Initial commit: Krow Worker App

lib/state/compliance_controller.dart

@@ -0,0 +1,178 @@
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+
+import '../models/compliance.dart';
+import 'seed.dart';
+
+/// The four compliance sections, each a list the worker can act on.
+enum ComplianceSection { documents, certificates, taxForms, wardrobe }
+
+extension ComplianceSectionX on ComplianceSection {
+  String get title => switch (this) {
+    ComplianceSection.documents => 'Documents',
+    ComplianceSection.certificates => 'Certificates',
+    ComplianceSection.taxForms => 'Tax forms',
+    ComplianceSection.wardrobe => 'Attire',
+  };
+
+  String get subtitle => switch (this) {
+    ComplianceSection.documents => 'ID, SSN, work permit, address',
+    ComplianceSection.certificates => 'Food handler, RBS and more',
+    ComplianceSection.taxForms => 'Form I-9 and Form W-4',
+    ComplianceSection.wardrobe => "Photos of what you'll wear",
+  };
+}
+
+class ComplianceData {
+  const ComplianceData({
+    required this.documents,
+    required this.certificates,
+    required this.taxForms,
+    required this.wardrobe,
+  });
+
+  final List<ComplianceItem> documents;
+  final List<ComplianceItem> certificates;
+  final List<ComplianceItem> taxForms;
+  final List<ComplianceItem> wardrobe;
+
+  List<ComplianceItem> section(ComplianceSection s) => switch (s) {
+    ComplianceSection.documents => documents,
+    ComplianceSection.certificates => certificates,
+    ComplianceSection.taxForms => taxForms,
+    ComplianceSection.wardrobe => wardrobe,
+  };
+
+  List<ComplianceItem> get all => [
+    ...documents,
+    ...certificates,
+    ...taxForms,
+    ...wardrobe,
+  ];
+
+  ComplianceData copyWith({
+    List<ComplianceItem>? documents,
+    List<ComplianceItem>? certificates,
+    List<ComplianceItem>? taxForms,
+    List<ComplianceItem>? wardrobe,
+  }) => ComplianceData(
+    documents: documents ?? this.documents,
+    certificates: certificates ?? this.certificates,
+    taxForms: taxForms ?? this.taxForms,
+    wardrobe: wardrobe ?? this.wardrobe,
+  );
+}
+
+class ComplianceController extends Notifier<ComplianceData> {
+  @override
+  ComplianceData build() => ComplianceData(
+    documents: Seed.documents(),
+    certificates: Seed.certificates(),
+    taxForms: Seed.taxForms(),
+    wardrobe: Seed.wardrobe(),
+  );
+
+  List<ComplianceItem> _apply(
+    List<ComplianceItem> list,
+    String id,
+    ComplianceItem Function(ComplianceItem) f,
+  ) => [
+    for (final i in list)
+      if (i.id == id) f(i) else i,
+  ];
+
+  void _update(
+    ComplianceSection section,
+    String id,
+    ComplianceItem Function(ComplianceItem) f,
+  ) {
+    final s = state;
+    state = switch (section) {
+      ComplianceSection.documents => s.copyWith(
+        documents: _apply(s.documents, id, f),
+      ),
+      ComplianceSection.certificates => s.copyWith(
+        certificates: _apply(s.certificates, id, f),
+      ),
+      ComplianceSection.taxForms => s.copyWith(
+        taxForms: _apply(s.taxForms, id, f),
+      ),
+      ComplianceSection.wardrobe => s.copyWith(
+        wardrobe: _apply(s.wardrobe, id, f),
+      ),
+    };
+  }
+
+  /// Stand-in for the camera / file picker: attaching a file sends the item
+  /// back for review.
+  void uploadFile(ComplianceSection section, String id, String fileName) {
+    _update(
+      section,
+      id,
+      (i) => i.copyWith(
+        state: ComplianceState.pending,
+        statusLabel: 'In review',
+        fileName: fileName,
+        fileMeta: 'Uploaded just now',
+      ),
+    );
+  }
+
+  void removeFile(ComplianceSection section, String id) {
+    _update(
+      section,
+      id,
+      (i) => ComplianceItem(
+        id: i.id,
+        title: i.title,
+        subtitle: i.subtitle,
+        state: ComplianceState.missing,
+        statusLabel: 'Not added',
+        required_: i.required_,
+      ),
+    );
+  }
+
+  void setExpiry(ComplianceSection section, String id, DateTime date) {
+    _update(section, id, (i) => i.copyWith(expires: date));
+  }
+
+  ComplianceItem? find(ComplianceSection section, String id) {
+    for (final i in state.section(section)) {
+      if (i.id == id) return i;
+    }
+    return null;
+  }
+}
+
+final complianceProvider =
+    NotifierProvider<ComplianceController, ComplianceData>(
+      ComplianceController.new,
+    );
+
+/// `(verified, total)` across every required item — what the hub reports.
+final complianceProgressProvider = Provider<(int, int)>((ref) {
+  final items = ref.watch(complianceProvider).all.where((i) => i.required_);
+  final total = items.length;
+  final done = items.where((i) => i.state == ComplianceState.verified).length;
+  return (done, total);
+});
+
+/// Whether the worker is cleared to take shifts at all.
+final isCompliantProvider = Provider<bool>((ref) {
+  final (done, total) = ref.watch(complianceProgressProvider);
+  return done == total;
+});
+
+final sectionProgressProvider = Provider.family<(int, int), ComplianceSection>((
+  ref,
+  section,
+) {
+  final items = ref
+      .watch(complianceProvider)
+      .section(section)
+      .where((i) => i.required_);
+  return (
+    items.where((i) => i.state == ComplianceState.verified).length,
+    items.length,
+  );
+});