<?php
include('includes/config/config.php');
include('includes/functions.php');
include('log_entry.php');
$id = $_POST['id'];

$noOfRows = $_POST['count_items'];

error_log("rows" . $noOfRows);

$query_initial = "";

$isUpdateCase = false;

if (!empty($id)) {
    $query_initial = "update diagnosis_chronic_mapping ";
    $end_query = "where id = '" . $id . "'";
    $isUpdateCase = true;
} else {
    $query_initial = "insert into diagnosis_chronic_mapping ";
}

$response = [];

$num = 0;

for ($i = 0; $i < $noOfRows; $i++) {

    if (!$isUpdateCase) {
        // check if that particular chronic illness and diagnosis mapped already because we cant allow one chronic illness mapped to multiple diagnosis 

        $exist_sql = "select * from diagnosis_chronic_mapping where chronic_id='" . ${"illness_name$i"} . "'";
        error_log("exist query " . $exist_sql);
        $result_exist = mysqli_query($conn, $exist_sql);
        $row_exist = mysqli_num_rows($result_exist);

        $chronic_name = getFieldFromTable('abnormality_name', 'abnormality', 'abnormality_id', ${"illness_name$i"});

        if ($row_exist > 0) {
            $response[$num++] = strtolower($chronic_name);
        } else {
            $query = $query_initial . " set ailment_id='" . ${"diag_name$i"} . "',chronic_id='" . ${"illness_name$i"} . "',modified_by = '" . $_SESSION['user_id'] . "'" . $end_query;

            error_log("map update/insert query " . $query);
            if (!$result = @mysqli_query($conn, $query)) {
                error_log("Failed to Update the mapping. Error Found" . mysqli_error($conn) . ". Failing Query:" . $query);
                exit(mysqli_error($conn));
            }
        }
    } else {
        $query = $query_initial . " set ailment_id='" . ${"diag_name$i"} . "',chronic_id='" . ${"illness_name$i"} . "',modified_by = '" . $_SESSION['user_id'] . "'" . $end_query;

        error_log("map update/insert query " . $query);
        if (!$result = @mysqli_query($conn, $query)) {
            error_log("Failed to Update the mapping. Error Found" . mysqli_error($conn) . ". Failing Query:" . $query);
            exit(mysqli_error($conn));
        }
    }
}
$response = array_unique($response);
error_log("data " . print_r($response, true));
echo json_encode($response);