<?php

namespace DigiComp\PhpCodesniffer\DigiComp\Sniffs\Commenting;

use DigiComp\PhpCodesniffer\DigiComp\Sniffs\MemberVarUtility;
use PHP_CodeSniffer\Files\File;

class VariableCommentSniff extends \PHP_CodeSniffer\Standards\Squiz\Sniffs\Commenting\VariableCommentSniff
{
    public function processMemberVar(File $phpcsFile, $stackPtr)
    {
        $tokens = $phpcsFile->getTokens();
        $ignore = [
            \T_PUBLIC => \T_PUBLIC,
            \T_PRIVATE => \T_PRIVATE,
            \T_PROTECTED => \T_PROTECTED,
            \T_VAR => \T_VAR,
            \T_NULL => \T_NULL,
            \T_STATIC => \T_STATIC,
            \T_TYPE_UNION => \T_TYPE_UNION,
            \T_WHITESPACE => \T_WHITESPACE,
            \T_STRING => \T_STRING,
            \T_NS_SEPARATOR => \T_NS_SEPARATOR,
            \T_NULLABLE => \T_NULLABLE,
        ];

        $commentEnd = MemberVarUtility::findCommentEndWithoutAttributes($tokens, $ignore, $stackPtr);
        // this error is copied from above, as it comes with a needed early return
        if (
            $commentEnd === false
            || ($tokens[$commentEnd]['code'] !== \T_DOC_COMMENT_CLOSE_TAG
                && $tokens[$commentEnd]['code'] !== \T_COMMENT)
        ) {
            $phpcsFile->addError('Missing member variable doc comment', $stackPtr, 'Missing');
            return;
        }
        $commentStart = $tokens[$commentEnd]['comment_opener'];

        $foundVar = null;
        foreach ($tokens[$commentStart]['comment_tags'] as $tag) {
            if (
                $tokens[$tag]['content'] === '@var'
                || $tokens[$tag]['content'] === '@inheritDoc'
            ) {
                $foundVar = $tag;
            }
        }

        // The @var tag is the only one we require.
        if ($foundVar === null) {
            $error = 'Missing @var or @inheritDoc tag in member variable comment';
            $phpcsFile->addWarning($error, $commentEnd, 'MissingVarOrInheritDoc');
            return;
        }
        // remove the error reporting from base class, as it does not accept union types
        // https://github.com/squizlabs/PHP_CodeSniffer/pull/3757
        $oldSeverity = $phpcsFile->ruleset->ruleset['DigiComp.Commenting.VariableComment.Missing']['severity'] ?? null;
        $phpcsFile->ruleset->ruleset['DigiComp.Commenting.VariableComment.Missing']['severity'] = 0;
        parent::processMemberVar($phpcsFile, $stackPtr);
        if ($oldSeverity !== null) {
            $phpcsFile->ruleset->ruleset['DigiComp.Commenting.VariableComment.Missing']['severity'] = $oldSeverity;
        } else {
            unset($phpcsFile->ruleset->ruleset['DigiComp.Commenting.VariableComment.Missing']['severity']);
        }
    }
}