import { z } from 'zod';

/**
 * Cloud-generated insights synced to device (strategy P3: Insight sync).
 * Example: "Your margin on biscuits dropped 8% this week. Consider switching to Supplier B."
 */

export const insightTypeEnum = z.enum([
  'margin_alert',
  'restock_suggestion',
  'weekly_summary',
  'supplier_tip',
  'expiry_alert',
  'anomaly',
  'bestseller_shift',
  'custom',
]);

export const insightEngagementTypeEnum = z.enum(['acted_on', 'dismissed', 'ignored']);

export const shopInsightSchema = z.object({
  id: z.string().uuid(),
  type: insightTypeEnum,
  title: z.string(),
  body: z.string(),
  payload: z.record(z.unknown()).nullable(),
  readAt: z.coerce.date().nullable(),
  engagementType: insightEngagementTypeEnum.nullable(),
  engagedAt: z.coerce.date().nullable(),
  createdAt: z.coerce.date(),
});

export type ShopInsight = z.infer<typeof shopInsightSchema>;