chore(concept): #849 create concept

CHANGELOG.md

@@ -10,6 +10,7 @@ _**For better traceability add the corresponding GitHub issue number in each cha
 ### Added
 - #844 Validation for BPN to Notification API (Create / Edit), Fixed pagination
 - #726 Added @Preauthorize annotation to dashboard controller
+- #849 Added concept: Notifications to multiple BPNs
 - #837 Added digital twin type to data provisioning workflow to be able to lookup shells created by trace-x
 
 ### Changed

docs/concept/#849-notifications-to-multiple-bpns/#849-notifications-to-multiple-bpns.md

@@ -0,0 +1,96 @@
+# \[Concept\] \[#849\] Quality notifications to multiple BPNs
+
+| Key           | Value                                                                    |
+|---------------|--------------------------------------------------------------------------|
+| Author        | @ds-crehm                                                                |
+| Creation date | 22.04.2024                                                               |
+| Ticket Id     | [#849](https://github.com/eclipse-tractusx/traceability-foss/issues/849) |
+| State         | DRAFT                                                                    |
+
+# Table of Contents
+1. [Overview](#overview)
+2. [Requirements](#requirements)
+3. [Out of scope](#out-of-scope)
+4. [Concept](#concept)
+5. [Additional Details](#additional-details)
+
+# Overview
+Instead of having "messages" that can be sent to multiple BPNs within one notification, multiple notifications must be created.
+Those can be individually edited and sent to the specific BPN.
+
+# Requirements
+- For alerts, when selecting multiple BPNs, a duplicated alert for each of the selected BPNs is created.
+- For investigations, when selecting parts from different BPNs, a duplicated investigation for each of the BPNs is created.
+- The data model is changed to make this process possible.
+- Notifications are tied to single BPNs and cannot be sent to multiple BPNs anymore.
+- BPN selection is possibly for alerts.
+  - Autocomplete filter -> Selection shows all matching BPNs (if there are more than 10, this selection is scrollable).
+  - Selected BPNs are shown as chips that can be removed.
+- BPN selection is disabled for investigations, instead the BPNs are "pulled" from the selected parts.
+- The frontend modals appear when a user is creating notifications and triggers a notification duplication.
+- In the modal the user has the chance to cancel or approve the process.
+
+# Out of scope
+- A duplication process for the user. In case the user wants to retroactively add BPNs to an existing notification or send a notification to a BPN that was not selected during the creation of this notification,
+he must create a new notification and copy the data. In the future, there might be the possibility to add a "Duplicate notification" or "Copy notification" process to Trace-X, but that is out of scope for this concept.
+
+# Concept
+## Backend
+Messages within one notification can only be sent between **two** BPNs. To make it possible to send notifications to multiple BPNs, notifications are duplicated during the creation process.
+A unique grouping label will be set for each notification created during the same process to identify notifications belonging to the same 'topic'. This label can be added/removed afterwards.
+It is an optional field and during the creation process, it will be checked if the case is already in use. If it is, the user will be notified to change the case.
+
+```diff
+{
+    "id": 423,
+    "title": null,
+    "status": "CREATED",
+    "description": "2024-04-25T07:46:29.523Z-requested-by-chris",
++   "case": "CASE-ID123",
+    "createdBy": null,
+    "createdByName": null,
+    "createdDate": "2024-04-25T07:28:42.538791Z",
+    "assetIds": [
+        "urn:uuid:5205f736-8fc2-4585-b869-6bf36842369a"
+    ],
+    "channel": "SENDER",
+    "reason": {
+        "close": null,
+        "accept": null,
+        "decline": null
+    },
+    "sendTo": null,
+    "sendToName": null,
+    "severity": "MINOR",
+    "type": "ALERT",
+    "targetDate": null,
+    "messages": []
+}
+```
+
+#### Alert creation
+When an alert is created, multiple BPNs can be selected. For each of the recipients the notification will be duplicated.
+The data will be identical except for the "createdFor" and "createdForName" fields.
+If the data must be changed, the user can do it afterward in the "edit notification" view.
+
+#### Investigation creation
+When an investigation is created, multiple parts can be selected. Whenever a part from a different BPN is selected, the notification will be duplicated.
+The data will be identical except for the "createdFor", "createdForName" and "assetIds" fields. Each notification will only contain parts from the same BPN.
+If the data must be changed, the user can do it afterward in the "edit notification" view.
+
+#### Edit notifications
+When editing notifications, only parts with the identical BPN as the "createdFor" BPN will be shown and the user may not add BPNs manually.
+There is no possibility to create a new notification from the "Edit notifications" process.
+If the user wants to send an existing notification to a different BPN, he must copy the data and use the "Create notification" process.
+
+## Frontend
+![multiple-bpns-modals.png](multiple-bpns-modals.png)
+![notification-creation-bpn-selection.png](notification-creation-bpn-selection.png)
+
+New case label:
+![case-label.png](case-label.png)
+
+See https://miro.com/app/board/uXjVO5JVoho=/?moveToWidget=3458764586657591852&cot=10
+
+# Additional Details
+Given the dynamic nature of ongoing development, there might be variations between the conceptualization and the current implementation. For the latest status, refer to the documentation.