<?php 
include('includes/config/config.php');
include("includes/functions.php");
include("log_entry.php");

$request_type=$_REQUEST['request_type'];

switch($request_type)
{
	
	case 'check_if_uniquefield_exists':
		$tableName=$_REQUEST['tableName'];
		$uniqueColumnNm=$_REQUEST['uniqueColumnNm'];
		$uniqueColumnVal=$_REQUEST['uniqueColumnVal'];
		
		$query = "select * from ".$tableName." where upper(".$uniqueColumnNm.") = upper('".$uniqueColumnVal."') ";
		if (!$result = @mysqli_query($conn,$query)) {
			error_log("error in query checking unique value:".mysqli_errno($conn)." Query:".$query);
			exit(mysqli_error($conn));
		}else{
			if(mysqli_num_rows($result) > 0) {
				echo "true";
			}else{
				echo "false";
			}
		}
		
		break;
	
	case 'selectAllTableElementsByIdJSON':
		$tableName=$_REQUEST['tableName'];
		$idColumn=$_REQUEST['idCol'];
		$idColumnVal=$_REQUEST['idColVal'];
		$query = "select * from ".$tableName." where $idColumn ='".$idColumnVal."' ";
		error_log("Query:".$query);
		
		if (!$result = @mysqli_query($conn,$query)) {
			error_log("error in query reading table values:".mysqli_error($conn)." Query:".$query);
			exit(mysqli_error($conn));
		}else{
			if(mysqli_num_rows($result) > 0) {
			 while ($row = mysqli_fetch_assoc($result)) {
          	 	 $data[] = $row;
      		}
			}else{
				 $data['status'] = 200;
       			 $data['message'] = "Data not found!";
			}
			echo json_encode($data);
		}
	break; 
	
	case 'selectedTableElementsByIdJSON':
		$tableName=$_REQUEST['tableName'];
		$idColumn=$_REQUEST['idCol'];
		$idColumnVal=$_REQUEST['idColVal'];
		$resultColumnVal=$_REQUEST['resultColumnVal'];
		$query = "select $resultColumnVal from ".$tableName." where $idColumn ='".$idColumnVal."' ";
		error_log("Query selectedTableElementsByIdJSON:".$query);
		
		if (!$result = @mysqli_query($conn,$query)) {
			error_log("error in query reading table values:".mysqli_error($conn)." Query:".$query);
			exit(mysqli_error($conn));
		}else{
			if(mysqli_num_rows($result) > 0) {
			 while ($row = mysqli_fetch_assoc($result)) {
          	 	 $data[] = $row[$resultColumnVal];
      		}
			}else{
				 $data['status'] = 200;
       			 $data['message'] = "Data not found!";
			}
			echo json_encode($data);
		}
	break; 
	case 'getDispensaryItemAvailableQty':
		$ohcTypeId=$_REQUEST['ohc_type_id'];
		$itemId=$_REQUEST['item_id'];
		$item_stock=getStockQtyAtDispensaryLevel($itemId, $ohcTypeId);
		if ($item_stock==null) {
			$data['status'] = 200;
			$data['message'] = "Data not found!";
			error_log("error in query item stock for dispensary. Please check if the input params are right.:ohc_type_id:".$ohcTypeId." item_id:".$itemId);
		}else{
			$data['item_available_qty'] = $item_stock;
		}
		echo json_encode($data);
		
		break;
}//end of switch
?>