detail page item add dialog

lib/pages/detail_checklist_page.dart

@@ -1,4 +1,5 @@
 import 'package:briessenchecker/models/checklist.dart';
+import 'package:briessenchecker/models/listitem.dart';
 import 'package:briessenchecker/services/checklist_provider.dart';
 import 'package:briessenchecker/services/dbhelper.dart';
 import 'package:flutter/material.dart';
@@ -6,6 +7,7 @@ import 'package:provider/provider.dart';
 
 class DetailChecklistPage extends StatefulWidget {
   const DetailChecklistPage({super.key});
+
   static const routeName = '/detail';
 
   @override
@@ -13,44 +15,98 @@ class DetailChecklistPage extends StatefulWidget {
 }
 
 class _DetailChecklistPageState extends State<DetailChecklistPage> {
-  late final ChecklistProvider checklistProvider;
-  late Future<Checklist> checklistFuture;
-
-  @override
-  void initState() {
-    super.initState();
-    checklistProvider = Provider.of<ChecklistProvider>(context, listen: false);
-    checklistFuture =
-        DbHelper.getChecklistById(checklistProvider.selectedChecklistId!);
-  }
+  late Future<Checklist> _checklistFuture;
+  late final ChecklistProvider _checklistProvider;
+  int? _selectedItemId;
+  late Checklist _currentChecklist;
 
   @override
   void dispose() {
     super.dispose();
-    checklistProvider.updateSelectedChecklist(null, silent: true);
+    _checklistProvider.updateSelectedChecklist(null, silent: true);
   }
 
   @override
-  Widget build(BuildContext context) {
-    return Scaffold(
-      body: FutureBuilder(
-        future: checklistFuture,
-        builder: _futureBuilder,
-      ),
-    );
+  void initState() {
+    super.initState();
+    _checklistProvider = Provider.of<ChecklistProvider>(context, listen: false);
+    _checklistFuture = DbHelper.getChecklistById(1);
   }
 
   Widget _futureBuilder(
       BuildContext context, AsyncSnapshot<Checklist> snapshot) {
     if (snapshot.hasData) {
+      _currentChecklist = snapshot.data!;
       return Column(
         children: [
-          Text(snapshot.data!.title),
-          Text(snapshot.data!.description),
+          Text(_currentChecklist.title),
+          Text(_currentChecklist.description),
         ],
       );
     } else {
       return const CircularProgressIndicator();
     }
   }
+
+  void _addItemTapped() {
+    showDialog(context: context, builder: _addItemDialog);
+  }
+
+  Widget _addItemDialog(BuildContext context) {
+    TextEditingController titleCon = TextEditingController();
+    TextEditingController descCon = TextEditingController();
+    if (_selectedItemId != null) {
+      final item = _currentChecklist.items.elementAt(_selectedItemId!);
+      titleCon.text = item.title;
+      descCon.text = item.description;
+    }
+    return AlertDialog(
+      title: const Text('additem'),
+      content: Column(
+        mainAxisSize: MainAxisSize.min,
+        children: [
+          TextFormField(
+            controller: titleCon,
+            decoration: const InputDecoration(
+              label: Text('Title'),
+            ),
+          ),
+          TextFormField(
+            controller: descCon,
+            decoration: const InputDecoration(
+              label: Text('Description'),
+            ),
+          ),
+        ],
+      ),
+      actions: [
+        TextButton(
+          onPressed: () {
+            _itemSaved(titleCon.text, descCon.text);
+            Navigator.of(context).pop();
+          },
+          child: const Text('save'),
+        ),
+      ],
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      body: FutureBuilder(
+        future: _checklistFuture,
+        builder: _futureBuilder,
+      ),
+      floatingActionButton: FloatingActionButton(
+        onPressed: _addItemTapped,
+        child: const Icon(Icons.add),
+      ),
+    );
+  }
+
+  void _itemSaved(String title, String description) {
+    DbHelper.addOrUpdateItem(_checklistProvider.selectedChecklistId!, title,
+        description, _selectedItemId);
+  }
 }