Payslips: format amounts in the org currency

/api/v1/me/payslips items and /api/v1/me/profile now carry the org base
currency. Payslip and Profile read it; the payslips screen formats with
the payslip currency, else the last profile's, else INR. INR output is
unchanged (rupee sign, lakh grouping, no decimals); other currencies show
the ISO code with their own minor units (AED 1,234.50, BHD 1,234.500).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

lib/api_service.dart

@@ -14,6 +14,8 @@ class Profile {
   final String gid, fullName, role;
   final String? employeeCode, departmentName, designationTitle, reportingManagerName;
   final bool isManager;
+  /// Org base currency (ISO 4217); null on older servers ⇒ INR.
+  final String? currency;
   Profile.fromJson(Map<String, dynamic> j)
       : gid = j['gid'] ?? '',
         fullName = j['fullName'] ?? '',
@@ -22,7 +24,8 @@ class Profile {
         departmentName = j['departmentName'],
         designationTitle = j['designationTitle'],
         reportingManagerName = j['reportingManagerName'],
-        isManager = j['isManager'] == true;
+        isManager = j['isManager'] == true,
+        currency = j['currency'] as String?;
 }
 
 class Today {
@@ -81,13 +84,16 @@ class LeaveRequest {
 class Payslip {
   final String gid, periodMonth, status;
   final num gross, totalDeductions, netPay;
+  /// Org base currency (ISO 4217); null on older servers ⇒ INR.
+  final String? currency;
   Payslip.fromJson(Map<String, dynamic> j)
       : gid = j['gid'] ?? '',
         periodMonth = j['periodMonth'] ?? '',
         status = j['status'] ?? '',
         gross = j['gross'] ?? 0,
         totalDeductions = j['totalDeductions'] ?? 0,
-        netPay = j['netPay'] ?? 0;
+        netPay = j['netPay'] ?? 0,
+        currency = j['currency'] as String?;
 }
 
 class TeamMember {
@@ -110,6 +116,9 @@ class ApiService {
   final Settings settings;
   ApiService(this.settings);
 
+  /// Org base currency from the last profile seen (login or /me/profile).
+  String? currency;
+
   Uri _uri(String p, [Map<String, String>? q]) =>
       Uri.parse('${Settings.baseUrl}$p').replace(queryParameters: q);
 
@@ -135,12 +144,17 @@ class ApiService {
       throw ApiException(_msg(body) ?? 'Invalid email or PIN', res.statusCode);
     }
     final p = Profile.fromJson(body['profile'] as Map<String, dynamic>);
+    currency = p.currency ?? currency;
     await settings.saveSession(token: body['accessToken'] as String, name: p.fullName, role: p.role);
     return p;
   }
 
   // ---- me ----
-  Future<Profile> profile() async => Profile.fromJson(await _get('/api/v1/me/profile'));
+  Future<Profile> profile() async {
+    final p = Profile.fromJson(await _get('/api/v1/me/profile'));
+    currency = p.currency ?? currency;
+    return p;
+  }
   Future<Today> today() async => Today.fromJson(await _get('/api/v1/me/attendance/today'));
 
   Future<void> checkIn({double? lat, double? lng, String? selfie}) =>

lib/money.dart

@@ -0,0 +1,18 @@
+import 'package:intl/intl.dart';
+
+/// Formats a payroll amount in the organisation's currency.
+///
+/// [currency] is the ISO 4217 code the server sends on payslips / profile
+/// (`currency`). Missing or blank ⇒ INR, which keeps the original output:
+/// rupee sign, Indian lakh grouping, no decimals (e.g. `₹1,23,457`).
+/// Other currencies print the ISO code and the currency's own minor units
+/// (e.g. `AED 12,345.50`, `BHD 1,234.500`).
+String formatMoney(num v, [String? currency]) {
+  final code = (currency ?? '').trim().toUpperCase();
+  if (code.isEmpty || code == 'INR') {
+    return '₹${NumberFormat('#,##,###').format(v)}';
+  }
+  // NumberFormat.currency picks the ISO default fraction digits for `name`
+  // (BHD/KWD/OMR 3, JPY 0, most others 2).
+  return NumberFormat.currency(locale: 'en', name: code, symbol: '$code ').format(v);
+}

lib/screens/payslips_screen.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:intl/intl.dart';
 import '../api_service.dart';
+import '../money.dart';
 import '../theme.dart';
 
 class PayslipsScreen extends StatefulWidget {
@@ -40,7 +41,8 @@ class _PayslipsScreenState extends State<PayslipsScreen> {
     }
   }
 
-  String _inr(num v) => '₹${NumberFormat('#,##,###').format(v)}';
+  /// Payslip currency, else the profile's, else INR (older servers).
+  String _money(Payslip p, num v) => formatMoney(v, p.currency ?? widget.api.currency);
 
   @override
   Widget build(BuildContext context) {
@@ -62,7 +64,7 @@ class _PayslipsScreenState extends State<PayslipsScreen> {
               title: Text(_month(p.periodMonth), style: const TextStyle(fontWeight: FontWeight.w600)),
               subtitle: const Text('Net pay'),
               trailing: Column(mainAxisAlignment: MainAxisAlignment.center, crossAxisAlignment: CrossAxisAlignment.end, children: [
-                Text(_inr(p.netPay), style: const TextStyle(fontSize: 16, fontWeight: FontWeight.bold, color: AppColors.emerald)),
+                Text(_money(p, p.netPay), style: const TextStyle(fontSize: 16, fontWeight: FontWeight.bold, color: AppColors.emerald)),
                 Text(p.status, style: const TextStyle(fontSize: 11, color: AppColors.muted)),
               ]),
               onTap: () => showModalBottomSheet(
@@ -72,10 +74,10 @@ class _PayslipsScreenState extends State<PayslipsScreen> {
                   child: Column(mainAxisSize: MainAxisSize.min, crossAxisAlignment: CrossAxisAlignment.stretch, children: [
                     Text(_month(p.periodMonth), style: const TextStyle(fontSize: 18, fontWeight: FontWeight.bold, color: AppColors.navy)),
                     const SizedBox(height: 16),
-                    _row('Gross earnings', _inr(p.gross)),
-                    _row('Total deductions', '− ${_inr(p.totalDeductions)}'),
+                    _row('Gross earnings', _money(p, p.gross)),
+                    _row('Total deductions', '− ${_money(p, p.totalDeductions)}'),
                     const Divider(height: 24),
-                    _row('Net pay', _inr(p.netPay), bold: true),
+                    _row('Net pay', _money(p, p.netPay), bold: true),
                     const SizedBox(height: 16),
                     const Text('Full PDF payslip is available on the Scalar360 web portal.',
                         style: TextStyle(fontSize: 12, color: AppColors.muted)),