Add get_budget implementation

.gitignore

@@ -8,6 +8,7 @@ nostr-wallet-connect
 nwc.db
 .breez
 .data
+.idea
 
 frontend/dist
 frontend/node_modules
@@ -21,6 +22,7 @@ build/bin
 # generated by platform-specific files
 frontend/src/utils/request.ts
 frontend/src/utils/openLink.ts
+frontend/.yarn
 
 # generated by rust go bindings for local development
 glalby

db/queries/get_budget_usage.go

@@ -42,3 +42,26 @@ func getStartOfBudget(budget_type string) time.Time {
 		return time.Time{}
 	}
 }
+
+func GetBudgetRenewsAt(budgetRenewal string) *uint64 {
+	budgetStart := getStartOfBudget(budgetRenewal)
+	switch budgetRenewal {
+	case constants.BUDGET_RENEWAL_DAILY:
+		renewal := uint64(budgetStart.AddDate(0, 0, 1).Unix())
+		return &renewal
+	case constants.BUDGET_RENEWAL_WEEKLY:
+		renewal := uint64(budgetStart.AddDate(0, 0, 7).Unix())
+		return &renewal
+
+	case constants.BUDGET_RENEWAL_MONTHLY:
+		renewal := uint64(budgetStart.AddDate(0, 1, 0).Unix())
+		return &renewal
+
+	case constants.BUDGET_RENEWAL_YEARLY:
+		renewal := uint64(budgetStart.AddDate(1, 0, 0).Unix())
+		return &renewal
+
+	default: //"never"
+		return nil
+	}
+}

frontend/src/types.ts

@@ -21,6 +21,7 @@ export type BackendType =
 export type Nip47RequestMethod =
   | "get_info"
   | "get_balance"
+  | "get_budget"
   | "make_invoice"
   | "pay_invoice"
   | "pay_keysend"

lnclient/breez/breez.go

@@ -478,7 +478,7 @@ func (bs *BreezService) DisconnectPeer(ctx context.Context, peerId string) error
 }
 
 func (bs *BreezService) GetSupportedNIP47Methods() []string {
-	return []string{"pay_invoice" /*"pay_keysend",*/, "get_balance", "get_info", "make_invoice", "lookup_invoice", "list_transactions", "multi_pay_invoice", "multi_pay_keysend", "sign_message"}
+	return []string{"pay_invoice" /*"pay_keysend",*/, "get_balance", "get_budget", "get_info", "make_invoice", "lookup_invoice", "list_transactions", "multi_pay_invoice", "multi_pay_keysend", "sign_message"}
 }
 
 func (bs *BreezService) GetSupportedNIP47NotificationTypes() []string {

lnclient/cashu/cashu.go

@@ -358,7 +358,7 @@ func (cs *CashuService) checkInvoice(cashuInvoice *storage.Invoice) {
 }
 
 func (cs *CashuService) GetSupportedNIP47Methods() []string {
-	return []string{"pay_invoice", "get_balance", "get_info", "make_invoice", "lookup_invoice", "list_transactions", "multi_pay_invoice"}
+	return []string{"pay_invoice", "get_balance", "get_budget", "get_info", "make_invoice", "lookup_invoice", "list_transactions", "multi_pay_invoice"}
 }
 
 func (cs *CashuService) GetSupportedNIP47NotificationTypes() []string {

lnclient/greenlight/greenlight.go

@@ -674,7 +674,7 @@ func (gs *GreenlightService) DisconnectPeer(ctx context.Context, peerId string)
 }
 
 func (gs *GreenlightService) GetSupportedNIP47Methods() []string {
-	return []string{"pay_invoice" /*"pay_keysend",*/, "get_balance", "get_info", "make_invoice", "lookup_invoice", "list_transactions", "multi_pay_invoice", "multi_pay_keysend", "sign_message"}
+	return []string{"pay_invoice" /*"pay_keysend",*/, "get_balance", "get_budget", "get_info", "make_invoice", "lookup_invoice", "list_transactions", "multi_pay_invoice", "multi_pay_keysend", "sign_message"}
 }
 
 func (gs *GreenlightService) GetSupportedNIP47NotificationTypes() []string {

lnclient/ldk/ldk.go

@@ -1631,7 +1631,7 @@ func (ls *LDKService) UpdateLastWalletSyncRequest() {
 }
 
 func (ls *LDKService) GetSupportedNIP47Methods() []string {
-	return []string{"pay_invoice", "pay_keysend", "get_balance", "get_info", "make_invoice", "lookup_invoice", "list_transactions", "multi_pay_invoice", "multi_pay_keysend", "sign_message"}
+	return []string{"pay_invoice", "pay_keysend", "get_balance", "get_budget", "get_info", "make_invoice", "lookup_invoice", "list_transactions", "multi_pay_invoice", "multi_pay_keysend", "sign_message"}
 }
 
 func (ls *LDKService) GetSupportedNIP47NotificationTypes() []string {

lnclient/lnd/lnd.go

@@ -1084,7 +1084,7 @@ func (svc *LNDService) DisconnectPeer(ctx context.Context, peerId string) error
 
 func (svc *LNDService) GetSupportedNIP47Methods() []string {
 	return []string{
-		"pay_invoice", "pay_keysend", "get_balance", "get_info", "make_invoice", "lookup_invoice", "list_transactions", "multi_pay_invoice", "multi_pay_keysend", "sign_message",
+		"pay_invoice", "pay_keysend", "get_balance", "get_budget", "get_info", "make_invoice", "lookup_invoice", "list_transactions", "multi_pay_invoice", "multi_pay_keysend", "sign_message",
 	}
 }
 

lnclient/phoenixd/phoenixd.go

@@ -525,7 +525,7 @@ func (svc *PhoenixService) UpdateChannel(ctx context.Context, updateChannelReque
 }
 
 func (svc *PhoenixService) GetSupportedNIP47Methods() []string {
-	return []string{"pay_invoice", "get_balance", "get_info", "make_invoice", "lookup_invoice", "list_transactions", "multi_pay_invoice"}
+	return []string{"pay_invoice", "get_balance", "get_budget", "get_info", "make_invoice", "lookup_invoice", "list_transactions", "multi_pay_invoice"}
 }
 
 func (svc *PhoenixService) GetSupportedNIP47NotificationTypes() []string {

nip47/controllers/get_budget_controller.go

@@ -0,0 +1,52 @@
+package controllers
+
+import (
+	"context"
+
+	"github.com/getAlby/hub/db/queries"
+	"github.com/nbd-wtf/go-nostr"
+
+	"github.com/getAlby/hub/db"
+	"github.com/getAlby/hub/logger"
+	"github.com/getAlby/hub/nip47/models"
+	"github.com/sirupsen/logrus"
+)
+
+type getBudgetResponse struct {
+	UsedBudget    uint64  `json:"used_budget"`
+	TotalBudget   uint64  `json:"total_budget"`
+	RenewsAt      *uint64 `json:"renews_at,omitempty"`
+	RenewalPeriod string  `json:"renewal_period"`
+}
+
+func (controller *nip47Controller) HandleGetBudgetEvent(ctx context.Context, nip47Request *models.Request, requestEventId uint, app *db.App, publishResponse publishFunc) {
+
+	logger.Logger.WithFields(logrus.Fields{
+		"request_event_id": requestEventId,
+	}).Debug("Getting budget")
+
+	appPermission := db.AppPermission{}
+	controller.db.Where("app_id = ? AND scope = ?", app.ID, models.PAY_INVOICE_METHOD).First(&appPermission)
+
+	maxAmount := appPermission.MaxAmountSat
+	if maxAmount == 0 {
+		publishResponse(&models.Response{
+			ResultType: nip47Request.Method,
+			Result:     struct{}{},
+		}, nostr.Tags{})
+		return
+	}
+
+	usedBudget := queries.GetBudgetUsageSat(controller.db, &appPermission)
+	responsePayload := &getBudgetResponse{
+		TotalBudget:   uint64(maxAmount * 1000),
+		UsedBudget:    usedBudget * 1000,
+		RenewalPeriod: appPermission.BudgetRenewal,
+		RenewsAt:      queries.GetBudgetRenewsAt(appPermission.BudgetRenewal),
+	}
+
+	publishResponse(&models.Response{
+		ResultType: nip47Request.Method,
+		Result:     responsePayload,
+	}, nostr.Tags{})
+}