feat: Add duty schedule management with service, controller, and tests.

Author: arosha-w

src/main/java/com/crimeLink/analyzer/controller/DutyScheduleController.java

@@ -86,4 +86,17 @@ public ResponseEntity<byte[]> getDutyScheduleReportPdf(
 
         return new ResponseEntity<>(pdfBytes, headers, HttpStatus.OK);
     }
+
+    // 5) Bulk create / update duties
+    @PostMapping("/bulk")
+    public ResponseEntity<?> createDutiesBulk(@RequestBody List<DutyScheduleRequest> requests) {
+        try {
+            List<DutySchedule> saved = dutyService.createDuties(requests);
+            return ResponseEntity.status(HttpStatus.CREATED).body(saved);
+        } catch (IllegalArgumentException ex) {
+            return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(ex.getMessage());
+        } catch (Exception ex) {
+            return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body("Failed to save duties");
+        }
+    }
 }

src/main/java/com/crimeLink/analyzer/service/DutyScheduleService.java

@@ -174,10 +174,12 @@ public DutySchedule createDuty(DutyScheduleRequest req) {
     }
 
     // Bulk create/update duties
-    public void createDuties(List<DutyScheduleRequest> requests) {
+    public List<DutySchedule> createDuties(List<DutyScheduleRequest> requests) {
+        List<DutySchedule> results = new ArrayList<>();
         for (DutyScheduleRequest req : requests) {
-            createDuty(req);
+            results.add(createDuty(req));
         }
+        return results;
     }
     // Update only the status of an existing duty
     @Transactional

src/test/java/com/crimeLink/analyzer/controller/DutyScheduleControllerTest.java

@@ -129,4 +129,38 @@ void getDutyScheduleReportPdf_shouldReturnPdf() throws Exception {
                 .andExpect(status().isOk())
                 .andExpect(content().contentType(MediaType.APPLICATION_PDF));
     }
+
+    @Test
+    void createDutiesBulk_shouldReturn201() throws Exception {
+        DutySchedule duty = new DutySchedule();
+        duty.setId(1L);
+
+        when(dutyService.createDuties(any())).thenReturn(List.of(duty));
+
+        DutyScheduleRequest request = new DutyScheduleRequest();
+        request.setOfficerId(1);
+        request.setDate(LocalDate.of(2026, 3, 13));
+        request.setStatus(DutyStatus.Active);
+        request.setTimeRange("06:00-21:00");
+        request.setLocation("Matara");
+
+        mockMvc.perform(post("/api/duty-schedules/bulk")
+                        .contentType(MediaType.APPLICATION_JSON)
+                        .content(objectMapper.writeValueAsString(List.of(request))))
+                .andExpect(status().isCreated());
+    }
+
+    @Test
+    void createDutiesBulk_shouldReturn400_whenValidationError() throws Exception {
+        when(dutyService.createDuties(any()))
+                .thenThrow(new IllegalArgumentException("OfficerId is required"));
+
+        DutyScheduleRequest request = new DutyScheduleRequest();
+
+        mockMvc.perform(post("/api/duty-schedules/bulk")
+                        .contentType(MediaType.APPLICATION_JSON)
+                        .content(objectMapper.writeValueAsString(List.of(request))))
+                .andExpect(status().isBadRequest())
+                .andExpect(content().string("OfficerId is required"));
+    }
 }