Feature Request: Report (Invoice) -> Group by Date (Quarterly #569

lib/constants.dart

@@ -737,6 +737,7 @@ const String kTaxRegionAustralia = 'AU';
 const String kReportGroupDay = 'day';
 const String kReportGroupWeek = 'week';
 const String kReportGroupMonth = 'month';
+const String kReportGroupQuarter = 'quarter';
 const String kReportGroupYear = 'year';
 
 const int kModuleRecurringInvoices = 1;

lib/ui/reports/reports_screen.dart

@@ -190,6 +190,10 @@ class ReportsScreen extends StatelessWidget {
               child: Text(localization.month),
               value: kReportGroupMonth,
             ),
+            DropdownMenuItem(
+              child: Text(localization.quarter),
+              value: kReportGroupQuarter,
+            ),
             DropdownMenuItem(
               child: Text(localization.year),
               value: kReportGroupYear,

lib/ui/reports/reports_screen_vm.dart

@@ -652,6 +652,19 @@ GroupTotals calculateReportTotals({
         group = group.substring(0, 4) + '-01-01';
       } else if (reportState.subgroup == kReportGroupMonth) {
         group = group.substring(0, 7) + '-01';
+      } else if (reportState.subgroup == kReportGroupQuarter) {
+        final parts = group.split('-');
+        final month = parseInt(parts[1]) ?? 0;
+        group = parts[0] + '-';
+        if (month <= 3) {
+          group += '01-01';
+        } else if (month <= 6) {
+          group += '04-01';
+        } else if (month <= 9) {
+          group += '07-01';
+        } else {
+          group += '10-01';
+        }
       } else if (reportState.subgroup == kReportGroupWeek) {
         final date = DateTime.parse(group);
         final dateWeek =

lib/utils/i18n.dart

@@ -18,6 +18,7 @@ mixin LocalizationsProvider on LocaleCodeAware {
   static final Map<String, Map<String, String>> _localizedValues = {
     'en': {
       // STARTER: lang key - do not remove comment
+      'quarter': 'Quarter',
       'item_description': 'Item Description',
       'task_item': 'Task Item',
       'record_state': 'Record State',
@@ -109940,6 +109941,11 @@ mixin LocalizationsProvider on LocaleCodeAware {
       _localizedValues[localeCode]!['task_item'] ??
       _localizedValues['en']!['task_item']!;
 
+  String get quarter =>
+      _localizedValues[localeCode]!['quarter'] ??
+      _localizedValues['en']!['quarter']!;
+
+
   // STARTER: lang field - do not remove comment
 
   String lookup(String? key) {