From ac1d538237f5e96e473d502da905c266ef5c9dc6 Mon Sep 17 00:00:00 2001
From: Eric Emery <eric.emery@bottlerocketstudios.com>
Date: Thu, 7 Dec 2023 14:04:11 -0600
Subject: [PATCH] ASAA-122 - Moved Double.toCurrency from ignite to library

---
 kmp-launchpad-compose/build.gradle.kts        |  2 ++
 .../compose/util/CurrencyUtils.android.kt     | 11 ++++++++++
 .../launchpad/compose/CurrencyUtilsTest.kt    | 21 +++++++++++++++++++
 .../launchpad/compose/util/CurrencyUtils.kt   | 15 +++++++++++++
 .../compose/util/CurrencyUtils.ios.kt         | 17 +++++++++++++++
 5 files changed, 66 insertions(+)
 create mode 100644 kmp-launchpad-compose/src/androidMain/kotlin/com/bottlerocketstudios/launchpad/compose/util/CurrencyUtils.android.kt
 create mode 100644 kmp-launchpad-compose/src/androidUnitTest/kotlin/com/bottlerocketstudios/launchpad/compose/CurrencyUtilsTest.kt
 create mode 100644 kmp-launchpad-compose/src/commonMain/kotlin/com/bottlerocketstudios/launchpad/compose/util/CurrencyUtils.kt
 create mode 100644 kmp-launchpad-compose/src/iosMain/kotlin/com/bottlerocketstudios/launchpad/compose/util/CurrencyUtils.ios.kt

diff --git a/kmp-launchpad-compose/build.gradle.kts b/kmp-launchpad-compose/build.gradle.kts
index 26651f7..19ad2f6 100644
--- a/kmp-launchpad-compose/build.gradle.kts
+++ b/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)
         }
     }
diff --git a/kmp-launchpad-compose/src/androidMain/kotlin/com/bottlerocketstudios/launchpad/compose/util/CurrencyUtils.android.kt b/kmp-launchpad-compose/src/androidMain/kotlin/com/bottlerocketstudios/launchpad/compose/util/CurrencyUtils.android.kt
new file mode 100644
index 0000000..f3354ec
--- /dev/null
+++ b/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)
+}
diff --git a/kmp-launchpad-compose/src/androidUnitTest/kotlin/com/bottlerocketstudios/launchpad/compose/CurrencyUtilsTest.kt b/kmp-launchpad-compose/src/androidUnitTest/kotlin/com/bottlerocketstudios/launchpad/compose/CurrencyUtilsTest.kt
new file mode 100644
index 0000000..8a6492c
--- /dev/null
+++ b/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)
+    }
+}
\ No newline at end of file
diff --git a/kmp-launchpad-compose/src/commonMain/kotlin/com/bottlerocketstudios/launchpad/compose/util/CurrencyUtils.kt b/kmp-launchpad-compose/src/commonMain/kotlin/com/bottlerocketstudios/launchpad/compose/util/CurrencyUtils.kt
new file mode 100644
index 0000000..73659a3
--- /dev/null
+++ b/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
diff --git a/kmp-launchpad-compose/src/iosMain/kotlin/com/bottlerocketstudios/launchpad/compose/util/CurrencyUtils.ios.kt b/kmp-launchpad-compose/src/iosMain/kotlin/com/bottlerocketstudios/launchpad/compose/util/CurrencyUtils.ios.kt
new file mode 100644
index 0000000..14fbbe7
--- /dev/null
+++ b/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"
+}