added importer for Kasseturm Weimar

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

de.srsoftware.cal.importer/src/main/java/de/srsoftware/cal/importer/weimar/Kasseturm.java

@@ -0,0 +1,152 @@
+/* © SRSoftware 2024 */
+package de.srsoftware.cal.importer.weimar;
+
+import static de.srsoftware.tools.Result.transform;
+import static de.srsoftware.tools.Tag.CLASS;
+import static de.srsoftware.tools.Tag.HREF;
+import static de.srsoftware.tools.TagFilter.*;
+
+import de.srsoftware.cal.BaseImporter;
+import de.srsoftware.cal.Util;
+import de.srsoftware.cal.api.Coords;
+import de.srsoftware.tools.Payload;
+import de.srsoftware.tools.Result;
+import de.srsoftware.tools.Tag;
+import java.time.LocalDate;
+import java.time.LocalTime;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Objects;
+import java.util.function.Predicate;
+
+public class Kasseturm extends BaseImporter {
+
+	public static final Coords DEFAULT_COORDS= new Coords(50.98191, 11.32599);
+	@Override
+	protected String baseUrl() {
+		return "https://kasseturm.de/";
+	}
+
+	@Override
+	public String description() {
+		return "Importer für Events des Kasseturm Weimar";
+	}
+
+	@Override
+	protected Predicate<Tag> extractAttachmentsFilter() {
+		return attributeEquals(CLASS,"wpem-single-event-body-content");
+	}
+
+	@Override
+	protected Result<Tag> extractDescriptionTag(Tag eventTag) {
+		var desc = new Tag("div");
+		super.extractDescriptionTag(eventTag).optional().ifPresent(tag -> tag.find(IS_PARAGRAPH).forEach(desc::add));
+		return Payload.of(desc);
+	}
+
+	@Override
+	protected Predicate<Tag> extractDescriptionFilter() {
+		return attributeEquals(CLASS,"wpem-single-event-body-content");
+	}
+
+	@Override
+	protected Result<Coords> extractCoords(Tag eventTag) {
+		return Payload.of(DEFAULT_COORDS);
+	}
+
+	@Override
+	protected Predicate<Tag> extractEndDateFilter() {
+		return null;
+	}
+
+	@Override
+	protected Predicate<Tag> extractEndTimeFilter() {
+		return null;
+	}
+
+	@Override
+	protected Predicate<Tag> extractEventTagFilter() {
+		return attributeEquals(CLASS,"wpem-single-event-body");
+	}
+
+	@Override
+	protected Result<List<String>> extractEventUrls(Result<Tag> programPage) {
+		var opt = programPage.optional();
+		if (opt.isEmpty()) return transform(programPage);
+		var list = opt.get()
+				.find(withAttribute(HREF))
+				.stream()
+				.map(anchor -> anchor.get(HREF))
+				.filter(Objects::nonNull)
+				.filter(url -> url.contains("/veranstaltung/"))
+				.distinct()
+				.toList();
+		return Payload.of(list);
+	}
+
+	@Override
+	protected Predicate<Tag> extractLinksFilter() {
+		return attributeEquals(CLASS,"wpem-single-event-body");
+	}
+
+	@Override
+	protected Result<String> extractLocation(Tag eventTag) {
+		String loc = "Kasseturm, Goetheplatz 10, 99423 Weimar";
+		var opt = super.extractLocation(eventTag).optional();
+		return Payload.of(opt.map(s -> s.trim()+", "+loc).orElse(loc));
+	}
+
+	@Override
+	protected Predicate<Tag> extractLocationFilter() {
+		return attributeContains(HREF,"maps.google.com");
+	}
+
+	@Override
+	protected Predicate<Tag> extractStartDateFilter() {
+		return attributeEquals(CLASS,"wpem-event-date-time-text");
+	}
+
+	@Override
+	protected Predicate<Tag> extractStartTimeFilter() {
+		return attributeEquals(CLASS,"wpem-event-date-time-text");
+	}
+
+	@Override
+	protected List<String> extractTags(Tag eventTag) {
+		var list = new ArrayList<String>();
+		list.add("Weimar");
+		list.add("Kasseturm");
+		eventTag.find(IS_SPAN.and(attributeHas(CLASS,"event-type").or(attributeHas(CLASS,"event-category")))).forEach(tag -> tag.inner(0).ifPresent(list::add));
+		return list;
+	}
+
+	@Override
+	protected Predicate<Tag> extractTitleFilter() {
+		return ofType("h3");
+	}
+
+	@Override
+	protected Result<LocalDate> parseEndDate(String string) {
+		return null;
+	}
+
+	@Override
+	protected Result<LocalTime> parseEndTime(String string) {
+		return null;
+	}
+
+	@Override
+	protected Result<LocalDate> parseStartDate(String string) {
+		return Util.parseGermanDate(string);
+	}
+
+	@Override
+	protected Result<LocalTime> parseStartTime(String string) {
+		return Util.parseGermanTime(string);
+	}
+
+	@Override
+	protected String programURL() {
+		return baseUrl();
+	}
+}