feat(loyalty): earn EnakPoint and EnakCoin when an order is paid

Adds earning at payment time (docs/prd-point-coin.md F3, PC-203).

An order becomes fully paid through UpdateOrder, CreatePayment and both
kinds of split bill. All of them now go through one OrderProcessorImpl
hook, onOrderPaid, called after the payment has committed; for
CreatePayment that is after its transaction, not from updateOrderStatus
inside it. The hook runs detached from the caller's transaction and from
the request being cancelled, and it runs synchronously so the order
response can show what was earned.

EarningProcessor.EarnForOrder skips orders that are not paid, are void,
have no customer, or whose customer is the walk-in customer or inactive.
It computes the earning with CalculateEarning, subtracting any part paid
with EnakPoint (none until phase 3), and credits each currency through the
wallet engine as EARN with key earn:{order_id}:{currency} and the settings
snapshot in metadata. A repeat, even concurrent, credits nothing more.
OnOrderPaid never fails the payment: errors and panics are logged.

EarningBackfillJob is the safety net: every 30 minutes it earns for orders
paid in the last three days that have no EARN row. It only looks at
outlets with earning switched on and pages by (updated_at, id), so orders
that correctly earned nothing cannot starve the ones that were missed.

Lots from earning never expire until the expiry model is decided (F12,
note N4). Adds the point payment method type constant, not yet accepted as
a payment method.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
efrilm
2026-09-30 10:40:05 +07:00
co-authored by Claude Opus 5.5
parent 5baed18b22
commit 78c0c11774
10 changed files with 959 additions and 2 deletions
+184
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@@ -0,0 +1,184 @@
package processor
import (
"context"
"fmt"
"time"
"github.com/google/uuid"
"apskel-pos-be/internal/constants"
"apskel-pos-be/internal/entities"
"apskel-pos-be/internal/logger"
"apskel-pos-be/internal/models"
"apskel-pos-be/internal/repository"
)
// Why an order earned nothing.
const (
EarningSkipNotPaid = "NOT_PAID"
EarningSkipVoid = "VOID"
EarningSkipNoCustomer = "NO_CUSTOMER"
EarningSkipDefaultCustomer = "DEFAULT_CUSTOMER"
EarningSkipInactiveCustomer = "INACTIVE_CUSTOMER"
EarningSkipNothingToEarn = "NOTHING_TO_EARN"
)
// EarningOutcome is what earning did for one order.
type EarningOutcome struct {
Points int64
Coins int64
// Set when the order earned nothing, to say why.
Skipped string
}
type outletSettingsReader interface {
Outlet(ctx context.Context, outletID uuid.UUID) (*models.OutletLoyaltySettings, error)
}
// EarningProcessor credits EnakPoint and EnakCoin for paid orders
// (docs/prd-point-coin.md F3).
type EarningProcessor struct {
orders repository.EarningRepository
settings outletSettingsReader
wallet *WalletProcessor
tx TxRunner
}
func NewEarningProcessor(orders repository.EarningRepository, settings outletSettingsReader, wallet *WalletProcessor, tx TxRunner) *EarningProcessor {
return &EarningProcessor{orders: orders, settings: settings, wallet: wallet, tx: tx}
}
// OnOrderPaid is called once an order has become fully paid and the payment has
// committed. It never fails the caller: a failed earning is logged and picked up later
// by EarnMissing, and the idempotency keys make that retry safe.
func (p *EarningProcessor) OnOrderPaid(ctx context.Context, orderID uuid.UUID) {
defer func() {
if r := recover(); r != nil {
logger.NonContext.Error(fmt.Sprintf("Earning for order %s panicked; it will be retried", orderID), fmt.Errorf("%v", r))
}
}()
if _, err := p.EarnForOrder(ctx, orderID); err != nil {
logger.NonContext.Error(fmt.Sprintf("Earning for order %s failed; it will be retried", orderID), err)
}
}
// EarnForOrder credits what a paid order earns. Calling it again for the same order
// credits nothing more.
func (p *EarningProcessor) EarnForOrder(ctx context.Context, orderID uuid.UUID) (*EarningOutcome, error) {
order, err := p.orders.GetOrderForEarning(ctx, orderID)
if err != nil {
return nil, err
}
if skip := earningSkipReason(order); skip != "" {
return &EarningOutcome{Skipped: skip}, nil
}
settings, err := p.settings.Outlet(ctx, order.OutletID)
if err != nil {
return nil, err
}
pointPaid, err := p.orders.PointPaidAmount(ctx, orderID)
if err != nil {
return nil, err
}
result := CalculateEarning(&entities.Order{Subtotal: order.Subtotal, DiscountAmount: order.DiscountAmount}, pointPaid, *settings)
if result.Point.Amount == 0 && result.Coin.Amount == 0 {
return &EarningOutcome{Skipped: EarningSkipNothingToEarn}, nil
}
outcome := &EarningOutcome{}
err = p.tx.WithTransaction(ctx, func(ctx context.Context) error {
for _, c := range []struct {
currency string
line EarningLine
total *int64
}{
{constants.WalletCurrencyPoint, result.Point, &outcome.Points},
{constants.WalletCurrencyCoin, result.Coin, &outcome.Coins},
} {
if c.line.Amount == 0 {
continue
}
outletID := order.OutletID
res, err := p.wallet.Credit(ctx, WalletCreditInput{WalletEntry: WalletEntry{
CustomerID: *order.CustomerID,
Currency: c.currency,
Type: constants.WalletTxTypeEarn,
Amount: c.line.Amount,
ReferenceType: constants.WalletRefTypeOrder,
ReferenceID: order.ID,
OutletID: &outletID,
Description: earningDescription(order),
Metadata: result.Metadata(c.line),
IdempotencyKey: fmt.Sprintf("earn:%s:%s", order.ID, c.currency),
// Lots never expire until the expiry model is decided (F12, note N4).
}})
if err != nil {
return fmt.Errorf("crediting %s: %w", c.currency, err)
}
*c.total = res.Transaction.Amount
}
return nil
})
if err != nil {
return nil, err
}
return outcome, nil
}
// EarnMissing is the safety net behind OnOrderPaid: it looks for orders paid since the
// given time that should have earned and have no EARN row, and earns for them. It
// returns how many orders it looked at and how many now earned. One order failing does
// not stop the others.
func (p *EarningProcessor) EarnMissing(ctx context.Context, since time.Time, maxOrders int) (checked, earned int, err error) {
const page = 200
var after *repository.EarningCursor
for checked < maxOrders {
batch, err := p.orders.ListPaidOrdersWithoutEarning(ctx, since, after, page)
if err != nil {
return checked, earned, err
}
if len(batch) == 0 {
break
}
for _, candidate := range batch {
checked++
outcome, err := p.EarnForOrder(ctx, candidate.ID)
if err != nil {
logger.NonContext.Error(fmt.Sprintf("Earning retry for order %s failed", candidate.ID), err)
continue
}
if outcome.Skipped == "" {
earned++
}
}
last := batch[len(batch)-1]
after = &last
}
return checked, earned, nil
}
func earningSkipReason(order *repository.EarningOrder) string {
switch {
case order.PaymentStatus != string(entities.PaymentStatusCompleted):
return EarningSkipNotPaid
case order.IsVoid:
return EarningSkipVoid
case order.CustomerID == nil || order.CustomerIsDefault == nil:
return EarningSkipNoCustomer
case *order.CustomerIsDefault:
return EarningSkipDefaultCustomer
case order.CustomerIsActive == nil || !*order.CustomerIsActive:
return EarningSkipInactiveCustomer
}
return ""
}
func earningDescription(order *repository.EarningOrder) string {
description := "Belanja #" + order.OrderNumber
if order.OutletName != "" {
description += " di " + order.OutletName
}
return truncateRunes(description, walletDescriptionLimit)
}
@@ -0,0 +1,221 @@
package processor
import (
"context"
"errors"
"os"
"sync"
"testing"
"time"
"github.com/google/uuid"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"gorm.io/driver/postgres"
"gorm.io/gorm"
"gorm.io/gorm/logger"
"apskel-pos-be/internal/models"
"apskel-pos-be/internal/repository"
)
// failingSettings fails for the outlet settings until healed, to stand in for the
// database being unreachable right after a payment.
type failingSettings struct {
real outletSettingsReader
mu sync.Mutex
fail bool
}
func (f *failingSettings) Outlet(ctx context.Context, outletID uuid.UUID) (*models.OutletLoyaltySettings, error) {
f.mu.Lock()
fail := f.fail
f.mu.Unlock()
if fail {
return nil, errors.New("connection refused")
}
return f.real.Outlet(ctx, outletID)
}
// Needs TEST_DATABASE_URL pointing at a migrated database; see
// internal/repository/wallet_repository_test.go.
func TestEarningProcessor_AgainstPostgres(t *testing.T) {
dsn := os.Getenv("TEST_DATABASE_URL")
if dsn == "" {
t.Skip("TEST_DATABASE_URL not set")
}
db, err := gorm.Open(postgres.Open(dsn), &gorm.Config{Logger: logger.Default.LogMode(logger.Silent)})
require.NoError(t, err)
ctx := context.Background()
org, user := uuid.New(), uuid.New()
earningOutlet, quietOutlet := uuid.New(), uuid.New()
regular, inactive := uuid.New(), uuid.New()
var walkIn uuid.UUID
var customers []uuid.UUID
exec := func(q string, args ...any) {
t.Helper()
require.NoError(t, db.Exec(q, args...).Error)
}
exec(`INSERT INTO organizations (id, name, plan_type) VALUES (?, 'earning test', 'basic')`, org)
exec(`INSERT INTO users (id, organization_id, name, email, password_hash, role) VALUES (?, ?, 'Kasir', ?, 'x', 'cashier')`, user, org, user.String()+"@test")
exec(`INSERT INTO outlets (id, organization_id, name) VALUES (?, ?, 'Kemang'), (?, ?, 'Tanpa Poin')`, earningOutlet, org, quietOutlet, org)
exec(`INSERT INTO customers (id, organization_id, name, is_default, is_active) VALUES
(?, ?, 'Budi', false, true), (?, ?, 'Nonaktif', false, false)`, regular, org, inactive, org)
// Creating the organization created its walk-in customer (trigger_create_default_customer).
var walkInID string
require.NoError(t, db.Raw(`SELECT id::text FROM customers WHERE organization_id = ? AND is_default`, org).Scan(&walkInID).Error)
walkIn = uuid.MustParse(walkInID)
customers = []uuid.UUID{regular, walkIn, inactive}
t.Cleanup(func() {
db.Exec(`DELETE FROM wallet_lot_allocations WHERE lot_id IN (SELECT id FROM wallet_lots WHERE customer_id IN ?)`, customers)
db.Exec(`DELETE FROM wallet_lots WHERE customer_id IN ?`, customers)
db.Exec(`DELETE FROM wallet_transactions WHERE customer_id IN ?`, customers)
db.Exec(`DELETE FROM customer_wallets WHERE customer_id IN ?`, customers)
db.Exec(`DELETE FROM orders WHERE organization_id = ?`, org)
db.Exec(`DELETE FROM loyalty_setting_changes WHERE organization_id = ?`, org)
db.Exec(`DELETE FROM outlet_settings WHERE outlet_id IN ?`, []uuid.UUID{earningOutlet, quietOutlet})
db.Exec(`DELETE FROM customers WHERE id IN ?`, customers)
db.Exec(`DELETE FROM outlets WHERE id IN ?`, []uuid.UUID{earningOutlet, quietOutlet})
db.Exec(`DELETE FROM users WHERE id = ?`, user)
db.Exec(`DELETE FROM organizations WHERE id = ?`, org)
})
txm := repository.NewTxManager(db)
settingsProcessor := NewLoyaltySettingsProcessor(repository.NewLoyaltySettingsRepository(db), txm)
outletSettings, err := settingsProcessor.Outlet(ctx, earningOutlet)
require.NoError(t, err)
outletSettings.Point.Enabled = true
outletSettings.Coin.Enabled = true
_, err = settingsProcessor.UpdateOutlet(ctx, org, earningOutlet, user, *outletSettings)
require.NoError(t, err)
settings := &failingSettings{real: settingsProcessor}
earning := NewEarningProcessor(repository.NewEarningRepository(db), settings, NewWalletProcessor(repository.NewWalletRepository(db)), txm)
orderNo := 0
newOrder := func(outlet uuid.UUID, customer *uuid.UUID, paymentStatus string, isVoid bool, subtotal, discount float64) uuid.UUID {
t.Helper()
orderNo++
id := uuid.New()
exec(`INSERT INTO orders (id, organization_id, outlet_id, user_id, customer_id, order_number, order_type,
subtotal, discount_amount, tax_amount, total_amount, payment_status, is_void)
VALUES (?, ?, ?, ?, ?, ?, 'dine_in', ?, ?, 0, ?, ?, ?)`,
id, org, outlet, user, customer, id.String()[:8]+"-"+string(rune('A'+orderNo)), subtotal, discount, subtotal-discount, paymentStatus, isVoid)
return id
}
earnRows := func(orderID uuid.UUID) map[string]int64 {
t.Helper()
var rows []struct {
Currency string
Amount int64
}
require.NoError(t, db.Raw(`SELECT currency, amount FROM wallet_transactions WHERE reference_id = ? AND type = 'EARN'`, orderID).Scan(&rows).Error)
out := map[string]int64{}
for _, r := range rows {
out[r.Currency] += r.Amount
}
return out
}
// Paid in full: the PRD example, 875 EnakPoint and 3 EnakCoin.
paid := newOrder(earningOutlet, &regular, "completed", false, 97500, 10000)
earning.OnOrderPaid(ctx, paid)
assert.Equal(t, map[string]int64{"POINT": 875, "COIN": 3}, earnRows(paid))
var row struct {
Description string
Metadata string
OutletID string
}
require.NoError(t, db.Raw(`SELECT description, metadata::text AS metadata, outlet_id::text AS outlet_id FROM wallet_transactions
WHERE reference_id = ? AND currency = 'POINT'`, paid).Scan(&row).Error)
assert.Contains(t, row.Description, "di Kemang")
assert.Contains(t, row.Metadata, `"earn_per_amount": 100`, "the settings used are frozen on the row")
assert.Contains(t, row.Metadata, `"basis": 87500`)
assert.Equal(t, earningOutlet.String(), row.OutletID)
// Called again, and five times at once, it is still one earning.
var wg sync.WaitGroup
for i := 0; i < 5; i++ {
wg.Add(1)
go func() { defer wg.Done(); earning.OnOrderPaid(ctx, paid) }()
}
wg.Wait()
outcome, err := earning.EarnForOrder(ctx, paid)
require.NoError(t, err)
assert.Equal(t, int64(875), outcome.Points, "a repeat reports the first earning")
assert.Equal(t, map[string]int64{"POINT": 875, "COIN": 3}, earnRows(paid))
// A self-order goes through the same payment path and the same rules.
selfOrder := newOrder(earningOutlet, &regular, "completed", false, 25000, 0)
earning.OnOrderPaid(ctx, selfOrder)
assert.Equal(t, map[string]int64{"POINT": 250, "COIN": 1}, earnRows(selfOrder))
// A split bill earns once, on the payment that settles it: while partial, nothing.
split := newOrder(earningOutlet, &regular, "partial", false, 60000, 0)
earning.OnOrderPaid(ctx, split)
assert.Empty(t, earnRows(split))
exec(`UPDATE orders SET payment_status = 'completed' WHERE id = ?`, split)
earning.OnOrderPaid(ctx, split)
assert.Equal(t, map[string]int64{"POINT": 600, "COIN": 2}, earnRows(split))
// Orders that must not earn.
for name, c := range map[string]struct {
id uuid.UUID
skip string
}{
"walk-in customer": {newOrder(earningOutlet, &walkIn, "completed", false, 50000, 0), EarningSkipDefaultCustomer},
"inactive customer": {newOrder(earningOutlet, &inactive, "completed", false, 50000, 0), EarningSkipInactiveCustomer},
"no customer": {newOrder(earningOutlet, nil, "completed", false, 50000, 0), EarningSkipNoCustomer},
"void": {newOrder(earningOutlet, &regular, "completed", true, 50000, 0), EarningSkipVoid},
"unpaid": {newOrder(earningOutlet, &regular, "pending", false, 50000, 0), EarningSkipNotPaid},
"outlet not earning": {newOrder(quietOutlet, &regular, "completed", false, 50000, 0), EarningSkipNothingToEarn},
} {
outcome, err := earning.EarnForOrder(ctx, c.id)
require.NoError(t, err, name)
assert.Equal(t, c.skip, outcome.Skipped, name)
assert.Empty(t, earnRows(c.id), name)
}
// An earning that fails does not surface to the payment, and the job picks it up.
settings.mu.Lock()
settings.fail = true
settings.mu.Unlock()
missed := newOrder(earningOutlet, &regular, "completed", false, 40000, 0)
assert.NotPanics(t, func() { earning.OnOrderPaid(ctx, missed) })
assert.Empty(t, earnRows(missed))
settings.mu.Lock()
settings.fail = false
settings.mu.Unlock()
since := time.Now().Add(-time.Hour)
checked, earned, err := earning.EarnMissing(ctx, since, 1000)
require.NoError(t, err)
assert.GreaterOrEqual(t, earned, 1)
assert.GreaterOrEqual(t, checked, earned)
assert.Equal(t, map[string]int64{"POINT": 400, "COIN": 1}, earnRows(missed))
// The job only looks at orders that could earn and have not.
candidates, err := repository.NewEarningRepository(db).ListPaidOrdersWithoutEarning(ctx, since, nil, 1000)
require.NoError(t, err)
var ours []uuid.UUID
for _, c := range candidates {
var n int64
db.Raw(`SELECT COUNT(*) FROM orders WHERE id = ? AND organization_id = ?`, c.ID, org).Scan(&n)
if n > 0 {
ours = append(ours, c.ID)
}
}
assert.Empty(t, ours, "every eligible order of ours has earned; walk-in, inactive, void, unpaid and non-earning outlets are never candidates")
// A second run finds nothing more to do for these orders.
_, _, err = earning.EarnMissing(ctx, since, 1000)
require.NoError(t, err)
assert.Equal(t, map[string]int64{"POINT": 400, "COIN": 1}, earnRows(missed))
balance := struct{ PointBalance, CoinBalance int64 }{}
require.NoError(t, db.Raw(`SELECT point_balance, coin_balance FROM customer_wallets WHERE customer_id = ?`, regular).Scan(&balance).Error)
assert.Equal(t, int64(875+250+600+400), balance.PointBalance)
assert.Equal(t, int64(3+1+2+1), balance.CoinBalance)
}
+181
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@@ -0,0 +1,181 @@
package processor
import (
"context"
"testing"
"github.com/google/uuid"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"apskel-pos-be/internal/entities"
"apskel-pos-be/internal/models"
"apskel-pos-be/internal/repository"
)
// These fakes embed the interface they stand for and implement only what the paths
// under test call; anything else would panic, which would show a path doing more than
// expected.
type hookOrderRepo struct {
OrderRepository
order *entities.Order
statusUpdates int
hookCallsAtPay int // hook calls seen when the status was written
hook *orderPaidHookFake
}
func (r *hookOrderRepo) GetByID(context.Context, uuid.UUID) (*entities.Order, error) {
o := *r.order
return &o, nil
}
func (r *hookOrderRepo) GetWithRelations(context.Context, uuid.UUID) (*entities.Order, error) {
o := *r.order
return &o, nil
}
func (r *hookOrderRepo) UpdateStatusSuccess(_ context.Context, _ uuid.UUID, status entities.OrderStatus, payment entities.PaymentStatus) error {
r.statusUpdates++
r.hookCallsAtPay = len(r.hook.calls)
r.order.Status, r.order.PaymentStatus = status, payment
return nil
}
type hookPaymentRepo struct {
PaymentRepository
created []*entities.Payment
}
func (r *hookPaymentRepo) GetTotalPaidByOrderID(context.Context, uuid.UUID) (float64, error) {
return 0, nil
}
func (r *hookPaymentRepo) Create(_ context.Context, p *entities.Payment) error {
p.ID = uuid.New()
r.created = append(r.created, p)
return nil
}
func (r *hookPaymentRepo) GetByID(_ context.Context, id uuid.UUID) (*entities.Payment, error) {
for _, p := range r.created {
if p.ID == id {
return p, nil
}
}
return nil, nil
}
func (r *hookPaymentRepo) GetByOrderID(context.Context, uuid.UUID) ([]*entities.Payment, error) {
return r.created, nil
}
type hookPaymentMethodRepo struct{}
func (hookPaymentMethodRepo) GetByID(_ context.Context, id uuid.UUID) (*entities.PaymentMethod, error) {
return &entities.PaymentMethod{ID: id}, nil
}
type hookOrderItemRepo struct{ OrderItemRepository }
func (hookOrderItemRepo) GetByOrderID(context.Context, uuid.UUID) ([]*entities.OrderItem, error) {
return nil, nil
}
// splitFake settles the order on the payment that covers what is left, as the real
// split bill processor does.
type splitFake struct{ settle bool }
func (f splitFake) split(order *entities.Order) (*models.SplitBillResponse, error) {
if f.settle {
order.PaymentStatus = entities.PaymentStatusCompleted
} else {
order.PaymentStatus = entities.PaymentStatusPartial
}
return &models.SplitBillResponse{OrderID: order.ID}, nil
}
func (f splitFake) SplitByAmount(_ context.Context, _ *models.SplitBillRequest, order *entities.Order, _ *entities.PaymentMethod, _ *entities.Customer) (*models.SplitBillResponse, error) {
return f.split(order)
}
func (f splitFake) SplitByItem(_ context.Context, _ *models.SplitBillRequest, order *entities.Order, _ *entities.PaymentMethod, _ *entities.Customer) (*models.SplitBillResponse, error) {
return f.split(order)
}
type orderPaidHookFake struct {
calls []uuid.UUID
ctxs []context.Context
}
func (h *orderPaidHookFake) OnOrderPaid(ctx context.Context, orderID uuid.UUID) {
h.calls = append(h.calls, orderID)
h.ctxs = append(h.ctxs, ctx)
}
func newHookedOrderProcessor(split SplitBillProcessor) (*OrderProcessorImpl, *hookOrderRepo, *orderPaidHookFake) {
hook := &orderPaidHookFake{}
orders := &hookOrderRepo{
order: &entities.Order{ID: uuid.New(), OrganizationID: uuid.New(), OutletID: uuid.New(), TotalAmount: 100000, PaymentStatus: entities.PaymentStatusPending},
hook: hook,
}
p := &OrderProcessorImpl{
orderRepo: orders,
orderItemRepo: hookOrderItemRepo{},
paymentRepo: &hookPaymentRepo{},
paymentMethodRepo: hookPaymentMethodRepo{},
splitBillProcessor: split,
txManager: repository.NewTxManager(nil),
}
p.SetOrderPaidHook(hook)
return p, orders, hook
}
func TestOrderPaidHook_CreatePayment(t *testing.T) {
p, orders, hook := newHookedOrderProcessor(nil)
ctx, cancel := context.WithCancel(context.Background())
_, err := p.CreatePayment(ctx, &models.CreatePaymentRequest{OrderID: orders.order.ID, PaymentMethodID: uuid.New(), Amount: 100000})
require.NoError(t, err)
assert.Equal(t, []uuid.UUID{orders.order.ID}, hook.calls)
assert.Zero(t, orders.hookCallsAtPay, "the hook runs after the payment, not inside its transaction")
// The hook's context outlives the request.
cancel()
assert.NoError(t, hook.ctxs[0].Err())
}
func TestOrderPaidHook_UpdateOrder(t *testing.T) {
p, orders, hook := newHookedOrderProcessor(nil)
_, err := p.UpdateOrder(context.Background(), orders.order.ID, &models.UpdateOrderRequest{})
require.NoError(t, err)
assert.Equal(t, []uuid.UUID{orders.order.ID}, hook.calls)
assert.Equal(t, 1, orders.statusUpdates)
assert.Zero(t, orders.hookCallsAtPay)
}
func TestOrderPaidHook_SplitBillOnlyOnTheSettlingPayment(t *testing.T) {
for _, splitType := range []string{"AMOUNT", "ITEM"} {
t.Run(splitType, func(t *testing.T) {
req := &models.SplitBillRequest{Type: splitType, PaymentMethodID: uuid.New()}
p, orders, hook := newHookedOrderProcessor(splitFake{settle: false})
req.OrderID = orders.order.ID
_, err := p.SplitBill(context.Background(), req)
require.NoError(t, err)
assert.Empty(t, hook.calls, "a partial split payment does not make the order paid")
p, orders, hook = newHookedOrderProcessor(splitFake{settle: true})
req.OrderID = orders.order.ID
_, err = p.SplitBill(context.Background(), req)
require.NoError(t, err)
assert.Equal(t, []uuid.UUID{orders.order.ID}, hook.calls)
})
}
}
func TestOrderPaidHook_NoHookIsFine(t *testing.T) {
p, orders, _ := newHookedOrderProcessor(nil)
p.SetOrderPaidHook(nil)
_, err := p.UpdateOrder(context.Background(), orders.order.ID, &models.UpdateOrderRequest{})
assert.NoError(t, err)
}
+31
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@@ -109,6 +109,30 @@ type OrderProcessorImpl struct {
ingredientRepo IngredientRepository
inventoryMovementService InventoryMovementService
productOutletPriceRepo repository.ProductOutletPriceRepository
orderPaidHook OrderPaidHook
}
// OrderPaidHook is told when an order has just become fully paid and the payment has
// committed. EarningProcessor is one (docs/prd-point-coin.md F3).
type OrderPaidHook interface {
OnOrderPaid(ctx context.Context, orderID uuid.UUID)
}
// SetOrderPaidHook sets what runs when an order becomes fully paid.
func (p *OrderProcessorImpl) SetOrderPaidHook(hook OrderPaidHook) {
p.orderPaidHook = hook
}
// onOrderPaid is the single place every path that completes an order's payment goes
// through: UpdateOrder, CreatePayment and both kinds of split bill. It must be called
// after the payment has committed. The hook runs detached from the caller's
// transaction and from the request being cancelled, and anything it does cannot fail
// the payment.
func (p *OrderProcessorImpl) onOrderPaid(ctx context.Context, orderID uuid.UUID) {
if p.orderPaidHook == nil {
return
}
p.orderPaidHook.OnOrderPaid(repository.DetachTransaction(context.WithoutCancel(ctx)), orderID)
}
func NewOrderProcessorImpl(
@@ -494,6 +518,7 @@ func (p *OrderProcessorImpl) UpdateOrder(ctx context.Context, id uuid.UUID, req
if err := p.orderRepo.UpdateStatusSuccess(ctx, order.ID, order.Status, order.PaymentStatus); err != nil {
return nil, fmt.Errorf("failed to update order: %w", err)
}
p.onOrderPaid(ctx, order.ID)
orderWithRelations, err := p.orderRepo.GetWithRelations(ctx, id)
if err != nil {
@@ -818,6 +843,8 @@ func (p *OrderProcessorImpl) CreatePayment(ctx context.Context, req *models.Crea
if err != nil {
return nil, err
}
// Not from updateOrderStatus: that runs inside the payment's transaction.
p.onOrderPaid(ctx, req.OrderID)
paymentWithRelations, err := p.paymentRepo.GetByID(ctx, payment.ID)
if err != nil {
@@ -1207,6 +1234,10 @@ func (p *OrderProcessorImpl) SplitBill(ctx context.Context, req *models.SplitBil
if err != nil {
return nil, err
}
// Both split paths mark the order paid on the payment that settles it.
if order.PaymentStatus == entities.PaymentStatusCompleted {
p.onOrderPaid(ctx, order.ID)
}
return response, nil
}