first version that creates event table

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

de.srsoftware.cal.app/build.gradle.kts

@@ -7,5 +7,8 @@ dependencies {
 
     implementation("de.srsoftware:configuration.api:1.0.0")
     implementation("de.srsoftware:configuration.json:1.0.0")
+    implementation("de.srsoftware:tools.http:1.0.1")
+    implementation("de.srsoftware:tools.logging:1.0.1")
     implementation("de.srsoftware:tools.util:1.2.1")
+    implementation("de.srsoftware:tools.web:1.3.4")
     implementation("com.mysql:mysql-connector-j:9.1.0")}

de.srsoftware.cal.app/src/main/java/de/srsoftware/cal/app/Application.java

@@ -1,11 +1,13 @@
 /* © SRSoftware 2024 */
 package de.srsoftware.cal.app;
 
+import com.sun.net.httpserver.HttpServer;
 import de.srsoftware.cal.db.Database;
 import de.srsoftware.cal.db.MariaDB;
 import de.srsoftware.configuration.Configuration;
 import de.srsoftware.configuration.JsonConfig;
 import java.io.IOException;
+import java.net.InetSocketAddress;
 import java.security.NoSuchAlgorithmException;
 import java.sql.SQLException;
 import java.util.Optional;
@@ -41,7 +43,9 @@ public class Application {
 	public static void main(String[] args) throws NoSuchAlgorithmException, IOException, SQLException {
 		JsonConfig jsonConfig = new JsonConfig("OpenCloudCal");
 		var        db	      = connect(jsonConfig);
-		var        appointments = db.list(null, null);
+
-		for (var event : appointments) System.out.println(event);
+		HttpServer server = HttpServer.create(new InetSocketAddress(8080), 0);
+		new EventList(db).bindPath("/").on(server);
+		server.start();
 	}
 }

de.srsoftware.cal.app/src/main/java/de/srsoftware/cal/app/EventList.java

@@ -0,0 +1,62 @@
+/* © SRSoftware 2024 */
+package de.srsoftware.cal.app;
+
+import static de.srsoftware.tools.TagFilter.ofType;
+import static java.lang.System.Logger.Level.DEBUG;
+import static java.lang.System.Logger.Level.INFO;
+
+import com.sun.net.httpserver.HttpExchange;
+import de.srsoftware.cal.api.Appointment;
+import de.srsoftware.cal.db.Database;
+import de.srsoftware.tools.PathHandler;
+import de.srsoftware.tools.Tag;
+import java.io.IOException;
+import java.sql.SQLException;
+import java.util.List;
+
+public class EventList extends PathHandler {
+	private static final System.Logger LOG = System.getLogger(EventList.class.getSimpleName());
+
+	private final Database db;
+
+	public EventList(Database db) {
+		this.db = db;
+	}
+
+	@Override
+	public boolean doGet(String path, HttpExchange ex) throws IOException {
+		try {
+			var events = db.list(null, null);
+			LOG.log(DEBUG, () -> "Found %s events in database".formatted(events.size()));
+			var scaffold = scaffold();
+			var body     = scaffold.find(ofType("body")).getFirst();
+			body.add(createTable(events));
+			return sendContent(ex, scaffold.toString(2));
+		} catch (SQLException e) {
+			return serverError(ex, "Failed to fetch list of events!");
+		}
+	}
+
+	private Tag createTable(List<Appointment> events) {
+		var table = Tag.of("table");
+		var head  = Tag.of("tr");
+		head.add(Tag.of("th").content("Start")).add(Tag.of("th").content("Ort")).add(Tag.of("th").content("Event"));
+		table.add(head);
+		for (var event : events) {
+			LOG.log(INFO, event.title());
+			var row = Tag.of("tr");
+			row.add(Tag.of("td").content(event.start().toString())).add(Tag.of("td").content(event.location())).add(Tag.of("td").content(event.title())).addTo(table);
+		}
+		return table;
+	}
+
+	private Tag scaffold() {
+		var html = new Tag("html");
+		var head = new Tag("head")  //
+		               .add(new Tag("meta").attr("charset", "UTF-8"))
+		               .add(new Tag("title").content("OpenCloudCal"));
+		var body = new Tag("body");
+		html.add(head, body);
+		return html;
+	}
+}

de.srsoftware.cal.db/src/main/java/de/srsoftware/cal/db/MariaDB.java

@@ -98,7 +98,7 @@ public class MariaDB implements Database {
 	@Override
 	public List<Appointment> list(Integer count, Integer offset) throws SQLException {
 		var list    = new ArrayList<Appointment>();
-		var results = Query.of(SELECT_APPOINTMENTS).execute(connection);
+		var results = Query.of(SELECT_APPOINTMENTS).orderBy("start").execute(connection);
 		while (results.next()) {
 			var id	= results.getInt("aid");
 			var title	= results.getString("title");