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feat(loyalty): one-time EnakPoint payment code

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Adds POST /customer/wallet/payment-code (docs/prd-point-coin.md F9, K8,
PC-304). The customer approves with their PIN on their own phone and gets a
6-digit code, as digits and as a QR payload (enakpoint:<code>) for the app
to render, valid for two minutes. The PIN is never typed at the cashier.

Codes are drawn from crypto/rand and stored in Redis with SET NX and a TTL,
bound to the customer; a new code retires the previous one. Redeeming is a
single Lua step that uses the code up only if it belongs to the order's
customer, so it stays one-time under a race, and a cashier scanning it
against the wrong order does not burn it for its owner, which a plain
GETDEL would. Expired, used, unknown and other customers' codes are all
refused alike.

Tests run against miniredis, added as a test dependency.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
efrilm
2026-09-30 11:37:20 +07:00
co-authored by Claude Opus 5.5
parent cf5332c281
commit 0c4dd72583
12 changed files with 393 additions and 4 deletions
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internal/app/app.go
+4 -1
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@@ -388,6 +388,7 @@ type processors struct {
loyaltySettingsProcessor *processor.LoyaltySettingsProcessor
earningProcessor *processor.EarningProcessor
customerPinProcessor *processor.CustomerPinProcessor
paymentCodeProcessor *processor.PaymentCodeProcessor
}
func (a *App) initProcessors(cfg *config.Config, repos *repositories) *processors {
@@ -396,6 +397,7 @@ func (a *App) initProcessors(cfg *config.Config, repos *repositories) *processor
otpProcessor := processor.NewOtpProcessor(fonnteClient, repos.otpRepo)
// Customer PIN (docs/prd-point-coin.md F11)
customerPinProcessor := processor.NewCustomerPinProcessor(repository.NewCustomerPinRepository(a.db), otpProcessor, otpProcessor)
paymentCodeProcessor := processor.NewPaymentCodeProcessor(repository.NewPaymentCodeRepository(a.redisClient), customerPinProcessor)
inventoryMovementService := service.NewInventoryMovementService(repos.inventoryMovementRepo, repos.ingredientRepo)
orderProcessor := processor.NewOrderProcessorImpl(repos.orderRepo, repos.orderItemRepo, repos.paymentRepo, repos.paymentOrderItemRepo, repos.productRepo, repos.paymentMethodRepo, repos.inventoryRepo, repos.inventoryMovementRepo, repos.productVariantRepo, repos.outletRepo, repos.customerRepo, repos.txManager, repos.productRecipeRepo, repos.ingredientRepo, inventoryMovementService, repos.productOutletPriceRepo)
@@ -453,6 +455,7 @@ func (a *App) initProcessors(cfg *config.Config, repos *repositories) *processor
loyaltySettingsProcessor: loyaltySettingsProcessor,
earningProcessor: earningProcessor,
customerPinProcessor: customerPinProcessor,
paymentCodeProcessor: paymentCodeProcessor,
walletAdminProcessor: processor.NewWalletAdminProcessor(repository.NewWalletAdminRepository(a.db), repos.walletQueryRepo, processor.NewWalletProcessor(repos.walletRepo), repos.txManager),
}
}
@@ -582,7 +585,7 @@ func (a *App) initServices(processors *processors, repos *repositories, cfg *con
cashAdvanceService: service.NewCashAdvanceService(processors.cashAdvanceProcessor),
walletAdminService: service.NewWalletAdminService(processors.walletAdminProcessor),
loyaltySettingsService: service.NewLoyaltySettingsService(processors.loyaltySettingsProcessor, repos.walletQueryRepo),
customerPinService: service.NewCustomerPinService(processors.customerPinProcessor),
customerPinService: service.NewCustomerPinService(processors.customerPinProcessor, processors.paymentCodeProcessor),
}
}