Add fetchtransactions part of token event handle

.env.example

@@ -0,0 +1,21 @@
+#Serve Http
+PORT=7123
+HOST=127.0.0.1
+
+#PostgreSQL
+DB_HOST=localhost
+DB_USER=postgres
+#DB_PASSWORD=strongpass
+#DB_NAME=urdt_ussd
+DB_NAME=visedb3
+DB_PORT=5432
+DB_SSLMODE=disable
+DB_TIMEZONE=Africa/Nairobi
+#DB_SCHEMA=vvise
+
+#External API Calls
+#CREATE_ACCOUNT_URL=/api/account/create
+#TRACK_STATUS_URL=/api/track/
+#BALANCE_URL=/api/account/status/
+#CUSTODIAL_URL_BASE=http://localhost:5003
+#DATA_URL_BASE=http://localhost:5006

.gitignore

@@ -0,0 +1,2 @@
+.env
+main

cmd/main.go

@@ -7,15 +7,31 @@ import (
 	"os/signal"
 	"syscall"
 
+	"git.defalsify.org/vise.git/db/mem"
+
+	"git.grassecon.net/urdt/ussd/config"
+	"git.grassecon.net/urdt/ussd/initializers"
 	"git.grassecon.net/term/event/nats"
 )
 
+func init() {
+	initializers.LoadEnvVariables()
+}
+
 func main() {
+	config.LoadConfig()
+
 	ctx := context.Background()
-	n := nats.NewNatsSubscription()
+	db := mem.NewMemDb()
-	err := n.Connect(ctx, "localhost:4222")
+	err := db.Connect(ctx, "")
 	if err != nil {
-		fmt.Fprintf(os.Stderr, "Connect err: %v", err)
+		fmt.Fprintf(os.Stderr, "Db connect err: %v", err)
+		os.Exit(1)
+	}
+	n := nats.NewNatsSubscription(db)
+	err = n.Connect(ctx, "localhost:4222")
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Stream connect err: %v", err)
 		os.Exit(1)
 	}
 	defer n.Close()

event/custodial_registration.go

@@ -1,7 +1,12 @@
 package event
 
 import (
+	"context"
+
 	geEvent "github.com/grassrootseconomics/eth-tracker/pkg/event"
+
+	"git.grassecon.net/urdt/ussd/common"
+	"git.grassecon.net/term/lookup"
 )
 
 const (
@@ -9,7 +14,7 @@ const (
 )
 
 type eventCustodialRegistration struct {
-	account string
+	Account string
 }
 
 func asCustodialRegistrationEvent(gev *geEvent.Event) (*eventCustodialRegistration, bool) {
@@ -19,7 +24,7 @@ func asCustodialRegistrationEvent(gev *geEvent.Event) (*eventCustodialRegistrati
 		return nil, false
 	}
 	pl := gev.Payload
-	ev.account, ok = pl["account"].(string)
+	ev.Account, ok = pl["account"].(string)
 	if !ok {
 		return nil, false
 	}
@@ -27,6 +32,11 @@ func asCustodialRegistrationEvent(gev *geEvent.Event) (*eventCustodialRegistrati
 	return &ev, true
 }
 
-func handleCustodialRegistration(ev *eventCustodialRegistration) error {
+func handleCustodialRegistration(ctx context.Context, store *common.UserDataStore, ev *eventCustodialRegistration) error {
+	identity, err := lookup.IdentityFromAddress(ctx, store, ev.Account)
+	if err != nil {
+		return err
+	}
+	_ = identity
 	return nil
 }

event/nats/nats.go

@@ -8,9 +8,9 @@ import (
 
 	nats "github.com/nats-io/nats.go"
 	"github.com/nats-io/nats.go/jetstream"
-
 	geEvent "github.com/grassrootseconomics/eth-tracker/pkg/event"
-
+	"git.defalsify.org/vise.git/db"
+	"git.grassecon.net/urdt/ussd/common"
 	"git.grassecon.net/term/event"
 )
 
@@ -27,8 +27,14 @@ type NatsSubscription struct {
 	cctx jetstream.ConsumeContext
 }
 
-func NewNatsSubscription() *NatsSubscription {
+func NewNatsSubscription(store db.Db) *NatsSubscription {
-	return &NatsSubscription{}
+	return &NatsSubscription{
+		Router: event.Router{
+			Store: &common.UserDataStore{
+				Db: store,
+			},
+		},
+	}
 }
 
 func(n *NatsSubscription) Connect(ctx context.Context, connStr string) error {
@@ -86,7 +92,7 @@ func(n *NatsSubscription) handleEvent(m jetstream.Msg) {
 		logg.Error("nats msg deserialize fail", "err", err)
 		//fail(m)
 	} else {
-		err = n.Route(&ev)
+		err = n.Route(n.ctx, &ev)
 		if err != nil {
 			logg.Error("handler route fail", "err", err)
 			//fail(m)

event/route.go

@@ -1,10 +1,13 @@
 package event
 
 import (
+	"context"
 	"fmt"
 	"log/slog"
 	"os"
 
+	"git.grassecon.net/urdt/ussd/common"
+
 	geEvent "github.com/grassrootseconomics/eth-tracker/pkg/event"
 )
 
@@ -18,13 +21,14 @@ var (
 )
 
 type Router struct {
+	Store *common.UserDataStore
 }
 
-func(r *Router) Route(gev *geEvent.Event) error {
+func(r *Router) Route(ctx context.Context, gev *geEvent.Event) error {
 	logg.Debug("have event", "ev", gev)
 	evCC, ok := asCustodialRegistrationEvent(gev)
 	if ok {
-		return handleCustodialRegistration(evCC)
+		return handleCustodialRegistration(ctx, r.Store, evCC)
 	}
 	return fmt.Errorf("unexpected message")
 }

event/token.go

@@ -0,0 +1,156 @@
+package event
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"git.defalsify.org/vise.git/db"
+	"git.grassecon.net/urdt/ussd/common"
+	"git.grassecon.net/urdt/ussd/remote"
+	"git.grassecon.net/term/lookup"
+)
+
+const (
+	evTransfer = "TOKEN_TRANSFER"
+	// TODO: use export from urdt storage
+	DATATYPE_USERSUB = 64
+)
+
+func renderTx() {
+
+}
+
+type eventTokenTransfer struct {
+	From string
+	To string
+	Value string
+}
+
+func updateTokenTransferList(ctx context.Context, api remote.AccountServiceInterface, store common.UserDataStore, identity lookup.Identity) error {
+	var r []string
+
+	txs, err := api.FetchTransactions(ctx, identity.ChecksumAddress)
+	if err != nil {
+		return err
+	}
+
+	for i, tx := range(txs) {
+		r = append(r, fmt.Sprintf("%d %s %s", i, tx.DateBlock, tx.TxHash[:10]))
+	}
+
+	s := strings.Join(r, "\n")
+	return store.WriteEntry(ctx, identity.SessionId, common.DATA_TRANSACTIONS, []byte(s))
+}
+
+func updateTokenList(ctx context.Context, api remote.AccountServiceInterface, store *common.UserDataStore, identity lookup.Identity) error {
+	holdings, err := api.FetchVouchers(ctx, identity.ChecksumAddress)
+	if err != nil {
+		return err
+	}
+	metadata := common.ProcessVouchers(holdings)
+	_ = metadata
+
+	// TODO: export subprefixdb and use that instead
+	// TODO: make sure subprefixdb is thread safe when using gdbm
+	store.Db.SetPrefix(DATATYPE_USERSUB)
+
+	k := append([]byte("vouchers"), []byte("sym")...)
+	err = store.Db.Put(ctx, k, []byte(metadata.Symbols))
+	if err != nil {
+		return err
+	}
+
+	k = append([]byte("vouchers"), []byte("bal")...)
+	err = store.Db.Put(ctx, k, []byte(metadata.Balances))
+	if err != nil {
+		return err
+	}
+
+	k = append([]byte("vouchers"), []byte("deci")...)
+	err = store.Db.Put(ctx, k, []byte(metadata.Decimals))
+	if err != nil {
+		return err
+	}
+
+	k = append([]byte("vouchers"), []byte("addr")...)
+	err = store.Db.Put(ctx, k, []byte(metadata.Addresses))
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+//func updateTokenBalance(ctx context.Context, api remote.AccountServiceInterface, store common.UserDataStore, sessionId string) error {
+//	r, err := api.CheckBalance(ctx, sessionId)
+//	if err != nil {
+//		return err
+//	}
+//	//store.WriteEntry()
+//	return nil
+//}
+//
+func updateDefaultToken(ctx context.Context, store *common.UserDataStore, identity lookup.Identity, activeSym string) error {
+	return nil
+}
+
+func updateToken(ctx context.Context, store *common.UserDataStore, identity lookup.Identity) error {
+	var api remote.AccountService
+
+	err := updateTokenList(ctx, &api, store, identity)
+	if err != nil {
+		return err
+	}
+
+	activeSym, err := store.ReadEntry(ctx, identity.SessionId, common.DATA_ACTIVE_ADDRESS)
+	if err == nil {
+		return nil
+	}
+	if !db.IsNotFound(err) {
+		return err
+	}
+
+	err = updateDefaultToken(ctx, store, identity, string(activeSym))
+	if err != nil {
+		return err
+	}
+
+//	err = updateTokenBalance(ctx, &api, store, sessionId)
+//	if err != nil {
+//		return err
+//	}
+//	err = updateTokenTransferList(ctx, &api, store, sessionId)
+//	if err != nil {
+//		return err
+//	}
+//	
+	return nil
+}
+
+func handleTokenTransfer(ctx context.Context, store *common.UserDataStore, ev *eventTokenTransfer) error {
+	identity, err := lookup.IdentityFromAddress(ctx, store, ev.From)
+	if err != nil {
+		if !db.IsNotFound(err) {
+			return err
+		}
+	} else {
+		err = updateToken(ctx, store, identity)
+		if err != nil {
+			return err
+		}
+	}
+	identity, err = lookup.IdentityFromAddress(ctx, store, ev.To)
+	if err != nil {
+		if !db.IsNotFound(err) {
+			return err
+		}
+	} else {
+		err = updateToken(ctx, store, identity)
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}

go.mod

@@ -3,17 +3,29 @@ module git.grassecon.net/term
 go 1.23.2
 
 require (
-	git.defalsify.org/vise.git v0.2.0
+	git.defalsify.org/vise.git v0.2.1-0.20241031204035-b588301738ed
+	git.grassecon.net/urdt/ussd v0.0.0-20241102164250-3a8a5f40baa5
 	github.com/grassrootseconomics/eth-tracker v1.3.0-rc
 	github.com/nats-io/nats.go v1.37.0
 )
 
 require (
 	github.com/barbashov/iso639-3 v0.0.0-20211020172741-1f4ffb2d8d1c // indirect
+	github.com/fxamacker/cbor/v2 v2.4.0 // indirect
+	github.com/grassrootseconomics/eth-custodial v1.3.0-beta // indirect
+	github.com/grassrootseconomics/ussd-data-service v0.0.0-20241003123429-4904b4438a3a // indirect
+	github.com/graygnuorg/go-gdbm v0.0.0-20220711140707-71387d66dce4 // indirect
+	github.com/jackc/pgpassfile v1.0.0 // indirect
+	github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
+	github.com/jackc/pgx/v5 v5.7.1 // indirect
+	github.com/jackc/puddle/v2 v2.2.2 // indirect
+	github.com/joho/godotenv v1.5.1 // indirect
 	github.com/klauspost/compress v1.17.2 // indirect
 	github.com/nats-io/nkeys v0.4.7 // indirect
 	github.com/nats-io/nuid v1.0.1 // indirect
-	golang.org/x/crypto v0.26.0 // indirect
+	github.com/x448/float16 v0.8.4 // indirect
-	golang.org/x/sys v0.24.0 // indirect
+	golang.org/x/crypto v0.27.0 // indirect
-	golang.org/x/text v0.17.0 // indirect
+	golang.org/x/sync v0.8.0 // indirect
+	golang.org/x/sys v0.25.0 // indirect
+	golang.org/x/text v0.18.0 // indirect
 )

go.sum

@@ -1,9 +1,38 @@
-git.defalsify.org/vise.git v0.2.0 h1:X2ZgiGRq4C+9qOlDMP0b/oE5QHjVQNT4aEFZB88ST0Q=
+git.defalsify.org/vise.git v0.2.1-0.20241031204035-b588301738ed h1:4TrsfbK7NKgsa7KjMPlnV/tjYTkAAXP5PWAZzUfzCdI=
-git.defalsify.org/vise.git v0.2.0/go.mod h1:JDguWmcoWBdsnpw7PUjVZAEpdC/ubBmjdUBy3tjP63M=
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+git.grassecon.net/urdt/ussd v0.0.0-20241102164250-3a8a5f40baa5 h1:B+2YYPw8REXOuEL0PgS5Mzky253wrwWYL9mpD5CmGW4=
+git.grassecon.net/urdt/ussd v0.0.0-20241102164250-3a8a5f40baa5/go.mod h1:ADB/wpwvI6umvYzGqpJGm/GYj8msxYGiczzWCCdXegs=
+github.com/alecthomas/assert/v2 v2.2.2 h1:Z/iVC0xZfWTaFNE6bA3z07T86hd45Xe2eLt6WVy2bbk=
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 github.com/barbashov/iso639-3 v0.0.0-20211020172741-1f4ffb2d8d1c h1:H9Nm+I7Cg/YVPpEV1RzU3Wq2pjamPc/UtHDgItcb7lE=
 github.com/barbashov/iso639-3 v0.0.0-20211020172741-1f4ffb2d8d1c/go.mod h1:rGod7o6KPeJ+hyBpHfhi4v7blx9sf+QsHsA7KAsdN6U=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM=
+github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/fxamacker/cbor/v2 v2.4.0 h1:ri0ArlOR+5XunOP8CRUowT0pSJOwhW098ZCUyskZD88=
+github.com/fxamacker/cbor/v2 v2.4.0/go.mod h1:TA1xS00nchWmaBnEIxPSE5oHLuJBAVvqrtAnWBwBCVo=
+github.com/grassrootseconomics/eth-custodial v1.3.0-beta h1:twrMBhl89GqDUL9PlkzQxMP/6OST1BByrNDj+rqXDmU=
+github.com/grassrootseconomics/eth-custodial v1.3.0-beta/go.mod h1:7uhRcdnJplX4t6GKCEFkbeDhhjlcaGJeJqevbcvGLZo=
 github.com/grassrootseconomics/eth-tracker v1.3.0-rc h1:iYe2rwCBrU5O8x0+HSJRjcPT1h68k/uGd3i/cJJQuTQ=
 github.com/grassrootseconomics/eth-tracker v1.3.0-rc/go.mod h1:rLXM5u8FDHnMEdah8ACgo/wfawu4o2sljHGkky2rQKE=
+github.com/grassrootseconomics/ussd-data-service v0.0.0-20241003123429-4904b4438a3a h1:q/YH7nE2j8epNmFnTu0tU1vwtCxtQ6nH+d7hRVV5krU=
+github.com/grassrootseconomics/ussd-data-service v0.0.0-20241003123429-4904b4438a3a/go.mod h1:hdKaKwqiW6/kphK4j/BhmuRlZDLo1+DYo3gYw5O0siw=
+github.com/graygnuorg/go-gdbm v0.0.0-20220711140707-71387d66dce4 h1:U4kkNYryi/qfbBF8gh7Vsbuz+cVmhf5kt6pE9bYYyLo=
+github.com/graygnuorg/go-gdbm v0.0.0-20220711140707-71387d66dce4/go.mod h1:zpZDgZFzeq9s0MIeB1P50NIEWDFFHSFBohI/NbaTD/Y=
+github.com/hexops/gotextdiff v1.0.3 h1:gitA9+qJrrTCsiCl7+kh75nPqQt1cx4ZkudSTLoUqJM=
+github.com/hexops/gotextdiff v1.0.3/go.mod h1:pSWU5MAI3yDq+fZBTazCSJysOMbxWL1BSow5/V2vxeg=
+github.com/jackc/pgpassfile v1.0.0 h1:/6Hmqy13Ss2zCq62VdNG8tM1wchn8zjSGOBJ6icpsIM=
+github.com/jackc/pgpassfile v1.0.0/go.mod h1:CEx0iS5ambNFdcRtxPj5JhEz+xB6uRky5eyVu/W2HEg=
+github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 h1:iCEnooe7UlwOQYpKFhBabPMi4aNAfoODPEFNiAnClxo=
+github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761/go.mod h1:5TJZWKEWniPve33vlWYSoGYefn3gLQRzjfDlhSJ9ZKM=
+github.com/jackc/pgx/v5 v5.7.1 h1:x7SYsPBYDkHDksogeSmZZ5xzThcTgRz++I5E+ePFUcs=
+github.com/jackc/pgx/v5 v5.7.1/go.mod h1:e7O26IywZZ+naJtWWos6i6fvWK+29etgITqrqHLfoZA=
+github.com/jackc/puddle/v2 v2.2.2 h1:PR8nw+E/1w0GLuRFSmiioY6UooMp6KJv0/61nB7icHo=
+github.com/jackc/puddle/v2 v2.2.2/go.mod h1:vriiEXHvEE654aYKXXjOvZM39qJ0q+azkZFrfEOc3H4=
+github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
+github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
 github.com/klauspost/compress v1.17.2 h1:RlWWUY/Dr4fL8qk9YG7DTZ7PDgME2V4csBXA8L/ixi4=
 github.com/klauspost/compress v1.17.2/go.mod h1:ntbaceVETuRiXiv4DpjP66DpAtAGkEQskQzEyD//IeE=
 github.com/nats-io/nats.go v1.37.0 h1:07rauXbVnnJvv1gfIyghFEo6lUcYRY0WXc3x7x0vUxE=
@@ -12,9 +41,27 @@ github.com/nats-io/nkeys v0.4.7 h1:RwNJbbIdYCoClSDNY7QVKZlyb/wfT6ugvFCiKy6vDvI=
 github.com/nats-io/nkeys v0.4.7/go.mod h1:kqXRgRDPlGy7nGaEDMuYzmiJCIAAWDK0IMBtDmGD0nc=
 github.com/nats-io/nuid v1.0.1 h1:5iA8DT8V7q8WK2EScv2padNa/rTESc1KdnPw4TC2paw=
 github.com/nats-io/nuid v1.0.1/go.mod h1:19wcPz3Ph3q0Jbyiqsd0kePYG7A95tJPxeL+1OSON2c=
-golang.org/x/crypto v0.26.0 h1:RrRspgV4mU+YwB4FYnuBoKsUapNIL5cohGAmSH3azsw=
+github.com/pashagolub/pgxmock/v4 v4.3.0 h1:DqT7fk0OCK6H0GvqtcMsLpv8cIwWqdxWgfZNLeHCb/s=
-golang.org/x/crypto v0.26.0/go.mod h1:GY7jblb9wI+FOo5y8/S2oY4zWP07AkOJ4+jxCqdqn54=
+github.com/pashagolub/pgxmock/v4 v4.3.0/go.mod h1:9VoVHXwS3XR/yPtKGzwQvwZX1kzGB9sM8SviDcHDa3A=
-golang.org/x/sys v0.24.0 h1:Twjiwq9dn6R1fQcyiK+wQyHWfaz/BJB+YIpzU/Cv3Xg=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-golang.org/x/sys v0.24.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
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-golang.org/x/text v0.17.0 h1:XtiM5bkSOt+ewxlOE/aE/AKEHibwj/6gvWMl9Rsh0Qc=
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-golang.org/x/text v0.17.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
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+github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
+github.com/x448/float16 v0.8.4 h1:qLwI1I70+NjRFUR3zs1JPUCgaCXSh3SW62uAKT1mSBM=
+github.com/x448/float16 v0.8.4/go.mod h1:14CWIYCyZA/cWjXOioeEpHeN/83MdbZDRQHoFcYsOfg=
+golang.org/x/crypto v0.27.0 h1:GXm2NjJrPaiv/h1tb2UH8QfgC/hOf/+z0p6PT8o1w7A=
+golang.org/x/crypto v0.27.0/go.mod h1:1Xngt8kV6Dvbssa53Ziq6Eqn0HqbZi5Z6R0ZpwQzt70=
+golang.org/x/sync v0.8.0 h1:3NFvSEYkUoMifnESzZl15y791HH1qU2xm6eCJU5ZPXQ=
+golang.org/x/sync v0.8.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
+golang.org/x/sys v0.25.0 h1:r+8e+loiHxRqhXVl6ML1nO3l1+oFoWbnlu2Ehimmi34=
+golang.org/x/sys v0.25.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/text v0.18.0 h1:XvMDiNzPAl0jr17s6W9lcaIhGUfUORdGCNsuLmPG224=
+golang.org/x/text v0.18.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

handler/reg.go

@@ -1,26 +0,0 @@
-package handler
-
-import (
-	"git.defalsify.org/vise.git/db"
-
-	"git.grassecon.net/term/common"
-	"git.grassecon.net/term/lookup"
-)
-
-func HandleEvReg(store db.Db, payload map[string]any) error {
-	var err error
-	address, ok := payload["address"].(string)
-	if !ok {
-		return ErrInvalidPayload
-	}
-	address, err = common.NormalizeHex(address)
-	if err != nil {
-		return err
-	}
-	sessionId, err := lookup.GetSessionIdByAddress(store, address)
-	if err != nil {
-		return err
-	}
-	_ = sessionId
-	return nil
-}

lookup/db.go

@@ -1,10 +1,38 @@
 package lookup
 
 import (
-	"git.defalsify.org/vise.git/db"
+	"context"
+
+	"git.grassecon.net/urdt/ussd/common"
 )
 
-func GetSessionIdByAddress(store db.Db, address string) (string, error) {
+type Identity struct {
-	var r string
+	NormalAddress string
-	return r, nil
+	ChecksumAddress string
+	SessionId string
+}
+
+func IdentityFromAddress(ctx context.Context, store *common.UserDataStore, address string) (Identity, error) {
+	var err error
+	var ident Identity
+
+	ident.ChecksumAddress = address
+	ident.NormalAddress, err = common.NormalizeHex(ident.ChecksumAddress)
+	if err != nil {
+		return ident, err
+	}
+	ident.SessionId, err = getSessionIdByAddress(ctx, store, ident.NormalAddress)
+	if err != nil {
+		return ident, err
+	}
+	return ident, nil
+}
+
+func getSessionIdByAddress(ctx context.Context, store *common.UserDataStore, address string) (string, error) {
+	
+	r, err := store.ReadEntry(ctx, address, common.DATA_PUBLIC_KEY_REVERSE)
+	if err != nil {
+		return "", err
+	}
+	return string(r), nil
 }