import 'package:flutter/material.dart';

import 'package:provider/provider.dart';

import 'package:pshared/models/resources.dart';
import 'package:pshared/provider/permissions.dart';

import 'package:pweb/pages/address_book/form/page.dart';
import 'package:pweb/pages/address_book/page/page.dart';
import 'package:pweb/pages/loader.dart';
import 'package:pweb/pages/payment_methods/page.dart';
import 'package:pweb/pages/payout_page/page.dart';
import 'package:pweb/pages/payout_page/wallet/edit/page.dart';
import 'package:pweb/pages/report/page.dart';
import 'package:pweb/pages/settings/profile/page.dart';
import 'package:pweb/pages/dashboard/dashboard.dart';
import 'package:pweb/providers/page_selector.dart';
import 'package:pweb/utils/logout.dart';
import 'package:pweb/widgets/appbar/app_bar.dart';
import 'package:pweb/widgets/sidebar/destinations.dart';
import 'package:pweb/widgets/sidebar/sidebar.dart';

import 'package:pweb/generated/i18n/app_localizations.dart';


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

  @override
  Widget build(BuildContext context) => PageViewLoader(
    child: Builder(builder: (BuildContext context) {
      final permissions = context.watch<PermissionsProvider>();
      if (!permissions.isReady) return Center(child: CircularProgressIndicator());

      final provider = context.watch<PageSelectorProvider>();

      final loc = AppLocalizations.of(context)!;

      final bool restrictedAccess = !permissions.canRead(ResourceType.chainWallets);
      final allowedDestinations = restrictedAccess
        ? <PayoutDestination>{
            PayoutDestination.settings,
            PayoutDestination.methods,
            PayoutDestination.editwallet,
          }
        : PayoutDestination.values.toSet();

      final selected = allowedDestinations.contains(provider.selected)
        ? provider.selected
        : (restrictedAccess ? PayoutDestination.settings : PayoutDestination.dashboard);

      if (selected != provider.selected) {
        WidgetsBinding.instance.addPostFrameCallback((_) => provider.selectPage(selected));
      }

      Widget content;
      switch (selected) {
        case PayoutDestination.dashboard:
          content = DashboardPage(
            onRecipientSelected: (recipient) => provider.selectRecipient(recipient),
            onGoToPaymentWithoutRecipient: provider.startPaymentWithoutRecipient,
          );
          break;

        case PayoutDestination.recipients:
          content = RecipientAddressBookPage(
            onRecipientSelected: (recipient) =>
              provider.selectRecipient(recipient, fromList: true),
            onAddRecipient: provider.goToAddRecipient,
            onEditRecipient: provider.editRecipient,
          );
          break;

        case PayoutDestination.addrecipient:
          final recipient = provider.recipientProvider.currentObject;
          content = AdressBookRecipientForm(
            recipient: recipient,
            onSaved: (_) => provider.selectPage(PayoutDestination.recipients),
          );
          break;

        case PayoutDestination.payment:
          content = PaymentPage(
            onBack: (_) => provider.goBackFromPayment(),
          );
          break;

        case PayoutDestination.settings:
          content = ProfileSettingsPage();
          break;

        case PayoutDestination.reports:
          content = OperationHistoryPage();
          break;

        case PayoutDestination.methods:
          content = PaymentConfigPage(
            onWalletTap: provider.selectWallet,
          );
          break;

        case PayoutDestination.editwallet:
          final wallet = provider.walletsProvider.selectedWallet;
          content = wallet != null
              ? WalletEditPage(
                onBack: provider.goBackFromWalletEdit,
              )
              : Center(child: Text(loc.noWalletSelected));
          break;

        default:
          content = Text(selected.name);
      }

      return Scaffold(
        appBar: PayoutAppBar(
          title: Text(selected.localizedLabel(context)),
          onAddFundsPressed: () {},
          onLogout: () => logoutUtil(context),
        ),
        body: Padding(
          padding: const EdgeInsets.only(left: 200, top: 40, right: 200),
          child: Row(
            spacing: 40,
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              PayoutSidebar(
                selected: selected,
                onSelected: provider.selectPage,
                onLogout: () => logoutUtil(context),
              ),
              Expanded(child: content),
            ],
          ),
        ),
      );
    },
  ));
}