provider_dashboard_fix: Modified Query for better result searching

Author: Riyad-Murad

amp-laravel/app/Services/Provider/GetAverageVoltageService.php

@@ -2,15 +2,35 @@
 
 namespace App\Services\Provider;
 
+use DateTime;
 use App\Models\Master;
 use App\Models\Metric;
-use App\Models\User;
 
 class GetAverageVoltageService
 {
-    public static function getAverageVoltage(int $providerId): float
+    public static function getAverageVoltage(int $providerId): array
     {
         $masterIds = Master::where('user_id', $providerId)->pluck('id');
-        return round(Metric::whereIn('master_id', $masterIds)->avg('voltage'), 2);
+
+        $averageVoltageByDay = Metric::whereIn('master_id', $masterIds)
+            ->selectRaw('SUBSTRING(date_month, 1, 5) as day_month, AVG(voltage) as average_voltage')
+            ->groupBy('day_month')
+            ->orderBy('day_month')
+            ->get()
+            ->mapWithKeys(function ($item) {
+                try {
+                    $date = DateTime::createFromFormat('m-d', $item->day_month);
+                    if ($date) {
+                        return [$date->format('Y-m-d') => round($item->average_voltage, 2)];
+                    }
+                } catch (\Exception $e) {
+                    return [];
+                }
+                return [];
+            })
+            ->filter()
+            ->toArray();
+
+        return $averageVoltageByDay;
     }
 }