b0.2

4 files changed, 26 insertions, 8 deletions

diff --git a/lib/services/ishift_provider_service.dart b/lib/services/ishift_provider_service.dart
index 7f0e6d5..68f4277 100644
--- a/lib/services/ishift_provider_service.dart
+++ b/lib/services/ishift_provider_service.dart
@@ -6,6 +6,6 @@ abstract class IProgramProviderService {
   Future<List<Shift>> getPastShifts();
   Future<List<Shift>> getShiftsForWeek(DateTime firstDayOfWeek);
   Future<void> updateShift(Shift shift);
-  Future<void> addShift(Shift shift);
+  Future<bool> addShift(Shift shift);
   Future<void> deleteShift(Shift shift);
 }
diff --git a/lib/services/local_shift_provider_service.dart b/lib/services/local_shift_provider_service.dart
index 263d747..2d00a1e 100644
--- a/lib/services/local_shift_provider_service.dart
+++ b/lib/services/local_shift_provider_service.dart
@@ -8,9 +8,7 @@ import 'package:in_date_utils/in_date_utils.dart' as DateUtilities;
 import 'package:path_provider/path_provider.dart';
 
 class LocalShiftProviderService extends IProgramProviderService {
-  LocalShiftProviderService() {
-    writeShiftsFromFile([]);
-  }
+  LocalShiftProviderService() {}
 
   Future<String> get _localPath async {
     final directory = await getApplicationDocumentsDirectory();
@@ -19,6 +17,15 @@ class LocalShiftProviderService extends IProgramProviderService {
 
   Future<File> get _localFile async {
     final path = await _localPath;
+    File file = File('$path/shifts.json');
+
+    bool exists = await file.exists();
+    if (!exists) {
+      print('created shifts.json');
+      await file.create();
+      await writeShiftsFromFile([]);
+    }
+
     return File('$path/shifts.json');
   }
 
@@ -67,16 +74,17 @@ class LocalShiftProviderService extends IProgramProviderService {
   }
 
   @override
-  Future<void> addShift(Shift shift) async {
+  Future<bool> addShift(Shift shift) async {
     List<Shift> savedShifts = await readShiftsFromFile();
     for (var item in savedShifts) {
       if (DateUtilities.DateUtils.isSameDay(shift.start, item.start)) {
-        return;
+        return false;
       }
     }
 
     savedShifts.add(shift);
     await writeShiftsFromFile(savedShifts);
+    return true;
   }
 
   @override
diff --git a/lib/services/messaging_service.dart b/lib/services/messaging_service.dart
new file mode 100644
index 0000000..e601abb
--- /dev/null
+++ b/lib/services/messaging_service.dart
@@ -0,0 +1,9 @@
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+
+class MessagingService {
+  void showMessage(BuildContext context, String message) {
+    ScaffoldMessenger.of(context)
+        .showSnackBar(SnackBar(content: Text(message)));
+  }
+}
diff --git a/lib/services/mock_shift_provider_service.dart b/lib/services/mock_shift_provider_service.dart
index 8f8db3e..c7bc865 100644
--- a/lib/services/mock_shift_provider_service.dart
+++ b/lib/services/mock_shift_provider_service.dart
@@ -56,13 +56,14 @@ class MockShiftProviderService extends IProgramProviderService {
   }
 
   @override
-  Future<void> addShift(Shift shift) async {
+  Future<bool> addShift(Shift shift) async {
     for (var item in savedShifts) {
       if (DateUtilities.DateUtils.isSameDay(shift.start, item.start)) {
-        return;
+        return false;
       }
     }
     savedShifts.add(shift);
+    return true;
   }
 
   @override