ohctech_p8/rule_eval.php

<?php
include('includes/config/config.php');
include('includes/functions.php');
include('log_entry.php');
error_log("Start Printing Request Attributes");
foreach ($_REQUEST as $key => $value) {
    error_log($key . " : " . $value . "\n");
}
error_log("End Printing Request Attributes");
$checkup_type_id = $_REQUEST['rule_param_id_onc'];

error_log("into rele val");
$final_result = [];
$param_data = [];
$data = [];
// start steps
// select every section from checkup type id and after that select every rule that is associated in every section 

$pat_dob = $_REQUEST['pat_age'];
$pat_gender = $_REQUEST['pat_gender'];
$today = date("Y-m-d");
error_log("pat_dob " . $pat_dob);
$age = ($today - $pat_dob);
error_log("age " . $age);

if ($checkup_type_id != '' && $checkup_type_id != null && !empty($checkup_type_id)) {

    $sql = "select * from checkup_type where checkup_type_id='" . $checkup_type_id . "'";
    $result = mysqli_query($conn, $sql);
    $row = mysqli_fetch_assoc($result);

    $section_id = $row['checkup_form_section_ids'];
    $section_id = explode(",", $section_id);

    error_log("type of var " . gettype($section_id) . "  values " . print_r($section_id, true));
    // $section_ids = getCommaSeperatedValuesToInClause($section_id);
    // now selecting rule equations using section ids  from section table
    for ($i = 0; $i < count($section_id); $i++) {
        error_log("section id is" . $section_id[$i]);
        $sql_section = "select * from checkup_form_section where section_id ='" . $section_id[$i] . "' having rule_ids!= ''";
        error_log("query for section " . $sql_section);
        $result_section = mysqli_query($conn, $sql_section);
        while ($row_section = mysqli_fetch_assoc($result_section)) {

            $rule_eq = getCommaSeperatedValuesToInClause($row_section['rule_ids']);

            $rule_sql = "select * from rule_equation where rule_eq_id in $rule_eq";

            error_log("rule sql " . $rule_sql);

            $result_rule = mysqli_query($conn, $rule_sql);

            // now running loop for every selected rule equations
            while ($row_rule = mysqli_fetch_assoc($result_rule)) {

                $rule_age_start = $row_rule['rule_age_start'];
                $rule_age_end = $row_rule['rule_age_end'];
                $rule_gender = $row_rule['rule_gender'];

                $result_id = $row_rule['result'];
                error_log("it has the result field value of " . $result_id);
                error_log("equation age gender data " . $rule_age_start . " " . $rule_age_end . " " . $rule_gender);
                if (intval($rule_age_end) != 0) {
                    if (intval($rule_age_start) > intval($age)) {
                        error_log("got here and continue for age mismatch" . $rule_age_start . " " . $age);
                        continue;
                    } else if (intval($rule_age_end) < intval($age)) {
                        error_log("got here and continue for age mismatch" . $rule_age_end . " " . $age);
                        continue;
                    }
                }
                if (($rule_gender != "" || $rule_gender != null) && $rule_gender != $pat_gender) {
                    error_log("got here and continue for gender mismatch");
                    continue;
                } else {
                    $equation = "";

                    $rule_save = "select * from rule_save where equation_rule_id='" . $row_rule['rule_eq_id'] . "'";
                    error_log("rule save " . $rule_save);

                    $result_rule_save = mysqli_query($conn, $rule_save);


                    //making the rule equation and running 
                    while ($row_rule_save = mysqli_fetch_assoc($result_rule_save)) {
error_log( $row_rule_save['checkup_parameter'] .  " CheckUo Parameter"  );
                        $key_name = getFieldFromTable('key_param_name', 'key_health_reportable_parameter_master', 'key_param_id', $row_rule_save['checkup_parameter']);

                        $checkup_parameter = "";

                        // $checkup_parameter_sql = "select column_name from checkup_parameter where key_health_map_name='" . $row_rule_save['checkup_parameter'] . "' and checkup_form_section_id='".$row_section['section_id']."' and FIND_IN_SET('" . $checkup_type_id . "',checkup_type_ids)";

                        $checkup_parameter_sql = "select column_name from checkup_parameter where key_health_map_name='" . $row_rule_save['checkup_parameter'] . "' and checkup_form_section_id='" . $row_section['section_id'] . "'";

                        error_log("to get parameter id name " . $checkup_parameter_sql);

                        $result_param = mysqli_query($conn, $checkup_parameter_sql);

                        while ($row_param = mysqli_fetch_assoc($result_param)) {
                            $checkup_parameter = $row_param['column_name'];
                        }

                        error_log("checkup_parameter " . $checkup_parameter);

                        $condition = getTableFieldValue('rule_condition', 'condition_sy', 'rule_condition_id', $row_rule_save['condition_id']);

                        error_log("condition " . $condition);

                        $joiner = getTableFieldValue('rule_joiner', 'joiner_sy', 'rule_joiner_id', $row_rule_save['joiner_id']);

                        error_log("joiner " . $joiner);


                        $user_entered_param_value = $_REQUEST[$checkup_parameter];

                        error_log("result_param: " . $result_id);
                        error_log("value " . $user_entered_param_value);
                        if ($result_id === "0" || $result_id === 0) {
                            if ($user_entered_param_value == "") {
                                // break;
                            } else {
                                $equation = $equation . $joiner . $row_rule_save['op_br'] . $user_entered_param_value . $condition . $row_rule_save['rule_s_val'] . $row_rule_save['cl_br'];

                                error_log("equation " . $equation);
                            }
                        } else {
                            if ($user_entered_param_value == "" && $row_rule_save['rule_s_val'] != '0') {
                                $equation = $equation . $joiner . $row_rule_save['op_br'] . $condition . $row_rule_save['rule_s_val'] . $row_rule_save['cl_br'];

                                error_log("got here equation is in else if " . $equation);
                            } else {
                                if ($row_rule_save['rule_s_val'] == '0') {
                                    $equation = $equation . $joiner . $row_rule_save['op_br'] . $user_entered_param_value . $condition . $row_rule_save['cl_br'];

                                    error_log("got here equation is in else in if " . $equation);
                                } else {
                                    $equation = $equation . $joiner . $row_rule_save['op_br'] . $user_entered_param_value . $condition . $row_rule_save['rule_s_val'] . $row_rule_save['cl_br'];
                                    error_log("got here equation is in else in else " . $equation);
                                }

                                error_log("equation " . $equation);
                            }
                        }
                    }

                    if ($equation != "" && ($result_id == "" || $result_id == 0 || $result_id == null)) {
                        eval("\$resultr = $equation;");

                        error_log("result " . $resultr);

                        if ($resultr == 1 || $resultr == true) {
                            $abnormality = getFieldFromTable('abnormality_name', 'abnormality', 'abnormality_id', $row_rule['abnormality']);
                            error_log("abnormalities " . $abnormality);

                            array_push($data, $abnormality);

                            error_log("abnormalities " . print_r($data, true));
                        }
                    } else if ($equation != "" && ($result_id != "" && $result_id != 0 && $result_id != null)) {

                        error_log("we got the equation " . $equation);

                        $final_cal_val =  solveMathExpression($equation);

                        $checkup_parameter_id = getFieldFromTable('column_name', 'checkup_parameter', 'checkup_parameter_id', $result_id);

                        $param_data[$checkup_parameter_id] = $final_cal_val;
                    }
                }
            }
        }
    }
} else {
    $patient_id = $_REQUEST['emp_id'];

    error_log("patient id " . $patient_id);
    $pat_dob = getFieldFromTable('dob', 'patient_master', 'id', $patient_id);

    $today = date("Y-m-d");
    error_log("pat_dob " . $pat_dob);
    $age = ($today - $pat_dob);
    error_log("age " . $age);

    $pat_gender = getFieldFromTable('gender', 'patient_master', 'id', $patient_id);
    error_log("patient gender " . $pat_gender);
    
    $sql_section = "";
    if ($_REQUEST['appointment_type'] == 'O') {
        $sql_section = "select * from checkup_parameter where opd_param='1' having rule_ids!= ''";
    } else if ($_REQUEST['appointment_type'] == 'I') {
        $sql_section = "select * from checkup_parameter where inj_param='1' having rule_ids!= ''";
    }
    error_log("query for rules " . $sql_section);
    $result_section = mysqli_query($conn, $sql_section);
    while ($row_section = mysqli_fetch_assoc($result_section)) {

        $rule_eq = getCommaSeperatedValuesToInClause($row_section['rule_ids']);

        $rule_sql = "select * from rule_equation where rule_eq_id in $rule_eq";

        error_log("rule sql " . $rule_sql);

        $result_rule = mysqli_query($conn, $rule_sql);

        // now running loop for every selected rule equations
        while ($row_rule = mysqli_fetch_assoc($result_rule)) {

            $rule_age_start = $row_rule['rule_age_start'];
            $rule_age_end = $row_rule['rule_age_end'];
            $rule_gender = $row_rule['rule_gender'];

            $result_id = $row_rule['result'];
            error_log("it has the result field value of " . $result_id);
            error_log("equation age gender data " . $rule_age_start . " " . $rule_age_end . " " . $rule_gender);
            if (intval($rule_age_end) != 0) {
                if (intval($rule_age_start) > intval($age)) {
                    error_log("got here and continue for age mismatch" . $rule_age_start . " " . $age);
                    continue;
                } else if (intval($rule_age_end) < intval($age)) {
                    error_log("got here and continue for age mismatch" . $rule_age_end . " " . $age);
                    continue;
                }
            }
            if (($rule_gender != "" || $rule_gender != null) && $rule_gender != $pat_gender) {
                error_log("got here and continue for gender mismatch");
                continue;
            } else {
                $equation = "";

                $rule_save = "select * from rule_save where equation_rule_id='" . $row_rule['rule_eq_id'] . "'";
                error_log("rule save " . $rule_save);

                $result_rule_save = mysqli_query($conn, $rule_save);


                //making the rule equation and running 
                while ($row_rule_save = mysqli_fetch_assoc($result_rule_save)) {

                    $key_name = getFieldFromTable('kay_param_name', 'key_health_reportable_parameter_master', 'key_param_id', $row_rule_save['checkup_parameter']);

                    $checkup_parameter = "";


                    if ($_REQUEST['appointment_type'] == 'O') {
                        $checkup_parameter_sql = "select column_name from checkup_parameter where key_health_map_name='" . $row_rule_save['checkup_parameter'] . "' and opd_param='1'";
                    } else if ($_REQUEST['appointment_type'] == 'I') {
                        $checkup_parameter_sql = "select column_name from checkup_parameter where key_health_map_name='" . $row_rule_save['checkup_parameter'] . "' and inj_param='1'";
                    }

                    error_log("to get parameter id name " . $checkup_parameter_sql);

                    $result_param = mysqli_query($conn, $checkup_parameter_sql);

                    while ($row_param = mysqli_fetch_assoc($result_param)) {
                        $checkup_parameter = $row_param['column_name'];
                    }

                    error_log("checkup_parameter " . $checkup_parameter);

                    $condition = getTableFieldValue('rule_condition', 'condition_sy', 'rule_condition_id', $row_rule_save['condition_id']);

                    error_log("condition " . $condition);

                    $joiner = getTableFieldValue('rule_joiner', 'joiner_sy', 'rule_joiner_id', $row_rule_save['joiner_id']);

                    error_log("joiner " . $joiner);


                    $user_entered_param_value = $_REQUEST[$checkup_parameter];

                    error_log("result_param: " . $result_id);
                    error_log("value " . $user_entered_param_value);
                    if ($result_id === "0" || $result_id === 0) {
                        if ($user_entered_param_value == "") {
                            // break;
                        } else {
                            $equation = $equation . $joiner . $row_rule_save['op_br'] . $user_entered_param_value . $condition . $row_rule_save['rule_s_val'] . $row_rule_save['cl_br'];

                            error_log("equation " . $equation);
                        }
                    } else {
                        if ($user_entered_param_value == "" && $row_rule_save['rule_s_val'] != '0') {
                            $equation = $equation . $joiner . $row_rule_save['op_br'] . $condition . $row_rule_save['rule_s_val'] . $row_rule_save['cl_br'];

                            error_log("got here equation is in else if " . $equation);
                        } else {
                            if ($row_rule_save['rule_s_val'] == '0') {
                                $equation = $equation . $joiner . $row_rule_save['op_br'] . $user_entered_param_value . $condition . $row_rule_save['cl_br'];

                                error_log("got here equation is in else in if " . $equation);
                            } else {
                                $equation = $equation . $joiner . $row_rule_save['op_br'] . $user_entered_param_value . $condition . $row_rule_save['rule_s_val'] . $row_rule_save['cl_br'];
                                error_log("got here equation is in else in else " . $equation);
                            }

                            error_log("equation " . $equation);
                        }
                    }
                }

                if ($equation != "" && ($result_id == "" || $result_id == 0 || $result_id == null)) {
                    eval("\$resultr = $equation;");

                    error_log("result " . $resultr);

                    if ($resultr == 1 || $resultr == true) {
                        $abnormality = getFieldFromTable('abnormality_name', 'abnormality', 'abnormality_id', $row_rule['abnormality']);
                        error_log("abnormalities " . $abnormality);

                        array_push($data, $abnormality);

                        error_log("abnormalities " . print_r($data, true));
                    }
                } else if ($equation != "" && ($result_id != "" && $result_id != 0 && $result_id != null)) {

                    error_log("we got the equation " . $equation);

                    $final_cal_val =  solveMathExpression($equation);

                    $checkup_parameter_id = getFieldFromTable('column_name', 'checkup_parameter', 'checkup_parameter_id', $result_id);

                    $param_data[$checkup_parameter_id] = $final_cal_val;
                }
            }
        }
    }
}
// end steps

function solveMathExpression($expression)
{
    // Define a regular expression pattern to match a valid math expression
    // $pattern = "/^[-+]?[0-9]*\.?[0-9]+([eE][-+]?[0-9]+)?(\s*[-+*\/]\s*[-+]?[0-9]*\.?[0-9]+([eE][-+]?[0-9]+)?)*$/";

    // Check if the math expression matches the pattern
    // if (preg_match($pattern, $expression)) {
        try {
            if (preg_match('/\/\s*0(?!\d)/', $expression)) {
                throw new DivisionByZeroError("Division by zero detected in expression: $expression");
            }
            return round(eval("return ($expression);"), 2);
        } catch (DivisionByZeroError $e) {
            error_log("Division by zero error: " . $e->getMessage());
            return null; // Or handle the error gracefully
        } catch (ParseError $e) {
            error_log("Parse error in expression: " . $e->getMessage());
            return null; // Or handle parse errors
        }
        
    // } else {
    // error_log("equation is not valid");
    // }
}
$final_result = array(
    'data' => $data,
    'result' => $param_data
);

error_log("final result data " . print_r($final_result, true));
echo json_encode($final_result);