alex-5zi/hexlet-psr-linter

<?php

namespace hexletPsrLinter\Linter\Rules;

use PhpParser\Node;
use PhpParser\Node\Stmt;
use PhpParser\NodeVisitorAbstract;
use hexletPsrLinter\Reporter\Reporter;

//use Psr\Log\LoggerInterface;

class SideEffectsRule implements RuleInterface
{
    private $reporter;

    private $flagDeclaration;
    private $flagSideEffect;
    private $endLine;
    private $path;

    public function __construct()
    {
        $this->reporter = Reporter::getReporter();
    }

    public function beforeCheck(array $nodes)
    {
        $this->flagDeclaration = false;
        $this->flagDeclaration = false;
        $this->endLine = 0;
    }

    public function check(Node $node)
    {
        switch ($node->getType()) {
            case "Stmt_Function":
            case "Stmt_Class":
                if ($this->endLine < $node->getAttribute('endLine')) {
                    $this->flagDeclaration = true;
                    $this->endLine = $node->getAttribute('endLine');
                }
                break;
            case "Expr_FuncCall":
            case "Expr_Include":
            case "Stmt_Echo":
                if ($this->endLine < $node->getAttribute('endLine')) {
                    $this->flagSideEffect = true;
                    $this->endLine = $node->getAttribute('endLine');
                }
                break;
        }
        return;
    }

    public function afterCheck(array $nodes)
    {
        if ($this->flagSideEffect && $this->flagDeclaration) {
            $this->reporter->warning(
                'A file SHOULD declare new symbols
                                (classes, functions, constants, etc.)
                                and cause no other side effects, or
                                it SHOULD execute logic with
                                side effects, but SHOULD NOT do both.',
                ['path' => $this->path]
            );
        }
    }

    public function setPath($path)
    {
        $this->path = $path;
    }

    public function autofix(Node $node)
    {
        return;
    }
}