formiLogic.php

<?php
    //Working in progress
    $arguments =[
        'formID' => 1046668,
        'variableValue' => '{hidden-1}',
        'fixedValue' => 25,
        'showField' => '{text-2}',
        'triggerField' => '{text-1},{text-3}',
        'logic' => 'if({text-1}>=5 && {text-1}<=9){{hidden-1}=fixedValue*0.9}else if({text-1}>=10 && {text-1}<=16){{hidden-1}=fixedValue*0.8}else{{hidden-1}=fixedValue}'
    ];
    $js_var =[];

    $patron = '/{(\w+)-(\d+)}/';
    $declaration_replacement = '${1}-$2';
    $replacement = '${1}$2';
    $math_pathern = '/([-+]?[0-9]*\.?[0-9]+[\/\+\-\*])+([-+]?[0-9]*\.?[0-9]+)/';
    $conditional = '';

    $js_code ='';
    $js_code .='if(jQuery("#forminator-module-'.$arguments['formID'].'")){ ';
        if($arguments['variableValue']){
            $hidden = preg_replace($patron, $declaration_replacement, $arguments['variableValue']);
            $js_declaration_variableValue = 'var variableField = jQuery("#'.$hidden.'"); ';
            $js_code .=$js_declaration_variableValue;
            $js_var[$arguments['variableValue']] = 'variableField';
        }
        if($arguments['fixedValue']){
            
            $js_declaration_fixedValue = 'var fixedValue = '.$arguments['fixedValue'].'; ';
            $js_code .=$js_declaration_fixedValue;
            $js_var[$arguments['fixedValue']] = 'fixedValue';
        }
        if($arguments['showField']){
            $showField = preg_replace($patron, $declaration_replacement, $arguments['showField']);
            $js_declaration_showField = ' var showField = jQuery("#forminator-field-'.$showField.'");
            showField.prop("disabled", true);';
            $js_code .=$js_declaration_showField;
            $js_var[$arguments['showField']] = 'showField';
        }

        if($arguments['triggerField']){
            $arguments['triggerField'] = str_replace(' ', '', $arguments['triggerField']);
            $manyTriggers = strpos($arguments['triggerField'], ",");
            if($manyTriggers === false){
                $triggerField = preg_replace($patron, $declaration_replacement, $arguments['triggerField']);
                $sufix = preg_replace($patron, $replacement, $arguments['triggerField']);
                $js_declaration_triggerField = ' var triggerField'.$sufix.' = jQuery("#forminator-field-'.$triggerField.'");';
                $js_code .=$js_declaration_triggerField;
                $js_var[$arguments['triggerField']] = 'triggerField'.$sufix;
                $js_var['triggers'] []= 'triggerField'.$sufix;

            }else{

                $triggerFieldArray = explode (",", $arguments['triggerField']);
                foreach ($triggerFieldArray as $trigger) {
                    $triggerField = preg_replace($patron, $declaration_replacement, $trigger);
                    $sufix = preg_replace($patron, $replacement, $trigger);
                    $js_declaration_triggerField = ' var triggerField'.$sufix.' = jQuery("#forminator-field-'.$triggerField.'");';
                    $js_code .=$js_declaration_triggerField;
                    $js_var[$trigger] = 'triggerField'.$sufix;
                    $js_var['triggers'] []= 'triggerField'.$sufix;
                }
            }
            
            
        }

        if($arguments['logic']){
            $conditional = str_replace(' ', '', $arguments['logic']);
            $matches = array();
            $math = array();
            preg_match_all($patron, $conditional, $matches);
            

            echo '<br>';

            foreach ($matches[0] as $match) {

                    $conditional = str_replace($match, $js_var[$match].".val()",$conditional);
                    
              
                
            }
            $conditional = preg_replace($math_pathern, "$0", $conditional);
            $conditional = str_replace('variableField.val()=', 'variableField.val(',$conditional);
            $conditional = str_replace('}', ');}',$conditional);
            $conditional = str_replace('elseif', 'else if',$conditional);
            $conditional = str_replace('&&', ' && ',$conditional);
            $conditional = str_replace('||', ' || ',$conditional);

            $js_function ='function applyDiscountForm'.$arguments['formID'].'(){';
            
            $js_function .= $conditional;
            $js_function .= 'showField.val(variableField.val());' ;
            $js_function .='}';
            $js_code .=$js_function ;

        }

        foreach ($js_var['triggers'] as $trigger) {
            $js_code .=$trigger.'.change(applyDiscountForm'.$arguments['formID'].');' ;
        }
        

    $js_code .='}';
    echo $js_code;

?>