add sequencing tab

dashboard/app/Http/Controllers/Api/DashboardController.php

@@ -155,19 +155,49 @@ class DashboardController extends Controller
     //         return response()->json(['error' => 'Missing epiweek range'], 400);
     //     }
 
-        return response()->json($data);
-    }
+    //     return response()->json($data);
+    // }
 
-    public function fetchSourceData(){
-        try{
+    public function fetchSourceData()
+    {
+        try {
             $this->dataRetrievalService->getSurveillanceData();
             return response()->json(['message' => 'Data loaded successfully!'], 200);
-        }
-        catch (\Exception $e)
-        {
+        } catch (\Exception $e) {
             return response()->json(['error' => 'Data loaded unsuccessfully!'], 400);
         }
     }
 
+    /*
+    |--------------------------------------------------------------------------
+    | Sequencing Dashboard
+    |--------------------------------------------------------------------------
+    */
+
+    public function sequencing(Request $request)
+    {
+        $surveillanceId = (int) $request->query('surveillance_id');
+        $range = $this->getEpiRange($request);
+
+        if (!$surveillanceId || !$range) {
+            return response()->json(['error' => 'Missing parameters'], 400);
+        }
+
+        return response()->json([
+            'trend' => $this->service->sequencingTrend(
+                $surveillanceId,
+                $range['startYear'],
+                $range['startWeek'],
+                $range['endYear'],
+                $range['endWeek']
+            ),'distribution' => $this->service->subtypeDistribution(
+                $surveillanceId,
+                $range['startYear'],
+                $range['startWeek'],
+                $range['endYear'],
+                $range['endWeek']
+            )
+        ]);
+    }
 
 }