public function getSalesChannelReport(Request $request)
 {
     $query = PurchaseOrder::select(DB::raw('sales_channels.name'), DB::raw('count(purchase_orders.id) as pocount'), DB::raw('sum(purchase_orders.total) as pototal'));
     $reportParams = $request->input('reportParams');
     if (isset($reportParams['sales_channel_from_date']) && $reportParams['sales_channel_from_date'] !== '') {
         $sDate = new Carbon($reportParams['sales_channel_from_date']);
         $query->whereDate('purchase_orders.created_at', '>=', $sDate->toDateString());
     }
     if (isset($reportParams['sales_channel_to_date']) && $reportParams['sales_channel_to_date'] !== '') {
         $eDate = new Carbon($reportParams['sales_channel_to_date']);
         $query->whereDate('purchase_orders.created_at', '<=', $eDate->toDateString());
     }
     $query->join('sales_channels', 'purchase_orders.sales_channel_id', '=', 'sales_channels.id');
     $query->groupBy(DB::raw('purchase_orders.sales_channel_id'));
     $query->orderBy('sales_channels.name', 'asc');
     $dataPoints = $query->get();
     return response()->json($dataPoints);
 }