Ability for App or Service Provider to Decline the Subscription request

[saadanzari]

Description

We have apps and service’s subscriptions which we want to “Decline” by App/Service Provider or Admin type of users. Currently we only have Activate and Deactivate Subscription functionality by App/Service Provider type of users.

Acceptance Criteria

• App/Service Provider or Admin type of users could “Decline” the subscription request, made by the users of same company or another company.
• App/Service Provider or Admin type of users wouldn’t be able to Re-Activate the declined subscription request.
• The declination can only take place after the subscription request and before the activation of the subscription request.
• Subscription request would just simply be removed from the list of subscription requests, after the declination.
• Frontend may ask for the confirmation of declination before sending request to backend.
• This declination would remove the subscription request but requester (subscriber) would still have the possibility to subscribe the same App/Service from the same, App/Service Details page.

Additional Information

1. Frontend would still be looking at the isSubscribed param from api/apps/{appId} API to make decisions upon showing different statuses of subscription on App Details Page
2. Frontend would need to show another button as “Decline“ on App/Service Subscription page only when "offerSubscriptionStatus": "PENDING" in /api/Apps/provided/subscription-status API.
3. Frontend may show a confirmation box to user and then call this new API, when user confirm.
4. Frontend would have to refresh the list after the declination.

Reference

eclipse-tractusx/portal-backend#1140