/**
 * cli:validate-page — validate.ts
 *
 * Read-only Zod validation of CLI input. Disk reads happen in execute.ts.
 */
import {
  ValidatePageInputSchema,
  type ValidationResult,
} from './types.js'

export function validate(raw: unknown): ValidationResult {
  const result = ValidatePageInputSchema.safeParse(raw)
  if (!result.success) {
    return {
      valid: false,
      errors: result.error.issues.map((i) => `[${i.path.join('.')}] ${i.message}`),
      warnings: [],
    }
  }
  if (!result.data.pageFile.endsWith('.tsx')) {
    return {
      valid: false,
      errors: [`pageFile must end in .tsx (got: ${result.data.pageFile})`],
      warnings: [],
    }
  }
  return { valid: true, errors: [], warnings: [], spec: result.data }
}