Define Starting Reminder Notification

backend/src/main/java/core/DemoApplication.java

@@ -25,7 +25,7 @@ public class DemoApplication{
 	@Bean
 	public CommandLineRunner init() {
 		return args -> {
-			TaskSchedulingService.scheduleTask();
+			TaskSchedulingService.scheduleStartingTask("Finishing ConceptCreator");
 		};
 	}
 }

backend/src/main/java/core/services/ntfy/NtfyTask.java

@@ -18,7 +18,7 @@ public class NtfyTask implements Job {
         try {
             HttpRequest request = HttpRequest.newBuilder()
                     .uri(new URI("http://localhost:4280/Test"))
-                    .POST(HttpRequest.BodyPublishers.ofString("A simple testmessage"))
+                    .POST(HttpRequest.BodyPublishers.ofString(jobExecutionContext.getMergedJobDataMap().getString("data")))
                     .build();
 
             httpClient.sendAsync(request, HttpResponse.BodyHandlers.ofString());

backend/src/main/java/core/services/ntfy/NtfyTaskStartNotification.java

@@ -0,0 +1,34 @@
+package core.services.ntfy;
+
+import org.quartz.Job;
+import org.quartz.JobExecutionContext;
+import org.quartz.JobExecutionException;
+
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.net.http.HttpClient;
+import java.net.http.HttpRequest;
+import java.net.http.HttpResponse;
+
+public class NtfyTaskStartNotification implements Job {
+
+    @Override
+    public void execute(JobExecutionContext jobExecutionContext) throws JobExecutionException {
+        HttpClient httpClient = HttpClient.newHttpClient();
+        String msg = "Task " + jobExecutionContext.getMergedJobDataMap().getString("task") + " should have been started by now!";
+
+        try {
+            HttpRequest request = HttpRequest.newBuilder()
+                    .uri(new URI("http://localhost:4280/Test"))
+                    .POST(HttpRequest.BodyPublishers.ofString(msg))
+                    .header("Tags", "warning")
+                    .header("Title", "Task Starting Reminder")
+                    .header("Actions", "view, Open TimeScheduler, https://time.fawkes100.de/, clear=true")
+                    .build();
+
+            httpClient.sendAsync(request, HttpResponse.BodyHandlers.ofString());
+        } catch (URISyntaxException e) {
+            throw new RuntimeException(e);
+        }
+    }
+}

backend/src/main/java/core/services/ntfy/TaskSchedulingService.java

@@ -10,13 +10,25 @@ import java.util.Date;
 
 public class TaskSchedulingService {
 
+    public static void scheduleStartingTask(String taskName) throws SchedulerException {
+        Scheduler scheduler = StdSchedulerFactory.getDefaultScheduler();
+        scheduler.start();
+
+        JobDetail job = JobBuilder.newJob(NtfyTaskStartNotification.class).build();
+        job.getJobDataMap().put("task", taskName);
+
+        Trigger immediatly = TriggerBuilder.newTrigger().startNow().build();
+
+        scheduler.scheduleJob(job, immediatly);
+    }
 
    public static void scheduleTask() throws SchedulerException {
        Scheduler scheduler = StdSchedulerFactory.getDefaultScheduler();
        scheduler.start();
 
-       JobDetail job = JobBuilder.newJob(NtfyTask.class).withIdentity("Job 1", "Group 1").build();
-       JobDetail job2 = JobBuilder.newJob(NtfyTask.class).withIdentity("Job 2", "Group 1").build();
+       JobDetail job = JobBuilder.newJob(NtfyTask.class).build();
+
+       job.getJobDataMap().put("data", "A simple Job 1 Message");
 
        LocalDateTime executionTime = LocalDateTime.of(2024, 3, 14, 9, 18); // Example: March 15, 2024, 10:00 AM