Using now String as data type for amount

EpcQrCode/src/commonMain/kotlin/net/codinux/banking/epcqrcode/EpcQrCode.kt

@@ -58,7 +58,7 @@ open class EpcQrCode(
      * Optional amount.
      * Max. 12 bytes.
      */
-    open val amount: Double?, // TODO: use BigDecimal
+    open val amount: String?,
 
     /**
      * Optional purpose code.

EpcQrCode/src/commonMain/kotlin/net/codinux/banking/epcqrcode/EpcQrCodeConfig.kt

@@ -9,7 +9,7 @@ open class EpcQrCodeConfig(
 
     var bic: String? = null,
 
-    var amount: Double? = null,
+    amount: String? = null,
 
     var reference: String? = null,
 
@@ -17,4 +17,17 @@ open class EpcQrCodeConfig(
 
     var encoding: EpcQrCodeCharacterSet = EpcQrCodeCharacterSet.UTF_8
 
-)
+) {
+
+    companion object {
+
+        fun ensureAmountFormat(amount: String?): String? {
+            return amount?.replace(',', '.')
+        }
+
+    }
+
+
+    open val amount: String? = ensureAmountFormat(amount)
+
+}

EpcQrCode/src/commonMain/kotlin/net/codinux/banking/epcqrcode/EpcQrCodeCreator.kt

@@ -38,7 +38,7 @@ open class EpcQrCodeCreator {
         epcQrCodeBuilder.appendLine(mapNullable(epcQrCode.bic))
         epcQrCodeBuilder.appendLine(epcQrCode.receiverName)
         epcQrCodeBuilder.appendLine(epcQrCode.iban)
-        epcQrCodeBuilder.appendLine(mapNullable(epcQrCode.amount?.let { (epcQrCode.currencyCode ?: EpcQrCode.CurrencyCodeDefaultValue) + convert(it) }))
+        epcQrCodeBuilder.appendLine(mapNullable(epcQrCode.amount?.let { (epcQrCode.currencyCode ?: EpcQrCode.CurrencyCodeDefaultValue) + it })) // TODO: ensure that amount is converted to the correct format
         epcQrCodeBuilder.appendLine(epcQrCode.purposeCode)
         epcQrCodeBuilder.appendLine(mapNullable(epcQrCode.remittanceReference))
 
@@ -54,10 +54,6 @@ open class EpcQrCodeCreator {
     }
 
 
-    protected open fun convert(amount: Double): String {
-        return amount.toString() // TODO: ensure that it's converted to the correct format
-    }
-
     protected open fun mapNullable(value: String?): String {
         return value ?: ""
     }

EpcQrCodeAndroidApp/src/main/java/net/codinux/banking/epcqrcode/MainActivity.kt

@@ -20,7 +20,7 @@ class MainActivity : AppCompatActivity() {
     private fun generateQrCode() {
         hideKeyboard(edtxtReference)
 
-        val param = EpcQrCodeConfig(edtxtReceiver.string, edtxtIban.string, edtxtBic.string, map(edtxtAmount.string), edtxtReference.string)
+        val param = EpcQrCodeConfig(edtxtReceiver.string, edtxtIban.string, edtxtBic.string, edtxtAmount.string, edtxtReference.string)
 
         generateQrCodeAsync(param) { createdQrCode ->
             imgGeneratedQrCode.setImageBitmap(createdQrCode)
@@ -43,8 +43,4 @@ class MainActivity : AppCompatActivity() {
         }
     }
 
-    private fun map(amount: String): Double? {
-        return amount.replace(',', '.').toDoubleOrNull()
-    }
-
 }

EpcQrCodeJavaFxApp/src/main/kotlin/net/codinux/banking/epcqrcode/windows/main/AppSettings.kt

@@ -5,7 +5,7 @@ open class AppSettings(
     open var receiver: String = "",
     open var iban: String = "",
     open var bic: String = "",
-    open var amount: Double? = null,
+    open var amount: String? = null,
     open var reference: String = "",
     open var destinationFile: String = ""
 )

EpcQrCodeJavaFxApp/src/main/kotlin/net/codinux/banking/epcqrcode/windows/main/MainWindow.kt

@@ -267,7 +267,7 @@ class MainWindow : View(FX.messages["application.title"]) {
     }
 
     private fun generateQrCode() {
-        val param = EpcQrCodeConfig(receiver.value, iban.value, bic.value, map(amount.value), reference.value)
+        val param = EpcQrCodeConfig(receiver.value, iban.value, bic.value, amount.value, reference.value)
         val qrCodeContent = EpcQrCodeCreator().generateAsString(param)
 
         generatedQrCodeImage.value = generateQrCode(qrCodeContent)
@@ -277,10 +277,6 @@ class MainWindow : View(FX.messages["application.title"]) {
         saveSettings() // TODO: actually a side effect
     }
 
-    private fun map(amount: String): Double? {
-        return DecimalFormat.parse(amount, ParsePosition(0))?.toDouble()
-    }
-
     private fun generateQrCode(informationToEncode: String): Image? {
         try {
             generatedQrCodeBytes = qrCodeGenerator.generateQrCode(informationToEncode)
@@ -296,7 +292,7 @@ class MainWindow : View(FX.messages["application.title"]) {
 
     private fun saveSettings() {
         try {
-            val appSettings = AppSettings(receiver.value, iban.value, bic.value, map(amount.value), reference.value,
+            val appSettings = AppSettings(receiver.value, iban.value, bic.value, amount.value, reference.value,
                 selectedDestinationFile.value)
 
             serializer.serializeObject(appSettings, AppSettingsFile)

EpcQrCodeRest/src/main/kotlin/net/codinux/banking/epcqrcode/rest/dto/GenerateEpcQrCodeRequestDto.kt

@@ -12,7 +12,7 @@ class GenerateEpcQrCodeRequestDto {
 
     var iban: String = ""
 
-    var amount: Double? = null
+    var amount: String? = null
 
     var reference: String? = null
 

EpcQrCodeiOSApp/EpcQrCodeiOSApp/ContentView.swift

@@ -82,21 +82,13 @@ struct ContentView: View {
     
     private func generateQRCode() {
         let creator = EpcQrCodeCreator()
-        let param = EpcQrCodeConfig(receiverName: receiver, iban: iban, bic: bic, amount: map(amount), reference: reference, noteToUser: nil, encoding: .utf8)
+        let param = EpcQrCodeConfig(receiverName: receiver, iban: iban, bic: bic, amount: amount, reference: reference, noteToUser: nil, encoding: .utf8)
         
         let qrCodeContent = creator.generateAsString(param: param)
         
         self.generatedQrCode = generateQRCode(qrCodeContent)
     }
     
-    private func map(_ amount: String) -> KotlinDouble? {
-        if let double = Double(amount.replacingOccurrences(of: ",", with: "."))  {
-            return KotlinDouble(double: double)
-        }
-        
-        return nil
-    }
-    
     private func generateQRCode(_ informationToEncode: String) -> UIImage? {
         let writer = ZXQRCodeWriter()