Added emial to exchanges

buisnesslogic/src/main/java/com/plannaplan/models/EmailExchangesData.java

@@ -0,0 +1,45 @@
+package com.plannaplan.models;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import com.plannaplan.entities.Exchange;
+import com.plannaplan.entities.User;
+
+/**
+ * Class to keepm data to be send after exchanges being accept
+ */
+public class EmailExchangesData {
+    private Map<Long, List<Exchange>> data;
+
+    public EmailExchangesData() {
+        this.data = new HashMap<>();
+    }
+
+    /**
+     * method to add user and his event to data to be send
+     * 
+     * @param user owner of exchange being performed
+     * @param data exchange that was executed
+     */
+    public void addExchange(User user, Exchange data) {
+        final Long id = user.getId();
+        if (this.data.get(id) == null) {
+            this.data.put(id, new ArrayList<>());
+        }
+        this.data.get(id).add(data);
+    }
+
+    /**
+     * get datas entry set
+     * 
+     * @return set with entries that contains Long that is user id and list of hiss
+     *         performed Exchanges
+     */
+    public Set<Map.Entry<Long, List<Exchange>>> getDataEntry() {
+        return this.data.entrySet();
+    }
+}

buisnesslogic/src/main/java/com/plannaplan/services/EmailService.java

@@ -1,7 +1,13 @@
 package com.plannaplan.services;
 
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+
+import com.plannaplan.entities.Exchange;
 import com.plannaplan.entities.User;
 import com.plannaplan.models.EmailAcceptedData;
+import com.plannaplan.models.EmailExchangesData;
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
@@ -18,6 +24,9 @@ public class EmailService {
     @Autowired
     private JavaMailSender emailSender;
 
+    @Autowired
+    private UserService userService;
+
     @Value("${plannaplan.email}")
     private String appEmail;
 
@@ -54,4 +63,39 @@ public class EmailService {
         mailMessage.setText(data.getEmailMessage());
         emailSender.send(mailMessage);
     }
+
+    /**
+     * method to send email for students whose groups were swaped
+     * 
+     * @param data EmailExchangesData instance that contains pair of datas user and
+     *             list of performed exhanges
+     */
+    public void sendExchangesResults(EmailExchangesData data) {
+        for (Map.Entry<Long, List<Exchange>> entry : data.getDataEntry()) {
+            final User user = this.userService.getById(entry.getKey()).get();
+            String response = "Znaleźliśmy dla Ciebie osobę, która zamieniła się z Tobą przedmiotami!!!\n Zamienione przedmioty: \n";
+
+            final Iterator<Exchange> interator = entry.getValue().iterator();
+
+            while (interator.hasNext()) {
+                final Exchange exchange = interator.next();
+                final String courseFrom = exchange.getDesiredAssignment().getCourseId() != null
+                        ? exchange.getDesiredAssignment().getCourseId().getName()
+                        : "Nieznane zajęcie";
+                final String courseTo = exchange.getOwnedAssignment().getGroup().getCourseId() != null
+                        ? exchange.getOwnedAssignment().getGroup().getCourseId().getName()
+                        : "Nieznane zajęcie";
+
+                response += (" - " + courseFrom + " za " + courseTo.toLowerCase());
+            }
+
+            SimpleMailMessage mailMessage = new SimpleMailMessage();
+            mailMessage.setFrom(appEmail);
+            mailMessage.setTo(user.getEmail());
+            mailMessage.setSubject("[PlanNaPlan] Zamiana przedmiotów");
+            mailMessage.setText(response);
+            emailSender.send(mailMessage);
+
+        }
+    }
 }

buisnesslogic/src/main/java/com/plannaplan/services/EventService.java

@@ -6,6 +6,7 @@ import java.util.concurrent.ScheduledFuture;
 
 import javax.annotation.PostConstruct;
 
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.scheduling.annotation.Scheduled;
 import org.springframework.scheduling.concurrent.ThreadPoolTaskScheduler;
 import org.springframework.scheduling.support.CronTrigger;
@@ -14,6 +15,9 @@ import org.springframework.stereotype.Service;
 @Service
 public class EventService {
 
+    @Autowired
+    private ExchangeService exchangeService;
+
     public static final int FIRST_TOUR_SCHEDULE = 0;
     public static final int SECOND_TOUR_SCHEDULE = 1;
 
@@ -25,6 +29,12 @@ public class EventService {
         System.out.println("Checking for groups");
     }
 
+    @Scheduled(cron = "0 0 0 * * *")
+    public void performExchangeService() {
+        System.out.println("Performing Exchange");
+        this.exchangeService.performExchange();
+    }
+
     /**
      * Schedule provided task to perform
      *

buisnesslogic/src/main/java/com/plannaplan/services/ExchangeService.java

@@ -12,6 +12,7 @@ import com.plannaplan.entities.Commision;
 import com.plannaplan.entities.Exchange;
 import com.plannaplan.entities.Groups;
 import com.plannaplan.entities.User;
+import com.plannaplan.models.EmailExchangesData;
 import com.plannaplan.models.MatchData;
 import com.plannaplan.repositories.ExchangeRepository;
 
@@ -30,6 +31,9 @@ public class ExchangeService {
     @Autowired
     private UserService userService;
 
+    @Autowired
+    private EmailService emailService;
+
     /**
      * @param exchange Instance to save in database
      * @return Exchange Instance contains database id
@@ -77,11 +81,18 @@ public class ExchangeService {
     public void performExchange() {
         final List<MatchData> matchData = this.getMatches();
         final List<Long> performedAssignmentExchanges = new ArrayList<>();
+        final EmailExchangesData emailData = new EmailExchangesData();
+        final List<Exchange> exchangesToDelete = new ArrayList<>();
+
         matchData.forEach(m -> {
             final Assignment assignmentOne = m.getAssignmentOne();
             final Assignment assignmentTwo = m.getAssignmentTwo();
 
-		if (!(performedAssignmentExchanges.contains(assignmentOne.getId()) || performedAssignmentExchanges.contains(assignmentTwo.getId()))){
+            final Exchange exchange1 = m.getExchangeOne();
+            final Exchange exchange2 = m.getExchangeTwo();
+
+            if (!(performedAssignmentExchanges.contains(assignmentOne.getId())
+                    || performedAssignmentExchanges.contains(assignmentTwo.getId()))) {
                 final Commision commisionOne = assignmentOne.getCommision();
                 final User userOne = commisionOne.getCommisionOwner();
                 final Commision commisionTwo = assignmentTwo.getCommision();
@@ -104,11 +115,16 @@ public class ExchangeService {
 
                 performedAssignmentExchanges.add(assignmentOne.getId());
                 performedAssignmentExchanges.add(assignmentTwo.getId());
+
+                emailData.addExchange(exchange1.getOwnedAssignment().getCommision().getCommisionOwner(), exchange1);
+                emailData.addExchange(exchange2.getOwnedAssignment().getCommision().getCommisionOwner(), exchange2);
             }
 
-		this.deleteExchange(m.getExchangeOne());
+            exchangesToDelete.add(exchange1);
-		this.deleteExchange(m.getExchangeTwo());
+            exchangesToDelete.add(exchange2);
         });
+        this.emailService.sendExchangesResults(emailData);
+        this.repo.deleteAll(exchangesToDelete);
     }
 
     public List<MatchData> getMatches() {