docs: enterprise refactor plan with ralph specs

dist/plugins/collectors/AccessibilityCollector.js

@@ -0,0 +1,124 @@
+"use strict";
+/**
+ * AccessibilityCollector — runs axe-core after state changes to detect WCAG violations.
+ * Converts axe violations to IAnomaly with severity mapped from impact level.
+ */
+var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    var desc = Object.getOwnPropertyDescriptor(m, k);
+    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
+      desc = { enumerable: true, get: function() { return m[k]; } };
+    }
+    Object.defineProperty(o, k2, desc);
+}) : (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    o[k2] = m[k];
+}));
+var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
+    Object.defineProperty(o, "default", { enumerable: true, value: v });
+}) : function(o, v) {
+    o["default"] = v;
+});
+var __importStar = (this && this.__importStar) || (function () {
+    var ownKeys = function(o) {
+        ownKeys = Object.getOwnPropertyNames || function (o) {
+            var ar = [];
+            for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
+            return ar;
+        };
+        return ownKeys(o);
+    };
+    return function (mod) {
+        if (mod && mod.__esModule) return mod;
+        var result = {};
+        if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
+        __setModuleDefault(result, mod);
+        return result;
+    };
+})();
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.AccessibilityCollector = exports.DEFAULT_A11Y_CONFIG = void 0;
+const crypto = __importStar(require("crypto"));
+exports.DEFAULT_A11Y_CONFIG = {
+    enabled: true,
+    minImpact: 'serious',
+    wcagLevel: 'AA',
+};
+const IMPACT_TO_SEVERITY = {
+    minor: 'low',
+    moderate: 'medium',
+    serious: 'high',
+    critical: 'critical',
+};
+const IMPACT_RANK = {
+    minor: 0,
+    moderate: 1,
+    serious: 2,
+    critical: 3,
+};
+class AccessibilityCollector {
+    constructor(config = {}) {
+        this.config = { ...exports.DEFAULT_A11Y_CONFIG, ...config };
+    }
+    async collect(page, stateId, sessionId, actionTrace) {
+        if (!this.config.enabled)
+            return [];
+        try {
+            const violations = await this.runAxe(page);
+            const minRank = IMPACT_RANK[this.config.minImpact] ?? 2;
+            const anomalies = [];
+            for (const violation of violations) {
+                const impact = violation.impact ?? 'minor';
+                if ((IMPACT_RANK[impact] ?? 0) < minRank)
+                    continue;
+                const severity = IMPACT_TO_SEVERITY[impact] ?? 'medium';
+                anomalies.push({
+                    id: crypto.randomUUID(),
+                    type: 'accessibility_violation',
+                    severity,
+                    observationId: stateId,
+                    actionTrace,
+                    description: `[axe] ${violation.description}`,
+                    evidence: {
+                        rawErrors: [
+                            `Rule: ${violation.id}`,
+                            `Impact: ${impact}`,
+                            `Affected nodes: ${violation.nodes.length}`,
+                            `Help: ${violation.helpUrl}`,
+                        ],
+                    },
+                    timestamp: Date.now(),
+                });
+            }
+            return anomalies;
+        }
+        catch {
+            // axe might fail if page is not in a valid state
+            return [];
+        }
+    }
+    async runAxe(page) {
+        try {
+            const { AxeBuilder } = await Promise.resolve().then(() => __importStar(require('@axe-core/playwright')));
+            const results = await new AxeBuilder({ page })
+                .withTags(['wcag2a', 'wcag2aa'])
+                .analyze();
+            return results.violations;
+        }
+        catch {
+            // Fallback: try via page.evaluate if AxeBuilder fails
+            const results = await page.evaluate(async () => {
+                // eslint-disable-next-line @typescript-eslint/no-explicit-any
+                const win = window;
+                if (typeof win.axe === 'undefined')
+                    return [];
+                // eslint-disable-next-line @typescript-eslint/no-unsafe-call
+                const r = await win.axe.run();
+                // eslint-disable-next-line @typescript-eslint/no-unsafe-return
+                return r.violations;
+            }).catch(() => []);
+            return Array.isArray(results) ? results : [];
+        }
+    }
+}
+exports.AccessibilityCollector = AccessibilityCollector;