),
patterns: {
Range(51, 55),
Range(2221, 2229),
Range(223, 229),
Range(23, 26),
Range(270, 271),
Range(2720),
CreditCardRange(51, 55),
CreditCardRange(2221, 2229),
CreditCardRange(223, 229),
CreditCardRange(23, 26),
CreditCardRange(270, 271),
CreditCardRange(2720),
},
extraBrands: ['mastercard'],
),
Expand All @@ -40,8 +40,8 @@ enum CreditCardType {
lengths: [15],
code: CreditCardCode('CID', [4]),
patterns: {
Range(34),
Range(37),
CreditCardRange(34),
CreditCardRange(37),
},
extraBrands: ['americanexpress'],
),
Expand All @@ -53,10 +53,10 @@ enum CreditCardType {
lengths: [14, 16, 19],
code: CreditCardCode('CVV', [3]),
patterns: {
Range(300, 305),
Range(36),
Range(38),
Range(39),
CreditCardRange(300, 305),
CreditCardRange(36),
CreditCardRange(38),
CreditCardRange(39),
},
extraBrands: ['dinersclub'],
),
Expand All @@ -68,9 +68,9 @@ enum CreditCardType {
lengths: [16, 19],
code: CreditCardCode('CID', [3]),
patterns: {
Range(6011),
Range(644, 649),
Range(65),
CreditCardRange(6011),
CreditCardRange(644, 649),
CreditCardRange(65),
},
),

Expand All @@ -81,9 +81,9 @@ enum CreditCardType {
lengths: [16, 17, 18, 19],
code: CreditCardCode('CVV', [3]),
patterns: {
Range(2131),
Range(1800),
Range(3528, 3589),
CreditCardRange(2131),
CreditCardRange(1800),
CreditCardRange(3528, 3589),
},
),

Expand All @@ -94,28 +94,28 @@ enum CreditCardType {
lengths: [14, 15, 16, 17, 18, 19],
code: CreditCardCode('CVN', [3]),
patterns: {
Range(620),
Range(62100, 62182),
Range(62184, 62187),
Range(62185, 62197),
Range(62200, 62205),
Range(622010, 622999),
Range(622018),
Range(62207, 62209),
Range(623, 626),
Range(6270),
Range(6272),
Range(6276),
Range(627700, 627779),
Range(627781, 627799),
Range(6282, 6289),
Range(6291),
Range(6292),
Range(810),
Range(8110, 8131),
Range(8132, 8151),
Range(8152, 8163),
Range(8164, 8171),
CreditCardRange(620),
CreditCardRange(62100, 62182),
CreditCardRange(62184, 62187),
CreditCardRange(62185, 62197),
CreditCardRange(62200, 62205),
CreditCardRange(622010, 622999),
CreditCardRange(622018),
CreditCardRange(62207, 62209),
CreditCardRange(623, 626),
CreditCardRange(6270),
CreditCardRange(6272),
CreditCardRange(6276),
CreditCardRange(627700, 627779),
CreditCardRange(627781, 627799),
CreditCardRange(6282, 6289),
CreditCardRange(6291),
CreditCardRange(6292),
CreditCardRange(810),
CreditCardRange(8110, 8131),
CreditCardRange(8132, 8151),
CreditCardRange(8152, 8163),
CreditCardRange(8164, 8171),
},
checkLuhn: false,
),
Expand All @@ -127,14 +127,14 @@ enum CreditCardType {
lengths: [12, 13, 14, 15, 16, 17, 18, 19],
code: CreditCardCode('CVC', [3]),
patterns: {
Range(493698),
Range(500000, 504174),
Range(504176, 506698),
Range(506779, 508999),
Range(56, 59),
Range(63),
Range(67),
Range(6),
CreditCardRange(493698),
CreditCardRange(500000, 504174),
CreditCardRange(504176, 506698),
CreditCardRange(506779, 508999),
CreditCardRange(56, 59),
CreditCardRange(63),
CreditCardRange(67),
CreditCardRange(6),
},
),

Expand All @@ -145,31 +145,31 @@ enum CreditCardType {
lengths: [16],
code: CreditCardCode('CVE', [3]),
patterns: {
Range(401178),
Range(401179),
Range(438935),
Range(457631),
Range(457632),
Range(431274),
Range(451416),
Range(457393),
Range(504175),
Range(506699, 506778),
Range(509000, 509999),
Range(627780),
Range(636297),
Range(636368),
Range(650031, 650033),
Range(650035, 650051),
Range(650405, 650439),
Range(650485, 650538),
Range(650541, 650598),
Range(650700, 650718),
Range(650720, 650727),
Range(650901, 650978),
Range(651652, 651679),
Range(655000, 655019),
Range(655021, 655058),
CreditCardRange(401178),
CreditCardRange(401179),
CreditCardRange(438935),
CreditCardRange(457631),
CreditCardRange(457632),
CreditCardRange(431274),
CreditCardRange(451416),
CreditCardRange(457393),
CreditCardRange(504175),
CreditCardRange(506699, 506778),
CreditCardRange(509000, 509999),
CreditCardRange(627780),
CreditCardRange(636297),
CreditCardRange(636368),
CreditCardRange(650031, 650033),
CreditCardRange(650035, 650051),
CreditCardRange(650405, 650439),
CreditCardRange(650485, 650538),
CreditCardRange(650541, 650598),
CreditCardRange(650700, 650718),
CreditCardRange(650720, 650727),
CreditCardRange(650901, 650978),
CreditCardRange(651652, 651679),
CreditCardRange(655000, 655019),
CreditCardRange(655021, 655058),
},
),

Expand All @@ -180,7 +180,7 @@ enum CreditCardType {
lengths: [16, 17, 18, 19],
code: CreditCardCode('CVP2', [3]),
patterns: {
Range(2200, 2204),
CreditCardRange(2200, 2204),
},
),

Expand All @@ -191,13 +191,13 @@ enum CreditCardType {
lengths: [16],
code: CreditCardCode('CVC', [3]),
patterns: {
Range(637095),
Range(63737423),
Range(63743358),
Range(637568),
Range(637599),
Range(637609),
Range(637612),
CreditCardRange(637095),
CreditCardRange(63737423),
CreditCardRange(63743358),
CreditCardRange(637568),
CreditCardRange(637599),
CreditCardRange(637609),
CreditCardRange(637612),
},
),

Expand All @@ -208,7 +208,7 @@ enum CreditCardType {
lengths: [16],
code: CreditCardCode('CVC', [3]),
patterns: {
Range(606282),
CreditCardRange(606282),
},
),

Expand All @@ -228,7 +228,7 @@ enum CreditCardType {
final String mask;
final List<int> lengths;
final CreditCardCode code;
final Set<Range> patterns;
final Set<CreditCardRange> patterns;
final bool checkLuhn;
final List<String> extraBrands;

Expand Down Expand Up @@ -305,7 +305,7 @@ enum CreditCardType {
String cNum = clearNum(ccNum);

for (final CreditCardType type in CreditCardType.values) {
for (final Range range in type.patterns) {
for (final CreditCardRange range in type.patterns) {
if (range.isValid(cNum)) {
return type;
}
Expand Down Expand Up @@ -350,11 +350,11 @@ class CreditCardCode {
///
///
///
class Range {
class CreditCardRange {
final int initialValue;
final int? finalValue;

const Range(this.initialValue, [this.finalValue]);
const CreditCardRange(this.initialValue, [this.finalValue]);

///
///
Expand Down
79 changes: 79 additions & 0 deletions lib/util/range.dart
View file
Original file line number Diff line number Diff line change
@@ -0,0 +1,79 @@
import 'package:flutter/foundation.dart';

///
///
///
@immutable
class Range {
final int _first;
final int _last;

///
///
///
const Range(int first, int last)
: assert(last >= first, 'First must be less than or equal to last'),
_first = first,
_last = last;

///
///
///
const Range.exclusive(int first, int last) : this(first, last - 1);

///
///
///
int get first => _first;

///
///
///
int get last => _last;

///
///
///
int get length => _last - _first + 1;

///
///
///
bool contains(int value) => value >= _first && value <= _last;

///
///
///
List<int> toList() => List<int>.generate(length, (int i) => _first + i);

///
///
///
@override
String toString() => 'Range($_first, $_last)';

///
///
///
@override
int get hashCode => '$_first$_last'.hashCode;

///
///
///
@override
bool operator ==(Object other) =>
other is Range && _first == other._first && _last == other._last;

///
///
///
Range copyWith({int? first, int? last}) =>
Range(first ?? _first, last ?? _last);

///
///
///
bool intersects(Range other) =>
_first <= other._last && _last >= other._first;
}
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