Implement HW5 stubs, API helpers, optional SQL/MQ helpers, and test coverage

src/main/java/ru/kovbasa/elements/BaseElement.java

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+package ru.kovbasa.elements;
+
+import org.openqa.selenium.WebElement;
+
+public abstract class BaseElement implements UIElement {
+
+    protected final WebElement element;
+
+    protected BaseElement(WebElement element) {
+        this.element = element;
+    }
+
+    @Override
+    public void click() {
+        element.click();
+    }
+
+    @Override
+    public String getText() {
+        return element.getText();
+    }
+
+    @Override
+    public boolean isDisplayed() {
+        return element.isDisplayed();
+    }
+}

src/main/java/ru/kovbasa/elements/Button.java

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+package ru.kovbasa.elements;
+
+import org.openqa.selenium.WebElement;
+
+public class Button extends BaseElement {
+
+    public Button(WebElement element) {
+        super(element);
+    }
+
+    public boolean isEnabled() {
+        return element.isEnabled();
+    }
+}

src/main/java/ru/kovbasa/elements/CourseCard.java

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+package ru.kovbasa.elements;
+
+import org.openqa.selenium.By;
+import org.openqa.selenium.WebElement;
+
+import java.time.LocalDate;
+import java.time.Year;
+import java.time.format.DateTimeFormatter;
+import java.util.Locale;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class CourseCard extends BaseElement {
+
+    private final By titleLocator = By.cssSelector("h6 .sc-hrqzy3-1");
+    private final By dateLocator = By.cssSelector(".sc-157icee-1 .sc-hrqzy3-1");
+    private static final Pattern PRICE_PATTERN = Pattern.compile("(\\d[\\d\\s]*)\\s*[₽р]");
+
+    public CourseCard(WebElement element) {
+        super(element);
+    }
+
+    public String title() {
+        return element.findElement(titleLocator).getText().trim();
+    }
+
+    public LocalDate startDate() {
+        String raw = element.findElement(dateLocator).getText().trim();
+        if (raw.isEmpty()) {
+            throw new RuntimeException("Пустая дата на карточке курса: " + title());
+        }
+
+        String[] parts = raw.split("·");
+        String datePart = parts[0].trim();
+
+        if (datePart.startsWith("С ")) {
+            datePart = datePart.substring(2).trim();
+        }
+
+        datePart = datePart.replace(",", "").replace("года", "").trim();
+
+        boolean hasYear = datePart.matches(".*\\d{4}.*");
+
+        String normalized;
+        DateTimeFormatter formatter;
+
+        if (hasYear) {
+            normalized = datePart;
+            formatter = DateTimeFormatter.ofPattern("d MMMM yyyy", Locale.forLanguageTag("ru"));
+        } else {
+            normalized = datePart + " " + Year.now().getValue();
+            formatter = DateTimeFormatter.ofPattern("d MMMM yyyy", Locale.forLanguageTag("ru"));
+        }
+
+        return LocalDate.parse(normalized, formatter);
+    }
+
+    public int price() {
+        final String text = element.getText();
+        final Matcher matcher = PRICE_PATTERN.matcher(text);
+
+        int maxPrice = -1;
+        while (matcher.find()) {
+            final String raw = matcher.group(1).replace(" ", "");
+            final int parsed = Integer.parseInt(raw);
+            if (parsed > maxPrice) {
+                maxPrice = parsed;
+            }
+        }
+
+        if (maxPrice < 0) {
+            throw new RuntimeException("Цена курса не найдена в карточке: " + title());
+        }
+
+        return maxPrice;
+    }
+}

src/main/java/ru/kovbasa/elements/Link.java

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+package ru.kovbasa.elements;
+
+import org.openqa.selenium.WebElement;
+
+public class Link extends BaseElement {
+
+    public Link(WebElement element) {
+        super(element);
+    }
+
+    public String getHref() {
+        return element.getAttribute("href");
+    }
+}

src/main/java/ru/kovbasa/elements/UIElement.java

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+package ru.kovbasa.elements;
+
+public interface UIElement {
+    void click();
+    String getText();
+    boolean isDisplayed();
+}