import 'package:flutter/material.dart';

import 'package:fast_network_navigation/layout.dart';
import 'package:fast_network_navigation/structs/trip.dart';


class TripsOverview extends StatefulWidget {
  final Future<List<Trip>> trips;
  const TripsOverview({
    super.key,
    required this.trips,
    });

  @override
  State<TripsOverview> createState() => _TripsOverviewState();
}

class _TripsOverviewState extends State<TripsOverview> {
  // final Future<List<Trip>> _trips = loadTrips();


  Widget listBuild (BuildContext context, AsyncSnapshot<List<Trip>> snapshot) {
    List<Widget> children;
    if (snapshot.hasData) {
      children = List<Widget>.generate(snapshot.data!.length, (index) {
        Trip trip = snapshot.data![index];
        return ListTile(
          title: Text("Trip to ${trip.cityName}"),
          leading: Icon(Icons.pin_drop),
          onTap: () {
            Navigator.of(context).push(
              MaterialPageRoute(
                builder: (context) => BasePage(mainScreen: "map", trip: Future.value(trip))
              )
            );
          },
        );
      });
    } else if (snapshot.hasError) {
      children = [
        const Icon(
          Icons.error_outline,
          color: Colors.red,
          size: 60,
        ),
        Padding(
          padding: const EdgeInsets.only(top: 16),
          child: Text('Error: ${snapshot.error}'),
        ),
      ];
    } else {
      children = [Center(child: CircularProgressIndicator())];
    }

    return ListView(
      children: children,
    );
  }

  @override
  Widget build(BuildContext context) {
    return FutureBuilder(
      future: widget.trips,
      builder: listBuild,
    );
  }
}