First cut

shared/src/repo-validation.ts

@@ -0,0 +1,42 @@
+import { z } from 'zod';
+import {
+  siteContextSchema,
+  sectionFileSchema,
+  eventsFileSchema,
+  smsSitesConfigSchema,
+} from './schemas/index.js';
+
+const EDITABLE_PATTERNS: Array<{ pattern: RegExp; schema: z.ZodTypeAny }> = [
+  { pattern: /^content\/sections\/[^/]+\.json$/, schema: sectionFileSchema },
+  { pattern: /^content\/events\.json$/, schema: eventsFileSchema },
+  { pattern: /^site-context\.json$/, schema: siteContextSchema },
+  { pattern: /^config\/sms-sites\.json$/, schema: smsSitesConfigSchema },
+];
+
+export function schemaForRepoRelativePath(relativePath: string): z.ZodTypeAny | null {
+  for (const { pattern, schema } of EDITABLE_PATTERNS) {
+    if (pattern.test(relativePath)) return schema;
+  }
+  return null;
+}
+
+export function isEditableContentRepoPath(relativePath: string): boolean {
+  return EDITABLE_PATTERNS.some(({ pattern }) => pattern.test(relativePath));
+}
+
+export function parseAndValidateRepoJson(
+  repoRelativePath: string,
+  rawText: string
+): { success: true; data: unknown } | { success: false; error: string } {
+  const schema = schemaForRepoRelativePath(repoRelativePath);
+  if (!schema) return { success: false, error: `No schema found for path: ${repoRelativePath}` };
+
+  try {
+    const parsed = JSON.parse(rawText);
+    const result = schema.safeParse(parsed);
+    if (result.success) return { success: true, data: result.data };
+    return { success: false, error: result.error.issues.map(i => `${i.path.join('.')}: ${i.message}`).join('; ') };
+  } catch (e) {
+    return { success: false, error: `Invalid JSON: ${(e as Error).message}` };
+  }
+}