Adds support for currency display (#277)

* Adds a helper function for rendering currency data

* Update helper functions for StockItem model

* Render purchasePrice correctly for stockitem

* Use currency_formatter library instead of money_formatter

* Add total price display for purchase order

* icon fix

assets/release_notes.md

@@ -4,6 +4,7 @@
 ### 0.10.2 - March 2023
 ---
 
+- Adds support for proper currency rendering
 - Fix icon for supplier part detail widget
 
 ### 0.10.1 - February 2023 

lib/helpers.dart

@@ -8,6 +8,7 @@
  */
 
 import "dart:io";
+import "package:currency_formatter/currency_formatter.dart";
 
 import "package:audioplayers/audioplayers.dart";
 import "package:one_context/one_context.dart";
@@ -77,3 +78,23 @@ Future<void> playAudioFile(String path) async {
   final player = AudioPlayer();
   player.play(AssetSource(path));
 }
+
+
+/*
+ * Helper function for rendering a money / currency object as a String
+ */
+String renderCurrency(double? amount, String currency, {int decimals = 2}) {
+
+  if (amount == null) return "-";
+  if (amount.isInfinite || amount.isNaN) return "-";
+
+  CurrencyFormatterSettings backupSettings = CurrencyFormatterSettings(
+    symbol: "\$",
+    symbolSide: SymbolSide.left,
+  );
+
+  return CurrencyFormatter.format(
+    amount,
+    CurrencyFormatter.majors[currency.toLowerCase()] ?? backupSettings
+  );
+}

lib/inventree/purchase_order.dart

@@ -89,6 +89,18 @@ class InvenTreePurchaseOrder extends InvenTreeModel {
 
   bool get isFailed => status == PO_STATUS_CANCELLED || status == PO_STATUS_LOST || status == PO_STATUS_RETURNED;
 
+  double? get totalPrice {
+    String price = (jsondata["total_price"] ?? "") as String;
+
+    if (price.isEmpty) {
+      return null;
+    } else {
+      return double.tryParse(price);
+    }
+  }
+
+  String get totalPriceCurrency => (jsondata["total_price_currency"] ?? "") as String;
+
   Future<List<InvenTreePOLineItem>> getLineItems() async {
 
     final results = await InvenTreePOLineItem().list(

lib/inventree/stock.dart

@@ -206,6 +206,8 @@ class InvenTreeStockItem extends InvenTreeModel {
       },
       "status": {},
       "batch": {},
+      "purchase_price": {},
+      "purchase_price_currency": {},
       "packaging": {},
       "link": {},
     };
@@ -284,13 +286,21 @@ class InvenTreeStockItem extends InvenTreeModel {
 
   int get partId => (jsondata["part"] ?? -1) as int;
   
-  String get purchasePrice => (jsondata["purchase_price"] ?? "") as String;
+  double? get purchasePrice {
+    String pp = (jsondata["purchase_price"] ?? "") as String;
+
+    if (pp.isEmpty) {
+      return null;
+    } else {
+      return double.tryParse(pp);
+    }
+  }
+
+  String get purchasePriceCurrency => (jsondata["purchase_price_currency"] ?? "") as String;
 
   bool get hasPurchasePrice {
-
-    String pp = purchasePrice;
-
-    return pp.isNotEmpty && pp.trim() != "-";
+    double? pp = purchasePrice;
+    return pp != null && pp > 0;
   }
 
   int get purchaseOrderId => (jsondata["purchase_order"] ?? -1) as int;
@@ -613,7 +623,7 @@ class InvenTreeStockItem extends InvenTreeModel {
 
       return result;
     }
-}
+  }
 
 
 /*

lib/l10n/app_en.arb

@@ -1180,6 +1180,9 @@
   "tokenMissingFromResponse": "Access token missing from response",
   "@tokenMissingFromResponse": {},
 
+  "totalPrice": "Total Price",
+  "@totalPrice": {},
+
   "transfer": "Transfer",
   "@transfer": {
     "description": "transfer"

lib/widget/purchase_order_detail.dart

@@ -158,6 +158,14 @@ class _PurchaseOrderDetailState extends RefreshableState<PurchaseOrderDetailWidg
       },
     ));
 
+    tiles.add(ListTile(
+      title: Text(L10().totalPrice),
+      leading: FaIcon(FontAwesomeIcons.dollarSign),
+      trailing: Text(
+        renderCurrency(widget.order.totalPrice, widget.order.totalPriceCurrency)
+      ),
+    ));
+
     tiles.add(ListTile(
       title: Text(L10().received),
       leading: FaIcon(FontAwesomeIcons.clipboardCheck, color: COLOR_CLICK),
@@ -407,7 +415,7 @@ class _PurchaseOrderDetailState extends RefreshableState<PurchaseOrderDetailWidg
       onTap: onTabSelectionChanged,
       items: [
         BottomNavigationBarItem(
-          icon: FaIcon(FontAwesomeIcons.info),
+          icon: FaIcon(FontAwesomeIcons.circleInfo),
           label: L10().details
         ),
         BottomNavigationBarItem(

lib/widget/stock_detail.dart

@@ -4,6 +4,7 @@ import "package:font_awesome_flutter/font_awesome_flutter.dart";
 
 import "package:inventree/app_colors.dart";
 import "package:inventree/barcode.dart";
+import "package:inventree/helpers.dart";
 import "package:inventree/l10.dart";
 import "package:inventree/api.dart";
 import "package:inventree/api_form.dart";
@@ -675,7 +676,9 @@ class _StockItemDisplayState extends RefreshableState<StockDetailWidget> {
         ListTile(
           title: Text(L10().purchasePrice),
           leading: FaIcon(FontAwesomeIcons.dollarSign),
-          trailing: Text(widget.item.purchasePrice),
+          trailing: Text(
+            renderCurrency(widget.item.purchasePrice, widget.item.purchasePriceCurrency)
+          )
         )
       );
     }

pubspec.lock

@@ -257,6 +257,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.0.5"
+  currency_formatter:
+    dependency: "direct main"
+    description:
+      name: currency_formatter
+      sha256: "24034a969f21a55071b1cf835655c1fb1fd94e3acd498a77283e945002591fb6"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.0"
   datetime_picker_formfield:
     dependency: "direct main"
     description:
@@ -1034,6 +1042,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.3.1"
+  universal_io:
+    dependency: transitive
+    description:
+      name: universal_io
+      sha256: "06866290206d196064fd61df4c7aea1ffe9a4e7c4ccaa8fcded42dd41948005d"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.0"
   url_launcher:
     dependency: "direct main"
     description:

pubspec.yaml

@@ -11,6 +11,7 @@ dependencies:
   cached_network_image: ^3.2.0            # Download and cache remote images
   camera: ^0.10.3                         # Camera
   cupertino_icons: ^1.0.3
+  currency_formatter: ^2.0.0
   datetime_picker_formfield: ^2.0.0       # Date / time picker
   device_info_plus: ^8.0.0                # Information about the device
   dropdown_search: ^5.0.5                 # Dropdown autocomplete form fields