io.imunity.furms.ui.views.landing.LandingPageView Maven / Gradle / Ivy

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/*
 * Copyright (c) 2020 Bixbit s.c. All rights reserved.
 * See LICENSE file for licensing information.
 */

package io.imunity.furms.ui.views.landing;

import com.vaadin.flow.component.UI;
import com.vaadin.flow.component.button.Button;
import com.vaadin.flow.component.dependency.CssImport;
import com.vaadin.flow.component.html.Div;
import com.vaadin.flow.component.html.H3;
import com.vaadin.flow.component.html.H4;
import com.vaadin.flow.component.orderedlayout.FlexComponent;
import com.vaadin.flow.component.orderedlayout.HorizontalLayout;
import com.vaadin.flow.component.orderedlayout.VerticalLayout;
import com.vaadin.flow.router.AfterNavigationEvent;
import com.vaadin.flow.router.AfterNavigationObserver;
import com.vaadin.flow.router.Route;
import io.imunity.furms.ui.components.FurmsViewComponent;
import io.imunity.furms.ui.components.PageTitle;
import io.imunity.furms.ui.components.branding.layout.ExtraLayoutPanel;
import io.imunity.furms.ui.config.FurmsLayoutExtraPanelsConfig;
import io.imunity.furms.ui.user_context.FurmsViewUserContext;
import io.imunity.furms.ui.user_context.RoleTranslator;
import io.imunity.furms.ui.user_context.ViewMode;

import java.util.Collection;
import java.util.List;
import java.util.Map;

import static com.vaadin.flow.component.orderedlayout.FlexComponent.Alignment.CENTER;
import static io.imunity.furms.domain.constant.RoutesConst.LANDING_PAGE_URL;
import static io.imunity.furms.domain.constant.RoutesConst.LOGOUT_TRIGGER_URL;
import static io.imunity.furms.ui.components.layout.FurmsAppLayoutComponentsFactory.MAIN_VIEW_CONTAINER_ID;
import static io.imunity.furms.ui.config.FurmsLayoutExtraPanelsConfig.BOTOOM_PANEL_ID;
import static io.imunity.furms.ui.config.FurmsLayoutExtraPanelsConfig.LEFT_PANEL_ID;
import static io.imunity.furms.ui.config.FurmsLayoutExtraPanelsConfig.RIGHT_PANEL_ID;
import static io.imunity.furms.ui.config.FurmsLayoutExtraPanelsConfig.TOP_PANEL_ID;
import static java.lang.String.format;
import static java.util.stream.Collectors.toList;

@Route(LANDING_PAGE_URL)
@PageTitle(key = "view.landing.title")
@CssImport("./styles/views/main/main-view.css")
@CssImport("./styles/views/landing-page.css")
public class LandingPageView extends FurmsViewComponent implements AfterNavigationObserver {

	private final Map> data;

	LandingPageView(RoleTranslator roleTranslator,
	                FurmsLayoutExtraPanelsConfig furmsLayoutExtraPanelsConfig) {
		this.data = roleTranslator.refreshAuthzRolesAndGetRolesToUserViewContexts();

		final Div top = new ExtraLayoutPanel(TOP_PANEL_ID, furmsLayoutExtraPanelsConfig.getTop());
		final Div left = new ExtraLayoutPanel(LEFT_PANEL_ID, furmsLayoutExtraPanelsConfig.getLeft());
		final Div right = new ExtraLayoutPanel(RIGHT_PANEL_ID, furmsLayoutExtraPanelsConfig.getRight());
		final Div bottom = new ExtraLayoutPanel(BOTOOM_PANEL_ID, furmsLayoutExtraPanelsConfig.getBottom());

		final VerticalLayout[] linksBlocks = data.keySet().stream()
				.sorted()
				.map(viewMode -> addSelectBlock(viewMode, data.get(viewMode)))
				.toArray(VerticalLayout[]::new);

		final VerticalLayout rolePicker = new VerticalLayout();
		rolePicker.setId(MAIN_VIEW_CONTAINER_ID);
		rolePicker.setDefaultHorizontalComponentAlignment(CENTER);
		rolePicker.add(new H3(getTranslation("view.landing.title")));
		rolePicker.add(linksBlocks);

		final HorizontalLayout viewContent = new HorizontalLayout();
		viewContent.setId("landing-page-container");
		viewContent.setAlignItems(FlexComponent.Alignment.STRETCH);
		viewContent.add(left, rolePicker, right);

		getContent().add(top, viewContent, bottom);
		getContent().setClassName("landing-page");

		getContent().setId("furms-layout");
	}

	private VerticalLayout addSelectBlock(ViewMode viewMode, List userContexts) {
		final VerticalLayout selectBlock = new VerticalLayout();

		if (viewMode.hasHeader()) {
			final H4 label = new H4(getTranslation(format("view.landing.role.%s", viewMode.name())));
			selectBlock.add(label);
		}

		final Button[] buttons = userContexts.stream()
				.sorted()
				.map(this::createLink)
				.toArray(Button[]::new);
		selectBlock.add(buttons);

		selectBlock.setDefaultHorizontalComponentAlignment(CENTER);

		return selectBlock;
	}

	private Button createLink(FurmsViewUserContext userContext) {
		final Button link = new Button(userContext.name);
		link.setClassName("button-link");

		link.addClickListener(event -> {
			userContext.setAsCurrent();
			UI.getCurrent().navigate(userContext.route);
		});

		return link;
	}

	@Override
	public void afterNavigation(AfterNavigationEvent afterNavigationEvent) {
		List viewUserContexts = data.values().stream()
				.flatMap(Collection::stream)
				.collect(toList());
		if (viewUserContexts.size() == 0) {
			UI.getCurrent().getPage().setLocation(LOGOUT_TRIGGER_URL);
			return;
		}		
		if (viewUserContexts.size() == 1 || (viewUserContexts.size() == 2 && data.containsKey(ViewMode.USER))) {
			viewUserContexts.get(0).setAsCurrent();
			UI.getCurrent().navigate(viewUserContexts.get(0).route);
		}
	}
}