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package selenium.camp;

import java.util.List;
import java.util.concurrent.TimeUnit;
import static org.hamcrest.CoreMatchers.containsString;
import org.junit.After;
import static org.junit.Assert.*;
import org.junit.Before;
import org.junit.Test;
import org.openqa.selenium.By;
import org.openqa.selenium.StaleElementReferenceException;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.support.ui.ExpectedConditions;
import static org.openqa.selenium.support.ui.ExpectedConditions.presenceOfElementLocated;
import static org.openqa.selenium.support.ui.ExpectedConditions.refreshed;
import org.openqa.selenium.support.ui.WebDriverWait;

public class GitHubIssuesTest {

    private static final String BASE_URL = "https://github.com";
    private WebDriver driver;

    @Before
    public void setUp() {
        driver = new FirefoxDriver();
        driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
        driver.get(BASE_URL);
        loginAs("user", "password");
        switchToRepository("test-repo");
    }
    
    @Test
    public void closeSingleIssue() {
        openIssuesList();
        String issueId = createIssue("Issue that will be closed");
        openIssuesList();
        closeIssue(issueId);
        assertTrue("Issue list element is still present", isIssueListedItemRemoved(issueId));
    }

    @After
    public void tearDown() {
        driver.quit();
    }

    private void loginAs(String login, String password) {
        driver.findElement(By.linkText("Sign in")).click();

        driver.findElement(By.id("login_field")).sendKeys(login);
        driver.findElement(By.id("password")).sendKeys(password);
        driver.findElement(By.name("commit")).click();
    }

    private void switchToRepository(String repositoryName) {
        driver.findElement(By.partialLinkText(repositoryName)).click();
    }

    private void openIssuesList() {
        driver.findElement(By.partialLinkText("Issues")).click();
    }

    /**
     * Creates issue with summary as provided and returns issue identifier.
     *
     * @param summary
     * @return
     */
    private String createIssue(String summary) {
        driver.findElement(By.linkText("New Issue")).click();
        driver.findElement(By.id("issue_title")).sendKeys(summary);
        driver.findElement(By.cssSelector("button.button.primary")).click();
        String issueId = driver.findElement(By.cssSelector(".issue-head .number strong")).getText();
        issueId = issueId.substring(1);
        return issueId;

    }

    private WebElement getIssueListElement(String issueId) {
        String issueLocator = "issue_" + issueId;
        return driver.findElement(By.id(issueLocator));
    }

    private void closeAllIssues() {
        List<WebElement> issueCheckboxes = driver.findElements(By.cssSelector(".issues td.select-toggle input[type='checkbox']"));
        for (WebElement issueCheckbox : issueCheckboxes) {
            issueCheckbox.click();
        }

        clickCloseIssueButton();
    }

    private String getIssuesMessageText() {
        String message = driver.findElement(By.cssSelector(".issues .none p")).getText();
        message = message.trim();
        return message;
    }

    private boolean isIssueListed(String issueId) {                
        final String locator = String.format("issue_%s", issueId);        
        return !driver.findElements(By.id(locator)).isEmpty();
    }
    
    private boolean isIssueListedItemRemoved(String issueId) {                
        final String locator = String.format("issue_%s", issueId);        
        WebDriverWait wait = new WebDriverWait(driver, 10);
        return wait.until(ExpectedConditions.stalenessOf(driver.findElement(By.id(locator))));        
    }

    private void closeIssue(String issueId) {
        WebElement issueCheckBox = getIssueListElement(issueId).findElement(By.cssSelector("input[type='checkbox']"));
        issueCheckBox.click();
        clickCloseIssueButton();        
    }

    private void clickCloseIssueButton() {
        driver.findElement(By.partialLinkText("Close")).click();
        clickCloseIssueButton();       
    }
}