improved a lot of things
This commit is contained in:
SinachPat
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export * from './schema.js';
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export * from './validator.js';
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export * from './tokens.js';
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import { z } from 'zod';
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// ── Token schemas ─────────────────────────────────────────────────────────────
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export const ColorTokenSchema = z.object({
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value: z.string().regex(/^#[0-9A-Fa-f]{3,8}$|^rgba?\(|^hsl/, 'Must be a valid CSS color'),
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/** Fluent 2 token name this maps to, e.g. "colorBrandBackground" */
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fluentToken: z.string().optional(),
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description: z.string().optional(),
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});
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export const TypographyTokenSchema = z.object({
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fontFamily: z.string().optional(),
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fontSize: z.union([z.string(), z.number()]).optional(),
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fontWeight: z.union([z.string(), z.number()]).optional(),
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lineHeight: z.union([z.string(), z.number()]).optional(),
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letterSpacing: z.union([z.string(), z.number()]).optional(),
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fluentToken: z.string().optional(),
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});
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export const SpacingTokenSchema = z.object({
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value: z.union([z.string(), z.number()]),
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fluentToken: z.string().optional(),
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});
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export const MotionTokenSchema = z.object({
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duration: z.string().optional(),
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easing: z.string().optional(),
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fluentToken: z.string().optional(),
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});
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export const TokensSchema = z.object({
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colors: z.record(ColorTokenSchema).optional(),
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typography: z.record(TypographyTokenSchema).optional(),
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spacing: z.record(SpacingTokenSchema).optional(),
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motion: z.record(MotionTokenSchema).optional(),
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});
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// ── Component rules ───────────────────────────────────────────────────────────
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export const PropRuleSchema = z.object({
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allowed: z.array(z.unknown()).optional(),
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forbidden: z.array(z.unknown()).optional(),
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required: z.boolean().optional(),
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type: z.string().optional(),
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});
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export const ComponentRuleSchema = z.object({
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/** Allowed prop values, keyed by prop name */
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props: z.record(PropRuleSchema).optional(),
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/** Fluent 2 variants that are explicitly forbidden */
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forbiddenVariants: z.array(z.string()).optional(),
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/** ARIA attributes that are required on this component */
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requiredAria: z.array(z.string()).optional(),
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notes: z.string().optional(),
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});
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// ── Screen rules ──────────────────────────────────────────────────────────────
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export const ScreenRuleSchema = z.object({
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/** Components that are allowed to appear on this screen */
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allowedComponents: z.array(z.string()).optional(),
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/** Components that must be present on this screen */
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requiredSections: z.array(z.string()).optional(),
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layout: z.string().optional(),
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notes: z.string().optional(),
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});
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// ── Voice / tone ──────────────────────────────────────────────────────────────
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export const VoiceRuleSchema = z.object({
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tone: z.string().optional(),
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maxSentenceLength: z.number().optional(),
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avoidWords: z.array(z.string()).optional(),
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preferWords: z.array(z.string()).optional(),
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examples: z.array(z.string()).optional(),
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});
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// ── Accessibility ─────────────────────────────────────────────────────────────
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export const AccessibilitySchema = z.object({
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wcagLevel: z.enum(['A', 'AA', 'AAA']).optional(),
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contrastRatio: z.number().optional(),
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customRules: z.array(z.string()).optional(),
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});
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// ── Design Language File ──────────────────────────────────────────────────────
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export const DesignLanguageFileBodySchema = z.object({
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/** Semantic version, e.g. "1.0.0" */
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version: z.string().optional(),
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/** Human-readable name, e.g. "Acme Design System" */
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name: z.string().optional(),
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tokens: TokensSchema.optional(),
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/** Per-component rules, keyed by component display name */
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components: z.record(ComponentRuleSchema).optional(),
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/** Per-screen rules, keyed by screen name or route pattern */
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screens: z.record(ScreenRuleSchema).optional(),
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voice: VoiceRuleSchema.optional(),
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accessibility: AccessibilitySchema.optional(),
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});
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export type DesignLanguageFileBody = z.infer<typeof DesignLanguageFileBodySchema>;
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export type Tokens = z.infer<typeof TokensSchema>;
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export type ComponentRule = z.infer<typeof ComponentRuleSchema>;
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export type ScreenRule = z.infer<typeof ScreenRuleSchema>;
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import type { DesignLanguageFileBody } from './schema.js';
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// ── Fluent 2 token mapping ────────────────────────────────────────────────────
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// Maps DLF token names to Fluent 2 (Griffel) CSS custom property names.
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// A token entry with a `fluentToken` field overrides the default Fluent 2 value.
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export type FluentTokenMap = Record<string, string>;
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/** Extract color token overrides from a DLF as a Fluent 2 token map. */
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export function extractColorTokens(dlf: DesignLanguageFileBody): FluentTokenMap {
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const out: FluentTokenMap = {};
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const colors = dlf.tokens?.colors ?? {};
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for (const [, token] of Object.entries(colors)) {
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if (!token) continue;
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if (token.fluentToken) {
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out[token.fluentToken] = token.value;
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}
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}
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return out;
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}
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/** Convert a Fluent 2 token map to CSS custom properties for injection. */
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export function tokensToCssVars(tokens: FluentTokenMap): string {
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const entries = Object.entries(tokens)
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.map(([name, value]) => ` --${camelToKebab(name)}: ${value};`)
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.join('\n');
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return `:root {\n${entries}\n}`;
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}
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/** Convert a DLF to a CSS var block suitable for injection into the renderer iframe. */
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export function dlfToCssVars(dlf: DesignLanguageFileBody): string {
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return tokensToCssVars(extractColorTokens(dlf));
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}
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// ── Helpers ───────────────────────────────────────────────────────────────────
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function camelToKebab(str: string): string {
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return str.replace(/([A-Z])/g, m => `-${m.toLowerCase()}`);
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}
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/** Build a short human-readable summary of the DLF's token count for logging. */
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export function dlfSummary(dlf: DesignLanguageFileBody): string {
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const tokenCounts = {
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colors: Object.keys(dlf.tokens?.colors ?? {}).length,
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typography: Object.keys(dlf.tokens?.typography ?? {}).length,
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spacing: Object.keys(dlf.tokens?.spacing ?? {}).length,
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components: Object.keys(dlf.components ?? {}).length,
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screens: Object.keys(dlf.screens ?? {}).length,
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};
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return Object.entries(tokenCounts)
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.filter(([, v]) => v > 0)
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.map(([k, v]) => `${v} ${k}`)
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.join(', ');
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}
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@@ -0,0 +1,89 @@
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import { DesignLanguageFileBodySchema, type DesignLanguageFileBody } from './schema.js';
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import type { ZodError } from 'zod';
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// ── Validation result ─────────────────────────────────────────────────────────
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export interface ValidationSuccess {
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valid: true;
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dlf: DesignLanguageFileBody;
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}
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export interface ValidationFailure {
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valid: false;
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errors: ValidationError[];
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}
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export interface ValidationError {
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path: string;
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message: string;
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}
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export type ValidationResult = ValidationSuccess | ValidationFailure;
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// ── Parse & validate ──────────────────────────────────────────────────────────
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export function validateDesignLanguageFile(input: unknown): ValidationResult {
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const result = DesignLanguageFileBodySchema.safeParse(input);
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if (result.success) {
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return { valid: true, dlf: result.data };
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}
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return { valid: false, errors: formatZodErrors(result.error) };
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}
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function formatZodErrors(error: ZodError): ValidationError[] {
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return error.errors.map(e => ({
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path: e.path.join('.') || '(root)',
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message: e.message,
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}));
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}
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// ── Runtime constraint checks ─────────────────────────────────────────────────
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// These run during visual edits and AI completions to catch violations
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// against the active DLF before they're shown to the user.
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export interface ViolationCheck {
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/** Name of the component being checked */
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componentName: string;
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/** Props being applied */
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props: Record<string, unknown>;
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/** The active DLF */
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dlf: DesignLanguageFileBody;
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}
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export interface Violation {
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prop: string;
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value: unknown;
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message: string;
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severity: 'error' | 'warning';
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}
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export function checkComponentConstraints(check: ViolationCheck): Violation[] {
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const { componentName, props, dlf } = check;
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const violations: Violation[] = [];
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const componentRule = dlf.components?.[componentName];
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if (!componentRule) return violations;
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const { props: propRules } = componentRule;
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if (!propRules) return violations;
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for (const [propKey, rule] of Object.entries(propRules)) {
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const value = props[propKey];
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// Use hasOwnProperty to distinguish "key absent" from "key set to undefined".
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// Under exactOptionalPropertyTypes these are semantically different.
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if (rule.required && !Object.prototype.hasOwnProperty.call(props, propKey)) {
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violations.push({ prop: propKey, value, message: `"${propKey}" is required by design system rules`, severity: 'error' });
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}
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if (rule.forbidden && value !== undefined && rule.forbidden.includes(value)) {
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violations.push({ prop: propKey, value, message: `"${propKey}=${String(value)}" is forbidden by design system rules`, severity: 'error' });
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}
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if (rule.allowed && value !== undefined && !rule.allowed.includes(value)) {
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violations.push({ prop: propKey, value, message: `"${propKey}=${String(value)}" is not in the allowed values list`, severity: 'warning' });
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}
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}
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return violations;
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}
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