Initial commit: Krow Worker App

lib/state/timecards_controller.dart

@@ -0,0 +1,49 @@
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+
+import '../models/timecard.dart';
+import 'seed.dart';
+
+class TimecardsController extends Notifier<List<Timecard>> {
+  @override
+  List<Timecard> build() => Seed.timecards();
+
+  void add(Timecard card) {
+    state = [card, ...state];
+  }
+
+  void approve(String id) {
+    state = [
+      for (final t in state)
+        if (t.id == id) t.copyWith(status: TimecardStatus.approved) else t,
+    ];
+  }
+
+  void dispute(String id, String note) {
+    state = [
+      for (final t in state)
+        if (t.id == id)
+          t.copyWith(status: TimecardStatus.disputed, disputeNote: note)
+        else
+          t,
+    ];
+  }
+
+  Timecard? byId(String id) {
+    for (final t in state) {
+      if (t.id == id) return t;
+    }
+    return null;
+  }
+}
+
+final timecardsProvider = NotifierProvider<TimecardsController, List<Timecard>>(
+  TimecardsController.new,
+);
+
+/// Timecards still waiting on the worker to confirm or dispute.
+final timecardsNeedingReviewProvider = Provider<List<Timecard>>((ref) {
+  return ref
+      .watch(timecardsProvider)
+      .where((t) => t.status == TimecardStatus.needsReview)
+      .toList();
+});