<?php

declare(strict_types=1);

/*
 * Chill is a software for social workers
 *
 * For the full copyright and license information, please view
 * the LICENSE file that was distributed with this source code.
 */

namespace Chill\MainBundle\Doctrine\DQL;

use Doctrine\ORM\Query\AST\Functions\FunctionNode;
use Doctrine\ORM\Query\Lexer;
use Doctrine\ORM\Query\Parser;
use Doctrine\ORM\Query\SqlWalker;

class GetJsonFieldByKey extends FunctionNode
{
    private $expr1;

    private $expr2;

    public function getSql(SqlWalker $sqlWalker)
    {
        return sprintf(
            '(%s->%s)',
            $this->expr1->dispatch($sqlWalker),
            $this->expr2->dispatch($sqlWalker)
        );
    }

    public function parse(Parser $parser)
    {
        $parser->match(Lexer::T_IDENTIFIER);
        $parser->match(Lexer::T_OPEN_PARENTHESIS);
        $this->expr1 = $parser->StringPrimary();
        $parser->match(Lexer::T_COMMA);
        $this->expr2 = $parser->StringPrimary();
        $parser->match(Lexer::T_CLOSE_PARENTHESIS);
    }
}