release: v3.1.0 premium smart core engines and 14 new accessibility rules

src/Core/Baseline/FuzzyBaselineMatcher.php

@@ -0,0 +1,66 @@
+<?php
+
+namespace YakNet\AccessibilityConsole\Core\Baseline;
+
+class FuzzyBaselineMatcher
+{
+    /**
+     * Determine if two HTML snippets are fuzzy matched.
+     *
+     * @param string $snippetA
+     * @param string $snippetB
+     * @return bool
+     */
+    public static function match(string $snippetA, string $snippetB): bool
+    {
+        $normA = self::normalize($snippetA);
+        $normB = self::normalize($snippetB);
+
+        if ($normA === '' || $normB === '') {
+            return false;
+        }
+
+        return $normA === $normB;
+    }
+
+    /**
+     * Normalize HTML snippet by stripping formatting, converting to lowercase,
+     * and sorting attributes.
+     *
+     * @param string $html
+     * @return string
+     */
+    public static function normalize(string $html): string
+    {
+        $html = trim($html);
+        if ($html === '') {
+            return '';
+        }
+
+        // Parse using simple regex to sort attributes and lowercase tag
+        if (preg_match('/^<([a-zA-Z0-9:-]+)(.*?)>$/s', $html, $matches)) {
+            $tag = strtolower($matches[1]);
+            $attrsContent = $matches[2];
+
+            // Parse attributes
+            preg_match_all('/([a-zA-Z0-9:-]+)=["\'](.*?)["\']/s', $attrsContent, $attrMatches, PREG_SET_ORDER);
+            
+            $attrs = [];
+            foreach ($attrMatches as $match) {
+                $attrs[strtolower($match[1])] = trim($match[2]);
+            }
+            ksort($attrs);
+
+            $attrStr = '';
+            foreach ($attrs as $name => $value) {
+                $attrStr .= sprintf(' %s="%s"', $name, $value);
+            }
+
+            return sprintf('<%s%s>', $tag, $attrStr);
+        }
+
+        // Fallback: Strip all whitespace and lowercase
+        $cleaned = preg_replace('/\s+/', '', $html) ?: '';
+        return strtolower($cleaned);
+    }
+}

src/Core/BaselineManager.php

@@ -82,9 +82,9 @@ class BaselineManager
 
     private function calculateKey(string $file, string $ruleId, string $htmlSnippet): string
     {
-        // Normalize whitespaces and trim to prevent minor formatting updates from breaking baseline
-        $normalizedSnippet = preg_replace('/\s+/', ' ', trim($htmlSnippet));
-        if ($normalizedSnippet === null) {
+        // Normalize snippet using fuzzy baseline matcher
+        $normalizedSnippet = \YakNet\AccessibilityConsole\Core\Baseline\FuzzyBaselineMatcher::normalize($htmlSnippet);
+        if ($normalizedSnippet === '') {
             $normalizedSnippet = trim($htmlSnippet);
         }
 

src/Core/Config/SmartPresetBuilder.php

@@ -0,0 +1,44 @@
+<?php
+
+namespace YakNet\AccessibilityConsole\Core\Config;
+
+class SmartPresetBuilder
+{
+    /**
+     * Analyze HTML content features to suggest rules presets.
+     *
+     * @param string $html
+     * @return array{suggestedLevel: int, tagsCheckedCount: array<string, int>, recommendedExclusions: string[]}
+     */
+    public function analyze(string $html): array
+    {
+        $tagsChecked = ['img' => 0, 'form' => 0, 'table' => 0, 'svg' => 0, 'video' => 0];
+
+        foreach (array_keys($tagsChecked) as $tag) {
+            $tagsChecked[$tag] = substr_count(strtolower($html), '<' . $tag);
+        }
+
+        // Calculate recommendations
+        $suggestedLevel = 3; // Standard baseline
+        if ($tagsChecked['form'] > 5 || $tagsChecked['table'] > 3) {
+            $suggestedLevel = 4; // Higher complexity requires more strict tests
+        }
+        if ($tagsChecked['video'] > 0) {
+            $suggestedLevel = 5; // Video elements need caption checks, standard level 5
+        }
+
+        $exclusions = [];
+        if ($tagsChecked['svg'] === 0) {
+            $exclusions[] = 'WCAG_1_1_1_SVG';
+        }
+        if ($tagsChecked['video'] === 0) {
+            $exclusions[] = 'WCAG_1_2_2_VIDEO_TRACK';
+        }
+
+        return [
+            'suggestedLevel' => $suggestedLevel,
+            'tagsCheckedCount' => $tagsChecked,
+            'recommendedExclusions' => $exclusions,
+        ];
+    }
+}

src/Core/Container/ContainerFactory.php

@@ -0,0 +1,58 @@
+<?php
+
+namespace YakNet\AccessibilityConsole\Core\Container;
+
+use DI\ContainerBuilder;
+use Psr\Container\ContainerInterface;
+use YakNet\AccessibilityConsole\Core\Config;
+use YakNet\AccessibilityConsole\Core\Analyser;
+use YakNet\AccessibilityConsole\Core\Scanner;
+use YakNet\AccessibilityConsole\Console\Command\ScanCommand;
+use YakNet\AccessibilityConsole\Console\Command\FixCommand;
+use YakNet\AccessibilityConsole\Console\Command\InitCommand;
+use YakNet\AccessibilityConsole\Console\Command\RulesCommand;
+
+class ContainerFactory
+{
+    /**
+     * Create and configure the PHP-DI container.
+     *
+     * @return ContainerInterface
+     */
+    public static function create(): ContainerInterface
+    {
+        $builder = new ContainerBuilder();
+
+        $builder->addDefinitions([
+            Config::class => function () {
+                $configPath = getcwd() . '/a11y.yaml';
+                return Config::fromYaml($configPath);
+            },
+            Scanner::class => function () {
+                return new Scanner();
+            },
+            Analyser::class => function (ContainerInterface $c) {
+                $config = $c->get(Config::class);
+                $scanner = $c->get(Scanner::class);
+                return new Analyser(
+                    $config instanceof Config ? $config : null,
+                    $scanner instanceof Scanner ? $scanner : null
+                );
+            },
+            ScanCommand::class => function () {
+                return new ScanCommand();
+            },
+            FixCommand::class => function () {
+                return new FixCommand();
+            },
+            InitCommand::class => function () {
+                return new InitCommand();
+            },
+            RulesCommand::class => function () {
+                return new RulesCommand();
+            },
+        ]);
+
+        return $builder->build();
+    }
+}

src/Core/Diff/VisualDiffGenerator.php

@@ -0,0 +1,46 @@
+<?php
+
+namespace YakNet\AccessibilityConsole\Core\Diff;
+
+use SebastianBergmann\Diff\Differ;
+use SebastianBergmann\Diff\Output\UnifiedDiffOutputBuilder;
+
+class VisualDiffGenerator
+{
+    private Differ $differ;
+
+    public function __construct()
+    {
+        $this->differ = new Differ(new UnifiedDiffOutputBuilder("--- Original\n+++ Healed\n"));
+    }
+
+    /**
+     * Generate a colorized git-style unified diff string.
+     *
+     * @param string $original
+     * @param string $fixed
+     * @return string
+     */
+    public function generate(string $original, string $fixed): string
+    {
+        $diff = $this->differ->diff($original, $fixed);
+        $lines = explode("\n", $diff);
+        
+        $colorized = [];
+        foreach ($lines as $line) {
+            if (str_starts_with($line, '+') && !str_starts_with($line, '+++')) {
+                $colorized[] = "<fg=green>" . htmlspecialchars($line) . "</>";
+            } elseif (str_starts_with($line, '-') && !str_starts_with($line, '---')) {
+                $colorized[] = "<fg=red>" . htmlspecialchars($line) . "</>";
+            } elseif (str_starts_with($line, '@@')) {
+                $colorized[] = "<fg=cyan>" . htmlspecialchars($line) . "</>";
+            } elseif (str_starts_with($line, '---') || str_starts_with($line, '+++')) {
+                $colorized[] = "<fg=gray>" . htmlspecialchars($line) . "</>";
+            } else {
+                $colorized[] = htmlspecialchars($line);
+            }
+        }
+
+        return implode("\n", $colorized);
+    }
+}

src/Core/Metrics/AccessibilityScoreCalculator.php

@@ -0,0 +1,95 @@
+<?php
+
+namespace YakNet\AccessibilityConsole\Core\Metrics;
+
+use YakNet\AccessibilityConsole\Core\Violation;
+use YakNet\AccessibilityConsole\Core\Severity;
+
+class AccessibilityScoreCalculator
+{
+    /**
+     * Calculate accessibility score (0-100) and user impact summaries.
+     *
+     * @param Violation[] $violations
+     * @return array{score: int, visualImpact: int, motorImpact: int, cognitiveImpact: int}
+     */
+    public static function calculate(array $violations): array
+    {
+        $score = 100;
+        
+        $visualCount = 0;
+        $motorCount = 0;
+        $cognitiveCount = 0;
+
+        foreach ($violations as $v) {
+            // Deduct points based on severity
+            $deduction = 3; // Warning default
+            if ($v->severity === Severity::CRITICAL) {
+                $deduction = 15;
+            } elseif ($v->severity === Severity::ERROR) {
+                $deduction = 8;
+            }
+            $score -= $deduction;
+
+            // Map rule ID to disabled user groups impact
+            $id = $v->ruleId;
+            if (self::isVisual($id)) {
+                $visualCount++;
+            }
+            if (self::isMotor($id)) {
+                $motorCount++;
+            }
+            if (self::isCognitive($id)) {
+                $cognitiveCount++;
+            }
+        }
+
+        $score = max(0, $score);
+
+        // Normalize counts to percentage indicators of severity
+        $total = count($violations);
+        $visualImpact = $total > 0 ? (int)(($visualCount / $total) * 100) : 0;
+        $motorImpact = $total > 0 ? (int)(($motorCount / $total) * 100) : 0;
+        $cognitiveImpact = $total > 0 ? (int)(($cognitiveCount / $total) * 100) : 0;
+
+        return [
+            'score' => $score,
+            'visualImpact' => $visualImpact,
+            'motorImpact' => $motorImpact,
+            'cognitiveImpact' => $cognitiveImpact,
+        ];
+    }
+
+    private static function isVisual(string $ruleId): bool
+    {
+        $visualKeywords = ['ALT', 'LABEL', 'TITLE', 'ARIA', 'LANG', 'CONTRAST', 'COLOR', 'TEXT', 'HEADING'];
+        foreach ($visualKeywords as $key) {
+            if (str_contains($ruleId, $key)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    private static function isMotor(string $ruleId): bool
+    {
+        $motorKeywords = ['ACCESSKEY', 'FOCUS', 'TABINDEX', 'KEYBOARD', 'LINK_JAVASCRIPT', 'AUTOFOCUS', 'SCROLLABLE'];
+        foreach ($motorKeywords as $key) {
+            if (str_contains($ruleId, $key)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    private static function isCognitive(string $ruleId): bool
+    {
+        $cognitiveKeywords = ['MARQUEE', 'BLINK', 'REFRESH', 'AUTOPLAY', 'AUTOCOMPLETE'];
+        foreach ($cognitiveKeywords as $key) {
+            if (str_contains($ruleId, $key)) {
+                return true;
+            }
+        }
+        return false;
+    }
+}

src/Core/SelfHealing/LocalHealer.php

@@ -0,0 +1,65 @@
+<?php
+
+namespace YakNet\AccessibilityConsole\Core\SelfHealing;
+
+use YakNet\AccessibilityConsole\Core\Violation;
+
+class LocalHealer
+{
+    /**
+     * Attempt to deterministically fix simple violations locally.
+     *
+     * @param Violation $violation
+     * @return string|null
+     */
+    public function heal(Violation $violation): ?string
+    {
+        $snippet = $violation->htmlSnippet;
+        $ruleId = $violation->ruleId;
+
+        switch ($ruleId) {
+            case 'WCAG_2_2_2_BLINK':
+                $fixed = str_replace(
+                    ['<blink>', '</blink>', '<BLINK>', '</BLINK>'],
+                    ['<span style="text-decoration: blink;">', '</span>', '<span style="text-decoration: blink;">', '</span>'],
+                    $snippet
+                );
+                return "EXPLANATION: Banned <blink> tag replaced with a span and text-decoration style.\nFIX: " . $fixed;
+
+            case 'WCAG_2_4_3_AUTOFOCUS':
+                $fixed = preg_replace('/\s+autofocus(=["\'](.*?)["\'])?/i', '', $snippet) ?: $snippet;
+                return "EXPLANATION: Autofocus attribute removed to prevent screen reader interruption on load.\nFIX: " . $fixed;
+
+            case 'WCAG_1_3_1_TABLE_SUMMARY':
+                $fixed = preg_replace('/\s+summary=["\'](.*?)["\']/i', '', $snippet) ?: $snippet;
+                return "EXPLANATION: Deprecated table summary attribute removed. Use caption elements instead.\nFIX: " . $fixed;
+
+            case 'WCAG_2_1_1_SCROLLABLE_FOCUS':
+                if (!str_contains($snippet, 'tabindex')) {
+                    $fixed = preg_replace('/(style=["\'](.*?)["\'])/i', '$1 tabindex="0"', $snippet) ?: $snippet;
+                    return "EXPLANATION: Added tabindex=\"0\" to scrollable region to allow keyboard scrolling.\nFIX: " . $fixed;
+                }
+                break;
+
+            case 'WCAG_1_3_1_PRESENTATION_TAGS':
+                if (preg_match('/<center>(.*?)<\/center>/is', $snippet, $matches)) {
+                    $fixed = '<div style="text-align: center;">' . $matches[1] . '</div>';
+                    return "EXPLANATION: Center element replaced with div and text-align CSS.\nFIX: " . $fixed;
+                }
+                if (preg_match('/<strike>(.*?)<\/strike>/is', $snippet, $matches)) {
+                    $fixed = '<span style="text-decoration: line-through;">' . $matches[1] . '</span>';
+                    return "EXPLANATION: Strike element replaced with span and line-through decoration CSS.\nFIX: " . $fixed;
+                }
+                break;
+
+            case 'WCAG_3_1_1_LANG':
+                if (preg_match('/<html(\s+[^>]*>|>)/i', $snippet)) {
+                    $fixed = preg_replace('/<html/i', '<html lang="en"', $snippet) ?: $snippet;
+                    return "EXPLANATION: Injected default lang=\"en\" to HTML element.\nFIX: " . $fixed;
+                }
+                break;
+        }
+
+        return null;
+    }
+}