Basic Functions done

lib/newActivity.dart

@@ -12,17 +12,23 @@ class NewActivity extends StatefulWidget {
   _NewActivity createState() => _NewActivity();
 }
 
-List<String> getActivitiesNames(){
+String selectedCat = User.taskTypes[0].name;
+
+List<String> getActivities(){
   List<String> _cats = [];
-  User.activities.forEach((element) {
-    String name = element.taskType.name;
-    _cats.add(name);
+  print(User.taskTypes[0].name + " : " + selectedCat);
+  User.taskTypes.forEach((element) {
+    String name = element.name;
+    if(_cats.contains(element.name)){
+
+    }else{
+    _cats.add(name);}
   });
   return _cats;
 }
 
 class _NewActivity extends State<NewActivity> {
-  String value = 'CS:GO';
+
   DateTime startTime = DateTime.now();
   DateTime endTime = DateTime.now().add(Duration(minutes: 30));
   @override
@@ -57,24 +63,19 @@ class _NewActivity extends State<NewActivity> {
                                         iconSize: 30,
                                         elevation: 10,
                                         borderRadius: BorderRadius.circular(10),
-                                        value: value,
+                                        value: selectedCat,
                                         isExpanded: true,
-                                        items: <String>[
-                                          'Rocket League',
-                                          'CS:GO',
-                                          'HALO',
-                                          'Unity',
-                                          'Add new Task Type...'
-                                        ].map<DropdownMenuItem<String>>(
-                                            (String value) {
-                                          return DropdownMenuItem<String>(
-                                            value: value,
-                                            child: Text(value),
-                                          );
-                                        }).toList(),
+                                        items: getActivities().map<DropdownMenuItem<String>>(
+                                                (String value) {
+                                                  print(value);
+                                              return DropdownMenuItem<String>(
+                                                value: value,
+                                                child: Text(value),
+                                              );
+                                            }).toList(),
                                         onChanged: (String? _value) {
                                           setState(() {
-                                            value = _value!;
+                                            selectedCat = _value ?? 'n/a';
                                           });
                                         })),
                                 Container(
@@ -101,7 +102,14 @@ class _NewActivity extends State<NewActivity> {
                                               // print('change $date');
                                             }, onConfirm: (date) {
                                               setState(() {
-                                                startTime = date;
+                                                if(endTime.compareTo(date) < 0){
+                                                  const snackBar = SnackBar(
+                                                    content: Text('You cannot start something after you ended it!'),
+                                                  );
+                                                  ScaffoldMessenger.of(context).showSnackBar(snackBar);
+                                                }else {
+                                                  startTime = date;
+                                                }
                                               });
                                             },
                                                 currentTime: startTime,
@@ -136,7 +144,14 @@ class _NewActivity extends State<NewActivity> {
                                               // print('change $date');
                                             }, onConfirm: (date) {
                                               setState(() {
-                                                endTime = date;
+                                                if(startTime.compareTo(date) > 0){
+                                                  const snackBar = SnackBar(
+                                                    content: Text('You cannot end something before you start it!'),
+                                                  );
+                                                  ScaffoldMessenger.of(context).showSnackBar(snackBar);
+                                                }else {
+                                                  endTime = date;
+                                                }
                                               });
                                             },
                                                 currentTime: endTime,
@@ -151,7 +166,10 @@ class _NewActivity extends State<NewActivity> {
                                 ),
                                 Text('Duration : ' +
                                     _printDuration(
-                                        endTime.difference(startTime))),
+                                        endTime.difference(startTime)),
+                                    style:TextStyle(
+                                      fontSize: 20,
+                                )),
                                 Divider(
                                   height: 30,
                                 ),
@@ -192,7 +210,12 @@ class _NewActivity extends State<NewActivity> {
                                       shape: StadiumBorder()
                                   ),
                                   onPressed: () {
-                                    setState(() {});
+
+                                    add_action();
+                                    setState(() {
+
+                                    });
+
                                   },
                                   child: Text('Add Entry',
                                       style: TextStyle(fontSize: 20))))),
@@ -200,6 +223,20 @@ class _NewActivity extends State<NewActivity> {
                       ))
                 ])));
   }
+
+  void add_action() async{
+
+    print('adding Task Type : $selectedCat at $startTime - $endTime');
+    bool failed=false;
+    await User.UserOperations.addActivity(selectedCat,startTime.toString(), endTime.toString(), onOverlap: (overlapCount){
+      showAlertDialog(context, 'Error adding activity', 'Cannot add activity between ${dateFormat.format(startTime)} - ${dateFormat.format(endTime)}, $overlapCount activities are already added within this time range');
+      failed=true;
+
+    });
+
+    if(!failed)
+      Navigator.of(context).pop();
+  }
 }
 
 String _printDuration(Duration duration) {
@@ -208,3 +245,29 @@ String _printDuration(Duration duration) {
   String twoDigitSeconds = twoDigits(duration.inSeconds.remainder(60));
   return "${twoDigits(duration.inHours)}:$twoDigitMinutes:$twoDigitSeconds";
 }
+
+showAlertDialog(BuildContext context, String title, String message) {
+
+  // set up the button
+  Widget okButton = TextButton(
+    child: Text("OK"),
+    onPressed: () { Navigator.of(context).pop(); },
+  );
+
+  // set up the AlertDialog
+  AlertDialog alert = AlertDialog(
+    title: Text(title),
+    content: Text(message),
+    actions: [
+      okButton,
+    ],
+  );
+
+  // show the dialog
+  showDialog(
+    context: context,
+    builder: (BuildContext context) {
+      return alert;
+    },
+  );
+}