/*
 * ============LICENSE_START=======================================================
 *  Copyright (C) 2019 Nordix Foundation
 *  ================================================================================
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *  SPDX-License-Identifier: Apache-2.0
 *  ============LICENSE_END=========================================================
 */

package org.openecomp.sdc.ci.tests.pages;

import org.openecomp.sdc.ci.tests.execute.setup.DriverFactory;
import org.openecomp.sdc.ci.tests.utilities.GeneralUIUtils;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.interactions.Actions;
import org.openqa.selenium.support.ui.ExpectedConditions;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.List;

import static org.openecomp.sdc.ci.tests.pages.TopNavComponent.XpathSelector.ARROW_DROPDOWN;
import static org.openecomp.sdc.ci.tests.pages.TopNavComponent.XpathSelector.MAIN_MENU_ONBOARD_BTN;
import static org.openecomp.sdc.ci.tests.pages.TopNavComponent.XpathSelector.NAV;
import static org.openecomp.sdc.ci.tests.pages.TopNavComponent.XpathSelector.REPOSITORY_ICON;
import static org.openecomp.sdc.ci.tests.pages.TopNavComponent.XpathSelector.SUB_MENU_BUTTON_HOME;

/**
 * Handles the Top Navigation Component UI actions
 */
public class TopNavComponent extends AbstractPageObject {

    private static final Logger LOGGER = LoggerFactory.getLogger(TopNavComponent.class);

    private WebElement wrappingElement;
    private By navLocator = By.xpath(NAV.getXpath());

    public TopNavComponent(final WebDriver webDriver) {
        super(webDriver);
        timeoutInSeconds = 5;
    }

    @Override
    public void isLoaded() {
        wrappingElement = getWrappingElement();
    }

    /**
     * Gets the enclosing element of the component.
     *
     * @return the enclosing element
     */
    public WebElement getWrappingElement() {
        LOGGER.debug("Finding element with xpath '{}'", NAV.getXpath());
        return waitForElementVisibility(navLocator);
    }

    /**
     * Clicks on home link inside the first breadcrumb arrow.
     */
    public void clickOnHome() {
        hoverToBreadcrumbArrow(0);
        final By homeButtonLocator = By.xpath(SUB_MENU_BUTTON_HOME.getXpath());
        getWait().until(ExpectedConditions.visibilityOfElementLocated(homeButtonLocator));
        getWait().until(ExpectedConditions.elementToBeClickable(homeButtonLocator)).click();
        getWait()
            .until(ExpectedConditions.visibilityOfElementLocated(By.xpath(REPOSITORY_ICON.getXpath())));
    }

    /**
     * Clicks on the VSP repository icon.
     *
     * @return the next page object
     */
    public VspRepositoryModalComponent clickOnRepositoryIcon() {
        wrappingElement.findElement(By.xpath(REPOSITORY_ICON.getXpath())).click();
        return new VspRepositoryModalComponent(webDriver);
    }

    /**
     * Clicks on the Onboard button.
     *
     * @return the next page object
     */
    public OnboardHomePage clickOnOnboard() {
        wrappingElement.findElement(By.xpath(MAIN_MENU_ONBOARD_BTN.getXpath())).click();
        return new OnboardHomePage(DriverFactory.getDriver(), new OnboardHeaderComponent(DriverFactory.getDriver()));
    }

    /**
     * Hover to a breadcrumb arrow of the given position.
     *
     * @param arrowPosition the position of the arrow from left to right
     * @return the hovered breadcrumb arrow element
     */
    public WebElement hoverToBreadcrumbArrow(final int arrowPosition) {
        final Actions actions = new Actions(GeneralUIUtils.getDriver());
        final List<WebElement> arrowElementList = getWait()
            .until(
                ExpectedConditions.visibilityOfAllElementsLocatedBy(By.xpath(ARROW_DROPDOWN.getXpath())));
        final WebElement selectedArrowElement = arrowElementList.get(arrowPosition);
        actions.moveToElement(selectedArrowElement).perform();
        return selectedArrowElement;
    }

    /**
     * Enum that contains identifiers and xpath expressions to elements related to the enclosing page object.
     */
    public enum XpathSelector {
        NAV("top-nav", "//nav[@class='%s']"),
        SUB_MENU_BUTTON_HOME("sub-menu-button-home", "//*[@data-tests-id='%s']"),
        ARROW_DROPDOWN("triangle-dropdown", "//li[contains(@class, '%s')]"),
        MAIN_MENU_ONBOARD_BTN("main-menu-button-onboard", "//a[@data-tests-id='%s']"),
        REPOSITORY_ICON("repository-icon", "//div[@data-tests-id='%s']");

        private final String id;
        private final String xpathFormat;

        XpathSelector(final String id, final String xpathFormat) {
            this.id = id;
            this.xpathFormat = xpathFormat;
        }

        public String getId() {
            return id;
        }

        public String getXpath() {
            return String.format(xpathFormat, id);
        }
    }

}