✨ feat(backend): add API that unseats all participants of an event

Author: ge85riz

backend/src/main/java/com/itestra/eep/services/SeatAllocationService.java

@@ -15,6 +15,8 @@ public interface SeatAllocationService {
 
     Map<UUID, List<UUID>> findEmployeeIdsSittingWithAcquaintances(UUID eventId);
 
+    void unsetAllChairAssignmentsOfEvent(UUID eventId);
+
     <T extends Participation> void assignOneParticipantToChairAndPersistNewNeighbors(UUID participationId, UUID chairId, UUID eventId,
                                                                                      Class<T> participationClass, UUID[] neighborProfileIds);
 

backend/src/main/java/com/itestra/eep/services/impl/SeatAllocationServiceImpl.java

@@ -70,6 +70,12 @@ public Map<UUID, List<UUID>> findEmployeeIdsSittingWithAcquaintances(UUID eventI
         return previousMatchesRepository.findEmployeeIdsSittingWithAcquaintances(eventId, CUT_OFF_YEAR);
     }
 
+    @Override
+    public void unsetAllChairAssignmentsOfEvent(UUID eventId) {
+        chairRepository.unsetAllEmployeeParticipationChairsByEventId(eventId);
+        chairRepository.unsetAllVisitorParticipationChairsByEventId(eventId);
+    }
+
     @Override
     public <T extends Participation> void assignOneParticipantToChairAndPersistNewNeighbors(UUID participationId, UUID chairId, UUID eventId,
                                                                                             Class<T> participationClass, UUID[] neighborProfileIds) {

backend/src/main/java/com/itestra/eep/webcontroller/SeatAllocationController.java

@@ -54,4 +54,11 @@ public ResponseEntity<Map<UUID, List<UUID>>> findEmployeesSittingWithAcquaintanc
         return new ResponseEntity<>(acquaintancesMap, HttpStatus.OK);
     }
 
+    @GetMapping("/{eventId}/unsetAllChairs")
+    @PreAuthorize("hasAuthority('ADMIN')")
+    public ResponseEntity<Boolean> unsetAllChairAssignmentsOfEvent(@PathVariable UUID eventId) {
+        seatAllocationService.unsetAllChairAssignmentsOfEvent(eventId);
+        return ResponseEntity.ok(true);
+    }
+
 }