dynamic theme, basic category settings

lib/pages/data/widgets/categories_settings.dart

@@ -16,12 +16,12 @@ class CategoriesSettings extends StatelessWidget {
           color: category.rgbToColor(),
         ),
         IconButton(
-          onPressed: () {},
+          onPressed: () => context.read<CategoryBloc>().add(CategoryEditTransfert(category, !category.transfert)),
           icon: const Icon(Icons.swap_horiz),
           color: category.transfert ? Theme.of(context).colorScheme.primary : Theme.of(context).colorScheme.error,
         ),
         IconButton(
-          onPressed: () {},
+          onPressed: () => context.read<CategoryBloc>().add(CategoryEditEssential(category, !category.essential)),
           icon: const Icon(Icons.foundation),
           color: category.essential ? Theme.of(context).colorScheme.primary : Theme.of(context).colorScheme.error,
         ),
@@ -34,7 +34,7 @@ class CategoriesSettings extends StatelessWidget {
           icon: const Icon(Icons.edit),
         ),
         IconButton(
-          onPressed: () {},
+          onPressed: () => context.read<CategoryBloc>().add(CategoryRemove(category)),
           icon: const Icon(Icons.delete),
         ),
       ],
@@ -43,9 +43,30 @@ class CategoriesSettings extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return BlocBuilder<CategoryBloc, CategoryState>(
+    return BlocConsumer<CategoryBloc, CategoryState>(
+      listener: (context, state) {
+        if (state is CategoryRemoveSucess) {
+          ScaffoldMessenger.of(context).showSnackBar(
+            const SnackBar(
+              backgroundColor: Colors.green,
+              content: Text('Category succesfuly removed !'),
+            )
+          );
+        } else if (state is CategoryRemoveFail) {
+          ScaffoldMessenger.of(context).showSnackBar(
+            const SnackBar(
+              backgroundColor: Colors.red,
+              content: Text('Cannot remove category. Still present on some transactions.'),
+            )
+          );
+        }
+      },
       builder: (context, state) => TitledContainer(
         title: "Categories",
+        action: IconButton(
+          onPressed: () => context.read<CategoryBloc>().add(CategoryAdd()),
+          icon: const Icon(Icons.add),
+        ),
         child: SingleChildScrollView(
           scrollDirection: Axis.vertical,
           child: Column(