feat: add printer types

fix(orders): keep the customer a new order is created for
CreateOrderContractToModel never copied customer_id, so every order from POST /orders was saved without a customer. Paying it then earned no EnakPoint or EnakCoin (skipped as NO_CUSTOMER, which is not logged). The customer must now belong to the order's organization, as SetOrderCustomer already requires: it is who earns once the order is paid, and orders.customer_id has no foreign key. A nil UUID means no customer. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-01 22:26:44 +07:00 · 2026-09-30 23:29:17 +07:00 · 2026-09-30 23:00:14 +07:00 · 2026-09-30 17:39:27 +02:00 · 2026-09-30 17:37:40 +02:00
30 changed files with 2089 additions and 70 deletions
@@ -0,0 +1,143 @@
+# Migrasi printer_type ke printer_types
+
+1 Oktober 2026
+
+## Ringkasan
+
+`printer_type` (string) dihapus dan diganti `printer_types` (array string), sehingga satu produk bisa dicetak ke lebih dari satu printer. Contohnya "Paket Makan Minum" dengan `["kitchen", "bar"]` tercetak di kitchen dan bar sekaligus.
+
+Ini breaking change. Setelah backend baru dirilis, client yang masih membaca `printer_type` tidak menerima printer apa pun. Karena itu app POS dan dashboard harus diupdate lebih dulu, lihat [Urutan rilis](#database-dan-urutan-rilis).
+
+Yang perlu bertindak:
+
+- **App POS**: baca `printer_types` dan cetak tiap item ke semua printer di dalamnya.
+- **Dashboard admin**: ganti pilihan printer di form produk jadi multi-select yang mengirim `printer_types`.
+
+## Perubahan response
+
+`printer_type` hilang dari semua response dan digantikan `printer_types`, yang nilainya selalu array dan tidak pernah `null`.
+
+| Endpoint | Letak field |
+| --- | --- |
+| `POST /api/v1/products`, `PUT /api/v1/products/:id`, `GET /api/v1/products`, `GET /api/v1/products/all`, `GET /api/v1/products/:id` | objek produk |
+| `POST /api/v1/orders`, `GET /api/v1/orders`, `GET /api/v1/orders/:id`, `PUT /api/v1/orders/:id` | `order_items[]` |
+| `POST /api/v1/orders/:id/add-items` | `added_items[]` dan `updated_order.order_items[]` |
+| `POST /api/v1/self-order/orders`, `GET /api/v1/self-order/orders/:session_id` | `order_items[]` |
+| `/api/v1/product-recipes` (semua yang mengembalikan recipe) | `product` |
+| `/api/v1/inventory` | `product`, selalu `[]` karena produk di sini hanya berisi id dan nama |
+
+Contoh satu item di `order_items[]`:
+
+```json
+{
+  "product_name": "Paket Makan Minum",
+  "printer_types": ["kitchen", "bar"],
+  "print_to_checker": true
+}
+```
+
+Aturan nilainya:
+
+- `printer_types: []` artinya produk tidak dicetak ke printer mana pun.
+- Urutan printer sesuai yang disimpan admin, tanpa duplikat.
+- Void, refund, payment, split bill, dan set customer tidak membawa data printer, sama seperti sebelumnya.
+
+## Perubahan request produk
+
+`POST /api/v1/products` dan `PUT /api/v1/products/:id` menerima `printer_types` sebagai pengganti `printer_type`. Kalau `printer_type` masih dikirim, field itu diabaikan tanpa error.
+
+```json
+{
+  "name": "Paket Makan Minum",
+  "category_id": "<uuid>",
+  "price": 25000,
+  "printer_types": ["kitchen", "bar"]
+}
+```
+
+| Request | `printer_types` yang dikirim | Hasil |
+| --- | --- | --- |
+| Create | tidak dikirim | `["kitchen"]` |
+| Create | `["kitchen", "bar"]` | `["kitchen", "bar"]` |
+| Create | `[]` atau hanya string kosong | `["kitchen"]` |
+| Update | tidak dikirim | tidak berubah |
+| Update | `["bar"]` | `["bar"]`, seluruh daftar diganti |
+| Update | `[]` | `[]`, produk tidak dicetak ke mana pun |
+
+Sebelum disimpan, spasi di awal dan akhir tiap entri dibuang, lalu entri kosong dan duplikat dihapus. Urutan dipertahankan.
+
+Tiap entri maksimal 50 karakter. Kalau lebih, request ditolak dengan error code `310` dan pesan `each printer_types entry cannot exceed 50 characters`.
+
+## Migrasi app POS
+
+App POS harus mengirim tiap item ke semua printer di `printer_types`, sehingga satu item bisa muncul di lebih dari satu tiket.
+
+1. Ganti `printer_type` dengan `printer_types` (list string) di model order item dan produk.
+2. Selama backend lama masih jalan, `printer_types` belum ada di response. Pakai `[printer_type]` kalau `printer_types` tidak ada, supaya app baru bisa dirilis sebelum backend.
+3. Saat mencetak, kelompokkan item per printer dengan mengulang setiap entri `printer_types` milik item.
+4. Item dengan `printer_types: []` tidak dicetak ke printer station mana pun.
+5. `print_to_checker` tidak berubah dan tetap diperlakukan terpisah.
+6. Untuk tambahan pesanan dari `POST /api/v1/orders/:id/add-items`, cetak dari `added_items[]`.
+
+```text
+tiket = {}
+untuk setiap item di order_items:
+    printers = item.printer_types ?? [item.printer_type]   // fallback hanya untuk backend lama
+    untuk setiap printer di printers:
+        tiket[printer].tambah(item)
+untuk setiap (printer, items) di tiket:
+    cetak items ke printer
+```
+
+Perbaikan di `added_items[]`: sebelumnya field ini selalu berisi `product_name` dan printer kosong, serta `print_to_checker: true`. Sekarang isinya lengkap seperti item di `updated_order.order_items[]`, dengan urutan sesuai request. Kalau app selama ini mengakali dengan mencari item baru di `updated_order`, cara itu bisa diganti dengan `added_items[]` langsung.
+
+## Migrasi dashboard
+
+Form produk di dashboard harus memakai multi-select printer dan selalu mengirim daftar lengkapnya lewat `printer_types`.
+
+1. Ganti dropdown printer tunggal dengan multi-select, misalnya checkbox, berisi pilihan printer yang sama.
+2. Saat membuka form edit, isi pilihan dari `printer_types`. Selama backend lama masih jalan, pakai `[printer_type]` kalau `printer_types` tidak ada.
+3. Saat menyimpan, kirim `printer_types` berisi semua printer yang dipilih.
+4. Selama backend lama masih jalan, kirim juga `printer_type` berisi printer pertama. Backend lama hanya membaca `printer_type`, dan backend baru mengabaikannya.
+5. Di daftar produk, tampilkan semua printer dari `printer_types`.
+
+Backend tidak membatasi nilai printer. Nilainya harus sama persis dengan nama printer yang dikenal app POS, termasuk huruf besar dan kecilnya.
+
+Create dengan `printer_types: []` tetap menghasilkan `["kitchen"]`. Produk tanpa printer dibuat dulu, lalu di-update dengan `printer_types: []`.
+
+## Database dan urutan rilis
+
+Migration `000099_add_printer_types_to_products` menambah kolom `products.printer_types` (JSONB, `NOT NULL`, default `["kitchen"]`), mengisinya dari `printer_type`, lalu menghapus kolom `printer_type` beserta index-nya.
+
+- Produk dengan `printer_type` berisi nilai menjadi `[printer_type]`.
+- Produk dengan `printer_type` `NULL` atau kosong menjadi `[]`.
+
+Urutan rilis:
+
+1. Rilis app POS baru, yang membaca `printer_types` dengan fallback ke `printer_type`, ke semua outlet.
+2. Rilis dashboard baru, yang mengirim `printer_types` dan `printer_type`.
+3. Jalankan migration `000099` tepat sebelum deploy backend baru. Di antara keduanya, backend lama gagal menyimpan produk karena kolom `printer_type` sudah tidak ada.
+4. Setelah backend baru jalan, dashboard boleh berhenti mengirim `printer_type`, dan fallback di app POS boleh dihapus.
+5. Atur produk multi-printer, misalnya "Paket Makan Minum" ke `["kitchen", "bar"]`.
+
+Outlet yang masih memakai app POS lama setelah langkah 3 tidak menerima printer untuk semua item. Pastikan langkah 1 sudah selesai di semua outlet.
+
+Rollback: jalankan down migration dan deploy backend lama bersamaan. Down migration membuat ulang kolom `printer_type` berisi printer pertama, lalu menghapus `printer_types`, jadi yang hilang hanya printer tambahan.
+
+## Checklist
+
+- [ ] App POS baru (dengan fallback) terpasang di semua outlet
+- [ ] Dashboard baru mengirim `printer_types` dan `printer_type`
+- [ ] Migration `000099` dan backend baru dirilis di staging
+- [ ] Uji "Paket Makan Minum" dengan `["kitchen", "bar"]` tercetak di dua printer, saat order baru dan saat tambah pesanan
+- [ ] Migration `000099` dan backend baru dirilis di production
+- [ ] Dashboard berhenti mengirim `printer_type`
+- [ ] Fallback `printer_type` di app POS dihapus
+
+## FAQ
+
+**Kenapa `printer_type` dihapus, bukan dipertahankan?** Supaya hanya ada satu sumber data printer. Dua field yang menyimpan hal yang sama bisa saling berbeda.
+
+**Apakah kitchen dan bar menerima tiket yang sama?** Ya. Keduanya mencetak "Paket Makan Minum" lengkap dengan varian dan modifier-nya. Memecah isi paket per station butuh fitur bundle, yang di luar rilis ini.
+
+**Apakah nilai printer dibatasi?** Tidak. Nilainya string bebas sampai 50 karakter, dan harus sama dengan nama printer di app POS.
@@ -0,0 +1,438 @@
+# Task Breakdown: EnakPoint & EnakCoin
+
+**Sumber:** [PRD EnakPoint & EnakCoin](prd-point-coin.md)
+**Tanggal:** 2026-09-29
+
+Setiap task menyebut bagian PRD yang dikerjakan, lapisan kode yang disentuh, task yang
+harus selesai lebih dulu, dan kriteria selesai. Ukuran: **S** ≤ 1 hari, **M** 2–3 hari,
+**L** 4–5 hari.
+
+Konvensi kode mengikuti yang sudah ada: `migrations/` (lanjut dari `000089`),
+`entities` → `repository` → `processor` → `service` → `handler` / `validator` →
+`router`, dan wiring di `internal/app/app.go`.
+
+---
+
+## Ringkasan
+
+| Fase | Task | Terblokir oleh catatan PRD |
+|---|---|---|
+| 1. Fondasi | PC-101 – PC-109 | – |
+| 2. Earning | PC-201 – PC-205 | – |
+| 3. Pembayaran EnakPoint | PC-301 – PC-308 | N2 (keuangan), N3 (legal) sebelum **rilis** |
+| 4. Pergerakan saldo | PC-401 – PC-404 | N3 (legal) sebelum **rilis** |
+| 5. Kedaluwarsa | PC-501 – PC-504 | N4 (model kedaluwarsa) sebelum **dikerjakan** |
+| 6. Bersih-bersih | PC-601 – PC-602 | – |
+
+Catatan N2 dan N3 hanya memblokir **rilis** fase 3–4, bukan pengerjaannya. N4
+memblokir pengerjaan fase 5, karena rumus kedaluwarsanya belum ditentukan.
+
+```
+PC-101 ─┬─ PC-103 ── PC-104 ─┬─ PC-105 ── PC-106
+        │                    ├─ PC-107
+        │                    ├─ PC-108
+        │                    ├─ PC-203 ── PC-204 ── PC-205
+        │                    ├─ PC-305 ── PC-306 / PC-307
+        │                    ├─ PC-401 / PC-402 / PC-403 / PC-404
+        │                    └─ PC-502 ── PC-503
+PC-102 ── PC-109 ─┬─ PC-201 ── PC-202 ── PC-203
+                  └─ PC-302
+PC-301 ── PC-304 ── PC-305
+PC-303 ── PC-305
+```
+
+---
+
+## Fase 1 — Fondasi
+
+Semua fase lain bergantung pada fase ini. **PC-104 (wallet engine) adalah inti.** Tidak
+ada kode lain yang boleh mengubah saldo tanpa lewat engine ini.
+
+### PC-101 · Migrasi tabel wallet, ledger, dan lot · M
+- **PRD:** §8 (`customer_wallets`, `wallet_transactions`, `wallet_lots`,
+  `wallet_lot_allocations`), K5, K9
+- **Kerjakan:** migrasi `000090_create_wallet_tables` (up & down) dengan semua
+  `CHECK` constraint dan index persis seperti di §8.
+- **Selesai jika:**
+  - Up dan down berjalan bersih di database kosong dan di salinan staging.
+  - Uji constraint langsung di SQL, masing-masing harus ditolak:
+    `PAYMENT` bercurrency `COIN`; `TRANSFER_IN` tanpa `counterparty_customer_id`;
+    `EARN_REVERSAL` tanpa `reverses_transaction_id`; `ADJUSTMENT` tanpa `reason`;
+    `EXPIRE` dengan `reference_type` selain `LOT`; saldo negatif; lot dengan
+    `remaining_amount > original_amount`.
+- **Bergantung pada:** –
+
+### PC-102 · Migrasi pengaturan organisasi dan riwayat perubahan setting · S
+- **PRD:** F2, `loyalty_setting_changes` di §8
+- **Kerjakan:** tabel `organization_settings` (key–value, pola sama dengan
+  `outlet_settings`, `UNIQUE(organization_id, key)`) dan `loyalty_setting_changes`.
+  Saat ini belum ada tempat menyimpan setting per organisasi.
+- **Selesai jika:** up/down bersih.
+- **Bergantung pada:** –
+
+### PC-103 · Entities dan repository wallet · M
+- **PRD:** §7.1–§7.4
+- **Kerjakan:**
+  - Entities untuk empat tabel PC-101.
+  - Repository yang **selalu** memakai `DBFromContext` (berbeda dari repository
+    gamification yang sekarang memakai `r.db` langsung).
+  - `LockWallet(ctx, customerID)` dengan `SELECT … FOR UPDATE`. Membuat baris wallet
+    jika belum ada (`INSERT … ON CONFLICT DO NOTHING`, lalu lock).
+  - `LockWallets(ctx, a, b)` yang selalu mengunci berurutan berdasarkan `customer_id`.
+  - Update saldo bersyarat yang **mengembalikan error jika 0 baris ter-update**.
+  - Query lot aktif sesuai urutan K9: `expires_at NULLS LAST, created_at`.
+- **Selesai jika:** test repository menunjukkan update bersyarat gagal saat saldo
+  kurang, dan dua goroutine yang mengunci wallet yang sama berjalan bergantian.
+- **Bergantung pada:** PC-101
+
+### PC-104 · Wallet engine (credit / debit / lot / idempotensi) · L
+- **PRD:** K5, K6, K9, §7, §8.1
+- **Kerjakan:** processor `WalletProcessor` sebagai **satu-satunya pintu** perubahan
+  saldo:
+  - `Credit(ctx, CreditInput)`: menulis ledger, membuat lot (dengan `expires_at` dan
+    `origin_lot_id` dari input), dan menambah saldo.
+  - `Debit(ctx, DebitInput)`: mengambil dari lot sesuai urutan K9 (atau dari lot
+    tertentu lebih dulu, untuk reversal di F10), menulis alokasi dan ledger, lalu
+    mengurangi saldo. Mengembalikan daftar alokasi, supaya transfer/exchange bisa
+    membuat lot penerima dengan `expires_at` yang sama.
+  - `DebitUpTo`: mengambil sebanyak yang tersedia, untuk reversal dengan shortfall
+    (F10, Q3).
+  - Idempotensi: jika `idempotency_key` sudah ada, kembalikan hasil pertama tanpa
+    mutasi baru.
+  - Validasi di level kode untuk aturan §8.1 (tipe ↔ currency ↔ referensi wajib),
+    sebagai lapisan kedua di atas constraint database.
+  - Semua method mewajibkan caller sudah berada di dalam transaksi dan wallet sudah
+    dikunci.
+- **Selesai jika:** unit test mencakup debit yang melewati beberapa lot, urutan lot
+  dengan dan tanpa `expires_at`, debit melebihi saldo (ditolak), `DebitUpTo` dengan
+  shortfall, idempotency key ganda, dan saldo = `SUM(ledger)` = `SUM(lot.remaining)`
+  setelah setiap skenario.
+- **Bergantung pada:** PC-103
+
+### PC-105 · Migrasi data Point & Token lama · M
+- **PRD:** §10, Q6
+- **Kerjakan:** migrasi data (atau command satu kali) yang:
+  - Membuat wallet dari `customer_points` dan penjumlahan semua jenis
+    `customer_tokens`.
+  - Menulis ledger `MIGRATION` dan lot tanpa `expires_at` per customer per currency,
+    dengan rincian per jenis token di `metadata`.
+  - Mengganti `TOKENS` menjadi `COINS` di `campaigns.type` dan
+    `campaign_rules.reward_type`.
+- **Selesai jika:** jumlah total Point dan Token sebelum = jumlah total saldo wallet
+  sesudah (diuji pada salinan data staging), dan migrasi aman dijalankan dua kali
+  (tidak menggandakan).
+- **Bergantung pada:** PC-104
+
+### PC-106 · Endpoint saldo & riwayat customer · M
+- **PRD:** F6, §9 (customer app)
+- **Kerjakan:** `GET /customer/wallet` dan `GET /customer/wallet/transactions`
+  (pagination, filter currency/tipe/tanggal). Ganti isi `/customer/points` dan
+  `/customer/tokens` menjadi alias yang membaca `customer_wallets`. Hapus pemakaian
+  `customer_points_repository` untuk saldo.
+- **Selesai jika:** response menampilkan asal/tujuan setiap mutasi sesuai §8.1, dan
+  aplikasi lama yang memanggil `/points` / `/tokens` tetap mendapat angka yang benar.
+- **Bergantung pada:** PC-105
+
+### PC-107 · Wallet customer dan adjustment di dashboard · M
+- **PRD:** F7
+- **Kerjakan:** `GET /marketing/customers/:id/wallet` (saldo, lot aktif, mutasi) dan
+  `POST /marketing/customers/:id/wallet/adjust` (alasan wajib, tidak boleh membuat saldo
+  negatif, tercatat `created_by_user`).
+- **Selesai jika:** adjustment muncul di riwayat customer dengan nama admin dan alasan.
+  Adjustment yang melebihi saldo ditolak.
+- **Bergantung pada:** PC-104
+
+### PC-108 · Job rekonsiliasi · S
+- **PRD:** §7.5
+- **Kerjakan:** query dan job terjadwal yang memeriksa semua invarian §7.5 dan
+  melaporkan selisih ke log dan notifikasi admin.
+- **Selesai jika:** job menemukan selisih yang sengaja dibuat di data test, dan diam
+  saat data konsisten.
+- **Bergantung pada:** PC-104
+
+### PC-109 · Pembaca setting loyalitas dan riwayat perubahan · M
+- **PRD:** F1, F2 (bagian mekanisme, bukan UI), §8 `loyalty_setting_changes`
+- **Kerjakan:** service yang membaca setting outlet dan organisasi dengan nilai default
+  PRD bila key belum diisi, mengembalikan struct bertipe (bukan string mentah), dan
+  menulis `loyalty_setting_changes` setiap kali setting loyalitas diubah.
+- **Selesai jika:** outlet tanpa setting mendapat semua default PRD, dan setiap
+  perubahan tercatat nilai lama, nilai baru, dan pelakunya.
+- **Bergantung pada:** PC-102
+
+---
+
+## Fase 2 — Earning
+
+### PC-201 · API pengaturan loyalitas outlet · M
+- **PRD:** F1
+- **Kerjakan:** `GET/PUT /outlets/:id/loyalty-settings` dengan validasi F1. Response
+  menyertakan **persentase cashback efektif** (`earn_value × nilai EnakPoint /
+  earn_per_amount`).
+- **Selesai jika:** validasi menolak nilai di luar batas, dan hanya Admin/Manager yang
+  bisa mengubah.
+- **Bergantung pada:** PC-109
+
+### PC-202 · Kalkulator earning · S
+- **PRD:** F1 (rumus), Q1, Q10
+- **Kerjakan:** fungsi murni `CalculateEarning(order, pointPaidAmount, settings)` yang
+  mengembalikan Point, Coin, basis, dan snapshot setting.
+- **Selesai jika:** unit test mencakup contoh di PRD (Rp 87.500 → 875 Point, 3 Coin;
+  dengan Rp 20.000 dibayar EnakPoint → 675 Point, 2 Coin), basis di bawah minimum,
+  `max_per_order`, setting nonaktif, dan pajak tidak ikut dihitung.
+- **Bergantung pada:** PC-201
+
+### PC-203 · Earning saat order lunas · L
+- **PRD:** F3
+- **Kerjakan:**
+  - **Satukan titik "order menjadi lunas".** Saat ini `payment_status = completed`
+    di-set di empat tempat: `OrderProcessorImpl.UpdateOrder`,
+    `OrderProcessorImpl.updateOrderStatus`, dan dua tempat di `split_bill_processor.go`.
+    Buat satu hook `onOrderPaid(orderID)` yang dipanggil dari keempatnya.
+  - Hook menjalankan earning **setelah** transaksi pembayaran commit, sehingga
+    kegagalan earning tidak menggagalkan pembayaran.
+  - Idempotency key `earn:{order_id}:{currency}`.
+  - Lewati order tanpa customer, customer default, atau customer nonaktif.
+  - **Jaring pengaman:** job yang mencari order lunas beberapa hari terakhir yang belum
+    punya `EARN` (dan seharusnya punya), lalu menjalankan ulang earning.
+- **Selesai jika:** test untuk pembayaran penuh, split bill (lunas di pembayaran
+  terakhir), self-order, dan pemanggilan ganda (hasilnya tetap satu earning). Earning
+  yang sengaja digagalkan tidak menggagalkan pembayaran dan terambil oleh job.
+- **Bergantung pada:** PC-104, PC-202
+
+### PC-204 · Reversal earning saat void / refund · M
+- **PRD:** F10, Q3
+- **Kerjakan:** panggil reversal dari `VoidOrder`, `RefundOrder`, dan `RefundPayment`.
+  Ambil pertama dari lot `EARN` order tersebut, lalu lot lain. Gunakan `DebitUpTo` dan
+  catat `shortfall`. Refund tidak pernah diblokir.
+- **Selesai jika:** test untuk void penuh, refund sebagian (proporsional, akumulasi tidak
+  melebihi earning), dan saldo yang sudah terpakai (shortfall tercatat, saldo 0).
+- **Bergantung pada:** PC-203
+
+### PC-205 · Tampilkan earning di order dan struk · S
+- **PRD:** F3
+- **Kerjakan:** tambah `points_earned` dan `coins_earned` ke response order dan data
+  struk.
+- **Selesai jika:** nilai sama dengan baris `EARN` di ledger, dan bernilai 0 untuk order
+  tanpa earning.
+- **Bergantung pada:** PC-203
+
+---
+
+## Fase 3 — Pembayaran EnakPoint
+
+> Boleh dikerjakan sekarang. **Tidak boleh dirilis** sebelum catatan N2 (keuangan) dan
+> N3 (legal) ditutup.
+
+### PC-301 · PIN customer · L
+- **PRD:** K8, F11, Q16, Q17
+- **Kerjakan:**
+  - Migrasi kolom PIN di `customers` dan tabel `customer_security_events`.
+  - Purpose OTP baru `pin_setup` dan `pin_reset` di `OtpProcessor`.
+  - Endpoint `/customer/pin/*` (status, OTP, buat, ganti, reset).
+  - Hash bcrypt, tolak PIN lemah (digit sama, berurutan, tanggal lahir).
+  - Kunci 30 menit setelah 5 kali salah, dengan penghitung di database.
+  - Tahan transfer keluar 24 jam setelah reset.
+  - `VerifyPin(ctx, customerID, pin)` untuk dipakai task lain, dengan error
+    `PIN_NOT_SET`, `PIN_INVALID`, `PIN_LOCKED`, `TRANSFER_BLOCKED`.
+  - Hapus PIN oleh admin: `DELETE /marketing/customers/:id/pin`, dan
+    `GET /marketing/customers/:id/security-events`.
+  - PIN tidak pernah muncul di log (termasuk log request body).
+- **Selesai jika:** test untuk semua aturan di atas, termasuk 5 kali salah lalu PIN
+  benar tetap ditolak selama terkunci, dan reset OTP membuka kunci.
+- **Bergantung pada:** –
+
+### PC-302 · API pengaturan loyalitas organisasi · S
+- **PRD:** F2
+- **Kerjakan:** `GET/PUT /marketing/loyalty-settings` untuk nilai EnakPoint, kurs
+  exchange, dan batas transfer, serta `GET /marketing/loyalty-settings/history`.
+  Sebelum menyimpan perubahan nilai EnakPoint atau kurs, response preview menampilkan
+  total saldo beredar dan nilai rupiahnya sebelum/sesudah.
+- **Selesai jika:** perubahan tercatat di riwayat, dan transaksi lama tetap memakai nilai
+  yang dibekukan.
+- **Bergantung pada:** PC-109
+
+### PC-303 · Payment method EnakPoint · M
+- **PRD:** F9 (payment method), §8 (perubahan `payments`), §10.5
+- **Kerjakan:**
+  - Tambah tipe `point` ke `PaymentMethodType` dan validator (`oneof=cash card
+    digital_wallet point`).
+  - Migrasi kolom `points_used` dan `point_value` di `payments`.
+  - Buat payment method sistem "EnakPoint" untuk setiap organisasi yang sudah ada, dan
+    otomatis untuk organisasi baru.
+  - Tolak hapus / ubah tipe method sistem.
+  - Sembunyikan method ini di kasir jika outlet tidak mengaktifkan `accept_payment`.
+- **Selesai jika:** setiap organisasi punya tepat satu method EnakPoint yang tidak bisa
+  dihapus.
+- **Bergantung pada:** –
+
+### PC-304 · Kode bayar sekali pakai · M
+- **PRD:** F9 (persetujuan customer), K8
+- **Kerjakan:** `POST /customer/wallet/payment-code` (butuh PIN) menghasilkan kode 6
+  digit dan QR yang berlaku 2 menit, disimpan di Redis dengan TTL dan diambil
+  sekali-pakai (`GETDEL`). Kode terikat ke `customer_id`.
+- **Selesai jika:** kode kedaluwarsa, kode yang sudah dipakai, dan kode milik customer
+  lain semuanya ditolak.
+- **Bergantung pada:** PC-301
+
+### PC-305 · Bayar EnakPoint di kasir · L
+- **PRD:** F9 (perhitungan, pencatatan), K7
+- **Kerjakan:**
+  - `GET /orders/:id/point-payment/preview`.
+  - Cabang method `point` di `CreatePayment`: validasi kode bayar, cocokkan customer
+    order, hitung `maks_point`, lalu lakukan langkah 1–6 F9 dalam **satu transaksi**
+    bersama pembuatan baris `payments`.
+  - Idempotency `payment:{payment_id}`.
+  - Tolak jika `nominal_rupiah > remaining_amount` (tidak ada kembalian).
+- **Selesai jika:** test untuk pembayaran penuh, sebagian + tunai (split), batas
+  `max_payment_percent`, order walk-in (ditolak), kode salah (ditolak), dan dua
+  pembayaran bersamaan untuk customer yang sama (saldo tidak terpakai dua kali).
+  Earning (PC-203) menghitung basis tanpa bagian EnakPoint.
+- **Bergantung pada:** PC-104, PC-303, PC-304
+
+### PC-306 · Bayar EnakPoint dari app / self-order · M
+- **PRD:** F9
+- **Kerjakan:** `POST /customer/orders/:id/pay-with-points` (butuh PIN, hanya untuk
+  order milik customer itu sendiri), memakai logika yang sama dengan PC-305.
+- **Selesai jika:** customer tidak bisa membayar order milik customer lain.
+- **Bergantung pada:** PC-305
+
+### PC-307 · Refund pembayaran EnakPoint · M
+- **PRD:** F9 (void/refund), K7, Q13
+- **Kerjakan:** `PAYMENT_REFUND` di jalur void dan refund memakai `point_value` yang
+  dibekukan, dengan pembulatan ke bawah. Kembalikan ke lot dengan `expires_at` asal
+  (aturan perpanjangan 7 hari mengikuti N4, jadi untuk sekarang cukup pakai tanggal
+  asal). **Tolak** permintaan refund bagian EnakPoint lewat method lain.
+- **Selesai jika:** test untuk void penuh, refund sebagian, perubahan nilai EnakPoint di
+  antara bayar dan refund (jumlah EnakPoint yang kembali tetap sama), dan percobaan
+  refund tunai atas pembayaran EnakPoint (ditolak).
+- **Bergantung pada:** PC-305
+
+### PC-308 · EnakPoint di laporan · S
+- **PRD:** F9 (laporan)
+- **Kerjakan:** laporan per payment method menampilkan EnakPoint terpisah dan tidak
+  menghitungnya sebagai kas masuk. Cek laporan analytics yang menjumlahkan pembayaran.
+- **Selesai jika:** total kas masuk di laporan tidak berubah saat sebagian order dibayar
+  EnakPoint. Perlakuan akuntansi lanjutan menunggu N2.
+- **Bergantung pada:** PC-305
+
+---
+
+## Fase 4 — Pergerakan Saldo
+
+> Boleh dikerjakan sekarang. Transfer (PC-402) **tidak boleh dirilis** sebelum N3
+> (legal) ditutup.
+
+### PC-401 · Exchange EnakCoin → EnakPoint · M
+- **PRD:** F4, K3
+- **Kerjakan:** `GET /customer/wallet/exchange/preview` dan
+  `POST /customer/wallet/exchange` (butuh PIN, `Idempotency-Key`). Jumlah harus
+  kelipatan `coin_amount`. Kurs dibekukan di metadata. Lot EnakPoint kedaluwarsa pada
+  `min(lot EnakCoin asal, sekarang + masa berlaku EnakPoint)`.
+- **Selesai jika:** test untuk kurs default 1:1, kurs 10:3, jumlah bukan kelipatan
+  (ditolak), dan `expires_at` lot hasil exchange tidak pernah lebih lama dari lot asal.
+- **Bergantung pada:** PC-104, PC-301, PC-302
+
+### PC-402 · Transfer antar customer · L
+- **PRD:** F5, Q4, Q16
+- **Kerjakan:** `GET /customer/wallet/transfer/recipient` (nama disamarkan) dan
+  `POST /customer/wallet/transfer` (butuh PIN, `Idempotency-Key`). Kunci dua wallet
+  berurutan, cek batas organisasi (per transaksi dan harian), cek
+  `transfer_blocked_until`. Lot penerima mewarisi `expires_at` dan `origin_lot_id` dari
+  lot pengirim. Kirim notifikasi push ke penerima.
+- **Selesai jika:** test untuk transfer ke diri sendiri / customer lain organisasi /
+  customer default (semua ditolak), batas harian, transfer dua arah bersamaan (tidak
+  deadlock), dan `expires_at` di penerima sama persis dengan pengirim.
+- **Bergantung pada:** PC-104, PC-301, PC-302
+
+### PC-403 · Semua game memakai EnakCoin · M
+- **PRD:** F8, K1
+- **Kerjakan:**
+  - `GamePlayProcessor.PlayGame` memotong EnakCoin lewat wallet engine sesuai
+    `games.metadata.coin_cost`.
+  - Seluruh permainan dalam satu transaksi: ubah repository game, game play, dan game
+    prize ke `DBFromContext`. Gagal mengurangi stok hadiah membatalkan permainan (saat
+    ini hanya di-`Printf`), dan rollback manual `AddTokens` dihapus.
+  - Rename `game_plays.token_used` menjadi `coins_used`.
+- **Selesai jika:** test untuk saldo kurang (ditolak, tidak ada `game_plays` yang
+  tercatat), stok hadiah gagal (semua dibatalkan), dan `GAME_SPEND` menunjuk
+  `game_plays.id`.
+- **Bergantung pada:** PC-104
+
+### PC-404 · Telusuri per butir di dashboard · S
+- **PRD:** F7, §8.1 (per butir)
+- **Kerjakan:** `GET /marketing/wallet-transactions/:id/trace` yang mengembalikan
+  alokasi lot dan rantai `origin_lot_id` sampai ke lot pertama.
+- **Selesai jika:** contoh di §8 (A transfer 120 ke B, B bayar 30) menelusuri ke order
+  #ORD-1 milik A.
+- **Bergantung pada:** PC-402
+
+---
+
+## Fase 5 — Kedaluwarsa
+
+> **Jangan dikerjakan sebelum catatan N4 (model kedaluwarsa) diputuskan.** Struktur lot
+> sudah ada sejak PC-101, jadi yang tersisa hanya rumus, job, dan tampilan.
+
+### PC-501 · Setting kedaluwarsa · M
+- **PRD:** F12 (pengaturan), N4
+- **Kerjakan:** key setting sesuai model yang dipilih di N4, dengan validasi dan preview
+  "saldo yang didapat hari ini kedaluwarsa pada …".
+- **Bergantung pada:** PC-302, **N4**
+
+### PC-502 · Hitung `expires_at` saat lot dibuat · M
+- **PRD:** F12 (tabel kedaluwarsa per lot), N4
+- **Kerjakan:** satu fungsi `ComputeExpiry(currency, receivedAt, settings)` yang dipakai
+  oleh `EARN` dan `ADJUSTMENT`, serta aturan aktivasi pertama untuk lot lama (termasuk
+  lot `MIGRATION`).
+- **Bergantung pada:** PC-104, PC-501
+
+### PC-503 · Job kedaluwarsa · M
+- **PRD:** F12 (proses kedaluwarsa)
+- **Kerjakan:** job per jam yang memproses lot lewat tanggal dengan `EXPIRE`
+  (idempotency `expire:{lot_id}`) di bawah lock wallet.
+  - **Jangan menyalin pola `OmsetMilestoneScheduler`.** Scheduler itu menyimpan state di
+    memori, dan menurut komentarnya sendiri bisa mengirim ulang notifikasi setelah
+    restart. Job ini harus aman dijalankan di banyak instance sekaligus: pilih lot
+    dengan `FOR UPDATE SKIP LOCKED`, dan andalkan idempotency key.
+- **Selesai jika:** dua instance yang berjalan bersamaan tidak menghanguskan lot yang
+  sama dua kali, dan tidak ada lot yang lewat tanggal lebih dari 1 jam tanpa diproses.
+- **Bergantung pada:** PC-502
+
+### PC-504 · Pengingat dan tampilan saldo yang akan kedaluwarsa · M
+- **PRD:** F6 (`/wallet/expiring`), F12 (pengingat)
+- **Kerjakan:** endpoint `GET /customer/wallet/expiring`, field saldo kedaluwarsa
+  terdekat di `/wallet`, dan notifikasi pengingat yang dikelompokkan per tanggal.
+  Jadwal pengingat mengikuti N4.
+- **Bergantung pada:** PC-503
+
+---
+
+## Fase 6 — Bersih-bersih
+
+### PC-601 · Hapus tabel dan kode lama · S
+- **PRD:** §10.7
+- **Kerjakan:** satu rilis setelah PC-105 berjalan di production, drop
+  `customer_points` dan `customer_tokens`. Hapus `CustomerPointsProcessor` dan
+  `CustomerTokensProcessor` beserta stub `not implemented`, rute yang di-comment di
+  `router.go`, dan alias `/customer/points` / `/customer/tokens` setelah aplikasi
+  diperbarui.
+- **Bergantung pada:** PC-106, PC-403, dan konfirmasi bahwa aplikasi sudah tidak
+  memanggil endpoint lama.
+
+### PC-602 · Dokumentasi integrasi · S
+- **Kerjakan:** panduan integrasi untuk tim aplikasi dan POS (seperti
+  `integration-weight-based-products.md`): endpoint, kode error PIN, alur kode bayar, dan
+  contoh request/response.
+- **Bergantung pada:** PC-305, PC-402
+
+---
+
+## Yang Bisa Dimulai Sekarang
+
+Bisa dikerjakan paralel tanpa menunggu apa pun:
+- **PC-101** (migrasi wallet) → langsung lanjut **PC-103**, lalu **PC-104**
+- **PC-102** (setting organisasi) → **PC-109**
+- **PC-301** (PIN customer)
+- **PC-303** (payment method EnakPoint)
+
+PC-104 adalah jalur kritis: hampir semua task lain menunggunya.
@@ -121,7 +121,7 @@ type OrderItemResponse struct {
 	Status           string                   `json:"status"`
 	CreatedAt        time.Time                `json:"created_at"`
 	UpdatedAt        time.Time                `json:"updated_at"`
-	PrinterType      string                   `json:"printer_type"`
+	PrinterTypes     []string                 `json:"printer_types"`
 	PrintToChecker   bool                     `json:"print_to_checker"`
 	PaidQuantity     int                      `json:"paid_quantity"`
 }
@@ -16,7 +16,7 @@ type CreateProductRequest struct {
 	Cost            *float64                      `json:"cost,omitempty" validate:"omitempty,min=0"`
 	BusinessType    *string                       `json:"business_type,omitempty"`
 	ImageURL        *string                       `json:"image_url,omitempty" validate:"omitempty,max=500"`
-	PrinterType     *string                       `json:"printer_type,omitempty" validate:"omitempty,max=50"`
+	PrinterTypes    []string                      `json:"printer_types,omitempty" validate:"omitempty,dive,max=50"`
 	PrintToChecker  *bool                         `json:"print_to_checker,omitempty"`
 	UnitID          *uuid.UUID                    `json:"unit_id,omitempty"`
 	SellBy          *string                       `json:"sell_by,omitempty" validate:"omitempty,oneof=unit weight"`
@@ -38,7 +38,7 @@ type UpdateProductRequest struct {
 	Cost           *float64               `json:"cost,omitempty" validate:"omitempty,min=0"`
 	BusinessType   *string                `json:"business_type,omitempty"`
 	ImageURL       *string                `json:"image_url,omitempty" validate:"omitempty,max=500"`
-	PrinterType    *string                `json:"printer_type,omitempty" validate:"omitempty,max=50"`
+	PrinterTypes   []string               `json:"printer_types,omitempty" validate:"omitempty,dive,max=50"` // Replaces the whole list when sent
 	PrintToChecker *bool                  `json:"print_to_checker,omitempty"`
 	UnitID         *uuid.UUID             `json:"unit_id,omitempty"`
 	SellBy         *string                `json:"sell_by,omitempty" validate:"omitempty,oneof=unit weight"`
@@ -76,7 +76,7 @@ type ProductResponse struct {
 	Cost           float64                      `json:"cost"`
 	BusinessType   string                       `json:"business_type"`
 	ImageURL       *string                      `json:"image_url"`
-	PrinterType    string                       `json:"printer_type"`
+	PrinterTypes   []string                     `json:"printer_types"`
 	UnitID         *uuid.UUID                   `json:"unit_id,omitempty"`
 	SellBy         string                       `json:"sell_by"`
 	PrintToChecker bool                         `json:"print_to_checker"`
@@ -1,6 +1,7 @@
 package entities

 import (
+	"strings"
 	"time"

 	"github.com/google/uuid"
@@ -8,24 +9,26 @@ import (
 )

 type Product struct {
-	ID             uuid.UUID  `gorm:"type:uuid;primary_key;default:gen_random_uuid()" json:"id"`
-	OrganizationID uuid.UUID  `gorm:"type:uuid;not null;index" json:"organization_id" validate:"required"`
-	CategoryID     uuid.UUID  `gorm:"type:uuid;not null;index" json:"category_id" validate:"required"`
-	SKU            *string    `gorm:"size:100;index" json:"sku"`
-	Name           string     `gorm:"not null;size:255" json:"name" validate:"required,min=1,max=255"`
-	Description    *string    `gorm:"type:text" json:"description"`
-	Price          float64    `gorm:"type:decimal(10,2);not null" json:"price" validate:"required,min=0"`
-	Cost           float64    `gorm:"type:decimal(10,2);default:0.00" json:"cost" validate:"min=0"`
-	BusinessType   string     `gorm:"size:50;default:'restaurant'" json:"business_type"`
-	ImageURL       *string    `gorm:"size:500" json:"image_url"`
-	PrinterType    string     `gorm:"size:50;default:'kitchen'" json:"printer_type"`
-	UnitID         *uuid.UUID `gorm:"type:uuid;index" json:"unit_id"`
-	SellBy         string     `gorm:"size:20;default:'unit'" json:"sell_by"`
-	HasIngredients bool       `gorm:"default:false" json:"has_ingredients"`
-	Metadata       Metadata   `gorm:"type:jsonb;default:'{}'" json:"metadata"`
-	IsActive       bool       `gorm:"default:true" json:"is_active"`
-	CreatedAt      time.Time  `gorm:"autoCreateTime" json:"created_at"`
-	UpdatedAt      time.Time  `gorm:"autoUpdateTime" json:"updated_at"`
+	ID             uuid.UUID `gorm:"type:uuid;primary_key;default:gen_random_uuid()" json:"id"`
+	OrganizationID uuid.UUID `gorm:"type:uuid;not null;index" json:"organization_id" validate:"required"`
+	CategoryID     uuid.UUID `gorm:"type:uuid;not null;index" json:"category_id" validate:"required"`
+	SKU            *string   `gorm:"size:100;index" json:"sku"`
+	Name           string    `gorm:"not null;size:255" json:"name" validate:"required,min=1,max=255"`
+	Description    *string   `gorm:"type:text" json:"description"`
+	Price          float64   `gorm:"type:decimal(10,2);not null" json:"price" validate:"required,min=0"`
+	Cost           float64   `gorm:"type:decimal(10,2);default:0.00" json:"cost" validate:"min=0"`
+	BusinessType   string    `gorm:"size:50;default:'restaurant'" json:"business_type"`
+	ImageURL       *string   `gorm:"size:500" json:"image_url"`
+	// PrinterTypes are the stations the product is printed at. Set them through
+	// SetPrinterTypes.
+	PrinterTypes   StringSlice `gorm:"type:jsonb;not null;default:'[\"kitchen\"]'" json:"printer_types"`
+	UnitID         *uuid.UUID  `gorm:"type:uuid;index" json:"unit_id"`
+	SellBy         string      `gorm:"size:20;default:'unit'" json:"sell_by"`
+	HasIngredients bool        `gorm:"default:false" json:"has_ingredients"`
+	Metadata       Metadata    `gorm:"type:jsonb;default:'{}'" json:"metadata"`
+	IsActive       bool        `gorm:"default:true" json:"is_active"`
+	CreatedAt      time.Time   `gorm:"autoCreateTime" json:"created_at"`
+	UpdatedAt      time.Time   `gorm:"autoUpdateTime" json:"updated_at"`

 	Organization        Organization         `gorm:"foreignKey:OrganizationID" json:"organization,omitempty"`
 	Category            Category             `gorm:"foreignKey:CategoryID" json:"category,omitempty"`
@@ -48,6 +51,32 @@ func (Product) TableName() string {
 	return "products"
 }

+// SetPrinterTypes records the stations the product is printed at, in order, dropping
+// blanks and repeats.
+func (p *Product) SetPrinterTypes(printerTypes []string) {
+	cleaned := StringSlice{}
+	seen := make(map[string]bool, len(printerTypes))
+	for _, printerType := range printerTypes {
+		printerType = strings.TrimSpace(printerType)
+		if printerType == "" || seen[printerType] {
+			continue
+		}
+		seen[printerType] = true
+		cleaned = append(cleaned, printerType)
+	}
+
+	p.PrinterTypes = cleaned
+}
+
+// GetPrinterTypes returns the stations the product is printed at, never nil, so a
+// response always carries a list. A product that was not loaded has none.
+func (p *Product) GetPrinterTypes() []string {
+	if p.PrinterTypes == nil {
+		return []string{}
+	}
+	return []string(p.PrinterTypes)
+}
+
 type ProductVariant struct {
 	ID            uuid.UUID `gorm:"type:uuid;primary_key;default:gen_random_uuid()" json:"id"`
 	ProductID     uuid.UUID `gorm:"type:uuid;not null;index" json:"product_id" validate:"required"`
@@ -149,7 +149,7 @@ func OrderItemEntityToResponse(item *entities.OrderItem, outletID uuid.UUID) *mo
 		Status:              constants.OrderItemStatus(item.Status),
 		CreatedAt:           item.CreatedAt,
 		UpdatedAt:           item.UpdatedAt,
-		PrinterType:         item.Product.PrinterType,
+		PrinterTypes:        item.Product.GetPrinterTypes(),
 		PrintToChecker:      printToChecker,
 	}

@@ -24,7 +24,7 @@ func ProductEntityToModel(entity *entities.Product) *models.Product {
 		Cost:           entity.Cost,
 		BusinessType:   constants.BusinessType(entity.BusinessType),
 		ImageURL:       entity.ImageURL,
-		PrinterType:    entity.PrinterType,
+		PrinterTypes:   entity.GetPrinterTypes(),
 		UnitID:         entity.UnitID,
 		SellBy:         entity.SellBy,
 		HasIngredients: entity.HasIngredients,
@@ -51,7 +51,7 @@ func ProductModelToEntity(model *models.Product) *entities.Product {
 		Cost:           model.Cost,
 		BusinessType:   string(model.BusinessType),
 		ImageURL:       model.ImageURL,
-		PrinterType:    model.PrinterType,
+		PrinterTypes:   entities.StringSlice(model.PrinterTypes),
 		UnitID:         model.UnitID,
 		SellBy:         model.SellBy,
 		HasIngredients: model.HasIngredients,
@@ -77,11 +77,6 @@ func CreateProductRequestToEntity(req *models.CreateProductRequest) *entities.Pr
 		businessType = string(req.BusinessType)
 	}

-	printerType := "kitchen"
-	if req.PrinterType != nil && *req.PrinterType != "" {
-		printerType = *req.PrinterType
-	}
-
 	sellBy := constants.SellByUnit
 	if constants.IsValidSellBy(req.SellBy) {
 		sellBy = req.SellBy
@@ -92,7 +87,7 @@ func CreateProductRequestToEntity(req *models.CreateProductRequest) *entities.Pr
 		metadata = entities.Metadata(req.Metadata)
 	}

-	return &entities.Product{
+	product := &entities.Product{
 		OrganizationID: req.OrganizationID,
 		CategoryID:     req.CategoryID,
 		SKU:            req.SKU,
@@ -102,12 +97,18 @@ func CreateProductRequestToEntity(req *models.CreateProductRequest) *entities.Pr
 		Cost:           cost,
 		BusinessType:   businessType,
 		ImageURL:       req.ImageURL,
-		PrinterType:    printerType,
 		UnitID:         req.UnitID,
 		SellBy:         sellBy,
 		Metadata:       metadata,
 		IsActive:       true, // Default to active
 	}
+
+	product.SetPrinterTypes(req.PrinterTypes)
+	if len(product.PrinterTypes) == 0 {
+		product.SetPrinterTypes([]string{"kitchen"})
+	}
+
+	return product
 }

 func ProductEntityToResponse(entity *entities.Product) *models.ProductResponse {
@@ -152,7 +153,7 @@ func ProductEntityToResponse(entity *entities.Product) *models.ProductResponse {
 		Cost:           entity.Cost,
 		BusinessType:   constants.BusinessType(entity.BusinessType),
 		ImageURL:       entity.ImageURL,
-		PrinterType:    entity.PrinterType,
+		PrinterTypes:   entity.GetPrinterTypes(),
 		UnitID:         entity.UnitID,
 		SellBy:         entity.SellBy,
 		Metadata:       map[string]interface{}(entity.Metadata),
@@ -196,8 +197,8 @@ func UpdateProductEntityFromRequest(entity *entities.Product, req *models.Update
 		entity.ImageURL = req.ImageURL
 	}

-	if req.PrinterType != nil {
-		entity.PrinterType = *req.PrinterType
+	if req.PrinterTypes != nil {
+		entity.SetPrinterTypes(req.PrinterTypes)
 	}

 	if req.UnitID != nil {
@@ -0,0 +1,102 @@
+package mappers
+
+import (
+	"testing"
+
+	"apskel-pos-be/internal/entities"
+	"apskel-pos-be/internal/models"
+
+	"github.com/google/uuid"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestCreateProductRequestToEntityPrinterTypes(t *testing.T) {
+	tests := []struct {
+		name         string
+		printerTypes []string
+		want         []string
+	}{
+		{
+			name: "nothing sent prints in the kitchen",
+			want: []string{"kitchen"},
+		},
+		{
+			name:         "a meal-and-drink package prints in the kitchen and the bar",
+			printerTypes: []string{"kitchen", "bar"},
+			want:         []string{"kitchen", "bar"},
+		},
+		{
+			name:         "blanks and repeats are dropped",
+			printerTypes: []string{" kitchen ", "", "kitchen", "bar"},
+			want:         []string{"kitchen", "bar"},
+		},
+		{
+			name:         "a list of only blanks falls back to the kitchen",
+			printerTypes: []string{" ", ""},
+			want:         []string{"kitchen"},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			product := CreateProductRequestToEntity(&models.CreateProductRequest{
+				OrganizationID: uuid.New(),
+				CategoryID:     uuid.New(),
+				Name:           "Paket Makan Minum",
+				PrinterTypes:   tt.printerTypes,
+			})
+
+			assert.Equal(t, entities.StringSlice(tt.want), product.PrinterTypes)
+		})
+	}
+}
+
+func TestUpdateProductEntityFromRequestPrinterTypes(t *testing.T) {
+	tests := []struct {
+		name         string
+		printerTypes []string
+		want         []string
+	}{
+		{
+			name: "a save that does not send printers keeps them",
+			want: []string{"kitchen", "bar"},
+		},
+		{
+			name:         "printer_types replaces the whole list",
+			printerTypes: []string{"bar"},
+			want:         []string{"bar"},
+		},
+		{
+			name:         "an empty printer_types prints nowhere",
+			printerTypes: []string{},
+			want:         []string{},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			product := &entities.Product{}
+			product.SetPrinterTypes([]string{"kitchen", "bar"})
+
+			UpdateProductEntityFromRequest(product, &models.UpdateProductRequest{PrinterTypes: tt.printerTypes})
+
+			assert.Equal(t, entities.StringSlice(tt.want), product.PrinterTypes)
+		})
+	}
+}
+
+func TestOrderItemEntityToResponsePrinterTypes(t *testing.T) {
+	product := entities.Product{ID: uuid.New(), Name: "Paket Makan Minum"}
+	product.SetPrinterTypes([]string{"kitchen", "bar"})
+
+	response := OrderItemEntityToResponse(&entities.OrderItem{ProductID: product.ID, Product: product}, uuid.New())
+
+	assert.Equal(t, []string{"kitchen", "bar"}, response.PrinterTypes)
+}
+
+func TestProductEntityToResponseAlwaysHasAList(t *testing.T) {
+	// The POS reads printer_types as a list, so a product without one sends [] not null.
+	response := ProductEntityToResponse(&entities.Product{})
+
+	assert.Equal(t, []string{}, response.PrinterTypes)
+}
@@ -218,7 +218,7 @@ type OrderItemResponse struct {
 	Status              constants.OrderItemStatus
 	CreatedAt           time.Time
 	UpdatedAt           time.Time
-	PrinterType         string
+	PrinterTypes        []string
 	PrintToChecker      bool
 	PaidQuantity        int
 }
@@ -18,7 +18,7 @@ type Product struct {
 	Cost           float64
 	BusinessType   constants.BusinessType
 	ImageURL       *string
-	PrinterType    string
+	PrinterTypes   []string
 	SellBy         string
 	UnitID         *uuid.UUID
 	HasIngredients bool
@@ -50,7 +50,7 @@ type CreateProductRequest struct {
 	Cost           float64                `validate:"min=0"`
 	BusinessType   constants.BusinessType `validate:"required"`
 	ImageURL       *string                `validate:"omitempty,max=500"`
-	PrinterType    *string                `validate:"omitempty,max=50"`
+	PrinterTypes   []string               `validate:"omitempty,dive,max=50"`
 	PrintToChecker *bool                  `validate:"omitempty"`
 	UnitID         *uuid.UUID             `validate:"omitempty"`
 	SellBy         string                 `validate:"omitempty,oneof=unit weight"`
@@ -72,7 +72,7 @@ type UpdateProductRequest struct {
 	Price          *float64   `validate:"omitempty,min=0"`
 	Cost           *float64   `validate:"omitempty,min=0"`
 	ImageURL       *string    `validate:"omitempty,max=500"`
-	PrinterType    *string    `validate:"omitempty,max=50"`
+	PrinterTypes   []string   `validate:"omitempty,dive,max=50"` // Replaces the whole list when not nil
 	PrintToChecker *bool      `validate:"omitempty"`
 	UnitID         *uuid.UUID `validate:"omitempty"`
 	SellBy         *string    `validate:"omitempty,oneof=unit weight"`
@@ -112,7 +112,7 @@ type ProductResponse struct {
 	Cost           float64
 	BusinessType   constants.BusinessType
 	ImageURL       *string
-	PrinterType    string
+	PrinterTypes   []string
 	SellBy         string
 	PrintToChecker bool
 	UnitID         *uuid.UUID
@@ -0,0 +1,46 @@
+package processor
+
+import (
+	"testing"
+
+	"apskel-pos-be/internal/entities"
+
+	"github.com/google/uuid"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+// The items AddToOrder creates have no product loaded, so their responses used to go out
+// without a name or a printer, and the POS could not print them.
+func TestAddedItemsFromOrderUsesTheReloadedProduct(t *testing.T) {
+	outletID := uuid.New()
+
+	paket := entities.Product{ID: uuid.New(), Name: "Paket Makan Minum"}
+	paket.SetPrinterTypes([]string{"kitchen", "bar"})
+	paket.ProductOutletPrices = []entities.ProductOutletPrice{{OutletID: outletID, PrintToChecker: false}}
+	esTeh := entities.Product{ID: uuid.New(), Name: "Es Teh"}
+	esTeh.SetPrinterTypes([]string{"bar"})
+
+	existing := entities.OrderItem{ID: uuid.New(), ProductID: esTeh.ID, Product: esTeh}
+	addedPaket := &entities.OrderItem{ID: uuid.New(), ProductID: paket.ID}
+	addedEsTeh := &entities.OrderItem{ID: uuid.New(), ProductID: esTeh.ID}
+
+	order := &entities.Order{
+		OutletID: outletID,
+		OrderItems: []entities.OrderItem{
+			existing,
+			{ID: addedEsTeh.ID, ProductID: esTeh.ID, Product: esTeh},
+			{ID: addedPaket.ID, ProductID: paket.ID, Product: paket},
+		},
+	}
+
+	responses := addedItemsFromOrder([]*entities.OrderItem{addedPaket, addedEsTeh}, order)
+
+	require.Len(t, responses, 2, "only the added items, not the ones already on the order")
+	assert.Equal(t, addedPaket.ID, responses[0].ID, "in the order they were requested")
+	assert.Equal(t, "Paket Makan Minum", responses[0].ProductName)
+	assert.Equal(t, []string{"kitchen", "bar"}, responses[0].PrinterTypes)
+	assert.False(t, responses[0].PrintToChecker, "the outlet's print_to_checker is loaded too")
+	assert.Equal(t, addedEsTeh.ID, responses[1].ID)
+	assert.Equal(t, []string{"bar"}, responses[1].PrinterTypes)
+}
@@ -316,6 +316,18 @@ func resolveLineQuantity(product *entities.Product, quantity int, weight *float6
 }

 func (p *OrderProcessorImpl) CreateOrder(ctx context.Context, req *models.CreateOrderRequest, organizationID uuid.UUID) (*models.OrderResponse, error) {
+	// The order's customer earns EnakPoint and EnakCoin once it is paid, so it must be
+	// one of the organization's own; orders.customer_id has no foreign key to catch it.
+	customerID := req.CustomerID
+	if customerID != nil && *customerID == uuid.Nil {
+		customerID = nil
+	}
+	if customerID != nil {
+		if _, err := p.customerRepo.GetByIDAndOrganization(ctx, *customerID, organizationID); err != nil {
+			return nil, fmt.Errorf("customer not found or does not belong to the organization: %w", err)
+		}
+	}
+
 	orderNumber, err := p.orderRepo.GetNextOrderNumber(ctx, organizationID, req.OutletID)
 	if err != nil {
 		return nil, fmt.Errorf("failed to generate order number: %w", err)
@@ -401,7 +413,7 @@ func (p *OrderProcessorImpl) CreateOrder(ctx context.Context, req *models.Create
 		OrganizationID:  organizationID,
 		OutletID:        req.OutletID,
 		UserID:          req.UserID,
-		CustomerID:      req.CustomerID,
+		CustomerID:      customerID,
 		OrderNumber:     orderNumber,
 		TableNumber:     req.TableNumber,
 		OrderType:       entities.OrderType(req.OrderType),
@@ -556,16 +568,10 @@ func (p *OrderProcessorImpl) AddToOrder(ctx context.Context, orderID uuid.UUID,
 		return nil, fmt.Errorf("failed to update order: %w", err)
 	}

-	var addedItemResponses []models.OrderItemResponse
 	for _, orderItem := range addedOrderItems {
 		if err := p.orderItemRepo.Create(ctx, orderItem); err != nil {
 			return nil, fmt.Errorf("failed to create order item: %w", err)
 		}
-
-		itemResponse := mappers.OrderItemEntityToResponse(orderItem, order.OutletID)
-		if itemResponse != nil {
-			addedItemResponses = append(addedItemResponses, *itemResponse)
-		}
 	}

 	orderWithRelations, err := p.orderRepo.GetWithRelations(ctx, orderID)
@@ -573,6 +579,10 @@ func (p *OrderProcessorImpl) AddToOrder(ctx context.Context, orderID uuid.UUID,
 		return nil, fmt.Errorf("failed to retrieve updated order: %w", err)
 	}

+	// The items just created carry no product, so take them from the reloaded order: the
+	// POS prints added items from this response and needs their name and printers.
+	addedItemResponses := addedItemsFromOrder(addedOrderItems, orderWithRelations)
+
 	updatedOrderResponse := mappers.OrderEntityToResponse(orderWithRelations)
 	p.attachEarnings(ctx, updatedOrderResponse)

@@ -584,6 +594,26 @@ func (p *OrderProcessorImpl) AddToOrder(ctx context.Context, orderID uuid.UUID,
 	}, nil
 }

+// addedItemsFromOrder maps the added items in the order they were requested, using their
+// copies in the reloaded order, which have the product and its outlet prices loaded.
+func addedItemsFromOrder(added []*entities.OrderItem, order *entities.Order) []models.OrderItemResponse {
+	reloaded := make(map[uuid.UUID]*entities.OrderItem, len(order.OrderItems))
+	for i := range order.OrderItems {
+		reloaded[order.OrderItems[i].ID] = &order.OrderItems[i]
+	}
+
+	var responses []models.OrderItemResponse
+	for _, item := range added {
+		if loaded, ok := reloaded[item.ID]; ok {
+			item = loaded
+		}
+		if response := mappers.OrderItemEntityToResponse(item, order.OutletID); response != nil {
+			responses = append(responses, *response)
+		}
+	}
+	return responses
+}
+
 func (p *OrderProcessorImpl) UpdateOrder(ctx context.Context, id uuid.UUID, req *models.UpdateOrderRequest) (*models.OrderResponse, error) {
 	// Get existing order
 	order, err := p.orderRepo.GetByID(ctx, id)
@@ -199,7 +199,7 @@ func (p *ProductRecipeProcessorImpl) entityToResponse(entity *entities.ProductRe
 			Cost:           entity.Product.Cost,
 			BusinessType:   string(entity.Product.BusinessType),
 			ImageURL:       entity.Product.ImageURL,
-			PrinterType:    entity.Product.PrinterType,
+			PrinterTypes:   entity.Product.GetPrinterTypes(),
 			Metadata:       entity.Product.Metadata,
 			IsActive:       entity.Product.IsActive,
 			CreatedAt:      entity.Product.CreatedAt,
@@ -39,7 +39,7 @@ func (r *ProductIngredientRepository) Create(ctx context.Context, productIngredi
 func (r *ProductIngredientRepository) GetByID(ctx context.Context, id, organizationID uuid.UUID) (*entities.ProductIngredient, error) {
 	query := `
 		SELECT pi.id, pi.organization_id, pi.outlet_id, pi.product_id, pi.ingredient_id, pi.quantity, pi.created_at, pi.updated_at,
-		       p.id, p.organization_id, p.category_id, p.sku, p.name, p.description, p.price, p.cost, p.business_type, p.image_url, p.printer_type, p.unit_id, p.has_ingredients, p.metadata, p.is_active, p.created_at, p.updated_at,
+		       p.id, p.organization_id, p.category_id, p.sku, p.name, p.description, p.price, p.cost, p.business_type, p.image_url, p.printer_types, p.unit_id, p.has_ingredients, p.metadata, p.is_active, p.created_at, p.updated_at,
 		       i.id, i.organization_id, i.outlet_id, i.name, i.unit_id, i.cost, i.stock, i.is_semi_finished, i.is_active, i.metadata, i.created_at, i.updated_at
 		FROM product_ingredients pi
 		LEFT JOIN products p ON pi.product_id = p.id
@@ -70,7 +70,7 @@ func (r *ProductIngredientRepository) GetByID(ctx context.Context, id, organizat
 		&product.Cost,
 		&product.BusinessType,
 		&product.ImageURL,
-		&product.PrinterType,
+		&product.PrinterTypes,
 		&product.UnitID,
 		&product.HasIngredients,
 		&product.Metadata,
@@ -103,7 +103,7 @@ func (r *ProductIngredientRepository) GetByID(ctx context.Context, id, organizat
 func (r *ProductIngredientRepository) GetByProductID(ctx context.Context, productID, organizationID uuid.UUID) ([]*entities.ProductIngredient, error) {
 	query := `
 		SELECT pi.id, pi.organization_id, pi.outlet_id, pi.product_id, pi.ingredient_id, pi.quantity, pi.created_at, pi.updated_at,
-		       p.id, p.organization_id, p.category_id, p.sku, p.name, p.description, p.price, p.cost, p.business_type, p.image_url, p.printer_type, p.unit_id, p.has_ingredients, p.metadata, p.is_active, p.created_at, p.updated_at,
+		       p.id, p.organization_id, p.category_id, p.sku, p.name, p.description, p.price, p.cost, p.business_type, p.image_url, p.printer_types, p.unit_id, p.has_ingredients, p.metadata, p.is_active, p.created_at, p.updated_at,
 		       i.id, i.organization_id, i.outlet_id, i.name, i.unit_id, i.cost, i.stock, i.is_semi_finished, i.is_active, i.metadata, i.created_at, i.updated_at
 		FROM product_ingredients pi
 		LEFT JOIN products p ON pi.product_id = p.id
@@ -143,7 +143,7 @@ func (r *ProductIngredientRepository) GetByProductID(ctx context.Context, produc
 			&product.Cost,
 			&product.BusinessType,
 			&product.ImageURL,
-			&product.PrinterType,
+			&product.PrinterTypes,
 			&product.UnitID,
 			&product.HasIngredients,
 			&product.Metadata,
@@ -178,7 +178,7 @@ func (r *ProductIngredientRepository) GetByProductID(ctx context.Context, produc
 func (r *ProductIngredientRepository) GetByIngredientID(ctx context.Context, ingredientID, organizationID uuid.UUID) ([]*entities.ProductIngredient, error) {
 	query := `
 		SELECT pi.id, pi.organization_id, pi.outlet_id, pi.product_id, pi.ingredient_id, pi.quantity, pi.created_at, pi.updated_at,
-		       p.id, p.organization_id, p.category_id, p.sku, p.name, p.description, p.price, p.cost, p.business_type, p.image_url, p.printer_type, p.unit_id, p.has_ingredients, p.metadata, p.is_active, p.created_at, p.updated_at,
+		       p.id, p.organization_id, p.category_id, p.sku, p.name, p.description, p.price, p.cost, p.business_type, p.image_url, p.printer_types, p.unit_id, p.has_ingredients, p.metadata, p.is_active, p.created_at, p.updated_at,
 		       i.id, i.organization_id, i.outlet_id, i.name, i.unit_id, i.cost, i.stock, i.is_semi_finished, i.is_active, i.metadata, i.created_at, i.updated_at
 		FROM product_ingredients pi
 		LEFT JOIN products p ON pi.product_id = p.id
@@ -218,7 +218,7 @@ func (r *ProductIngredientRepository) GetByIngredientID(ctx context.Context, ing
 			&product.Cost,
 			&product.BusinessType,
 			&product.ImageURL,
-			&product.PrinterType,
+			&product.PrinterTypes,
 			&product.UnitID,
 			&product.HasIngredients,
 			&product.Metadata,
@@ -0,0 +1,48 @@
+package repository
+
+import (
+	"context"
+	"testing"
+
+	"github.com/google/uuid"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+
+	"apskel-pos-be/internal/entities"
+)
+
+// Needs TEST_DATABASE_URL pointing at a migrated database; see walletTestDB.
+func TestProductPrinterTypes_AgainstPostgres(t *testing.T) {
+	db := walletTestDB(t)
+	ctx := context.Background()
+
+	org, category := uuid.New(), uuid.New()
+	require.NoError(t, db.Exec(`INSERT INTO organizations (id, name, plan_type) VALUES (?, 'printer test', 'basic')`, org).Error)
+	require.NoError(t, db.Exec(`INSERT INTO categories (id, organization_id, name) VALUES (?, ?, 'Paket')`, category, org).Error)
+	t.Cleanup(func() {
+		db.Exec(`DELETE FROM products WHERE organization_id = ?`, org)
+		db.Exec(`DELETE FROM categories WHERE id = ?`, category)
+		db.Exec(`DELETE FROM organizations WHERE id = ?`, org)
+	})
+
+	repo := NewProductRepositoryImpl(db)
+	product := &entities.Product{OrganizationID: org, CategoryID: category, Name: "Paket Makan Minum", Price: 25000}
+	product.SetPrinterTypes([]string{"kitchen", "bar"})
+	require.NoError(t, repo.Create(ctx, product))
+
+	stored, err := repo.GetByID(ctx, product.ID)
+	require.NoError(t, err)
+	assert.Equal(t, entities.StringSlice{"kitchen", "bar"}, stored.PrinterTypes)
+
+	stored.SetPrinterTypes([]string{"bar"})
+	require.NoError(t, repo.Update(ctx, stored))
+
+	var printerTypes string
+	require.NoError(t, db.Raw(`SELECT printer_types::text FROM products WHERE id = ?`, product.ID).Scan(&printerTypes).Error)
+	assert.Equal(t, `["bar"]`, printerTypes)
+
+	// The old single column is gone.
+	var columns int64
+	require.NoError(t, db.Raw(`SELECT COUNT(*) FROM information_schema.columns WHERE table_name = 'products' AND column_name = 'printer_type'`).Scan(&columns).Error)
+	assert.Zero(t, columns)
+}
@@ -44,8 +44,9 @@ func InventoryModelResponseToResponse(inv *models.InventoryResponse) *contract.I
 		IsLowStock:   inv.IsLowStock,
 		UpdatedAt:    inv.UpdatedAt,
 		Product: &contract.ProductResponse{
-			ID:   inv.ProductID,
-			Name: inv.ProductName,
+			ID:           inv.ProductID,
+			Name:         inv.ProductName,
+			PrinterTypes: []string{},
 		},
 	}
 }
@@ -27,6 +27,7 @@ func CreateOrderContractToModel(req *contract.CreateOrderRequest) *models.Create
 	return &models.CreateOrderRequest{
 		OutletID:     req.OutletID,
 		UserID:       req.UserID,
+		CustomerID:   req.CustomerID,
 		TableID:      req.TableID,
 		TableNumber:  req.TableNumber,
 		OrderType:    constants.OrderType(req.OrderType),
@@ -117,7 +118,7 @@ func OrderModelToContract(resp *models.OrderResponse) *contract.OrderResponse {
 			Status:             string(item.Status),
 			CreatedAt:          item.CreatedAt,
 			UpdatedAt:          item.UpdatedAt,
-			PrinterType:        item.PrinterType,
+			PrinterTypes:       item.PrinterTypes,
 			PrintToChecker:     item.PrintToChecker,
 			PaidQuantity:       item.PaidQuantity,
 		}
@@ -194,6 +195,7 @@ func AddToOrderModelToContract(resp *models.AddToOrderResponse) *contract.AddToO
 			Status:             string(item.Status),
 			CreatedAt:          item.CreatedAt,
 			UpdatedAt:          item.UpdatedAt,
+			PrinterTypes:       item.PrinterTypes,
 			PrintToChecker:     item.PrintToChecker,
 		}
 	}
@@ -0,0 +1,50 @@
+package transformer
+
+import (
+	"encoding/json"
+	"testing"
+
+	"apskel-pos-be/internal/entities"
+	"apskel-pos-be/internal/mappers"
+	"apskel-pos-be/internal/models"
+
+	"github.com/google/uuid"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+// The POS prints items added to an open order from this response, so each one has to
+// say where it is printed.
+func TestAddToOrderModelToContractCarriesPrinters(t *testing.T) {
+	result := AddToOrderModelToContract(&models.AddToOrderResponse{
+		AddedItems: []models.OrderItemResponse{{PrinterTypes: []string{"kitchen", "bar"}}},
+	})
+
+	require.Len(t, result.AddedItems, 1)
+	assert.Equal(t, []string{"kitchen", "bar"}, result.AddedItems[0].PrinterTypes)
+}
+
+// Follows an order from the database row to the JSON the POS reads.
+func TestOrderJSONCarriesPrinters(t *testing.T) {
+	paket := entities.Product{ID: uuid.New(), Name: "Paket Makan Minum"}
+	paket.SetPrinterTypes([]string{"kitchen", "bar"})
+	order := &entities.Order{
+		ID:         uuid.New(),
+		OrderItems: []entities.OrderItem{{ID: uuid.New(), ProductID: paket.ID, Product: paket, Quantity: 1}},
+	}
+
+	body, err := json.Marshal(OrderModelToContract(mappers.OrderEntityToResponse(order)))
+	require.NoError(t, err)
+
+	assert.Contains(t, string(body), `"printer_types":["kitchen","bar"]`)
+	assert.NotContains(t, string(body), `"printer_type":`, "printer_types replaced it")
+}
+
+func TestOrderModelToContractCarriesPrinters(t *testing.T) {
+	result := OrderModelToContract(&models.OrderResponse{
+		OrderItems: []models.OrderItemResponse{{PrinterTypes: []string{"kitchen", "bar"}}},
+	})
+
+	require.Len(t, result.OrderItems, 1)
+	assert.Equal(t, []string{"kitchen", "bar"}, result.OrderItems[0].PrinterTypes)
+}
@@ -32,6 +32,20 @@ func TestCreateOrderContractToModelCarriesWeight(t *testing.T) {
 	require.Equal(t, weight, *result.OrderItems[0].Weight)
 }

+func TestCreateOrderContractToModelCarriesCustomer(t *testing.T) {
+	customerID := uuid.New()
+
+	result := CreateOrderContractToModel(&contract.CreateOrderRequest{
+		OutletID:   uuid.New(),
+		UserID:     uuid.New(),
+		CustomerID: &customerID,
+		OrderItems: []contract.CreateOrderItemRequest{{ProductID: uuid.New(), Quantity: 1}},
+	})
+
+	require.NotNil(t, result.CustomerID, "the order's customer is who earns EnakPoint and EnakCoin")
+	require.Equal(t, customerID, *result.CustomerID)
+}
+
 func TestAddToOrderContractToModelCarriesWeight(t *testing.T) {
 	weight := 0.8

@@ -61,7 +61,7 @@ func CreateProductRequestToModel(apctx *appcontext.ContextInfo, req *contract.Cr
 		Cost:           cost,
 		BusinessType:   businessType,
 		ImageURL:       req.ImageURL,
-		PrinterType:    req.PrinterType,
+		PrinterTypes:   req.PrinterTypes,
 		PrintToChecker: req.PrintToChecker,
 		UnitID:         req.UnitID,
 		SellBy:         sellBy,
@@ -91,7 +91,7 @@ func UpdateProductRequestToModel(apctx *appcontext.ContextInfo, req *contract.Up
 		Price:          req.Price,
 		Cost:           req.Cost,
 		ImageURL:       req.ImageURL,
-		PrinterType:    req.PrinterType,
+		PrinterTypes:   req.PrinterTypes,
 		PrintToChecker: req.PrintToChecker,
 		UnitID:         req.UnitID,
 		SellBy:         req.SellBy,
@@ -152,7 +152,7 @@ func ProductModelResponseToResponse(prod *models.ProductResponse) *contract.Prod
 		Cost:           prod.Cost,
 		BusinessType:   string(prod.BusinessType),
 		ImageURL:       prod.ImageURL,
-		PrinterType:    prod.PrinterType,
+		PrinterTypes:   prod.PrinterTypes,
 		PrintToChecker: prod.PrintToChecker,
 		UnitID:         prod.UnitID,
 		SellBy:         prod.SellBy,
@@ -59,8 +59,8 @@ func (v *ProductValidatorImpl) ValidateCreateProductRequest(req *contract.Create
 		return errors.New("image_url cannot exceed 500 characters"), constants.MalformedFieldErrorCode
 	}

-	if req.PrinterType != nil && len(*req.PrinterType) > 50 {
-		return errors.New("printer_type cannot exceed 50 characters"), constants.MalformedFieldErrorCode
+	if err, code := validatePrinterTypes(req.PrinterTypes); err != nil {
+		return err, code
 	}

 	if err, code := validateSellBy(req.SellBy, req.UnitID); err != nil {
@@ -70,6 +70,18 @@ func (v *ProductValidatorImpl) ValidateCreateProductRequest(req *contract.Create
 	return nil, ""
 }

+// validatePrinterTypes holds each printer to the 50 characters the single printer_type
+// column allowed.
+func validatePrinterTypes(printerTypes []string) (error, string) {
+	for _, printerType := range printerTypes {
+		if len(strings.TrimSpace(printerType)) > 50 {
+			return errors.New("each printer_types entry cannot exceed 50 characters"), constants.MalformedFieldErrorCode
+		}
+	}
+
+	return nil, ""
+}
+
 // validateSellBy checks how a product is sold and that it carries what that choice
 // needs. A weight-based product without a unit would produce order lines with no unit
 // to print, so the receipt could show "4,2" with no idea of what.
@@ -100,7 +112,7 @@ func (v *ProductValidatorImpl) ValidateUpdateProductRequest(req *contract.Update
 	// At least one field should be provided for update
 	if req.CategoryID == nil && req.SKU == nil && req.Name == nil && req.Description == nil &&
 		req.Price == nil && req.Cost == nil && req.BusinessType == nil && req.ImageURL == nil &&
-		req.PrinterType == nil && req.PrintToChecker == nil && req.UnitID == nil &&
+		req.PrinterTypes == nil && req.PrintToChecker == nil && req.UnitID == nil &&
 		req.SellBy == nil && req.Metadata == nil && req.IsActive == nil {
 		return errors.New("at least one field must be provided for update"), constants.MissingFieldErrorCode
 	}
@@ -134,8 +146,8 @@ func (v *ProductValidatorImpl) ValidateUpdateProductRequest(req *contract.Update
 		return errors.New("image_url cannot exceed 500 characters"), constants.MalformedFieldErrorCode
 	}

-	if req.PrinterType != nil && len(*req.PrinterType) > 50 {
-		return errors.New("printer_type cannot exceed 50 characters"), constants.MalformedFieldErrorCode
+	if err, code := validatePrinterTypes(req.PrinterTypes); err != nil {
+		return err, code
 	}

 	// Only the value is checked here. Whether the product ends up with a unit depends on
@@ -0,0 +1,35 @@
+package validator
+
+import (
+	"strings"
+	"testing"
+
+	"apskel-pos-be/internal/contract"
+)
+
+func TestValidateProductRequestPrinterTypes(t *testing.T) {
+	v := NewProductValidator()
+	tooLong := strings.Repeat("a", 51)
+
+	create := baseCreateRequest()
+	create.PrinterTypes = []string{"kitchen", "bar"}
+	if err, _ := v.ValidateCreateProductRequest(create); err != nil {
+		t.Fatalf("kitchen and bar should be accepted, got: %v", err)
+	}
+
+	create.PrinterTypes = []string{"kitchen", tooLong}
+	if err, _ := v.ValidateCreateProductRequest(create); err == nil {
+		t.Fatal("expected an error for a printer longer than 50 characters")
+	}
+
+	err, _ := v.ValidateUpdateProductRequest(&contract.UpdateProductRequest{PrinterTypes: []string{tooLong}})
+	if err == nil {
+		t.Fatal("expected an error for a printer longer than 50 characters on update")
+	}
+
+	// An update that only changes the printers is a real update.
+	err, _ = v.ValidateUpdateProductRequest(&contract.UpdateProductRequest{PrinterTypes: []string{"kitchen", "bar"}})
+	if err != nil {
+		t.Fatalf("an update of only printer_types should be accepted, got: %v", err)
+	}
+}
@@ -13,4 +13,4 @@ DROP INDEX IF EXISTS uq_payment_methods_point_per_organization;

 ALTER TABLE payment_methods DROP CONSTRAINT IF EXISTS payment_methods_type_check;
 ALTER TABLE payment_methods ADD CONSTRAINT payment_methods_type_check
-    CHECK (type IN ('cash', 'card', 'digital_wallet'));
+    CHECK (type IN ('cash', 'card', 'digital_wallet', 'qr', 'edc', 'delivery'));
@@ -1,10 +1,11 @@
 -- Paying with EnakPoint (docs/prd-point-coin.md F9, §8, §10.5).

-- A new payment method type. Every organization has exactly one method of it, made by
+-- A new payment method type, next to the existing ones (edc and delivery were added to
+-- the constraint outside the migrations). Every organization has exactly one method of it, made by
 -- the system, which cannot be deleted or change type.
 ALTER TABLE payment_methods DROP CONSTRAINT IF EXISTS payment_methods_type_check;
 ALTER TABLE payment_methods ADD CONSTRAINT payment_methods_type_check
-    CHECK (type IN ('cash', 'card', 'digital_wallet', 'point'));
+    CHECK (type IN ('cash', 'card', 'digital_wallet', 'qr', 'edc', 'delivery', 'point'));

 CREATE UNIQUE INDEX uq_payment_methods_point_per_organization ON payment_methods(organization_id)
    WHERE type = 'point';
@@ -0,0 +1,2 @@
+-- Nothing to undo: 000094 now allows the same types.
+SELECT 1;
@@ -0,0 +1,7 @@
+-- Production also has edc and delivery payment methods, allowed by a constraint changed
+-- outside the migrations, and the code also accepts qr, which no constraint allowed.
+-- 000094 first rewrote the constraint without them, which
+-- failed on production and, where it ran, dropped them. Keep every type in use.
+ALTER TABLE payment_methods DROP CONSTRAINT IF EXISTS payment_methods_type_check;
+ALTER TABLE payment_methods ADD CONSTRAINT payment_methods_type_check
+    CHECK (type IN ('cash', 'card', 'digital_wallet', 'qr', 'edc', 'delivery', 'point'));
@@ -0,0 +1,8 @@
+-- Only the first printer fits back into printer_type; the extra stations are lost.
+ALTER TABLE products ADD COLUMN printer_type VARCHAR(50) DEFAULT 'kitchen';
+
+UPDATE products SET printer_type = COALESCE(printer_types->>0, '');
+
+CREATE INDEX idx_products_printer_type ON products(printer_type);
+
+ALTER TABLE products DROP COLUMN printer_types;
@@ -0,0 +1,12 @@
+-- A product can be prepared at more than one station: a meal-and-drink package goes to
+-- the kitchen and to the bar. printer_types replaces the single printer_type.
+ALTER TABLE products ADD COLUMN printer_types JSONB NOT NULL DEFAULT '["kitchen"]';
+
+UPDATE products
+SET printer_types = CASE
+    WHEN COALESCE(printer_type, '') = '' THEN '[]'::jsonb
+    ELSE jsonb_build_array(printer_type)
+END;
+
+-- Dropping the column drops idx_products_printer_type with it.
+ALTER TABLE products DROP COLUMN printer_type;
@@ -500,7 +500,7 @@
 						],
 						"body": {
 							"mode": "raw",
-							"raw": "{\n  \"name\": \"Cappuccino\",\n  \"description\": \"Classic Italian coffee drink\",\n  \"category_id\": \"{{category_id}}\",\n  \"sku\": \"CAP001\",\n  \"barcode\": \"1234567890123\",\n  \"price\": 4.50,\n  \"cost\": 1.20,\n  \"is_active\": true,\n  \"has_variants\": false,\n  \"image_url\": \"https://example.com/cappuccino.jpg\",\n  \"printer_type\": \"kitchen\"\n}"
+							"raw": "{\n  \"name\": \"Cappuccino\",\n  \"description\": \"Classic Italian coffee drink\",\n  \"category_id\": \"{{category_id}}\",\n  \"sku\": \"CAP001\",\n  \"barcode\": \"1234567890123\",\n  \"price\": 4.50,\n  \"cost\": 1.20,\n  \"is_active\": true,\n  \"has_variants\": false,\n  \"image_url\": \"https://example.com/cappuccino.jpg\",\n  \"printer_types\": [\"kitchen\"]\n}"
 						},
 						"url": {
 							"raw": "{{base_url}}/api/v1/products",
@@ -563,7 +563,7 @@
 						],
 						"body": {
 							"mode": "raw",
-							"raw": "{\n  \"name\": \"Premium Cappuccino\",\n  \"description\": \"Premium Italian coffee drink with extra foam\",\n  \"price\": 5.50,\n  \"cost\": 1.50,\n  \"is_active\": true,\n  \"image_url\": \"https://example.com/premium-cappuccino.jpg\",\n  \"printer_type\": \"kitchen\"\n}"
+							"raw": "{\n  \"name\": \"Premium Cappuccino\",\n  \"description\": \"Premium Italian coffee drink with extra foam\",\n  \"price\": 5.50,\n  \"cost\": 1.50,\n  \"is_active\": true,\n  \"image_url\": \"https://example.com/premium-cappuccino.jpg\",\n  \"printer_types\": [\"kitchen\"]\n}"
 						},
 						"url": {
 							"raw": "{{base_url}}/api/v1/products/{{product_id}}",
Author	SHA1	Message	Date
efrilm	b0ef226af1	feat: add printer types	2026-10-01 22:26:44 +07:00
efrilmandClaude Opus 5.5	892575202b	fix(orders): keep the customer a new order is created for CreateOrderContractToModel never copied customer_id, so every order from POST /orders was saved without a customer. Paying it then earned no EnakPoint or EnakCoin (skipped as NO_CUSTOMER, which is not logged). The customer must now belong to the order's organization, as SetOrderCustomer already requires: it is who earns once the order is paid, and orders.customer_id has no foreign key. A nil UUID means no customer. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-09-30 23:29:17 +07:00
efrilmandClaude Opus 5.5	c9654a387a	fix(migrations): keep every payment method type in use Production allows edc and delivery payment methods through a payment_methods_type_check changed outside the migrations, and has rows of both. 000094 rewrote the constraint with only cash, card, digital_wallet and point, so it failed on production (in its transaction, leaving the database dirty at 94 with nothing applied). 000094 now keeps edc and delivery, down included, and also allows qr, which the code accepts but no constraint did. 000098 sets the same list where the old 000094 already ran, as on staging. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-09-30 23:00:14 +07:00
aefril	e94eb2c26d	Merge pull request 'Staging' (#37 ) from staging into main Reviewed-on: https://gits.altru.id/apksel-dev/apskel-pos-backend/pulls/37	2026-09-30 17:39:27 +02:00
aefril	e8b31035f7	Merge pull request 'fix(docker): healthcheck the port the app listens on' (#36 ) from fix/dockerfile-healthcheck-port into staging Reviewed-on: https://gits.altru.id/apksel-dev/apskel-pos-backend/pulls/36	2026-09-30 17:37:40 +02:00