<?php

namespace Ixrs\Catalog\Support;

class IBlock
{
    static array $operations = [
        '!><' => 'NB', //not between
        '!='  => 'NI', //not Identical
        '!%'  => 'NS', //not substring
        '><'  => 'B',  //between
        '>='  => 'GE', //greater or equal
        '<='  => 'LE', //less or equal
        '='   => 'I', //Identical
        '%'   => 'S', //substring
        '?'   => '?', //logical
        '>'   => 'G', //greater
        '<'   => 'L', //less
        '!'   => 'N', // not field LIKE val
        '*'   => 'FT', // partial full text match
        '*='  => 'FTI', // identical full text match
        '*%'  => 'FTL', // partial full text match based on LIKE
    ];

    public static function getOperationFilter($key)
    {
        $re = '/^(!><|!=|!%|><|>=|<=|=|%|\?|>|<|!|\*|\*=|\*%)?(PROPERTY_)(\d+)$/m';

        $matches = [];
        $r = preg_match($re, $key, $matches);

        if($r){
            return [
                'FIELD' => mb_strtoupper($matches[2] . $matches[3]),
                'OPERATION' => static::$operations[$matches[1]]??'',
                'PREFIX' => $matches[1],
                'ID' => $matches[3],
            ];
        }
        return [];
    }
}