<?php
namespace ExpandOps\AAAFoundation\Classes\V1;
defined('ABSPATH') || exit;
use ExpandOps\AAAFoundation\Classes\V1\BaseLog;
class BaseValidationRule
{
    protected mixed $value = '';
    protected string $field_id = '';
    protected mixed $response = '';
    protected array $validator_rule_classes = [];
    protected array $saved_options = [];
    public function __construct( $field_id, $value, $saved_options )
    { 
        $this->field_id = preg_replace( '/[^a-zA-Z0-9_\-]/', '', (string) $field_id ); 
        $this->setValue($value);
        $this->setSavedOptions( $saved_options );
        $this->setResponse(); 
    } 
    protected function setValue( $value )
    {
        if ( is_string($value) )
        {
            $value = $this->sanitiseString($value);
        } 
        elseif ( is_array($value) )
        {
            $value = array_map( [$this, 'sanitiseString'], $value );
        }
        $this->value = $value;
    } 
    public function getValue()
    {
        return $this->value;
    } 
    protected function setSavedOptions( $saved_options )
    {
        $this->saved_options = $saved_options;
    } 
    public function getSavedOptions( $key = '' )
    {
        if( '' !== $key )
        {
            if( isset($this->saved_options[$key]) )
            {
                return $this->saved_options[$key]; 
            }
            return null; 
        }
        return $this->saved_options; 
    } 
    protected function setResponse()
    {
        if ( method_exists( $this, $this->field_id ) )
        {
            $this->response = $this->{$this->field_id}( $this->getValue() );
            return;
        }
        elseif( !empty($this->getValidatorRuleClasses()) )
        {
            foreach ( $this->getValidatorRuleClasses() as $validator_class )
            {
                if ( class_exists( $validator_class ) && method_exists( $validator_class, $this->field_id ) )
                {
                    $validation_instance = new $validator_class( $this->field_id, $this->getValue() );
                    $this->response = $validation_instance->getResponse();
                    return;
                }
            }
        }
        BaseLog::warning('No validation rule exists for field: ' . $this->field_id);
        $this->response = $this->failureMessage('"' . $this->field_id . '". No validation rule exists.');
    }
    public function getResponse()
    {
        return $this->response;
    } 
    public function setValidatorRuleClasses(array $classes)
    {
        $this->validator_rule_classes = $classes;
    } 
    public function getValidatorRuleClasses(): array
    {
        return $this->validator_rule_classes;
    } 
    protected function sanitiseString( $value )
    {
        $value = mb_convert_encoding($value, 'UTF-8', 'UTF-8'); 
        $value = trim($value); 
        $value = str_replace(["\r\n", "\r"], "\n", $value); 
        $value = preg_replace('/[\x00-\x08\x0B\x0C\x0E-\x1F\x7F]/u', '', $value); 
        $value = wp_strip_all_tags($value); 
        return $value;
    }
    public function failureMessage( $message = 'No message passed...' )
    {
        return '[Validation Failed] ' . $message;
    } 
}