basic session create and delete

lib/screens/sessions_screen.dart

@@ -1,4 +1,5 @@
 // import 'package:drift/drift.dart' hide Column;
+import 'package:drift/drift.dart' hide Column;
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 import 'package:sendtrain/daos/sessions_dao.dart';
@@ -6,24 +7,30 @@ import 'package:sendtrain/database/database.dart';
 import '../widgets/session_card.dart';
 import 'package:collection/collection.dart';
 
-class SessionsScreen extends StatelessWidget {
+class SessionsScreen extends StatefulWidget {
   const SessionsScreen({super.key});
 
+  @override
+  State<SessionsScreen> createState() => _SessionsScreenState();
+}
+
+class _SessionsScreenState extends State<SessionsScreen> {
   Widget getSessionCard(session) {
     if (session != null) {
       return SessionCard(session: session);
     } else {
       return Padding(
-        padding: EdgeInsets.all(15),
-        child: Icon(Icons.do_not_disturb_alt_outlined)
-      );
+          padding: EdgeInsets.all(15),
+          child: Icon(Icons.do_not_disturb_alt_outlined));
     }
   }
 
   @override
   Widget build(BuildContext context) {
-    return FutureBuilder<List<Session>>(
-        future: SessionsDao(Provider.of<AppDatabase>(context)).all(),
+    SessionsDao dao = SessionsDao(Provider.of<AppDatabase>(context));
+
+    return StreamBuilder<List<Session>>(
+        stream: dao.watch(),
         builder: (context, snapshot) {
           if (snapshot.hasData && snapshot.data!.isNotEmpty) {
             final sessions = snapshot.data!;
@@ -35,8 +42,20 @@ class SessionsScreen extends StatelessWidget {
             final current = sessions.firstWhereOrNull(
                 (session) => session.status == SessionStatus.started);
 
+            if (current == null && upcoming != null) {
+              dao.createOrUpdate(SessionsCompanion(
+                id: Value(upcoming.id),
+                title: Value(upcoming.title),
+                content: Value(upcoming.content),
+                status: Value(SessionStatus.started),
+                address: Value(upcoming.address),
+                date: Value(upcoming.date)
+              ));
+            }
+
             List<Widget> previousSessions = List.generate(pending.length,
                 (i) => SessionCard(type: 1, session: pending.elementAt(i)));
+
             Widget upcomingSession = getSessionCard(upcoming);
             Widget currentSession = getSessionCard(current);