feat(#36): Notification rework with single and all comments mark as read

2026-01-18 18:42:10 +01:00
parent 105baf7c86
commit db788c4ee3
31 changed files with 711 additions and 94 deletions
--- a/api/legalconsenthub.yml
+++ b/api/legalconsenthub.yml
@@ -885,6 +885,18 @@ paths:
          $ref: "https://api.swaggerhub.com/domains/smartbear-public/ProblemDetails/1.0.0#/components/responses/Unauthorized"
        "500":
          $ref: "https://api.swaggerhub.com/domains/smartbear-public/ProblemDetails/1.0.0#/components/responses/ServerError"
+    delete:
+      summary: Clear all notifications for the current user
+      operationId: clearAllNotifications
+      tags:
+        - notification
+      responses:
+        "204":
+          description: All notifications cleared
+        "401":
+          $ref: "https://api.swaggerhub.com/domains/smartbear-public/ProblemDetails/1.0.0#/components/responses/Unauthorized"
+        "500":
+          $ref: "https://api.swaggerhub.com/domains/smartbear-public/ProblemDetails/1.0.0#/components/responses/ServerError"

  /notifications/unread:
    get:
@@ -968,26 +980,28 @@ paths:
        "500":
          $ref: "https://api.swaggerhub.com/domains/smartbear-public/ProblemDetails/1.0.0#/components/responses/ServerError"

-  /notifications/clear-all:
-    delete:
-      summary: Clear all notifications for the current user
-      operationId: clearAllNotifications
-      tags:
-        - notification
+  /notifications/{id}:
    parameters:
-        - in: query
-          name: organizationId
+      - name: id
+        in: path
        required: true
        schema:
          type: string
-          description: Organization ID to clear notifications for
+          format: uuid
+    delete:
+      summary: Delete a specific notification
+      operationId: deleteNotification
+      tags:
+        - notification
      responses:
        "204":
-          description: All notifications cleared
+          description: Notification successfully deleted
+        "404":
+          $ref: "https://api.swaggerhub.com/domains/smartbear-public/ProblemDetails/1.0.0#/components/responses/NotFound"
        "401":
          $ref: "https://api.swaggerhub.com/domains/smartbear-public/ProblemDetails/1.0.0#/components/responses/Unauthorized"
        "403":
-          description: User is not authorized to access this organization
+          description: User is not authorized to delete this notification
        "500":
          $ref: "https://api.swaggerhub.com/domains/smartbear-public/ProblemDetails/1.0.0#/components/responses/ServerError"

@@ -1636,6 +1650,14 @@ components:
        emailOnFormSubmitted:
          type: boolean
          default: true
+        emailOnFormUpdated:
+          type: boolean
+          default: true
+          description: Whether to receive email when someone else updates a form the user created
+        emailOnCommentAdded:
+          type: boolean
+          default: true
+          description: Whether to receive email when someone comments on a form the user created

    UpdateEmailPreferencesDto:
      type: object
@@ -1647,6 +1669,12 @@ components:
          type: boolean
        emailOnFormSubmitted:
          type: boolean
+        emailOnFormUpdated:
+          type: boolean
+          description: Whether to receive email when someone else updates a form the user created
+        emailOnCommentAdded:
+          type: boolean
+          description: Whether to receive email when someone comments on a form the user created

    UserStatus:
      type: string
@@ -1823,6 +1851,10 @@ components:
            type: string
          description: List of roles to send notification to. If both recipientId and targetRoles are null, notification will be sent to all organization members.
          nullable: true
+        excludedUserId:
+          type: string
+          description: Keycloak ID of user to exclude from receiving this notification (e.g., the action performer).
+          nullable: true
        type:
          $ref: "#/components/schemas/NotificationType"
        organizationId:
--- a/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/LegalconsenthubApplication.kt
+++ b/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/LegalconsenthubApplication.kt
@@ -4,10 +4,12 @@ import org.springframework.boot.autoconfigure.SpringBootApplication
 import org.springframework.boot.runApplication
 import org.springframework.data.jpa.repository.config.EnableJpaAuditing
 import org.springframework.scheduling.annotation.EnableAsync
+import org.springframework.scheduling.annotation.EnableScheduling

@SpringBootApplication
@EnableJpaAuditing
@EnableAsync
+@EnableScheduling
 class LegalconsenthubApplication

 fun main(args: Array<String>) {
--- a/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/application_form/ApplicationFormService.kt
+++ b/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/application_form/ApplicationFormService.kt
@@ -4,6 +4,7 @@ import com.betriebsratkanzlei.legalconsenthub.application_form_version.Applicati
 import com.betriebsratkanzlei.legalconsenthub.comment.CommentRepository
 import com.betriebsratkanzlei.legalconsenthub.email.ApplicationFormCreatedEvent
 import com.betriebsratkanzlei.legalconsenthub.email.ApplicationFormSubmittedEvent
+import com.betriebsratkanzlei.legalconsenthub.email.ApplicationFormUpdatedEvent
 import com.betriebsratkanzlei.legalconsenthub.error.ApplicationFormInvalidStateException
 import com.betriebsratkanzlei.legalconsenthub.error.ApplicationFormNotCreatedException
 import com.betriebsratkanzlei.legalconsenthub.error.ApplicationFormNotDeletedException
@@ -115,6 +116,11 @@ class ApplicationFormService(

        if (existingSnapshot != newSnapshot) {
            versionService.createVersion(updatedApplicationForm, currentUser)
+
+            // Notify the form author if someone else made changes
+            if (updatedApplicationForm.createdBy.keycloakId != currentUser.keycloakId) {
+                createNotificationForFormUpdate(updatedApplicationForm, currentUser.name)
+            }
        }

        return updatedApplicationForm
@@ -180,6 +186,7 @@ class ApplicationFormService(
                clickTarget = clickTarget,
                recipientId = null,
                targetRoles = null,
+                excludedUserId = applicationForm.createdBy.keycloakId,
                type = NotificationType.INFO,
                organizationId = applicationForm.organizationId,
            )
@@ -187,6 +194,41 @@ class ApplicationFormService(
        notificationService.createNotificationForOrganization(createNotificationDto)
    }

+    private fun createNotificationForFormUpdate(
+        applicationForm: ApplicationForm,
+        modifierName: String,
+    ) {
+        val title = "Änderungen an Ihrem Mitbestimmungsantrag"
+        val message =
+            "$modifierName hat Änderungen an Ihrem Mitbestimmungsantrag '${applicationForm.name}' vorgenommen."
+        val clickTarget = "/application-forms/${applicationForm.id}/0"
+
+        val createNotificationDto =
+            CreateNotificationDto(
+                title = title,
+                message = message,
+                clickTarget = clickTarget,
+                recipientId = applicationForm.createdBy.keycloakId,
+                targetRoles = null,
+                excludedUserId = null,
+                type = NotificationType.INFO,
+                organizationId = applicationForm.organizationId,
+            )
+
+        notificationService.createNotificationForUser(createNotificationDto)
+
+        // Publish email event for form author
+        eventPublisher.publishEvent(
+            ApplicationFormUpdatedEvent(
+                applicationFormId = applicationForm.id!!,
+                organizationId = applicationForm.organizationId,
+                updaterName = modifierName,
+                formName = applicationForm.name,
+                authorKeycloakId = applicationForm.createdBy.keycloakId,
+            ),
+        )
+    }
+
    fun addFormElementToSubSection(
        applicationFormId: UUID,
        subsectionId: UUID,
--- a/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/comment/CommentService.kt
+++ b/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/comment/CommentService.kt
@@ -1,12 +1,20 @@
 package com.betriebsratkanzlei.legalconsenthub.comment

 import com.betriebsratkanzlei.legalconsenthub.application_form.ApplicationFormRepository
+import com.betriebsratkanzlei.legalconsenthub.email.CommentAddedEvent
+import com.betriebsratkanzlei.legalconsenthub.error.ApplicationFormNotFoundException
 import com.betriebsratkanzlei.legalconsenthub.error.CommentNotCreatedException
 import com.betriebsratkanzlei.legalconsenthub.error.CommentNotDeletedException
 import com.betriebsratkanzlei.legalconsenthub.error.CommentNotFoundException
 import com.betriebsratkanzlei.legalconsenthub.error.CommentNotUpdatedException
+import com.betriebsratkanzlei.legalconsenthub.notification.NotificationService
 import com.betriebsratkanzlei.legalconsenthub_api.model.CommentDto
 import com.betriebsratkanzlei.legalconsenthub_api.model.CreateCommentDto
+import com.betriebsratkanzlei.legalconsenthub_api.model.CreateNotificationDto
+import com.betriebsratkanzlei.legalconsenthub_api.model.NotificationType
+import com.fasterxml.jackson.databind.JsonNode
+import com.fasterxml.jackson.databind.ObjectMapper
+import org.springframework.context.ApplicationEventPublisher
 import org.springframework.data.domain.PageRequest
 import org.springframework.stereotype.Service
 import java.time.Instant
@@ -23,6 +31,9 @@ class CommentService(
    private val commentRepository: CommentRepository,
    private val applicationFormRepository: ApplicationFormRepository,
    private val commentMapper: CommentMapper,
+    private val notificationService: NotificationService,
+    private val eventPublisher: ApplicationEventPublisher,
+    private val objectMapper: ObjectMapper,
 ) {
    fun createComment(
        applicationFormId: UUID,
@@ -37,9 +48,70 @@ class CommentService(
            throw CommentNotCreatedException(e)
        }

+        // Notify the form author if someone else added a comment
+        val applicationForm =
+            applicationFormRepository
+                .findById(applicationFormId)
+                .orElseThrow { ApplicationFormNotFoundException(applicationFormId) }
+
+        if (applicationForm.createdBy.keycloakId != savedComment.createdBy.keycloakId) {
+            createNotificationForNewComment(
+                savedComment,
+                applicationForm.createdBy.keycloakId,
+                applicationForm.organizationId,
+            )
+        }
+
        return savedComment
    }

+    private fun createNotificationForNewComment(
+        comment: Comment,
+        formAuthorKeycloakId: String,
+        organizationId: String,
+    ) {
+        val formName = comment.applicationForm?.name ?: "Unbekannt"
+        val title = "Neuer Kommentar zu Ihrem Mitbestimmungsantrag"
+        val message =
+            "${comment.createdBy.name} hat einen Kommentar zu Ihrem Mitbestimmungsantrag " +
+                "'$formName' hinzugefügt."
+        val clickTarget = "/application-forms/${comment.applicationForm?.id}/0"
+
+        val createNotificationDto =
+            CreateNotificationDto(
+                title = title,
+                message = message,
+                clickTarget = clickTarget,
+                recipientId = formAuthorKeycloakId,
+                targetRoles = null,
+                excludedUserId = null,
+                type = NotificationType.INFO,
+                organizationId = organizationId,
+            )
+
+        notificationService.createNotificationForUser(createNotificationDto)
+
+        // Publish email event for form author
+        val plainText = extractPlainTextFromTipTap(comment.message)
+        val commentPreview =
+            if (plainText.length > 100) {
+                plainText.take(100) + "..."
+            } else {
+                plainText
+            }
+
+        eventPublisher.publishEvent(
+            CommentAddedEvent(
+                applicationFormId = comment.applicationForm?.id!!,
+                organizationId = organizationId,
+                commenterName = comment.createdBy.name,
+                formName = formName,
+                authorKeycloakId = formAuthorKeycloakId,
+                commentPreview = commentPreview,
+            ),
+        )
+    }
+
    fun getCommentById(id: UUID): Comment = commentRepository.findById(id).orElseThrow { CommentNotFoundException(id) }

    fun getComments(
@@ -100,4 +172,43 @@ class CommentService(
            throw CommentNotDeletedException(e)
        }
    }
+
+    /**
+     * Extracts plain text from TipTap/ProseMirror JSON content.
+     * TipTap stores content as JSON like: {"type":"doc","content":[{"type":"paragraph","content":[{"type":"text","text":"Hello"}]}]}
+     */
+    private fun extractPlainTextFromTipTap(jsonContent: String): String {
+        return try {
+            val rootNode = objectMapper.readTree(jsonContent)
+            val textBuilder = StringBuilder()
+            extractTextRecursively(rootNode, textBuilder)
+            textBuilder.toString().trim()
+        } catch (e: Exception) {
+            // If parsing fails, return the original content (might be plain text)
+            jsonContent
+        }
+    }
+
+    private fun extractTextRecursively(
+        node: JsonNode,
+        builder: StringBuilder,
+    ) {
+        when {
+            node.has("text") -> {
+                builder.append(node.get("text").asText())
+            }
+            node.has("content") -> {
+                val content = node.get("content")
+                if (content.isArray) {
+                    content.forEachIndexed { index, child ->
+                        extractTextRecursively(child, builder)
+                        // Add newline between paragraphs
+                        if (child.has("type") && child.get("type").asText() == "paragraph" && index < content.size() - 1) {
+                            builder.append("\n")
+                        }
+                    }
+                }
+            }
+        }
+    }
 }
--- a/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/email/ApplicationFormUpdatedEvent.kt
+++ b/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/email/ApplicationFormUpdatedEvent.kt
@@ -0,0 +1,11 @@
+package com.betriebsratkanzlei.legalconsenthub.email
+
+import java.util.UUID
+
+data class ApplicationFormUpdatedEvent(
+    val applicationFormId: UUID,
+    val organizationId: String?,
+    val updaterName: String,
+    val formName: String,
+    val authorKeycloakId: String,
+)
--- a/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/email/CommentAddedEvent.kt
+++ b/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/email/CommentAddedEvent.kt
@@ -0,0 +1,12 @@
+package com.betriebsratkanzlei.legalconsenthub.email
+
+import java.util.UUID
+
+data class CommentAddedEvent(
+    val applicationFormId: UUID,
+    val organizationId: String?,
+    val commenterName: String,
+    val formName: String,
+    val authorKeycloakId: String,
+    val commentPreview: String,
+)
--- a/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/email/EmailEventListener.kt
+++ b/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/email/EmailEventListener.kt
@@ -70,4 +70,69 @@ class EmailEventListener(
            )
        }
    }
+
+    @Async
+    @EventListener
+    fun handleApplicationFormUpdated(event: ApplicationFormUpdatedEvent) {
+        logger.info("Processing ApplicationFormUpdatedEvent for form: ${event.formName}")
+
+        val recipient =
+            userRepository
+                .findByKeycloakIdAndEmailOnFormUpdatedTrue(event.authorKeycloakId)
+                ?.takeIf { !it.email.isNullOrBlank() }
+
+        if (recipient == null) {
+            logger.info("No recipient found for form updated event (author has email disabled or no email)")
+            return
+        }
+
+        logger.info("Sending form updated email to author: ${recipient.email}")
+
+        val subject = "Ihr Mitbestimmungsantrag wurde aktualisiert: ${event.formName}"
+        val body =
+            emailService.buildFormUpdatedEmail(
+                formName = event.formName,
+                updaterName = event.updaterName,
+                applicationFormId = event.applicationFormId,
+            )
+
+        emailService.sendEmail(
+            to = recipient.email!!,
+            subject = subject,
+            body = body,
+        )
+    }
+
+    @Async
+    @EventListener
+    fun handleCommentAdded(event: CommentAddedEvent) {
+        logger.info("Processing CommentAddedEvent for form: ${event.formName}")
+
+        val recipient =
+            userRepository
+                .findByKeycloakIdAndEmailOnCommentAddedTrue(event.authorKeycloakId)
+                ?.takeIf { !it.email.isNullOrBlank() }
+
+        if (recipient == null) {
+            logger.info("No recipient found for comment added event (author has email disabled or no email)")
+            return
+        }
+
+        logger.info("Sending comment added email to author: ${recipient.email}")
+
+        val subject = "Neuer Kommentar zu Ihrem Antrag: ${event.formName}"
+        val body =
+            emailService.buildCommentAddedEmail(
+                formName = event.formName,
+                commenterName = event.commenterName,
+                applicationFormId = event.applicationFormId,
+                commentPreview = event.commentPreview,
+            )
+
+        emailService.sendEmail(
+            to = recipient.email!!,
+            subject = subject,
+            body = body,
+        )
+    }
 }
--- a/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/email/EmailService.kt
+++ b/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/email/EmailService.kt
@@ -60,4 +60,30 @@ class EmailService(
        context.setVariable("applicationFormId", applicationFormId)
        return templateEngine.process("email/form_submitted", context)
    }
+
+    fun buildFormUpdatedEmail(
+        formName: String,
+        updaterName: String,
+        applicationFormId: UUID,
+    ): String {
+        val context = Context()
+        context.setVariable("formName", formName)
+        context.setVariable("updaterName", updaterName)
+        context.setVariable("applicationFormId", applicationFormId)
+        return templateEngine.process("email/form_updated", context)
+    }
+
+    fun buildCommentAddedEmail(
+        formName: String,
+        commenterName: String,
+        applicationFormId: UUID,
+        commentPreview: String,
+    ): String {
+        val context = Context()
+        context.setVariable("formName", formName)
+        context.setVariable("commenterName", commenterName)
+        context.setVariable("applicationFormId", applicationFormId)
+        context.setVariable("commentPreview", commentPreview)
+        return templateEngine.process("email/comment_added", context)
+    }
 }
--- a/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/notification/Notification.kt
+++ b/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/notification/Notification.kt
@@ -35,6 +35,8 @@ class Notification(
    var recipient: User? = null,
    @Column(nullable = true, columnDefinition = "TEXT")
    var targetRoles: String? = null,
+    @Column(nullable = true)
+    var excludedUserId: String? = null,
    @Enumerated(EnumType.STRING)
    @Column(nullable = false)
    var type: NotificationType = NotificationType.INFO,
--- a/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/notification/NotificationController.kt
+++ b/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/notification/NotificationController.kt
@@ -128,10 +128,12 @@ class NotificationController(
    @PreAuthorize(
        "hasAnyRole('CHIEF_EXECUTIVE_OFFICER', 'BUSINESS_DEPARTMENT', 'IT_DEPARTMENT', 'HUMAN_RESOURCES', 'HEAD_OF_WORKS_COUNCIL', 'WORKS_COUNCIL', 'EMPLOYEE')",
    )
-    override fun clearAllNotifications(organizationId: String): ResponseEntity<Unit> {
+    override fun clearAllNotifications(): ResponseEntity<Unit> {
        val principal = SecurityContextHolder.getContext().authentication.principal as CustomJwtTokenPrincipal
        val recipientId = principal.id ?: throw IllegalStateException("User ID not found")
-        validateOrganizationAccess(principal, organizationId)
+        val organizationId =
+            principal.organizationIds.firstOrNull()
+                ?: throw IllegalStateException("User has no organization")

        notificationService.clearAllNotifications(
            recipientKeycloakId = recipientId,
@@ -141,6 +143,14 @@ class NotificationController(
        return ResponseEntity.noContent().build()
    }

+    @PreAuthorize(
+        "hasAnyRole('CHIEF_EXECUTIVE_OFFICER', 'BUSINESS_DEPARTMENT', 'IT_DEPARTMENT', 'HUMAN_RESOURCES', 'HEAD_OF_WORKS_COUNCIL', 'WORKS_COUNCIL', 'EMPLOYEE')",
+    )
+    override fun deleteNotification(id: UUID): ResponseEntity<Unit> {
+        notificationService.deleteNotification(id)
+        return ResponseEntity.noContent().build()
+    }
+
    private fun validateOrganizationAccess(
        principal: CustomJwtTokenPrincipal,
        organizationId: String,
--- a/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/notification/NotificationMapper.kt
+++ b/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/notification/NotificationMapper.kt
@@ -39,6 +39,7 @@ class NotificationMapper(
            clickTarget = createNotificationDto.clickTarget,
            recipient = recipient,
            targetRoles = targetRoles,
+            excludedUserId = createNotificationDto.excludedUserId,
            type = createNotificationDto.type,
            organizationId = createNotificationDto.organizationId,
        )
--- a/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/notification/NotificationPurgeScheduler.kt
+++ b/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/notification/NotificationPurgeScheduler.kt
@@ -0,0 +1,27 @@
+package com.betriebsratkanzlei.legalconsenthub.notification
+
+import org.slf4j.LoggerFactory
+import org.springframework.scheduling.annotation.Scheduled
+import org.springframework.stereotype.Component
+
+@Component
+class NotificationPurgeScheduler(
+    private val notificationService: NotificationService,
+) {
+    private val logger = LoggerFactory.getLogger(NotificationPurgeScheduler::class.java)
+
+    /**
+     * Purges read notifications older than 90 days.
+     * Runs daily at 2:00 AM.
+     */
+    @Scheduled(cron = "0 0 2 * * *")
+    fun purgeOldReadNotifications() {
+        logger.info("Starting scheduled purge of old read notifications")
+        try {
+            notificationService.purgeOldReadNotifications(daysOld = 90)
+            logger.info("Successfully purged old read notifications")
+        } catch (e: Exception) {
+            logger.error("Failed to purge old read notifications", e)
+        }
+    }
+}
--- a/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/notification/NotificationRepository.kt
+++ b/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/notification/NotificationRepository.kt
@@ -7,6 +7,7 @@ import org.springframework.data.jpa.repository.Modifying
 import org.springframework.data.jpa.repository.Query
 import org.springframework.data.repository.query.Param
 import org.springframework.stereotype.Repository
+import java.time.Instant
 import java.util.UUID

@Repository
@@ -77,4 +78,16 @@ interface NotificationRepository : JpaRepository<Notification, UUID> {
        @Param("keycloakId") keycloakId: String,
        @Param("organizationId") organizationId: String,
    )
+
+    @Modifying
+    @Query(
+        """
+        DELETE FROM Notification n 
+        WHERE n.isRead = true 
+        AND n.createdAt < :cutoffDate
+        """,
+    )
+    fun deleteReadNotificationsOlderThan(
+        @Param("cutoffDate") cutoffDate: Instant,
+    )
 }
--- a/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/notification/NotificationService.kt
+++ b/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/notification/NotificationService.kt
@@ -77,6 +77,11 @@ class NotificationService(

        val filteredContent =
            allNotifications.content.filter { notification ->
+                // Exclude notifications where the current user is the excluded user
+                if (notification.excludedUserId == recipientKeycloakId) {
+                    return@filter false
+                }
+
                when {
                    // Direct recipient notification
                    notification.recipient != null -> true
@@ -105,6 +110,11 @@ class NotificationService(
            )

        return allNotifications.filter { notification ->
+            // Exclude notifications where the current user is the excluded user
+            if (notification.excludedUserId == recipientKeycloakId) {
+                return@filter false
+            }
+
            when {
                // Direct recipient notification
                notification.recipient != null -> true
@@ -160,4 +170,33 @@ class NotificationService(
    ) {
        notificationRepository.deleteAllByRecipientAndOrganization(recipientKeycloakId, organizationId)
    }
+
+    @Transactional
+    fun deleteNotification(notificationId: UUID) {
+        val notification =
+            notificationRepository
+                .findById(notificationId)
+                .orElseThrow { IllegalArgumentException("Notification not found with id: $notificationId") }
+
+        val principal = SecurityContextHolder.getContext().authentication.principal as? CustomJwtTokenPrincipal
+        val currentUserKeycloakId =
+            principal?.id
+                ?: throw IllegalStateException("User ID not found in security context")
+
+        // Allow deletion if user is the recipient or if it's an organization-wide notification
+        if (notification.recipient != null && notification.recipient?.keycloakId != currentUserKeycloakId) {
+            throw IllegalArgumentException("Cannot delete notification for another user")
+        }
+
+        notificationRepository.delete(notification)
+    }
+
+    @Transactional
+    fun purgeOldReadNotifications(daysOld: Int = 90) {
+        val cutoffDate =
+            java.time.Instant
+                .now()
+                .minus(java.time.Duration.ofDays(daysOld.toLong()))
+        notificationRepository.deleteReadNotificationsOlderThan(cutoffDate)
+    }
 }
--- a/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/user/User.kt
+++ b/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/user/User.kt
@@ -27,6 +27,10 @@ class User(
    var emailOnFormCreated: Boolean = true,
    @Column(nullable = false)
    var emailOnFormSubmitted: Boolean = true,
+    @Column(nullable = false)
+    var emailOnFormUpdated: Boolean = true,
+    @Column(nullable = false)
+    var emailOnCommentAdded: Boolean = true,
    @CreatedDate
    @Column(nullable = false)
    var createdAt: Instant? = null,
--- a/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/user/UserController.kt
+++ b/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/user/UserController.kt
@@ -31,6 +31,8 @@ class UserController(
                email = updateEmailPreferencesDto.email,
                emailOnFormCreated = updateEmailPreferencesDto.emailOnFormCreated ?: true,
                emailOnFormSubmitted = updateEmailPreferencesDto.emailOnFormSubmitted ?: true,
+                emailOnFormUpdated = updateEmailPreferencesDto.emailOnFormUpdated ?: true,
+                emailOnCommentAdded = updateEmailPreferencesDto.emailOnCommentAdded ?: true,
            )
        return ResponseEntity.ok(userMapper.toUserDto(user))
    }
--- a/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/user/UserMapper.kt
+++ b/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/user/UserMapper.kt
@@ -13,6 +13,8 @@ class UserMapper {
            email = user.email,
            emailOnFormCreated = user.emailOnFormCreated,
            emailOnFormSubmitted = user.emailOnFormSubmitted,
+            emailOnFormUpdated = user.emailOnFormUpdated,
+            emailOnCommentAdded = user.emailOnCommentAdded,
        )

    fun toUser(userDto: UserDto): User {
@@ -24,6 +26,8 @@ class UserMapper {
                email = userDto.email,
                emailOnFormCreated = userDto.emailOnFormCreated ?: true,
                emailOnFormSubmitted = userDto.emailOnFormSubmitted ?: true,
+                emailOnFormUpdated = userDto.emailOnFormUpdated ?: true,
+                emailOnCommentAdded = userDto.emailOnCommentAdded ?: true,
            )

        return user
--- a/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/user/UserRepository.kt
+++ b/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/user/UserRepository.kt
@@ -8,4 +8,8 @@ interface UserRepository : JpaRepository<User, String> {
    fun findByOrganizationIdAndEmailOnFormCreatedTrue(organizationId: String?): List<User>

    fun findByOrganizationIdAndEmailOnFormSubmittedTrue(organizationId: String?): List<User>
+
+    fun findByKeycloakIdAndEmailOnFormUpdatedTrue(keycloakId: String): User?
+
+    fun findByKeycloakIdAndEmailOnCommentAddedTrue(keycloakId: String): User?
 }
--- a/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/user/UserService.kt
+++ b/legalconsenthub-backend/src/main/kotlin/com/betriebsratkanzlei/legalconsenthub/user/UserService.kt
@@ -77,12 +77,16 @@ class UserService(
        email: String?,
        emailOnFormCreated: Boolean,
        emailOnFormSubmitted: Boolean,
+        emailOnFormUpdated: Boolean,
+        emailOnCommentAdded: Boolean,
    ): User {
        val user = userRepository.findById(userId).orElseThrow { UserNotFoundException(userId) }

        user.email = email
        user.emailOnFormCreated = emailOnFormCreated
        user.emailOnFormSubmitted = emailOnFormSubmitted
+        user.emailOnFormUpdated = emailOnFormUpdated
+        user.emailOnCommentAdded = emailOnCommentAdded

        return userRepository.save(user)
    }
--- a/legalconsenthub-backend/src/main/resources/templates/email/comment_added.html
+++ b/legalconsenthub-backend/src/main/resources/templates/email/comment_added.html
@@ -0,0 +1,38 @@
+<!DOCTYPE html>
+<html xmlns:th="http://www.thymeleaf.org">
+<head>
+    <meta charset="UTF-8">
+    <style>
+        body { font-family: Arial, sans-serif; line-height: 1.6; color: #333; }
+        .container { max-width: 600px; margin: 0 auto; padding: 20px; }
+        .header { background-color: #3B82F6; color: white; padding: 20px; border-radius: 5px 5px 0 0; }
+        .content { background-color: #f9fafb; padding: 20px; }
+        .comment-preview { background-color: #e5e7eb; padding: 15px; border-radius: 5px; margin: 15px 0; font-style: italic; }
+        .button { display: inline-block; padding: 10px 20px; background-color: #3B82F6; color: white; text-decoration: none; border-radius: 5px; margin-top: 15px; }
+        .footer { color: #6b7280; font-size: 12px; margin-top: 20px; }
+    </style>
+</head>
+<body>
+    <div class="container">
+        <div class="header">
+            <h2>Neuer Kommentar zu Ihrem Antrag</h2>
+        </div>
+        <div class="content">
+            <p>Hallo,</p>
+            <p>Es wurde ein neuer Kommentar zu Ihrem Mitbestimmungsantrag hinzugefügt:</p>
+            <ul>
+                <li><strong>Antrag:</strong> <span th:text="${formName}"></span></li>
+                <li><strong>Kommentar von:</strong> <span th:text="${commenterName}"></span></li>
+            </ul>
+            <div class="comment-preview">
+                <span th:text="${commentPreview}"></span>
+            </div>
+            <p>Klicken Sie auf den folgenden Link, um den Kommentar anzusehen:</p>
+            <a th:href="@{http://localhost:3001/application-forms/{id}/0(id=${applicationFormId})}" class="button">Kommentar ansehen</a>
+        </div>
+        <div class="footer">
+            <p>Diese E-Mail wurde automatisch von Legal Consent Hub gesendet.</p>
+        </div>
+    </div>
+</body>
+</html>
--- a/legalconsenthub-backend/src/main/resources/templates/email/form_updated.html
+++ b/legalconsenthub-backend/src/main/resources/templates/email/form_updated.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<html xmlns:th="http://www.thymeleaf.org">
+<head>
+    <meta charset="UTF-8">
+    <style>
+        body { font-family: Arial, sans-serif; line-height: 1.6; color: #333; }
+        .container { max-width: 600px; margin: 0 auto; padding: 20px; }
+        .header { background-color: #F59E0B; color: white; padding: 20px; border-radius: 5px 5px 0 0; }
+        .content { background-color: #f9fafb; padding: 20px; }
+        .button { display: inline-block; padding: 10px 20px; background-color: #F59E0B; color: white; text-decoration: none; border-radius: 5px; margin-top: 15px; }
+        .footer { color: #6b7280; font-size: 12px; margin-top: 20px; }
+    </style>
+</head>
+<body>
+    <div class="container">
+        <div class="header">
+            <h2>Mitbestimmungsantrag aktualisiert</h2>
+        </div>
+        <div class="content">
+            <p>Hallo,</p>
+            <p>Ihr Mitbestimmungsantrag wurde von einer anderen Person aktualisiert:</p>
+            <ul>
+                <li><strong>Antrag:</strong> <span th:text="${formName}"></span></li>
+                <li><strong>Aktualisiert von:</strong> <span th:text="${updaterName}"></span></li>
+            </ul>
+            <p>Klicken Sie auf den folgenden Link, um die Änderungen anzusehen:</p>
+            <a th:href="@{http://localhost:3001/application-forms/{id}/0(id=${applicationFormId})}" class="button">Änderungen ansehen</a>
+        </div>
+        <div class="footer">
+            <p>Diese E-Mail wurde automatisch von Legal Consent Hub gesendet.</p>
+        </div>
+    </div>
+</body>
+</html>
--- a/legalconsenthub/app/components/NotificationsSlideover.vue
+++ b/legalconsenthub/app/components/NotificationsSlideover.vue
@@ -1,16 +1,40 @@
 <template>
  <USlideover v-model:open="isOpen" :title="$t('notifications.title')">
    <template #body>
+      <!-- Action buttons at the top -->
+      <div v-if="notifications.length > 0" class="flex gap-2 mb-4 -mt-2">
+        <UButton
+          :label="$t('notifications.markAllRead')"
+          icon="i-lucide-check-check"
+          color="neutral"
+          variant="outline"
+          size="sm"
+          :disabled="!hasUnreadNotifications"
+          @click="onMarkAllAsRead"
+        />
+        <UButton
+          :label="$t('notifications.deleteAll')"
+          icon="i-lucide-trash-2"
+          color="error"
+          variant="outline"
+          size="sm"
+          @click="onDeleteAll"
+        />
+      </div>
+
      <div v-if="notifications.length === 0" class="text-center py-8 text-muted">
        <UIcon name="i-heroicons-bell-slash" class="h-8 w-8 mx-auto mb-2" />
        <p>{{ $t('notifications.empty') }}</p>
      </div>

-      <NuxtLink
+      <div
        v-for="notification in notifications"
        :key="notification.id"
+        class="px-3 py-2.5 rounded-md hover:bg-elevated/50 flex items-center gap-3 relative -mx-3 first:-mt-3 last:-mb-3 group"
+      >
+        <NuxtLink
          :to="notification.clickTarget"
-        class="px-3 py-2.5 rounded-md hover:bg-elevated/50 flex items-center gap-3 relative -mx-3 first:-mt-3 last:-mb-3"
+          class="flex items-center gap-3 flex-1"
          @click="onNotificationClick(notification)"
        >
          <UChip
@@ -56,6 +80,19 @@
            </div>
          </div>
        </NuxtLink>
+
+        <!-- Delete button for individual notification -->
+        <UButton
+          icon="i-lucide-x"
+          color="neutral"
+          variant="ghost"
+          size="xs"
+          square
+          class="opacity-0 group-hover:opacity-100 transition-opacity shrink-0"
+          :aria-label="$t('notifications.delete')"
+          @click.stop.prevent="onDeleteNotification(notification.id)"
+        />
+      </div>
    </template>
  </USlideover>
 </template>
@@ -63,6 +100,9 @@
 <script setup lang="ts">
 import { formatTimeAgo } from '@vueuse/core'
 import type { NotificationDto } from '~~/.api-client'
+import { useNotificationStore } from '~~/stores/useNotificationStore'
+
+const { t: $t } = useI18n()

 const emit = defineEmits<{
  'update:modelValue': [value: boolean]
@@ -77,16 +117,31 @@ const isOpen = computed({
  set: (value) => emit('update:modelValue', value)
 })

-const { notifications, fetchNotifications, handleNotificationClick } = useNotification()
+const notificationStore = useNotificationStore()
+const { notifications } = storeToRefs(notificationStore)
+
+const hasUnreadNotifications = computed(() => notifications.value.some((n) => !n.isRead))

 watch(isOpen, async (newValue) => {
  if (newValue) {
-    await fetchNotifications()
+    await notificationStore.fetchNotifications()
  }
 })

 function onNotificationClick(notification: NotificationDto) {
-  handleNotificationClick(notification)
+  notificationStore.handleNotificationClick(notification)
  emit('update:modelValue', false)
 }
+
+async function onMarkAllAsRead() {
+  await notificationStore.markAllAsRead()
+}
+
+async function onDeleteAll() {
+  await notificationStore.deleteAllNotifications()
+}
+
+async function onDeleteNotification(notificationId: string) {
+  await notificationStore.deleteSingleNotification(notificationId)
+}
 </script>
--- a/legalconsenthub/app/composables/index.ts
+++ b/legalconsenthub/app/composables/index.ts
@@ -2,7 +2,6 @@ export { useApplicationFormTemplate } from './applicationFormTemplate/useApplica
 export { useApplicationForm } from './applicationForm/useApplicationForm'
 export { useApplicationFormVersion } from './applicationFormVersion/useApplicationFormVersion'
 export { useApplicationFormVersionApi } from './applicationFormVersion/useApplicationFormVersionApi'
-export { useNotification } from './notification/useNotification'
 export { useNotificationApi } from './notification/useNotificationApi'
 export { useUser } from './user/useUser'
 export { useUserApi } from './user/useUserApi'
--- a/legalconsenthub/app/composables/notification/useNotificationApi.ts
+++ b/legalconsenthub/app/composables/notification/useNotificationApi.ts
@@ -44,8 +44,12 @@ export function useNotificationApi() {
    return notificationApiClient.markNotificationAsRead({ id, organizationId })
  }

-  async function clearAllNotifications(organizationId: string): Promise<void> {
-    return notificationApiClient.clearAllNotifications({ organizationId })
+  async function clearAllNotifications(): Promise<void> {
+    return notificationApiClient.clearAllNotifications()
+  }
+
+  async function deleteNotification(id: string): Promise<void> {
+    return notificationApiClient.deleteNotification({ id })
  }

  return {
@@ -55,6 +59,7 @@ export function useNotificationApi() {
    getUnreadNotificationCount,
    markAllNotificationsAsRead,
    markNotificationAsRead,
-    clearAllNotifications
+    clearAllNotifications,
+    deleteNotification
  }
 }
--- a/legalconsenthub/app/composables/user/useUser.ts
+++ b/legalconsenthub/app/composables/user/useUser.ts
@@ -12,9 +12,17 @@ export function useUser() {
    userId: string,
    email: string | null,
    emailOnFormCreated: boolean,
-    emailOnFormSubmitted: boolean
+    emailOnFormSubmitted: boolean,
+    emailOnFormUpdated: boolean,
+    emailOnCommentAdded: boolean
  ): Promise<UserDto> {
-    const updateDto: UpdateEmailPreferencesDto = { email, emailOnFormCreated, emailOnFormSubmitted }
+    const updateDto: UpdateEmailPreferencesDto = {
+      email,
+      emailOnFormCreated,
+      emailOnFormSubmitted,
+      emailOnFormUpdated,
+      emailOnCommentAdded
+    }

    return await userApi.updateEmailPreferences(userId, updateDto)
  }
--- a/legalconsenthub/app/layouts/default.vue
+++ b/legalconsenthub/app/layouts/default.vue
@@ -36,6 +36,8 @@
 </template>

 <script setup lang="ts">
+import { useNotificationStore } from '~~/stores/useNotificationStore'
+
 const { t: $t } = useI18n()

 const links = [
@@ -60,16 +62,17 @@ const open = ref(false)
 const logger = useLogger().withTag('layout')

 const isNotificationsSlideoverOpen = ref(false)
-const { unreadCount, fetchUnreadCount, startPeriodicRefresh } = useNotification()
+const notificationStore = useNotificationStore()
+const { hasUnread } = storeToRefs(notificationStore)

 onMounted(async () => {
-  await fetchUnreadCount()
-  startPeriodicRefresh()
+  await notificationStore.fetchUnreadCount()
+  notificationStore.startPeriodicRefresh()
 })

 provide('notificationState', {
  isNotificationsSlideoverOpen,
-  unreadCount
+  hasUnread
 })

 async function copyAccessTokenToClipboard() {
--- a/legalconsenthub/app/pages/index.vue
+++ b/legalconsenthub/app/pages/index.vue
@@ -22,9 +22,8 @@

          <UTooltip :text="$t('notifications.tooltip')" :shortcuts="['N']">
            <UButton color="neutral" variant="ghost" square @click="isNotificationsSlideoverOpen = true">
-              <UChip :show="unreadCount > 0" color="error" inset>
+              <UChip :show="hasUnread" color="error" inset>
                <UIcon name="i-lucide-bell" class="size-5 shrink-0" />
-                <span v-if="unreadCount > 0" class="ml-1 text-xs">{{ unreadCount }}</span>
              </UChip>
            </UButton>
          </UTooltip>
@@ -144,9 +143,9 @@ const { organizations, selectedOrganization } = storeToRefs(userStore)
 const { t: $t } = useI18n()

 // Inject notification state from layout
-const { isNotificationsSlideoverOpen, unreadCount } = inject('notificationState', {
+const { isNotificationsSlideoverOpen, hasUnread } = inject('notificationState', {
  isNotificationsSlideoverOpen: ref(false),
-  unreadCount: ref(0)
+  hasUnread: ref(false)
 })

 const { data } = await useAsyncData<PagedApplicationFormDto>(
--- a/legalconsenthub/app/pages/settings.vue
+++ b/legalconsenthub/app/pages/settings.vue
@@ -94,6 +94,8 @@
            <div class="space-y-3">
              <UCheckbox v-model="emailOnFormCreated" :label="$t('settings.email.onFormCreated')" />
              <UCheckbox v-model="emailOnFormSubmitted" :label="$t('settings.email.onFormSubmitted')" />
+              <UCheckbox v-model="emailOnFormUpdated" :label="$t('settings.email.onFormUpdated')" />
+              <UCheckbox v-model="emailOnCommentAdded" :label="$t('settings.email.onCommentAdded')" />
            </div>

            <UButton :label="$t('common.save')" color="primary" :loading="isSaving" @click="saveEmailPreferences" />
@@ -143,6 +145,8 @@ const colors = [
 const emailAddress = ref('')
 const emailOnFormCreated = ref(true)
 const emailOnFormSubmitted = ref(true)
+const emailOnFormUpdated = ref(true)
+const emailOnCommentAdded = ref(true)
 const isSaving = ref(false)

 onMounted(async () => {
@@ -152,6 +156,8 @@ onMounted(async () => {
      emailAddress.value = userData.email || ''
      emailOnFormCreated.value = userData.emailOnFormCreated ?? true
      emailOnFormSubmitted.value = userData.emailOnFormSubmitted ?? true
+      emailOnFormUpdated.value = userData.emailOnFormUpdated ?? true
+      emailOnCommentAdded.value = userData.emailOnCommentAdded ?? true
    } catch (error) {
      logger.error('Failed to load user email preferences:', error)
    }
@@ -167,7 +173,9 @@ async function saveEmailPreferences() {
      userStore.user.keycloakId,
      emailAddress.value || null,
      emailOnFormCreated.value,
-      emailOnFormSubmitted.value
+      emailOnFormSubmitted.value,
+      emailOnFormUpdated.value,
+      emailOnCommentAdded.value
    )

    toast.add({
--- a/legalconsenthub/i18n/locales/de.json
+++ b/legalconsenthub/i18n/locales/de.json
@@ -137,7 +137,10 @@
    "title": "Benachrichtigungen",
    "empty": "Keine Benachrichtigungen",
    "unreadCount": "{count} ungelesen",
-    "tooltip": "Benachrichtigungen"
+    "tooltip": "Benachrichtigungen",
+    "markAllRead": "Alle als gelesen markieren",
+    "deleteAll": "Alle löschen",
+    "delete": "Benachrichtigung löschen"
  },
  "administration": {
    "title": "Administration",
@@ -237,6 +240,8 @@
      "emailAddress": "E-Mail-Adresse",
      "onFormCreated": "Bei Erstellung eines Antrags",
      "onFormSubmitted": "Bei Einreichung eines Antrags",
+      "onFormUpdated": "Wenn jemand meinen Antrag bearbeitet",
+      "onCommentAdded": "Wenn jemand meinen Antrag kommentiert",
      "saved": "Einstellungen gespeichert"
    }
  }
--- a/legalconsenthub/i18n/locales/en.json
+++ b/legalconsenthub/i18n/locales/en.json
@@ -137,7 +137,10 @@
    "title": "Notifications",
    "empty": "No notifications",
    "unreadCount": "{count} unread",
-    "tooltip": "Notifications"
+    "tooltip": "Notifications",
+    "markAllRead": "Mark all as read",
+    "deleteAll": "Delete all",
+    "delete": "Delete notification"
  },
  "administration": {
    "title": "Administration",
@@ -237,6 +240,8 @@
      "emailAddress": "Email Address",
      "onFormCreated": "When an application form is created",
      "onFormSubmitted": "When an application form is submitted",
+      "onFormUpdated": "When someone edits my application form",
+      "onCommentAdded": "When someone comments on my application form",
      "saved": "Settings saved"
    }
  }
--- a/legalconsenthub/app/composables/notification/useNotification.ts
+++ b/legalconsenthub/app/composables/notification/useNotification.ts
@@ -1,28 +1,37 @@
+import { defineStore } from 'pinia'
 import type { NotificationDto } from '~~/.api-client'
-import { useUserStore } from '~~/stores/useUserStore'
+import { useNotificationApi } from '~/composables/notification/useNotificationApi'
+import { useLogger } from '~/composables/useLogger'
+import { useUserStore } from './useUserStore'

-export const useNotification = () => {
-  const logger = useLogger().withTag('notification')
+export const useNotificationStore = defineStore('Notification', () => {
+  const logger = useLogger().withTag('notificationStore')
+  const userStore = useUserStore()
+  const { user } = useUserSession()

  const {
    getNotifications,
    getUnreadNotifications,
    getUnreadNotificationCount,
    markAllNotificationsAsRead,
-    markNotificationAsRead
+    markNotificationAsRead,
+    clearAllNotifications,
+    deleteNotification
  } = useNotificationApi()

-  const userStore = useUserStore()
-  const organizationId = computed(() => userStore.selectedOrganization?.id)
-  const { user } = useUserSession()
-  const userId = computed(() => user.value?.keycloakId)
-
+  // State
  const notifications = ref<NotificationDto[]>([])
  const unreadNotifications = ref<NotificationDto[]>([])
  const unreadCount = ref<number>(0)
  const isLoading = ref(false)

-  const fetchNotifications = async (page: number = 0, size: number = 20) => {
+  // Getters
+  const hasUnread = computed(() => unreadCount.value > 0)
+  const organizationId = computed(() => userStore.selectedOrganization?.id)
+  const userId = computed(() => user.value?.keycloakId)
+
+  // Actions
+  async function fetchNotifications(page: number = 0, size: number = 20) {
    if (!organizationId.value) {
      logger.warn('No organization selected')
      return
@@ -40,7 +49,7 @@ export const useNotification = () => {
    }
  }

-  const fetchUnreadNotifications = async () => {
+  async function fetchUnreadNotifications() {
    if (!organizationId.value) {
      logger.warn('No organization selected')
      return
@@ -55,7 +64,7 @@ export const useNotification = () => {
    }
  }

-  const fetchUnreadCount = async () => {
+  async function fetchUnreadCount() {
    if (!userId.value || !organizationId.value) {
      logger.warn('No user or organization selected')
      return
@@ -70,7 +79,7 @@ export const useNotification = () => {
    }
  }

-  const markAllAsRead = async () => {
+  async function markAllAsRead() {
    if (!organizationId.value) {
      logger.warn('No organization selected')
      return
@@ -86,7 +95,7 @@ export const useNotification = () => {
    }
  }

-  const markAsRead = async (notificationId: string) => {
+  async function markAsRead(notificationId: string) {
    if (!organizationId.value) {
      logger.warn('No organization selected')
      return
@@ -109,7 +118,7 @@ export const useNotification = () => {
    }
  }

-  const handleNotificationClick = async (notification: NotificationDto) => {
+  async function handleNotificationClick(notification: NotificationDto) {
    if (!notification.isRead) {
      await markAsRead(notification.id)
    }
@@ -118,7 +127,7 @@ export const useNotification = () => {
    }
  }

-  const startPeriodicRefresh = (intervalMs: number = 30000) => {
+  function startPeriodicRefresh(intervalMs: number = 30000) {
    const interval = setInterval(() => {
      void fetchUnreadCount()
    }, intervalMs)
@@ -130,17 +139,55 @@ export const useNotification = () => {
    return interval
  }

+  async function deleteAllNotifications() {
+    try {
+      await clearAllNotifications()
+      notifications.value = []
+      unreadNotifications.value = []
+      unreadCount.value = 0
+    } catch (error) {
+      logger.error('Failed to delete all notifications:', error)
+      throw error
+    }
+  }
+
+  async function deleteSingleNotification(notificationId: string) {
+    try {
+      // Check if notification was unread before deleting
+      const notification = notifications.value.find((n) => n.id === notificationId)
+      const wasUnread = notification && !notification.isRead
+
+      await deleteNotification(notificationId)
+      notifications.value = notifications.value.filter((n) => n.id !== notificationId)
+      unreadNotifications.value = unreadNotifications.value.filter((n) => n.id !== notificationId)
+
+      // Update unread count if the deleted notification was unread
+      if (wasUnread && unreadCount.value > 0) {
+        unreadCount.value--
+      }
+    } catch (error) {
+      logger.error('Failed to delete notification:', error)
+      throw error
+    }
+  }
+
  return {
+    // State
    notifications,
    unreadNotifications,
    unreadCount,
    isLoading,
+    // Getters
+    hasUnread,
+    // Actions
    fetchNotifications,
    fetchUnreadNotifications,
    fetchUnreadCount,
    markAllAsRead,
    markAsRead,
    handleNotificationClick,
-    startPeriodicRefresh
+    startPeriodicRefresh,
+    deleteAllNotifications,
+    deleteSingleNotification
  }
-}
+})