fix functional bugs

lib/presentation/screens/subscription_details_screen.dart

@@ -27,15 +27,26 @@ class SubscriptionDetailsScreen extends StatelessWidget {
               const SizedBox(height: 16),
               Padding(
                 padding: const EdgeInsets.symmetric(horizontal: 20),
-                child: BlocBuilder<SubscriptionDetailsBloc, SubscriptionDetailsState>(
-                  builder: (context, state) {
-                    String title = "Загрузка...";
-                    if (state is DetailsContentState) {
-                      title = state.subscription.title;
-                    }
-                    return CustomAppBar(title: title);
-                  },
-                ),
+                child:
+                    BlocConsumer<
+                      SubscriptionDetailsBloc,
+                      SubscriptionDetailsState
+                    >(
+                      listenWhen: (previous, current) =>
+                          current is DetailsContentState && current.isSuccess,
+                      listener: (context, state) {
+                        if (state is DetailsContentState && state.isSuccess) {
+                          context.pop(true);
+                        }
+                      },
+                      builder: (context, state) {
+                        String title = "Загрузка...";
+                        if (state is DetailsContentState) {
+                          title = state.subscription.title;
+                        }
+                        return CustomAppBar(title: title);
+                      },
+                    ),
               ),
               const SizedBox(height: 20),
 
@@ -53,11 +64,16 @@ class SubscriptionDetailsScreen extends StatelessWidget {
                         child: Image.asset('assets/wave.png'),
                       ),
                     ),
-                    BlocBuilder<SubscriptionDetailsBloc, SubscriptionDetailsState>(
+                    BlocBuilder<
+                      SubscriptionDetailsBloc,
+                      SubscriptionDetailsState
+                    >(
                       builder: (context, state) {
                         if (state is DetailsLoading) {
                           return const Center(
-                            child: CircularProgressIndicator(color: Color(0xFF80FFD1)),
+                            child: CircularProgressIndicator(
+                              color: Color(0xFF80FFD1),
+                            ),
                           );
                         }
                         if (state is DetailsError) {
@@ -85,6 +101,7 @@ class SubscriptionDetailsScreen extends StatelessWidget {
   }
 
   Widget _buildContent(BuildContext context, DetailsContentState state) {
+    final bool isAvailableForPurchase = state.subscription.isActive;
     return SingleChildScrollView(
       padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 20),
       child: Column(
@@ -98,22 +115,28 @@ class SubscriptionDetailsScreen extends StatelessWidget {
               height: 1.5,
             ),
           ),
-          const SizedBox(height: 30),
 
-          _ActionCard(state: state),
+          if (isAvailableForPurchase) ...[
+            const SizedBox(height: 30),
 
-          const SizedBox(height: 30),
+            _ActionCard(state: state),
 
-          GradientButton(
-            text: 'Активировать',
-            onTap: () => context.read<SubscriptionDetailsBloc>().add(
-              ActivateSubscriptionPressed(),
+            const SizedBox(height: 30),
+
+            GradientButton(
+              text: state.isAlreadyPurchased ? 'Продлить' : 'Активировать',
+              onTap: () {
+                context.read<SubscriptionDetailsBloc>().add(
+                  ActivateSubscriptionPressed(),
+                );
+              },
+              enabled: state.isAgreed,
+              width: double.infinity,
+              height: 56,
+              fontSize: 16,
+              showArrows: true,
             ),
-            width: double.infinity,
-            height: 56,
-            fontSize: 16,
-            showArrows: true,
-          ),
+          ],
           const SizedBox(height: 20),
         ],
       ),
@@ -232,4 +255,4 @@ class _PriceRow extends StatelessWidget {
       ),
     );
   }
-}
+}