Fixes issue with emails not being sent (#178)

* rfr

* removes try

src/main/java/com/google/sps/servlets/IntervieweeFeedbackServlet.java

@@ -25,7 +25,6 @@
 import com.google.sps.data.ScheduledInterviewDao;
 import com.google.sps.data.SendgridEmailSender;
 import com.google.sps.utils.EmailUtils;
-import com.google.sps.utils.SendgridEmailUtils;
 import com.sendgrid.helpers.mail.Mail;
 import com.sendgrid.helpers.mail.objects.Content;
 import com.sendgrid.helpers.mail.objects.Email;
@@ -50,7 +49,6 @@ public class IntervieweeFeedbackServlet extends HttpServlet {
   private ScheduledInterviewDao scheduledInterviewDao;
   private PersonDao personDao;
   private EmailSender emailSender;
-  private EmailUtils emailUtils;
   static final Email sender = new Email("interviewme.business@gmail.com");
   private Path emailsPath =
       Paths.get(
@@ -64,22 +62,14 @@ public void init() {
     } catch (IOException e) {
       throw new RuntimeException(e);
     }
-    init(
-        new DatastoreScheduledInterviewDao(),
-        new DatastorePersonDao(),
-        emailSender,
-        new SendgridEmailUtils());
+    init(new DatastoreScheduledInterviewDao(), new DatastorePersonDao(), emailSender);
   }
 
   public void init(
-      ScheduledInterviewDao scheduledInterviewDao,
-      PersonDao personDao,
-      EmailSender emailSender,
-      EmailUtils emailUtils) {
+      ScheduledInterviewDao scheduledInterviewDao, PersonDao personDao, EmailSender emailSender) {
     this.scheduledInterviewDao = scheduledInterviewDao;
     this.personDao = personDao;
     this.emailSender = emailSender;
-    this.emailUtils = emailUtils;
   }
 
   @Override
@@ -148,8 +138,8 @@ private void sendFeedback(String intervieweeEmail, HashMap<String, String> answe
     String subject = "Your Interviewer has submitted feedback for your interview!";
     Email recipient = new Email(intervieweeEmail);
     String contentString =
-        emailUtils.fileContentToString(emailsPath + "/feedbackToInterviewee.txt");
-    Content content = new Content("text/plain", emailUtils.replaceAllPairs(answers, contentString));
+        EmailUtils.fileContentToString(emailsPath + "/feedbackToInterviewee.txt");
+    Content content = new Content("text/plain", EmailUtils.replaceAllPairs(answers, contentString));
     emailSender.sendEmail(recipient, subject, content);
   }
 }

src/main/java/com/google/sps/servlets/InterviewerFeedbackServlet.java

@@ -25,7 +25,6 @@
 import com.google.sps.data.ScheduledInterviewDao;
 import com.google.sps.data.SendgridEmailSender;
 import com.google.sps.utils.EmailUtils;
-import com.google.sps.utils.SendgridEmailUtils;
 import com.sendgrid.helpers.mail.Mail;
 import com.sendgrid.helpers.mail.objects.Content;
 import com.sendgrid.helpers.mail.objects.Email;
@@ -50,7 +49,6 @@ public class InterviewerFeedbackServlet extends HttpServlet {
   private ScheduledInterviewDao scheduledInterviewDao;
   private PersonDao personDao;
   private EmailSender emailSender;
-  private EmailUtils emailUtils;
   static final Email sender = new Email("interviewme.business@gmail.com");
   private Path emailsPath =
       Paths.get(
@@ -64,22 +62,14 @@ public void init() {
     } catch (IOException e) {
       throw new RuntimeException(e);
     }
-    init(
-        new DatastoreScheduledInterviewDao(),
-        new DatastorePersonDao(),
-        emailSender,
-        new SendgridEmailUtils());
+    init(new DatastoreScheduledInterviewDao(), new DatastorePersonDao(), emailSender);
   }
 
   public void init(
-      ScheduledInterviewDao scheduledInterviewDao,
-      PersonDao personDao,
-      EmailSender emailSender,
-      EmailUtils emailUtils) {
+      ScheduledInterviewDao scheduledInterviewDao, PersonDao personDao, EmailSender emailSender) {
     this.scheduledInterviewDao = scheduledInterviewDao;
     this.personDao = personDao;
     this.emailSender = emailSender;
-    this.emailUtils = emailUtils;
   }
 
   @Override
@@ -147,8 +137,8 @@ private void sendFeedback(String interviewerEmail, HashMap<String, String> answe
     String subject = "Your Interviewee has submitted feedback for your interview!";
     Email recipient = new Email(interviewerEmail);
     String contentString =
-        emailUtils.fileContentToString(emailsPath + "/feedbackToInterviewer.txt");
-    Content content = new Content("text/plain", emailUtils.replaceAllPairs(answers, contentString));
+        EmailUtils.fileContentToString(emailsPath + "/feedbackToInterviewer.txt");
+    Content content = new Content("text/plain", EmailUtils.replaceAllPairs(answers, contentString));
     emailSender.sendEmail(recipient, subject, content);
   }
 }

src/main/java/com/google/sps/servlets/ScheduledInterviewServlet.java

@@ -38,7 +38,6 @@
 import com.google.sps.data.SendgridEmailSender;
 import com.google.sps.data.TimeRange;
 import com.google.sps.utils.EmailUtils;
-import com.google.sps.utils.SendgridEmailUtils;
 import com.sendgrid.Response;
 import com.sendgrid.SendGrid;
 import com.sendgrid.helpers.mail.Mail;
@@ -81,12 +80,8 @@ public class ScheduledInterviewServlet extends HttpServlet {
   private EmailSender emailSender;
   private CalendarAccess calendarAccess;
   private Calendar service;
-  private EmailUtils emailUtils;
   private final UserService userService = UserServiceFactory.getUserService();
   static final Email sender = new Email("interviewme.business@gmail.com");
-  private Path emailsPath =
-      Paths.get(
-          System.getProperty("user.home") + "/InterviewMe/src/main/resources/templates/email");
 
   @Override
   public void init() {
@@ -113,23 +108,20 @@ public void init() {
         new DatastoreAvailabilityDao(),
         new DatastorePersonDao(),
         calendar,
-        emailSender,
-        new SendgridEmailUtils());
+        emailSender);
   }
 
   public void init(
       ScheduledInterviewDao scheduledInterviewDao,
       AvailabilityDao availabilityDao,
       PersonDao personDao,
       CalendarAccess calendarAccess,
-      EmailSender emailSender,
-      EmailUtils emailUtils) {
+      EmailSender emailSender) {
     this.scheduledInterviewDao = scheduledInterviewDao;
     this.availabilityDao = availabilityDao;
     this.personDao = personDao;
     this.calendarAccess = calendarAccess;
     this.emailSender = emailSender;
-    this.emailUtils = emailUtils;
   }
 
   // Gets the current user's email and returns the ScheduledInterviews for that person.
@@ -447,22 +439,21 @@ private void sendParticipantEmail(
     }
 
     String subject = "You have been requested to conduct a mock interview!";
-    String contentString =
-        emailUtils.fileContentToString(emailsPath + "/NewInterview_Interviewer.txt");
+    String contentString = EmailUtils.fileContentToString("NewInterview_Interviewer.txt");
 
     if (participantId.equals(scheduledInterview.intervieweeId())) {
       subject = "You have been registered for a mock interview!";
-      contentString = emailUtils.fileContentToString(emailsPath + "/NewInterview_Interviewee.txt");
+      contentString = EmailUtils.fileContentToString("NewInterview_Interviewee.txt");
     }
 
     if (participantId.equals(scheduledInterview.shadowId())) {
       subject = "You have been registered for a mock interview!";
-      contentString = emailUtils.fileContentToString(emailsPath + "/NewInterview_Shadow.txt");
+      contentString = EmailUtils.fileContentToString("NewInterview_Shadow.txt");
     }
 
     Email recipient = new Email(recipientEmail);
     Content content =
-        new Content("text/plain", emailUtils.replaceAllPairs(emailedDetails, contentString));
+        new Content("text/plain", EmailUtils.replaceAllPairs(emailedDetails, contentString));
     emailSender.sendEmail(recipient, subject, content);
   }
   // Formats the position string that is sent in an email. For example SOFTWARE_ENGINEER -> Software
@@ -471,7 +462,7 @@ private static String formatPositionString(String str) {
     String splitString[] = str.split("_", 0);
     String formattedPositionString = "";
     for (String s : splitString) {
-      formattedPositionString += s.substring(0, 1) + s.substring(1).toLowerCase();
+      formattedPositionString += s.substring(0, 1) + s.substring(1).toLowerCase() + " ";
     }
     return formattedPositionString.trim();
   }

src/main/java/com/google/sps/utils/EmailUtils.java

@@ -14,18 +14,36 @@
 
 package com.google.sps.utils;
 
+// using SendGrid's Java Library
+// https://github.com/sendgrid/sendgrid-java
+import com.sendgrid.Method;
+import com.sendgrid.Request;
 import com.sendgrid.Response;
-import com.sendgrid.helpers.mail.objects.Content;
-import com.sendgrid.helpers.mail.objects.Email;
+import com.sendgrid.SendGrid;
 import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.stream.Stream;
+import java.util.Map;
 import java.util.HashMap;
+import java.lang.ClassLoader;
+import java.net.URI;
+import java.net.URL;
+import java.net.URISyntaxException;
 
-/** EmailUtils includes the basic methods used when formatting emails. */
-public interface EmailUtils {
+// Used to format contents of an email
+public class EmailUtils {
 
   // Returns the contents of the file specified at filePath as a String. Useful for converting
   // predefined email templates to text.
-  public String fileContentToString(String filePath) throws IOException;
+  public static String fileContentToString(String fileName) throws IOException {
+    StringBuilder contentBuilder = new StringBuilder();
+    Stream<String> stream =
+        Files.lines(Paths.get(getEmailTemplateResource(fileName)), StandardCharsets.UTF_8);
+    stream.forEach(s -> contentBuilder.append(s).append("\n"));
+    return contentBuilder.toString();
+  }
 
   /**
    * Modifies and returns @param str. Replaces all occurences in @param str of each key in @param
@@ -34,5 +52,21 @@ public interface EmailUtils {
   // Ex. str = "You will be mock interviewing {{interviewee_full_name}} on {{formatted_date}}."
   // toReplace = { ("{{interviewee_full_name}}","Tess"), ("{{formatted_date}}", "June 6, 2022") }
   // Returned: "You will be mock interviewing Tess on June 6, 2022."
-  public String replaceAllPairs(HashMap<String, String> toReplace, String str);
+  public static String replaceAllPairs(HashMap<String, String> toReplace, String str) {
+    for (Map.Entry<String, String> entry : toReplace.entrySet()) {
+      str = str.replace(entry.getKey(), entry.getValue());
+    }
+    return str;
+  }
+
+  private static URI getEmailTemplateResource(String fileName) {
+    URL resource = EmailUtils.class.getResource("/templates/email/" + fileName);
+    URI result;
+    try {
+      result = resource.toURI();
+    } catch (URISyntaxException e) {
+      throw new RuntimeException(e);
+    }
+    return result;
+  }
 }