import 'package:flutter/material.dart';
import 'package:seshat/domain/models/bal.dart';
import 'package:seshat/ui/bal_page/view_model/bal_view_model.dart';
import 'package:seshat/ui/bal_page/widget/ended/bal_ended_screen.dart';
import 'package:seshat/ui/bal_page/widget/ongoing/bal_ongoing_screen.dart';
import 'package:seshat/ui/bal_page/widget/pending/bal_pending_screen.dart';
import 'package:seshat/ui/core/ui/navigation_bar.dart';
import 'package:seshat/ui/core/ui/await_loading.dart';

class BalPage extends StatefulWidget {
  const BalPage({super.key, required this.viewModel});

  final BalViewModel viewModel;

  @override
  State<BalPage> createState() => _BalPageState();
}

class _BalPageState extends State<BalPage> {
  @override
  Widget build(BuildContext context) {
    return ListenableBuilder(
      listenable: widget.viewModel,
      builder: (context, child) {
        return switch (widget.viewModel.isLoaded) {
          false => Scaffold(
            bottomNavigationBar: AppNavigationBar(startIndex: 0),
            body: AwaitLoading(),
          ),
          true => switch (widget.viewModel.bal == null) {
            true => Scaffold(
              bottomNavigationBar: AppNavigationBar(startIndex: 0),
              body: Center(
                child: Text("La BAL référencée n'est pas accessible"),
              ),
            ),
            false => switch (widget.viewModel.bal!.state) {
              BalState.pending => BalPendingScreen(viewModel: widget.viewModel),
              BalState.ongoing => BalOngoingScreen(viewModel: widget.viewModel),
              BalState.ended => BalEndedScreen(viewModel: widget.viewModel),
            },
          },
        };
      },
    );
  }
}