// lib/presentation/pages/offers_page.dart
import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:proxibuy/presentation/offer/bloc/offer_bloc.dart';
import 'package:proxibuy/presentation/offer/bloc/widgets/offer_card.dart';
import 'package:proxibuy/presentation/widgets/gps_dialog.dart';

class OffersPage extends StatefulWidget {
  const OffersPage({super.key});

  @override
  State<OffersPage> createState() => _OffersPageState();
}

class _OffersPageState extends State<OffersPage> {
  @override
  void initState() {
    super.initState();
    WidgetsBinding.instance.addPostFrameCallback((_) async {
      await showGPSDialog(context);
      if (mounted) {
        context.read<OfferBloc>().add(FetchNearbyOffers());
      }
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('تخفیف‌های اطراف من'),
      ),
      body: BlocBuilder<OfferBloc, OfferState>(
        builder: (context, state) {
          if (state is OfferLoading) {
            return const Center(child: CircularProgressIndicator());
          }
          if (state is OfferSuccess) {
            return ListView.builder(
              itemCount: state.offers.length,
              itemBuilder: (context, index) {
                final offer = state.offers[index];
                return OfferCard(offer: offer);
              },
            );
          }
          if (state is OfferFailure) {
            return Center(
              child: Column(
                mainAxisAlignment: MainAxisAlignment.center,
                children: [
                  Text(state.message),
                  const SizedBox(height: 16),
                  ElevatedButton(
                    onPressed: () {
                      context.read<OfferBloc>().add(FetchNearbyOffers());
                    },
                    child: const Text('تلاش مجدد'),
                  )
                ],
              ),
            );
          }
          return const Center(child: Text('برای شروع، صفحه را رفرش کنید'));
        },
      ),
    );
  }
}