Reapply "feat(loyalty): EnakPoint & EnakCoin" (#32)
This reverts commit 4e24f9bbb0.
This commit is contained in:
efrilm
@@ -0,0 +1,233 @@
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package processor
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import (
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"context"
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"errors"
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"os"
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"sync"
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"testing"
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"time"
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"github.com/google/uuid"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"gorm.io/driver/postgres"
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"gorm.io/gorm"
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"gorm.io/gorm/logger"
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"apskel-pos-be/internal/models"
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"apskel-pos-be/internal/repository"
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)
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// failingSettings fails for the outlet settings until healed, to stand in for the
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// database being unreachable right after a payment.
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type failingSettings struct {
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real earningSettingsReader
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mu sync.Mutex
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fail bool
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}
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func (f *failingSettings) Outlet(ctx context.Context, outletID uuid.UUID) (*models.OutletLoyaltySettings, error) {
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f.mu.Lock()
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fail := f.fail
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f.mu.Unlock()
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if fail {
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return nil, errors.New("connection refused")
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}
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return f.real.Outlet(ctx, outletID)
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}
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// Needs TEST_DATABASE_URL pointing at a migrated database; see
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// internal/repository/wallet_repository_test.go.
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func TestEarningProcessor_AgainstPostgres(t *testing.T) {
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dsn := os.Getenv("TEST_DATABASE_URL")
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if dsn == "" {
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t.Skip("TEST_DATABASE_URL not set")
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}
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db, err := gorm.Open(postgres.Open(dsn), &gorm.Config{Logger: logger.Default.LogMode(logger.Silent)})
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require.NoError(t, err)
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ctx := context.Background()
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org, user := uuid.New(), uuid.New()
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earningOutlet, quietOutlet := uuid.New(), uuid.New()
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regular, inactive := uuid.New(), uuid.New()
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var walkIn uuid.UUID
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var customers []uuid.UUID
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exec := func(q string, args ...any) {
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t.Helper()
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require.NoError(t, db.Exec(q, args...).Error)
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}
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exec(`INSERT INTO organizations (id, name, plan_type) VALUES (?, 'earning test', 'basic')`, org)
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exec(`INSERT INTO users (id, organization_id, name, email, password_hash, role) VALUES (?, ?, 'Kasir', ?, 'x', 'cashier')`, user, org, user.String()+"@test")
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exec(`INSERT INTO outlets (id, organization_id, name) VALUES (?, ?, 'Kemang'), (?, ?, 'Tanpa Poin')`, earningOutlet, org, quietOutlet, org)
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exec(`INSERT INTO customers (id, organization_id, name, is_default, is_active) VALUES
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(?, ?, 'Budi', false, true), (?, ?, 'Nonaktif', false, false)`, regular, org, inactive, org)
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// Creating the organization created its walk-in customer (trigger_create_default_customer).
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var walkInID string
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require.NoError(t, db.Raw(`SELECT id::text FROM customers WHERE organization_id = ? AND is_default`, org).Scan(&walkInID).Error)
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walkIn = uuid.MustParse(walkInID)
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customers = []uuid.UUID{regular, walkIn, inactive}
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t.Cleanup(func() {
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db.Exec(`DELETE FROM wallet_lot_allocations WHERE lot_id IN (SELECT id FROM wallet_lots WHERE customer_id IN ?)`, customers)
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db.Exec(`DELETE FROM wallet_lots WHERE customer_id IN ?`, customers)
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db.Exec(`DELETE FROM wallet_transactions WHERE customer_id IN ?`, customers)
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db.Exec(`DELETE FROM customer_wallets WHERE customer_id IN ?`, customers)
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db.Exec(`DELETE FROM orders WHERE organization_id = ?`, org)
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db.Exec(`DELETE FROM loyalty_setting_changes WHERE organization_id = ?`, org)
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db.Exec(`DELETE FROM outlet_settings WHERE outlet_id IN ?`, []uuid.UUID{earningOutlet, quietOutlet})
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db.Exec(`DELETE FROM customers WHERE id IN ?`, customers)
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db.Exec(`DELETE FROM outlets WHERE id IN ?`, []uuid.UUID{earningOutlet, quietOutlet})
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db.Exec(`DELETE FROM users WHERE id = ?`, user)
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db.Exec(`DELETE FROM organizations WHERE id = ?`, org)
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})
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txm := repository.NewTxManager(db)
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settingsProcessor := NewLoyaltySettingsProcessor(repository.NewLoyaltySettingsRepository(db), txm)
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outletSettings, err := settingsProcessor.Outlet(ctx, earningOutlet)
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require.NoError(t, err)
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outletSettings.Point.Enabled = true
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outletSettings.Coin.Enabled = true
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_, err = settingsProcessor.UpdateOutlet(ctx, org, earningOutlet, user, *outletSettings)
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require.NoError(t, err)
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settings := &failingSettings{real: settingsProcessor}
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earning := NewEarningProcessor(repository.NewEarningRepository(db), settings, NewWalletProcessor(repository.NewWalletRepository(db)), txm)
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orderNo := 0
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newOrder := func(outlet uuid.UUID, customer *uuid.UUID, paymentStatus string, isVoid bool, subtotal, discount float64) uuid.UUID {
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t.Helper()
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orderNo++
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id := uuid.New()
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exec(`INSERT INTO orders (id, organization_id, outlet_id, user_id, customer_id, order_number, order_type,
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subtotal, discount_amount, tax_amount, total_amount, payment_status, is_void)
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VALUES (?, ?, ?, ?, ?, ?, 'dine_in', ?, ?, 0, ?, ?, ?)`,
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id, org, outlet, user, customer, id.String()[:8]+"-"+string(rune('A'+orderNo)), subtotal, discount, subtotal-discount, paymentStatus, isVoid)
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return id
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}
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earnRows := func(orderID uuid.UUID) map[string]int64 {
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t.Helper()
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var rows []struct {
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Currency string
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Amount int64
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}
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require.NoError(t, db.Raw(`SELECT currency, amount FROM wallet_transactions WHERE reference_id = ? AND type = 'EARN'`, orderID).Scan(&rows).Error)
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out := map[string]int64{}
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for _, r := range rows {
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out[r.Currency] += r.Amount
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}
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return out
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}
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// Paid in full: the PRD example, 875 EnakPoint and 3 EnakCoin.
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paid := newOrder(earningOutlet, ®ular, "completed", false, 97500, 10000)
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earning.OnOrderPaid(ctx, paid)
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assert.Equal(t, map[string]int64{"POINT": 875, "COIN": 3}, earnRows(paid))
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var row struct {
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Description string
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Metadata string
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OutletID string
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}
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require.NoError(t, db.Raw(`SELECT description, metadata::text AS metadata, outlet_id::text AS outlet_id FROM wallet_transactions
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WHERE reference_id = ? AND currency = 'POINT'`, paid).Scan(&row).Error)
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assert.Contains(t, row.Description, "di Kemang")
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assert.Contains(t, row.Metadata, `"earn_per_amount": 100`, "the settings used are frozen on the row")
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assert.Contains(t, row.Metadata, `"basis": 87500`)
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assert.Equal(t, earningOutlet.String(), row.OutletID)
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// Called again, and five times at once, it is still one earning.
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var wg sync.WaitGroup
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for i := 0; i < 5; i++ {
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wg.Add(1)
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go func() { defer wg.Done(); earning.OnOrderPaid(ctx, paid) }()
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}
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wg.Wait()
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outcome, err := earning.EarnForOrder(ctx, paid)
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require.NoError(t, err)
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assert.Equal(t, int64(875), outcome.Points, "a repeat reports the first earning")
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assert.Equal(t, map[string]int64{"POINT": 875, "COIN": 3}, earnRows(paid))
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// A self-order goes through the same payment path and the same rules.
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selfOrder := newOrder(earningOutlet, ®ular, "completed", false, 25000, 0)
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earning.OnOrderPaid(ctx, selfOrder)
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assert.Equal(t, map[string]int64{"POINT": 250, "COIN": 1}, earnRows(selfOrder))
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// A split bill earns once, on the payment that settles it: while partial, nothing.
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split := newOrder(earningOutlet, ®ular, "partial", false, 60000, 0)
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earning.OnOrderPaid(ctx, split)
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assert.Empty(t, earnRows(split))
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exec(`UPDATE orders SET payment_status = 'completed' WHERE id = ?`, split)
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earning.OnOrderPaid(ctx, split)
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assert.Equal(t, map[string]int64{"POINT": 600, "COIN": 2}, earnRows(split))
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// Orders that must not earn.
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for name, c := range map[string]struct {
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id uuid.UUID
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skip string
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}{
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"walk-in customer": {newOrder(earningOutlet, &walkIn, "completed", false, 50000, 0), EarningSkipDefaultCustomer},
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"inactive customer": {newOrder(earningOutlet, &inactive, "completed", false, 50000, 0), EarningSkipInactiveCustomer},
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"no customer": {newOrder(earningOutlet, nil, "completed", false, 50000, 0), EarningSkipNoCustomer},
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"void": {newOrder(earningOutlet, ®ular, "completed", true, 50000, 0), EarningSkipVoid},
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"unpaid": {newOrder(earningOutlet, ®ular, "pending", false, 50000, 0), EarningSkipNotPaid},
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"outlet not earning": {newOrder(quietOutlet, ®ular, "completed", false, 50000, 0), EarningSkipNothingToEarn},
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} {
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outcome, err := earning.EarnForOrder(ctx, c.id)
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require.NoError(t, err, name)
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assert.Equal(t, c.skip, outcome.Skipped, name)
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assert.Empty(t, earnRows(c.id), name)
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}
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// An earning that fails does not surface to the payment, and the job picks it up.
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settings.mu.Lock()
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settings.fail = true
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settings.mu.Unlock()
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missed := newOrder(earningOutlet, ®ular, "completed", false, 40000, 0)
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assert.NotPanics(t, func() { earning.OnOrderPaid(ctx, missed) })
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assert.Empty(t, earnRows(missed))
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settings.mu.Lock()
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settings.fail = false
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settings.mu.Unlock()
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since := time.Now().Add(-time.Hour)
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checked, earned, err := earning.EarnMissing(ctx, since, 1000)
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require.NoError(t, err)
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assert.GreaterOrEqual(t, earned, 1)
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assert.GreaterOrEqual(t, checked, earned)
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assert.Equal(t, map[string]int64{"POINT": 400, "COIN": 1}, earnRows(missed))
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// The job only looks at orders that could earn and have not.
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candidates, err := repository.NewEarningRepository(db).ListPaidOrdersWithoutEarning(ctx, since, nil, 1000)
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require.NoError(t, err)
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var ours []uuid.UUID
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for _, c := range candidates {
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var n int64
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db.Raw(`SELECT COUNT(*) FROM orders WHERE id = ? AND organization_id = ?`, c.ID, org).Scan(&n)
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if n > 0 {
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ours = append(ours, c.ID)
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}
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}
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assert.Empty(t, ours, "every eligible order of ours has earned; walk-in, inactive, void, unpaid and non-earning outlets are never candidates")
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// A second run finds nothing more to do for these orders.
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_, _, err = earning.EarnMissing(ctx, since, 1000)
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require.NoError(t, err)
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assert.Equal(t, map[string]int64{"POINT": 400, "COIN": 1}, earnRows(missed))
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// What the order screen and receipt show is what the ledger has.
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shown, err := earning.EarnedByOrders(ctx, []uuid.UUID{paid, split, missed, uuid.New()})
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require.NoError(t, err)
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assert.Equal(t, OrderEarned{Points: 875, Coins: 3}, shown[paid])
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assert.Equal(t, OrderEarned{Points: 600, Coins: 2}, shown[split])
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assert.Equal(t, OrderEarned{Points: 400, Coins: 1}, shown[missed])
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assert.Len(t, shown, 3, "an order without earning is absent, so it shows 0")
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balance := struct{ PointBalance, CoinBalance int64 }{}
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require.NoError(t, db.Raw(`SELECT point_balance, coin_balance FROM customer_wallets WHERE customer_id = ?`, regular).Scan(&balance).Error)
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assert.Equal(t, int64(875+250+600+400), balance.PointBalance)
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assert.Equal(t, int64(3+1+2+1), balance.CoinBalance)
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}
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func (f *failingSettings) Organization(ctx context.Context, organizationID uuid.UUID) (*models.OrganizationLoyaltySettings, error) {
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return f.real.Organization(ctx, organizationID)
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}
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