ASAA-122 - Moved Double.toCurrency from ignite to library

kmp-launchpad-compose/build.gradle.kts

@@ -45,6 +45,8 @@ kotlin {
             implementation(compose.ui)
         }
         commonTest.dependencies {
+            implementation(kotlin("test-common"))
+            implementation(kotlin("test-annotations-common"))
             implementation(libs.kotlin.test)
         }
     }

kmp-launchpad-compose/src/androidMain/kotlin/com/bottlerocketstudios/launchpad/compose/util/CurrencyUtils.android.kt

@@ -0,0 +1,11 @@
+package com.bottlerocketstudios.launchpad.compose.util
+
+import java.text.NumberFormat
+import java.util.Currency
+import java.util.Locale
+
+actual fun Double?.toCurrency(): String {
+    val numberFormat = NumberFormat.getCurrencyInstance()
+    numberFormat.currency = Currency.getInstance(Locale.getDefault())
+    return numberFormat.format(this ?: 0.0)
+}

kmp-launchpad-compose/src/androidUnitTest/kotlin/com/bottlerocketstudios/launchpad/compose/CurrencyUtilsTest.kt

@@ -0,0 +1,21 @@
+package com.bottlerocketstudios.launchpad.compose
+
+import com.bottlerocketstudios.launchpad.compose.util.toCurrency
+import java.util.Locale
+import kotlin.test.Test
+import kotlin.test.assertEquals
+
+
+class CurrencyUtilsTest {
+
+    @Test
+    fun `test double toCurrency`() {
+        Locale.setDefault(Locale.US)
+
+        val input = 1234.56
+        val expectedOutput = "$1,234.56"
+        val actualOutput = input.toCurrency()
+
+        assertEquals(expectedOutput, actualOutput)
+    }
+}

kmp-launchpad-compose/src/commonMain/kotlin/com/bottlerocketstudios/launchpad/compose/util/CurrencyUtils.kt

@@ -0,0 +1,15 @@
+package com.bottlerocketstudios.launchpad.compose.util
+
+
+/**
+ * Kotlin Multiplatform function - convertToCurrencyString
+ *
+ * This function takes a Double value representing a raw amount of currency,
+ * and returns a String representing that amount formatted appropriately as
+ * currency for the current locale of the device running the code.
+ *
+ * @param [amount] The raw amount of currency as a Double
+ * @return A string representing that amount in the appropriate currency
+ *         format for the device's current locale.
+ */
+expect fun Double?.toCurrency(): String

kmp-launchpad-compose/src/iosMain/kotlin/com/bottlerocketstudios/launchpad/compose/util/CurrencyUtils.ios.kt

@@ -0,0 +1,17 @@
+package com.bottlerocketstudios.launchpad.compose.util
+
+import platform.Foundation.NSLocale
+import platform.Foundation.NSNumber
+import platform.Foundation.NSNumberFormatter
+import platform.Foundation.NSNumberFormatterCurrencyStyle
+import platform.Foundation.currentLocale
+import platform.Foundation.numberWithDouble
+
+actual fun Double?.toCurrency(): String {
+    val formatter = NSNumberFormatter()
+    formatter.numberStyle = NSNumberFormatterCurrencyStyle
+    formatter.locale = NSLocale.currentLocale()
+
+    val number = NSNumber.numberWithDouble(this ?: 0.0)
+    return formatter.stringFromNumber(number) ?: "NaN"
+}