implemented EMailSender

build.gradle

@@ -42,6 +42,8 @@ dependencies {
     implementation 'com.fasterxml.jackson.datatype:jackson-datatype-jsr310:2.13.4'
     implementation 'com.fasterxml.jackson.datatype:jackson-datatype-jdk8:2.13.4'
     testImplementation 'org.mockito:mockito-core:4.3.+'
+    implementation 'com.sun.mail:javax.mail:1.6.2'
+
 }
 
 test {

src/main/java/ch/zhaw/gartenverwaltung/HelloApplication.java

@@ -1,22 +1,23 @@
 package ch.zhaw.gartenverwaltung;
 
 import ch.zhaw.gartenverwaltung.bootstrap.AppLoader;
-import ch.zhaw.gartenverwaltung.notifier.Notifier;
+import ch.zhaw.gartenverwaltung.backgroundtasks.BackgroundTasks;
 import javafx.application.Application;
 import javafx.stage.Stage;
 
 import java.io.IOException;
+import java.util.Timer;
 
 public class HelloApplication extends Application {
+    Timer backGroundTaskTimer = new Timer();
+    BackgroundTasks backgroundTasks;
 
     @Override
     public void start(Stage stage) throws IOException {
         AppLoader appLoader = new AppLoader();
 
-        Notifier notifier = new Notifier(appLoader.getGardenSchedule());
+        backgroundTasks = new BackgroundTasks(appLoader.getTaskList(), appLoader.getGarden(), appLoader.getPlantList());
-        Thread notificationThread = new Thread(notifier);
+        backGroundTaskTimer.scheduleAtFixedRate(backgroundTasks, 0, 1000);
-        notificationThread.start();
-        notificationThread.interrupt();
 
         appLoader.loadSceneToStage("MainFXML.fxml", stage);
 
@@ -24,6 +25,11 @@ public class HelloApplication extends Application {
         stage.show();
     }
 
+    @Override
+    public void stop(){
+        backGroundTaskTimer.cancel();
+    }
+
     public static void main(String[] args) {
         launch();
     }

src/main/java/ch/zhaw/gartenverwaltung/Settings.java

@@ -1,13 +1,23 @@
 package ch.zhaw.gartenverwaltung;
 
+import ch.zhaw.gartenverwaltung.backgroundtasks.email.SmtpCredentials;
 import ch.zhaw.gartenverwaltung.types.HardinessZone;
 import javafx.beans.property.BooleanProperty;
 import javafx.beans.property.SimpleBooleanProperty;
 
+import java.util.List;
+
 public class Settings {
+    private static final Settings instance;
     private HardinessZone currentHardinessZone = HardinessZone.ZONE_8A;
-    private static Settings instance;
     private final BooleanProperty showTutorial = new SimpleBooleanProperty(false);
+    private SmtpCredentials smtpCredentials = new SmtpCredentials("imap.gmail.com", "587", "pm3.hs22.it21b.win.team1@gmail.com", "pm3.hs22.it21b.win.team1@gmail.com", "bisefhhjtrrhtoqr", true);
+    // Gmail Address: pm3.hs22.it21b.win.team1@gmail.com
+    // Gmail Passwort: Gartenverwaltung.PM3.2022
+    // E-Mail Inbox: https://www.mailinator.com/v4/public/inboxes.jsp?to=pm3.hs22.it21b.win.team1
+    private String mailNotificationReceivers = "pm3.hs22.it21b.win.team1@mailinator.com";
+    private String mailNotificationSubjectTemplate = "Task %s is due!"; // {0} = Task Name
+    private String mailNotificationTextTemplate = "Dear user\nYour gardentask %s is due since %tF. Don't forget to confirm in your application if the task is done.\nTask description:\n%s"; // {0} = Task Name, {1} = nextExecution, {2} = Task description
 
     static {
         instance = new Settings();
@@ -38,4 +48,20 @@ public class Settings {
     public boolean getShowTutorial() {
         return this.showTutorial.get();
     }
+
+    public SmtpCredentials getSmtpCredentials() {
+        return smtpCredentials;
+    }
+
+    public String getMailNotificationReceivers() {
+        return mailNotificationReceivers;
+    }
+
+    public String getMailNotificationSubjectTemplate() {
+        return mailNotificationSubjectTemplate;
+    }
+
+    public String getMailNotificationTextTemplate() {
+        return mailNotificationTextTemplate;
+    }
 }

src/main/java/ch/zhaw/gartenverwaltung/backgroundtasks/BackgroundTasks.java

@@ -0,0 +1,42 @@
+package ch.zhaw.gartenverwaltung.backgroundtasks;
+
+import ch.zhaw.gartenverwaltung.io.PlantList;
+import ch.zhaw.gartenverwaltung.io.TaskList;
+import ch.zhaw.gartenverwaltung.models.Garden;
+
+import javax.mail.MessagingException;
+import java.io.IOException;
+import java.util.TimerTask;
+
+public class BackgroundTasks extends TimerTask {
+    private final TaskList taskList;
+    private final Garden garden;
+    private final PlantList plantList;
+    private  final Notifier notifier;
+    //TODO uncomment: privat final WeatherGardenTaskPlaner weatherGardenTaskPlaner;
+
+    public BackgroundTasks(TaskList taskList, Garden garden, PlantList plantList) {
+        this.taskList = taskList;
+        this.garden = garden;
+        this.plantList = plantList;
+        notifier = new Notifier(taskList, garden, plantList);
+        //TODO uncomment: weatherGardenTaskPlaner = new WeatherGardenTaskPlaner(taskList);
+    }
+
+    @Override
+    public void run() {
+        // TODO uncomment: weatherGardenTaskPlaner.refreshTasks();
+        try {
+            try {
+                notifier.sendNotifications();
+            } catch (MessagingException e) {
+                e.printStackTrace();
+                // TODO logger
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+            // TODO logger
+        }
+    }
+}
+

src/main/java/ch/zhaw/gartenverwaltung/backgroundtasks/Notifier.java

@@ -0,0 +1,42 @@
+package ch.zhaw.gartenverwaltung.backgroundtasks;
+
+import ch.zhaw.gartenverwaltung.Settings;
+import ch.zhaw.gartenverwaltung.backgroundtasks.email.EMailSender;
+import ch.zhaw.gartenverwaltung.io.PlantList;
+import ch.zhaw.gartenverwaltung.io.TaskList;
+import ch.zhaw.gartenverwaltung.models.Garden;
+import ch.zhaw.gartenverwaltung.types.Task;
+
+import javax.mail.MessagingException;
+import java.io.IOException;
+import java.time.LocalDate;
+
+public class Notifier {
+    private final TaskList taskList;
+    private final Garden garden;
+    private final PlantList plantList;
+    private final EMailSender eMailSender = new EMailSender();
+
+    public Notifier(TaskList taskList, Garden garden, PlantList plantList) {
+        this.taskList = taskList;
+        this.garden = garden;
+        this.plantList = plantList;
+    }
+
+    private void sendNotification(Task task) throws MessagingException {
+        String messageSubject = String.format(Settings.getInstance().getMailNotificationSubjectTemplate(), task.getName());
+        String messageText = String.format(Settings.getInstance().getMailNotificationTextTemplate(), task.getName(), task.getNextExecution(), task.getDescription());
+        //TODO create Exception for email sent fail
+        eMailSender.sendMails(Settings.getInstance().getMailNotificationReceivers(), messageSubject, messageText);
+    }
+
+    public void sendNotifications() throws IOException, MessagingException {
+        System.out.println("sending Notifications");
+        for (Task task : taskList.getTaskList(LocalDate.MIN, LocalDate.MAX)) {
+            if (task.getNextNotification() != null && task.getNextNotification().isBefore(LocalDate.now().minusDays(1))) {
+                sendNotification(task);
+                task.setNextNotification(LocalDate.now().plusDays(1));
+            }
+        }
+    }
+}

src/main/java/ch/zhaw/gartenverwaltung/backgroundtasks/email/EMailSender.java

@@ -0,0 +1,44 @@
+package ch.zhaw.gartenverwaltung.backgroundtasks.email;
+
+import ch.zhaw.gartenverwaltung.Settings;
+
+import javax.mail.Address;
+import javax.mail.Message;
+import javax.mail.MessagingException;
+import javax.mail.Transport;
+import javax.mail.internet.InternetAddress;
+import javax.mail.internet.MimeMessage;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Date;
+import java.util.List;
+
+public class EMailSender {
+
+
+    public EMailSender(){
+
+    }
+
+    public void sendMails(String recipients, String subject, String text) throws MessagingException {
+        // TODO replace printMail with implementation
+        printMail(recipients, subject, text); // TODO Remove Printing E-Mail to console to test it
+        MimeMessage message = new MimeMessage(Settings.getInstance().getSmtpCredentials().getSession());
+        message.addHeader("Content-type", "text/HTML; charset=UTF-8");
+        message.addHeader("format", "flowed");
+        message.addHeader("Content-Transfer-Encoding", "8bit");
+        message.setFrom(new InternetAddress(Settings.getInstance().getSmtpCredentials().fromAddress()));
+        message.setReplyTo(InternetAddress.parse(Settings.getInstance().getSmtpCredentials().fromAddress(), false));
+        message.setSubject(subject);
+        message.setText(text);
+        message.setSentDate(new Date());
+        message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(recipients, false));
+        System.out.println("Message is ready: ");
+        Transport.send(message);
+    }
+
+    private void printMail(String receiver, String subject, String text){
+        System.out.printf("\nSending E-Mail:\nTo: %s\nSubject: %s\nMessage:\n%s\n", receiver, subject, text);
+    }
+
+}

src/main/java/ch/zhaw/gartenverwaltung/backgroundtasks/email/SmtpCredentials.java

@@ -0,0 +1,41 @@
+package ch.zhaw.gartenverwaltung.backgroundtasks.email;
+
+import javax.mail.PasswordAuthentication;
+import javax.mail.Session;
+import java.net.Authenticator;
+import java.util.Properties;
+
+public record SmtpCredentials(
+        String host,
+        String port,
+        String fromAddress,
+        String username,
+        String password,
+        boolean startTLS
+        ) {
+
+    private Properties getProperties() {
+        Properties properties = new Properties();
+        properties.put("mail.smtp.host", host);
+        properties.put("mail.smtp.port", port);
+        properties.put("mail.smtp.auth", "true");
+        properties.put("mail.smtp.starttls.enable", startTLS ? "true" : "false");
+        return properties;
+    }
+
+    private javax.mail.Authenticator getAuthenticator() {
+        return new javax.mail.Authenticator() {
+            @Override
+            protected PasswordAuthentication getPasswordAuthentication() {
+                return new PasswordAuthentication(username, password);
+            }
+        };
+    }
+
+    public Session getSession() {
+        return Session.getInstance(getProperties(), getAuthenticator());
+    }
+
+
+
+}

src/main/java/ch/zhaw/gartenverwaltung/bootstrap/AppLoader.java

@@ -10,7 +10,6 @@ import ch.zhaw.gartenverwaltung.io.TaskList;
 import ch.zhaw.gartenverwaltung.models.Garden;
 import ch.zhaw.gartenverwaltung.models.GardenSchedule;
 import ch.zhaw.gartenverwaltung.models.PlantListModel;
-import ch.zhaw.gartenverwaltung.notifier.Notifier;
 import javafx.fxml.FXMLLoader;
 import javafx.scene.Scene;
 import javafx.scene.control.DialogPane;
@@ -157,7 +156,15 @@ public class AppLoader {
         };
     }
 
-    public GardenSchedule getGardenSchedule() {
+    public PlantList getPlantList() {
-        return gardenSchedule;
+        return plantList;
+    }
+
+    public Garden getGarden() {
+        return garden;
+    }
+
+    public TaskList getTaskList() {
+        return taskList;
     }
 }

src/main/java/ch/zhaw/gartenverwaltung/notifier/Notifier.java

@@ -1,48 +0,0 @@
-package ch.zhaw.gartenverwaltung.notifier;
-
-import ch.zhaw.gartenverwaltung.models.GardenSchedule;
-import ch.zhaw.gartenverwaltung.types.Task;
-
-import java.io.IOException;
-import java.time.LocalDate;
-import java.util.function.Consumer;
-
-public class Notifier implements Runnable{
-    private final GardenSchedule gardenSchedule;
-    private boolean interrupted = false;
-
-    public Notifier(GardenSchedule gardenSchedule) {
-        this.gardenSchedule = gardenSchedule;
-    }
-
-    private void sendNotification(Task task){
-        // TODO implement
-    }
-
-    private void sendNotifications(){
-        System.out.println("sending Notifications");
-        try {
-            gardenSchedule.getTaskList().forEach(task -> {
-                if(task.getNextNotification() != null && task.getNextNotification().isBefore(LocalDate.now().minusDays(1))){
-                    sendNotification(task);
-                    task.setNextNotification(task.getNextExecution());
-                }
-            });
-        } catch (IOException e) {
-            // TODO Logger
-            e.printStackTrace();
-        }
-    }
-
-    @Override
-    public void run() {
-        while(!interrupted){
-            try {
-                sendNotifications();
-                Thread.sleep(3000);
-            } catch (InterruptedException e) {
-                interrupted = true;
-            }
-        }
-    }
-}

src/main/java/module-info.java

@@ -5,6 +5,8 @@ module ch.zhaw.gartenverwaltung {
     requires com.fasterxml.jackson.datatype.jsr310;
     requires com.fasterxml.jackson.datatype.jdk8;
     requires java.logging;
+    requires java.mail;
+
 
     opens ch.zhaw.gartenverwaltung to javafx.fxml;
     opens ch.zhaw.gartenverwaltung.types to com.fasterxml.jackson.databind;
@@ -13,6 +15,8 @@ module ch.zhaw.gartenverwaltung {
     exports ch.zhaw.gartenverwaltung.types;
     exports ch.zhaw.gartenverwaltung.models;
     exports ch.zhaw.gartenverwaltung.json;
-    exports ch.zhaw.gartenverwaltung.notifier;
+    exports ch.zhaw.gartenverwaltung.backgroundtasks;
-    opens ch.zhaw.gartenverwaltung.notifier to javafx.fxml;
+    opens ch.zhaw.gartenverwaltung.backgroundtasks to javafx.fxml;
+    exports ch.zhaw.gartenverwaltung.backgroundtasks.email;
+    opens ch.zhaw.gartenverwaltung.backgroundtasks.email to javafx.fxml;
 }