notifications_screen.dart

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import 'package:aidra_drive/core/ui/widgets/loading.dart';
import 'package:easy_localization/easy_localization.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:fluentui_system_icons/fluentui_system_icons.dart';
import 'package:flutter/material.dart';
import '../../../../../core/ui/theme/color_palette.dart';
import '../../../../../core/ui/widgets/custom_scaffold.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import '../../../../../core/ui/widgets/error_widget.dart';
import '../../../../../core/ui/widgets/logo_header.dart';
import '../../../../auth/presentation/bloc/authentication_bloc/authentication_bloc.dart';
import '../../../domain/entities/notification_entity.dart';
import '../../bloc/notifications_bloc.dart';
import 'widgets/notification_card.dart';
 
class NotificationsScreen extends StatefulWidget {
  const NotificationsScreen({super.key});
 
  @override
  State<NotificationsScreen> createState() => _NotificationsScreenState();
}
 
class _NotificationsScreenState extends State<NotificationsScreen> {
  @override
  void initState() {
    final authState = context.read<AuthenticationBloc>().state;
    if (authState is AuthenticatedState) {
      context.read<NotificationsBloc>().add(
            LoadNotificationsEvent(userId: authState.session.uid ?? 0),
          );
    }
    super.initState();
  }
 
  @override
  Widget build(BuildContext context) {
    return CustomScaffold(
      backgroundColor: ColorPalette.antiFlashWhite,
      isLeadingVisible: false,
      body: BlocConsumer<NotificationsBloc, NotificationsState>(
        listener: (context, state) {
          if (state is NotificationsError) {
            ScaffoldMessenger.of(context).showSnackBar(
              SnackBar(
                content: Text(state.failure.message),
                backgroundColor: Colors.red,
                behavior: SnackBarBehavior.floating,
              ),
            );
          }
        },
        builder: (context, state) {
          return RefreshIndicator(
            onRefresh: () async {
              final authState = context.read<AuthenticationBloc>().state;
              if (authState is AuthenticatedState) {
                context.read<NotificationsBloc>().add(
                  LoadNotificationsEvent(userId: authState.session.uid ?? 0),
                );
              }
            },
            child: _buildContent(state),
          );
        },
      ),
    );
  }
 
  Widget _buildContent(NotificationsState state) {
    if (state is NotificationsLoading) {
      return _buildLoadingWidget();
    }
 
    if (state is NotificationsError) {
      return CustomErrorWidget(
        message: "common.connection_failed".tr(),
        onReload: () {
          final authState = context.read<AuthenticationBloc>().state;
          if (authState is AuthenticatedState) {
            context.read<NotificationsBloc>().add(
              LoadNotificationsEvent(userId: authState.session.uid ?? 0),
            );
          }
        },
      );
    }
 
    if (state is NotificationsLoaded) {
      if (state.notifications.isEmpty) {
        return _buildEmptyWidget();
      }
      return _buildNotificationsList(state.notifications);
    }
 
    return _buildEmptyWidget();
  }
 
  Widget _buildLoadingWidget() {
    return const Loading();
  }
 
  Widget _buildEmptyWidget() {
    return Center(
      child: Column(
        mainAxisAlignment: MainAxisAlignment.center,
        children: [
          Icon(
            FluentIcons.chat_12_regular,
            size: 48.sp,
            color: ColorPalette.grey,
          ),
          SizedBox(height: 16.sp),
          Text(
            'notifications.no_notifications'.tr(),
            style: TextStyle(
              fontSize: 16.sp,
              color: ColorPalette.grey,
            ),
          ),
        ],
      ),
    );
  }
 
  Widget _buildNotificationsList(List<NotificationEntity> notifications) {
    return Column(
      children: [
        LogoHeader(title: "notifications.title".tr()),
        Expanded(
          child: ListView.builder(
            physics: const AlwaysScrollableScrollPhysics(),
            padding: EdgeInsets.symmetric(horizontal: 16.sp, vertical: 16.sp),
            itemCount: notifications.length,
            itemBuilder: (context, index) {
              final notification = notifications[index];
              return NotificationCard(notification: notification);
            },
          ),
        ),
      ],
    );
  }
}