stack_wallet/lib/pages/exchange_view/wallet_initiated_exchange_view.dart

import 'dart:async';

import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:stackwallet/pages/exchange_view/exchange_form.dart';
import 'package:stackwallet/pages/exchange_view/sub_widgets/step_row.dart';
import 'package:stackwallet/utilities/enums/coin_enum.dart';
import 'package:stackwallet/utilities/text_styles.dart';
import 'package:stackwallet/utilities/theme/stack_colors.dart';
import 'package:stackwallet/widgets/background.dart';
import 'package:stackwallet/widgets/custom_buttons/app_bar_icon_button.dart';

class WalletInitiatedExchangeView extends ConsumerStatefulWidget {
  const WalletInitiatedExchangeView({
    Key? key,
    required this.walletId,
    required this.coin,
  }) : super(key: key);

  static const String routeName = "/walletInitiatedExchange";

  final String walletId;
  final Coin coin;

  @override
  ConsumerState<WalletInitiatedExchangeView> createState() =>
      _WalletInitiatedExchangeViewState();
}

class _WalletInitiatedExchangeViewState
    extends ConsumerState<WalletInitiatedExchangeView> {
  late final String walletId;
  late final Coin coin;

  @override
  void initState() {
    walletId = widget.walletId;
    coin = widget.coin;
    super.initState();
  }

  @override
  void dispose() {
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    debugPrint("BUILD: $runtimeType");

    return Background(
      child: Scaffold(
        backgroundColor: Theme.of(context).extension<StackColors>()!.background,
        appBar: AppBar(
          leading: AppBarBackButton(
            onPressed: () async {
              if (FocusScope.of(context).hasFocus) {
                FocusScope.of(context).unfocus();
                await Future<void>.delayed(const Duration(milliseconds: 75));
              }
              if (mounted) {
                Navigator.of(context).pop();
              }
            },
          ),
          title: Text(
            "Exchange",
            style: STextStyles.navBarTitle(context),
          ),
        ),
        body: LayoutBuilder(
          builder: (context, constraints) {
            final width = MediaQuery.of(context).size.width - 32;
            return Padding(
              padding: const EdgeInsets.all(12),
              child: SingleChildScrollView(
                child: ConstrainedBox(
                  constraints: BoxConstraints(
                    minHeight: constraints.maxHeight - 24,
                  ),
                  child: IntrinsicHeight(
                    child: Padding(
                      padding: const EdgeInsets.all(4),
                      child: Column(
                        crossAxisAlignment: CrossAxisAlignment.stretch,
                        children: [
                          StepRow(
                            count: 4,
                            current: 0,
                            width: width,
                          ),
                          const SizedBox(
                            height: 14,
                          ),
                          Text(
                            "Exchange amount",
                            style: STextStyles.pageTitleH1(context),
                          ),
                          const SizedBox(
                            height: 8,
                          ),
                          Text(
                            "Network fees and other exchange charges are included in the rate.",
                            style: STextStyles.itemSubtitle(context),
                          ),
                          const SizedBox(
                            height: 24,
                          ),
                          ExchangeForm(
                            walletId: walletId,
                            coin: coin,
                          ),
                        ],
                      ),
                    ),
                  ),
                ),
              ),
            );
          },
        ),
      ),
    );
  }
}