✨ Add decimal property in toBigInt and fromBigInt method

CHANGELOG.md

@@ -2,6 +2,9 @@ Changelog
 =========
 =========
 
+#### Version 3.3.13
+* Add decimal property in `toBigInt` and `fromBigInt` method
+
 #### Version 3.3.12
 * Fix `ArchethicJsonRPCException` is not catched
 

lib/src/utils/utils.dart

@@ -39,23 +39,26 @@ Uint8List concatUint8List(Iterable<Uint8List> list) =>
 
 /// Convert any number into a big int for 10^8 decimals
 /// @param {num} Number to convert
-int toBigInt(num? number) {
+/// @param {num} Number to of decimals
+int toBigInt(num? number, {int decimal = 8}) {
   if (number == null) {
     return 0;
   }
-  return (Decimal.parse(number.toString()) * Decimal.parse('100000000'))
-      .toDouble()
-      .floor();
+  var nb = number;
+  for (var i = 0; i < decimal; i++) {
+    nb *= 10;
+  }
+  return nb.truncate();
 }
 
 /// Convert big int of 10^8 decimals to any number
 /// @param {int} Number to convert
-num fromBigInt(int? number) {
+num fromBigInt(int? number, {int decimal = 8}) {
   if (number == null) {
     return 0;
   }
-  return (Decimal.parse(number.toString()) / Decimal.parse('100000000'))
-      .toDouble();
+  final divisor = Decimal.parse('10').pow(decimal).toDecimal();
+  return (Decimal.parse(number.toString()) / divisor).toDouble();
 }
 
 /// Convert any number into a byte array

pubspec.yaml

@@ -3,7 +3,7 @@ name: archethic_lib_dart
 description: Archethic dart library for Flutter for Node and Browser. This library aims to provide a easy way to create Archethic transaction and to send them over the network
 homepage: https://github.com/archethic-foundation/libdart
 
-version: 3.3.12
+version: 3.3.13
 
 environment:
   sdk: ">=3.3.0 <4.0.0"
@@ -60,7 +60,6 @@ dev_dependencies:
 
   # A tool to help you find missing, under-promoted, over-promoted, and unused dependencies.
   dependency_validator: ^3.2.3
-
   # Code generation for immutable classes that has a simple syntax/API without compromising on the features
   freezed: ^2.4.7
 

test/utils_test.dart

@@ -56,6 +56,14 @@ void main() {
     test('should convert a double into a big integer with 10^8', () {
       expect(toBigInt(0.617714895), 61771489);
     });
+
+    test('should return Big Int with 8 decimals by default', () {
+      expect(toBigInt(12.5345), 1253450000);
+    });
+
+    test('should return Big Int with decimals passed in param', () {
+      expect(toBigInt(12.5345, decimal: 6), 12534500);
+    });
   });
 
   group('fromBigInt', () {
@@ -70,6 +78,14 @@ void main() {
     test('should convert a big integer with 10^8 into double', () {
       expect(0.61771489, fromBigInt(61771489));
     });
+
+    test('should return 8 decimals number by default', () {
+      expect(12.5345, fromBigInt(1253450000));
+    });
+
+    test('should return decimals number with decimals passed in param', () {
+      expect(12.5345, fromBigInt(12534500, decimal: 6));
+    });
   });
 
   group('toByteArray', () {