From a2c2285cc3636fabe3856989446a1c47df328dfe Mon Sep 17 00:00:00 2001
From: Claudio Paccone <claudio.paccone@gmail.com>
Date: Mon, 29 May 2017 18:44:40 +0200
Subject: [PATCH] =?UTF-8?q?Add=20convenience=20method=20to=20get=20formatt?=
 =?UTF-8?q?ed=20value=20from=20=E2=80=98FieldValue=E2=80=99=20(#27)?=
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* Add convenience method to get formatted value from ‘FieldValue’

* Add ‘InvalidFieldValueException’

* Fix ‘formatNumberGrouping’ extension function

* Add extension functions for unformatted number value
---
 src/main/kotlin/it/facile/form/Exceptions.kt  |  5 +++++
 .../it/facile/form/ui/utils/FormatterUtil.kt  | 20 ++++++++++++++++++-
 2 files changed, 24 insertions(+), 1 deletion(-)
 create mode 100644 src/main/kotlin/it/facile/form/Exceptions.kt

diff --git a/src/main/kotlin/it/facile/form/Exceptions.kt b/src/main/kotlin/it/facile/form/Exceptions.kt
new file mode 100644
index 0000000..ae40097
--- /dev/null
+++ b/src/main/kotlin/it/facile/form/Exceptions.kt
@@ -0,0 +1,5 @@
+package it.facile.form
+
+import it.facile.form.storage.FieldValue
+
+class InvalidFieldValueException(fieldValue: FieldValue, override val message: String?) : Exception("Invalid FieldValue: $fieldValue")
\ No newline at end of file
diff --git a/src/main/kotlin/it/facile/form/ui/utils/FormatterUtil.kt b/src/main/kotlin/it/facile/form/ui/utils/FormatterUtil.kt
index 3b20374..75669f7 100644
--- a/src/main/kotlin/it/facile/form/ui/utils/FormatterUtil.kt
+++ b/src/main/kotlin/it/facile/form/ui/utils/FormatterUtil.kt
@@ -1,5 +1,6 @@
 package it.facile.form.ui.utils
 
+import it.facile.form.storage.FieldValue
 import java.text.DecimalFormat
 import java.text.DecimalFormatSymbols
 import java.text.ParseException
@@ -20,4 +21,21 @@ fun String.formatNumberGrouping(separator: Char): String {
     }
 
     return decimalFormat.format(number)
-}
\ No newline at end of file
+}
+
+fun FieldValue.Text.formatNumberGrouping(separator: Char) = text.formatNumberGrouping(separator)
+
+fun String.getUnformattedNumberWithGrouping(separator: Char): Number? {
+    val symbols = DecimalFormatSymbols(Locale.ITALY).apply { groupingSeparator = separator }
+    val decimalFormat = DecimalFormat("###,###.###", symbols)
+
+    val stringWithoutSeparator = this.replace(separator.toString(), "")
+
+    return try {
+        decimalFormat.parse(stringWithoutSeparator)
+    } catch (pe: ParseException) {
+        return null
+    }
+}
+
+fun FieldValue.Text.getUnformattedNumberWithGrouping(separator: Char) = text.getUnformattedNumberWithGrouping(separator)