[AB-347] adding support for multiple and generic attachments to modmail

fixing editing messages with multiple embeds
fixing message limit also bein imposed on pure embed count

abstracto-application/abstracto-modules/modmail/modmail-impl/src/main/java/dev/sheldan/abstracto/modmail/listener/ModMailMessageEditedListener.java

@@ -28,8 +28,11 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 import org.springframework.transaction.annotation.Transactional;
 
+import java.util.List;
+import java.util.Map;
 import java.util.Optional;
 import java.util.concurrent.CompletableFuture;
+import java.util.stream.Collectors;
 
 @Component
 @Slf4j
@@ -106,11 +109,24 @@ public class ModMailMessageEditedListener implements AsyncMessageUpdatedListener
                     .aUserInAServer(modMailMessage.getThreadReference().getUser())
                     .member(targetMember)
                     .build();
+            List<String> imageUrls = loadedMessage
+                    .getAttachments()
+                    .stream()
+                    .filter(Message.Attachment::isImage)
+                    .map(Message.Attachment::getProxyUrl)
+                    .collect(Collectors.toList());
+            Map<String, String> otherAttachments = loadedMessage
+                    .getAttachments()
+                    .stream()
+                    .filter(attachment -> !attachment.isImage())
+                    .collect(Collectors.toMap(Message.Attachment::getFileName, Message.Attachment::getUrl));
             ModMailModeratorReplyModel.ModMailModeratorReplyModelBuilder modMailModeratorReplyModelBuilder = ModMailModeratorReplyModel
                     .builder()
                     .text(newText)
                     .modMailThread(modMailMessage.getThreadReference())
                     .postedMessage(loadedMessage)
+                    .attachedImageUrls(imageUrls)
+                    .remainingAttachments(otherAttachments)
                     .anonymous(modMailMessage.getAnonymous())
                     .threadUser(fullThreadUser);
             if(modMailMessage.getAnonymous()) {

abstracto-application/abstracto-modules/modmail/modmail-impl/src/main/java/dev/sheldan/abstracto/modmail/service/ModMailThreadServiceBean.java

@@ -498,10 +498,23 @@ public class ModMailThreadServiceBean implements ModMailThreadService {
                     .map(CompletableFuture::join)
                     .filter(Objects::nonNull)
                     .collect(Collectors.toList());
+            List<String> imageUrls = messageFromUser
+                    .getAttachments()
+                    .stream()
+                    .filter(Message.Attachment::isImage)
+                    .map(Message.Attachment::getProxyUrl)
+                    .collect(Collectors.toList());
+            Map<String, String> otherAttachments = messageFromUser
+                    .getAttachments()
+                    .stream()
+                    .filter(attachment -> !attachment.isImage())
+                    .collect(Collectors.toMap(Message.Attachment::getFileName, Message.Attachment::getUrl));
             ModMailUserReplyModel modMailUserReplyModel = ModMailUserReplyModel
                     .builder()
                     .postedMessage(messageFromUser)
                     .member(member)
+                    .attachedImageUrls(imageUrls)
+                    .remainingAttachments(otherAttachments)
                     .subscribers(subscribers)
                     .build();
             MessageToSend messageToSend = templateService.renderEmbedTemplate("modmail_user_message", modMailUserReplyModel, textChannel.getGuild().getIdLong());
@@ -568,11 +581,24 @@ public class ModMailThreadServiceBean implements ModMailThreadService {
                 .aUserInAServer(modMailThread.getUser())
                 .member(targetMember)
                 .build();
+        List<String> imageUrls = replyCommandMessage
+                .getAttachments()
+                .stream()
+                .filter(Message.Attachment::isImage)
+                .map(Message.Attachment::getProxyUrl)
+                .collect(Collectors.toList());
+        Map<String, String> otherAttachments = replyCommandMessage
+                .getAttachments()
+                .stream()
+                .filter(attachment -> !attachment.isImage())
+                .collect(Collectors.toMap(Message.Attachment::getFileName, Message.Attachment::getUrl));
         ModMailModeratorReplyModel.ModMailModeratorReplyModelBuilder modMailModeratorReplyModelBuilder = ModMailModeratorReplyModel
                 .builder()
                 .text(text)
                 .modMailThread(modMailThread)
                 .postedMessage(replyCommandMessage)
+                .remainingAttachments(otherAttachments)
+                .attachedImageUrls(imageUrls)
                 .anonymous(anonymous)
                 .threadUser(fullThreadUser);
         if(anonymous) {
@@ -798,7 +824,8 @@ public class ModMailThreadServiceBean implements ModMailThreadService {
                                 return modMailMessage.getCreatedMessageInChannel().equals(message.getIdLong());
                             }
                         })
-                        .findFirst().orElseThrow(() -> new AbstractoRunTimeException("Could not find desired message in list of messages in thread. This should not happen, as we just retrieved them from the same place."));
+                        .findFirst()
+                        .orElseThrow(() -> new AbstractoRunTimeException("Could not find desired message in list of messages in thread. This should not happen, as we just retrieved them from the same place."));
                 User author = authors.getOrDefault(modmailMessage.getAuthor().getUserReference().getId(), message.getJDA().getSelfUser());
                 ModMailLoggedMessageModel modMailLoggedMessageModel =
                         ModMailLoggedMessageModel

abstracto-application/abstracto-modules/modmail/modmail-int/src/main/java/dev/sheldan/abstracto/modmail/model/template/ModMailModeratorReplyModel.java

@@ -8,6 +8,9 @@ import lombok.Setter;
 import net.dv8tion.jda.api.entities.Member;
 import net.dv8tion.jda.api.entities.Message;
 
+import java.util.List;
+import java.util.Map;
+
 /**
  * Model used to render the response by staff members to the DM channel with the user
  */
@@ -36,6 +39,8 @@ public class ModMailModeratorReplyModel {
      * Whether or not the reply should be shown anonymous
      */
     private Boolean anonymous;
+    private List<String> attachedImageUrls;
+    private Map<String, String> remainingAttachments;
     /**
      * The {@link ModMailThread} to reply to
      */

abstracto-application/abstracto-modules/modmail/modmail-int/src/main/java/dev/sheldan/abstracto/modmail/model/template/ModMailUserReplyModel.java

@@ -7,6 +7,7 @@ import net.dv8tion.jda.api.entities.Member;
 import net.dv8tion.jda.api.entities.Message;
 
 import java.util.List;
+import java.util.Map;
 
 /**
  * Model used to render the response by the user to the mod mail thread channel.
@@ -23,6 +24,8 @@ public class ModMailUserReplyModel {
      * The {@link Message} which was posted, which contains all the possible information
      */
     private Message postedMessage;
+    private List<String> attachedImageUrls;
+    private Map<String, String> remainingAttachments;
     /**
      * List of {@link Member} which are registered as subscribers for a particular mod mail thread and will be pinged
      * when the user sends a new message