Backend:
- GET /api/reports/discounts: read-only audit of all OrderDiscount records
Filters: ?from=&to= or ?business_day_id=, ?applied_by=
Returns:
- discounts[]: id, order_id, table_name, applied_by_name, applied_at, discount_type,
discount_value, discount_amount (computed euro value), order_total_before,
item_id (null = whole-order), reason
- total_discount_value: sum of all euro discount amounts
- order_count: unique orders that received a discount
- by_waiter[]: grouped summary (waiter_name, count, total_value)
discount_amount computation: fixed → discount_value directly;
percent → computed from order or item total at query time
Frontend:
- DiscountsLog.jsx: read-only report under Reports → Λειτουργίες → Εκπτώσεις
- Filter bar: range/workday toggle, date range, waiter filter
- 3 stat cards: total discount value, orders with discounts, count of entries
- By-waiter summary table (hidden when only one waiter)
- Full audit table: date, order + table, waiter, type badge (% blue / € amber),
order total before, euro amount discounted in amber, reason
- Totals footer row
- No create/edit/delete — pure audit log
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
bonamin
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