import "package:flutter/material.dart";
import "package:provider/provider.dart";

import "../app/app_router.dart";
import "../app/app_state.dart";

class OrderHomeScreen extends StatelessWidget {
  const OrderHomeScreen({super.key});

  @override
  Widget build(BuildContext context) {
    final state = context.watch<AppState>();

    if (!state.hasLocationSelection) {
      // Defensive: if state is cleared, bounce back.
      WidgetsBinding.instance.addPostFrameCallback((_) {
        if (!context.mounted) return;
        Navigator.of(context).pushNamedAndRemoveUntil(
          AppRoutes.restaurantSelect,
          (route) => false,
        );
      });
    }

    return Scaffold(
      appBar: AppBar(
        title: const Text("PAYFRIT"),
        actions: [
          IconButton(
            tooltip: "Change location",
            onPressed: () {
              context.read<AppState>().clearAll();
              Navigator.of(context).pushNamedAndRemoveUntil(
                AppRoutes.restaurantSelect,
                (route) => false,
              );
            },
            icon: const Icon(Icons.location_off),
          ),
        ],
      ),
      body: Center(
        child: Padding(
          padding: const EdgeInsets.all(18),
          child: Column(
            mainAxisSize: MainAxisSize.min,
            children: [
              const Text(
                "MVP Scaffold",
                style: TextStyle(fontSize: 20, fontWeight: FontWeight.w700),
              ),
              const SizedBox(height: 12),
              Text("BusinessID: ${state.selectedBusinessId ?? "-"}"),
              Text("ServicePointID: ${state.selectedServicePointId ?? "-"}"),
              const SizedBox(height: 18),
              const Text(
                "Next: menu + cart + order submission.\n(We’ll carry ServicePointID through every request.)",
                textAlign: TextAlign.center,
              ),
            ],
          ),
        ),
      ),
    );
  }
}