restreindre + et recherche à certains écrans; rendre les comptes modifiables

lib/app.dart

@@ -158,11 +158,13 @@ class _YnabAppState extends ConsumerState<YnabApp> {
               tooltip: 'Fermer la recherche',
             )
           else ...[
+            if (selectedIndex == 0 || selectedIndex == 3)
               IconButton(
                 icon: Icon(Icons.add, color: colorScheme.primary),
                 onPressed: _addTransaction,
                 tooltip: 'Ajouter une transaction',
               ),
+            if (selectedIndex == 2 || selectedIndex == 3)
               IconButton(
                 icon: Icon(Icons.search, color: colorScheme.onSurfaceVariant),
                 onPressed: _toggleSearch,

lib/screens/accounts_screen.dart

@@ -1,3 +1,5 @@
+import 'package:drift/drift.dart' show Value;
+import '../data/db.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import '../providers/db_provider.dart';
@@ -23,7 +25,7 @@ class AccountsScreen extends ConsumerWidget {
   }
 }
 
-class _AccountCard extends StatelessWidget {
+class _AccountCard extends ConsumerWidget {
   final Account account;
   const _AccountCard({required this.account});
 
@@ -47,7 +49,7 @@ class _AccountCard extends StatelessWidget {
   }
 
   @override
-  Widget build(BuildContext context) {
+  Widget build(BuildContext context, WidgetRef ref) {
     return Card(
       margin: const EdgeInsets.only(bottom: 8),
       child: ListTile(
@@ -64,7 +66,85 @@ class _AccountCard extends StatelessWidget {
                 color: account.balance >= 0 ? Theme.of(context).colorScheme.primary : Theme.of(context).colorScheme.error,
               ),
         ),
+        onTap: () => _editAccount(context, ref, account),
       ),
     );
   }
+
+  Future<void> _editAccount(BuildContext context, WidgetRef ref, Account account) async {
+    final db = ref.read(dbProvider);
+    final nameCtrl = TextEditingController(text: account.name);
+    final balanceCtrl = TextEditingController(text: account.balance.toStringAsFixed(2));
+    String type = account.type;
+
+    await showDialog(
+      context: context,
+      builder: (ctx) => AlertDialog(
+        title: const Text('Modifier le compte'),
+        content: SingleChildScrollView(
+          child: Column(
+            mainAxisSize: MainAxisSize.min,
+            children: [
+              TextField(
+                controller: nameCtrl,
+                decoration: const InputDecoration(labelText: 'Nom', hintText: 'Ex: Compte courant'),
+              ),
+              const SizedBox(height: 12),
+              TextField(
+                controller: balanceCtrl,
+                decoration: const InputDecoration(labelText: 'Solde', hintText: '0,00'),
+                keyboardType: const TextInputType.numberWithOptions(decimal: true),
+              ),
+              const SizedBox(height: 12),
+              DropdownButtonFormField<String>(
+                value: type,
+                decoration: const InputDecoration(labelText: 'Type'),
+                items: const [
+                  DropdownMenuItem(value: 'checking', child: Text('Compte courant')),
+                  DropdownMenuItem(value: 'savings', child: Text('Épargne')),
+                  DropdownMenuItem(value: 'credit', child: Text('Carte de crédit')),
+                  DropdownMenuItem(value: 'cash', child: Text('Espèces')),
+                ],
+                onChanged: (v) {
+                  if (v != null) type = v;
+                },
+              ),
+            ],
+          ),
+        ),
+        actions: [
+          TextButton(
+            onPressed: () async {
+              await (db.delete(db.accounts)..where((t) => t.id.equals(account.id))).go();
+              if (ctx.mounted) Navigator.pop(ctx);
+            },
+            style: TextButton.styleFrom(foregroundColor: Theme.of(context).colorScheme.error),
+            child: const Text('Supprimer'),
+          ),
+          const Spacer(),
+          TextButton(
+            onPressed: () => Navigator.pop(ctx),
+            child: const Text('Annuler'),
+          ),
+          FilledButton(
+            onPressed: () async {
+              final name = nameCtrl.text.trim();
+              final balanceStr = balanceCtrl.text.trim().replaceAll(',', '.');
+              final balance = double.tryParse(balanceStr);
+              if (name.isEmpty || balance == null) return;
+              await (db.update(db.accounts)..where((t) => t.id.equals(account.id))).write(AccountsCompanion(
+                name: Value(name),
+                type: Value(type),
+                balance: Value(balance),
+              ));
+              if (ctx.mounted) Navigator.pop(ctx);
+            },
+            child: const Text('Enregistrer'),
+          ),
+        ],
+      ),
+    );
+    nameCtrl.dispose();
+    balanceCtrl.dispose();
+  }
 }