invoice/lib/ui/client/view/client_view_vm.dart

import 'dart:async';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter_redux/flutter_redux.dart';
import 'package:invoiceninja_flutter/redux/invoice/invoice_actions.dart';
import 'package:invoiceninja_flutter/redux/payment/payment_actions.dart';
import 'package:invoiceninja_flutter/redux/project/project_actions.dart';
import 'package:invoiceninja_flutter/redux/quote/quote_actions.dart';
import 'package:invoiceninja_flutter/redux/task/task_actions.dart';
import 'package:invoiceninja_flutter/redux/ui/ui_actions.dart';
import 'package:invoiceninja_flutter/redux/expense/expense_actions.dart';
import 'package:invoiceninja_flutter/ui/client/client_screen.dart';
import 'package:invoiceninja_flutter/utils/completers.dart';
import 'package:invoiceninja_flutter/utils/localization.dart';
import 'package:redux/redux.dart';
import 'package:invoiceninja_flutter/redux/client/client_actions.dart';
import 'package:invoiceninja_flutter/data/models/models.dart';
import 'package:invoiceninja_flutter/ui/client/view/client_view.dart';
import 'package:invoiceninja_flutter/redux/app/app_state.dart';
import 'package:invoiceninja_flutter/ui/app/snackbar_row.dart';

class ClientViewScreen extends StatelessWidget {
  const ClientViewScreen({Key key}) : super(key: key);

  static const String route = '/client/view';

  @override
  Widget build(BuildContext context) {
    return StoreConnector<AppState, ClientViewVM>(
      distinct: true,
      converter: (Store<AppState> store) {
        return ClientViewVM.fromStore(store);
      },
      builder: (context, vm) {
        return ClientView(
          viewModel: vm,
        );
      },
    );
  }
}

class ClientViewVM {
  ClientViewVM({
    @required this.client,
    @required this.company,
    @required this.onActionSelected,
    @required this.onEntityPressed,
    @required this.onEditPressed,
    @required this.onBackPressed,
    @required this.isSaving,
    @required this.isLoading,
    @required this.isDirty,
    @required this.onRefreshed,
  });

  factory ClientViewVM.fromStore(Store<AppState> store) {
    final state = store.state;
    final client = state.clientState.map[state.clientUIState.selectedId] ??
        ClientEntity(id: state.clientUIState.selectedId);

    Future<Null> _handleRefresh(BuildContext context, bool loadActivities) {
      final completer = snackBarCompleter(
          context, AppLocalization.of(context).refreshComplete);
      store.dispatch(LoadClient(
          completer: completer,
          clientId: client.id,
          loadActivities: loadActivities));
      return completer.future;
    }

    return ClientViewVM(
        isSaving: state.isSaving,
        isLoading: state.isLoading,
        isDirty: client.isNew,
        client: client,
        company: state.selectedCompany,
        onEditPressed: (BuildContext context) {
          final Completer<ClientEntity> completer = Completer<ClientEntity>();
          store.dispatch(EditClient(
              client: client, context: context, completer: completer));
          completer.future.then((client) {
            Scaffold.of(context).showSnackBar(SnackBar(
                content: SnackBarRow(
              message: AppLocalization.of(context).updatedClient,
            )));
          });
        },
        onEntityPressed: (BuildContext context, EntityType entityType,
            [longPress = false]) {
          switch (entityType) {
            case EntityType.invoice:
              if (longPress) {
                store.dispatch(EditInvoice(
                    context: context,
                    invoice: InvoiceEntity(company: state.selectedCompany)
                        .rebuild((b) => b..clientId = client.id)));
              } else {
                store.dispatch(FilterInvoicesByEntity(
                    entityId: client.id, entityType: EntityType.client));
                store.dispatch(ViewInvoiceList(context));
              }
              break;
            case EntityType.quote:
              if (longPress) {
                store.dispatch(EditQuote(
                    context: context,
                    quote: InvoiceEntity(
                            company: state.selectedCompany, isQuote: true)
                        .rebuild((b) => b..clientId = client.id)));
              } else {
                store.dispatch(FilterQuotesByEntity(
                    entityId: client.id, entityType: EntityType.client));
                store.dispatch(ViewQuoteList(context));
              }
              break;
            case EntityType.payment:
              if (longPress) {
                store.dispatch(EditPayment(
                    context: context,
                    payment: PaymentEntity(company: state.selectedCompany)
                        .rebuild((b) => b..clientId = client.id)));
              } else {
                store.dispatch(FilterPaymentsByEntity(
                    entityId: client.id, entityType: EntityType.client));
                store.dispatch(ViewPaymentList(context));
              }
              break;
            case EntityType.project:
              if (longPress) {
                store.dispatch(EditProject(
                    context: context,
                    project: ProjectEntity()
                        .rebuild((b) => b..clientId = client.id)));
              } else {
                store.dispatch(FilterProjectsByEntity(
                    entityId: client.id, entityType: EntityType.client));
                store.dispatch(ViewProjectList(context));
              }
              break;
            case EntityType.task:
              if (longPress) {
                store.dispatch(EditTask(
                    context: context,
                    task: TaskEntity(isRunning: state.uiState.autoStartTasks)
                        .rebuild((b) => b..clientId = client.id)));
              } else {
                store.dispatch(FilterTasksByEntity(
                    entityId: client.id, entityType: EntityType.client));
                store.dispatch(ViewTaskList(context));
              }
              break;
            case EntityType.expense:
              if (longPress) {
                store.dispatch(EditExpense(
                    context: context,
                    expense: ExpenseEntity(
                        company: state.selectedCompany,
                        client: client,
                        uiState: state.uiState)));
              } else {
                store.dispatch(FilterExpensesByEntity(
                    entityId: client.id, entityType: EntityType.client));
                store.dispatch(ViewExpenseList(context));
              }
              break;
          }
        },
        onRefreshed: (context, loadActivities) =>
            _handleRefresh(context, loadActivities),
        onBackPressed: () {
          if (state.uiState.currentRoute.contains(ClientScreen.route)) {
            store.dispatch(UpdateCurrentRoute(ClientScreen.route));
          }
        },
        onActionSelected: (BuildContext context, EntityAction action) {
          final localization = AppLocalization.of(context);
          switch (action) {
            case EntityAction.newInvoice:
              store.dispatch(EditInvoice(
                  invoice: InvoiceEntity(company: state.selectedCompany)
                      .rebuild((b) => b.clientId = client.id),
                  context: context));
              break;
            case EntityAction.newExpense:
              store.dispatch(EditExpense(
                  expense: ExpenseEntity(
                      company: state.selectedCompany,
                      client: client,
                      uiState: state.uiState),
                  context: context));
              break;
            case EntityAction.enterPayment:
              store.dispatch(EditPayment(
                  payment: PaymentEntity(company: state.selectedCompany)
                      .rebuild((b) => b.clientId = client.id),
                  context: context));
              break;
            case EntityAction.archive:
              store.dispatch(ArchiveClientRequest(
                  popCompleter(context, localization.archivedClient),
                  client.id));
              break;
            case EntityAction.delete:
              store.dispatch(DeleteClientRequest(
                  popCompleter(context, localization.deletedClient),
                  client.id));
              break;
            case EntityAction.restore:
              store.dispatch(RestoreClientRequest(
                  snackBarCompleter(context, localization.restoredClient),
                  client.id));
              break;
          }
        });
  }

  final ClientEntity client;
  final CompanyEntity company;
  final Function(BuildContext, EntityAction) onActionSelected;
  final Function(BuildContext) onEditPressed;
  final Function onBackPressed;
  final Function(BuildContext, EntityType, [bool]) onEntityPressed;
  final Function(BuildContext, bool) onRefreshed;
  final bool isSaving;
  final bool isLoading;
  final bool isDirty;

  @override
  bool operator ==(dynamic other) =>
      client == other.client && company == other.company;

  @override
  int get hashCode => client.hashCode ^ company.hashCode;
}