initial version

PortfolioJournal/Utilities/CurrencyFormatter.swift

@@ -0,0 +1,23 @@
+import Foundation
+
+enum CurrencyFormatter {
+    static func currentCurrencyCode() -> String {
+        let context = CoreDataStack.shared.viewContext
+        return AppSettings.getOrCreate(in: context).currency
+    }
+
+    static func format(_ decimal: Decimal, style: NumberFormatter.Style = .currency, maximumFractionDigits: Int = 2) -> String {
+        let formatter = NumberFormatter()
+        formatter.numberStyle = style
+        formatter.currencyCode = currentCurrencyCode()
+        formatter.maximumFractionDigits = maximumFractionDigits
+        return formatter.string(from: decimal as NSDecimalNumber) ?? "\(decimal)"
+    }
+
+    static func symbol(for code: String) -> String {
+        let formatter = NumberFormatter()
+        formatter.numberStyle = .currency
+        formatter.currencyCode = code
+        return formatter.currencySymbol ?? code
+    }
+}