Add invoice description

db/init.sql

@@ -35,7 +35,8 @@ CREATE TABLE invoices(
     created_at TIMESTAMP WITH TIME ZONE NOT NULL,
     expires_at TIMESTAMP WITH TIME ZONE NOT NULL,
     confirmed_at TIMESTAMP WITH TIME ZONE,
-    held_since TIMESTAMP WITH TIME ZONE
+    held_since TIMESTAMP WITH TIME ZONE,
+    description TEXT
 );
 CREATE TYPE order_side AS ENUM ('BUY', 'SELL');
 CREATE TABLE orders(

db/invoice.go

@@ -4,10 +4,10 @@ import "time"
 
 func (db *DB) CreateInvoice(invoice *Invoice) error {
 	if err := db.QueryRow(""+
-		"INSERT INTO invoices(pubkey, msats, preimage, hash, bolt11, created_at, expires_at) "+
-		"VALUES($1, $2, $3, $4, $5, $6, $7) "+
+		"INSERT INTO invoices(pubkey, msats, preimage, hash, bolt11, created_at, expires_at, description) "+
+		"VALUES($1, $2, $3, $4, $5, $6, $7, $8) "+
 		"RETURNING id",
-		invoice.Pubkey, invoice.Msats, invoice.Preimage, invoice.Hash, invoice.PaymentRequest, invoice.CreatedAt, invoice.ExpiresAt).Scan(&invoice.Id); err != nil {
+		invoice.Pubkey, invoice.Msats, invoice.Preimage, invoice.Hash, invoice.PaymentRequest, invoice.CreatedAt, invoice.ExpiresAt, invoice.Description).Scan(&invoice.Id); err != nil {
 		return err
 	}
 	return nil
@@ -20,7 +20,7 @@ type FetchInvoiceWhere struct {
 
 func (db *DB) FetchInvoice(where *FetchInvoiceWhere, invoice *Invoice) error {
 	var (
-		query = "SELECT id, pubkey, msats, preimage, hash, bolt11, created_at, expires_at, confirmed_at, held_since FROM invoices "
+		query = "SELECT id, pubkey, msats, preimage, hash, bolt11, created_at, expires_at, confirmed_at, held_since, COALESCE(description, '') FROM invoices "
 		args  []any
 	)
 	if where.Id != "" {
@@ -32,7 +32,7 @@ func (db *DB) FetchInvoice(where *FetchInvoiceWhere, invoice *Invoice) error {
 	}
 	if err := db.QueryRow(query, args...).Scan(
 		&invoice.Id, &invoice.Pubkey, &invoice.Msats, &invoice.Preimage, &invoice.Hash,
-		&invoice.PaymentRequest, &invoice.CreatedAt, &invoice.ExpiresAt, &invoice.ConfirmedAt, &invoice.HeldSince); err != nil {
+		&invoice.PaymentRequest, &invoice.CreatedAt, &invoice.ExpiresAt, &invoice.ConfirmedAt, &invoice.HeldSince, &invoice.Description); err != nil {
 		return err
 	}
 	return nil

db/market.go

@@ -46,6 +46,10 @@ func (db *DB) FetchShares(marketId int, shares *[]Share) error {
 	return nil
 }
 
+func (db *DB) FetchShare(shareId string, share *Share) error {
+	return db.QueryRow("SELECT id, market_id, description FROM shares WHERE id = $1", shareId).Scan(&share.Id, &share.MarketId, &share.Description)
+}
+
 func (db *DB) FetchOrders(where *FetchOrdersWhere, orders *[]Order) error {
 	query := "" +
 		"SELECT o.id, share_id, o.pubkey, o.side, o.quantity, o.price, o.invoice_id, o.created_at, s.description, s.market_id, i.confirmed_at " +

db/types.go

@@ -45,6 +45,7 @@ type (
 		ExpiresAt      time.Time
 		ConfirmedAt    null.Time
 		HeldSince      null.Time
+		Description    string
 	}
 	Order struct {
 		Id        UUID

lnd/invoice.go

@@ -12,7 +12,7 @@ import (
 	"github.com/lightningnetwork/lnd/lnwire"
 )
 
-func (lnd *LNDClient) CreateInvoice(d *db.DB, pubkey string, msats int64) (*db.Invoice, error) {
+func (lnd *LNDClient) CreateInvoice(d *db.DB, pubkey string, msats int64, description string) (*db.Invoice, error) {
 	var (
 		expiry         time.Duration = time.Hour
 		preimage       lntypes.Preimage
@@ -44,6 +44,7 @@ func (lnd *LNDClient) CreateInvoice(d *db.DB, pubkey string, msats int64) (*db.I
 		Hash:           hash.String(),
 		CreatedAt:      lnInvoice.CreationDate,
 		ExpiresAt:      lnInvoice.CreationDate.Add(expiry),
+		Description:    description,
 	}
 	if err := d.CreateInvoice(dbInvoice); err != nil {
 		return nil, err

server/router/handler/invoice.go

@@ -44,6 +44,7 @@ func HandleInvoiceStatus(sc context.ServerContext) echo.HandlerFunc {
 			"ExpiresAt":      invoice.ExpiresAt,
 			"ConfirmedAt":    invoice.ConfirmedAt,
 			"HeldSince":      invoice.HeldSince,
+			"Description":    invoice.Description,
 			"Qr":             qr,
 		}
 		return c.JSON(http.StatusOK, data)

server/router/handler/market.go

@@ -2,8 +2,10 @@ package handler
 
 import (
 	"database/sql"
+	"fmt"
 	"net/http"
 	"strconv"
+	"strings"
 
 	"git.ekzyis.com/ekzyis/delphi.market/db"
 	"git.ekzyis.com/ekzyis/delphi.market/lib"
@@ -50,8 +52,10 @@ func HandleOrder(sc context.ServerContext) echo.HandlerFunc {
 		var (
 			u           db.User
 			o           db.Order
+			s           db.Share
 			invoice     *db.Invoice
 			msats       int64
+			description string
 			data        map[string]any
 			qr          string
 			hash        lntypes.Hash
@@ -72,11 +76,15 @@ func HandleOrder(sc context.ServerContext) echo.HandlerFunc {
 		u = c.Get("session").(db.User)
 		o.Pubkey = u.Pubkey
 		msats = o.Quantity * o.Price * 1000
+		if err = sc.Db.FetchShare(o.ShareId, &s); err != nil {
+			return err
+		}
+		description = fmt.Sprintf("%s %d %s shares @ %d [market:%d]", strings.ToUpper(o.Side), o.Quantity, s.Description, o.Price, s.MarketId)
 
 		// TODO: if SELL order, check share balance of user
 
 		// Create HODL invoice
-		if invoice, err = sc.Lnd.CreateInvoice(sc.Db, o.Pubkey, msats); err != nil {
+		if invoice, err = sc.Lnd.CreateInvoice(sc.Db, o.Pubkey, msats, description); err != nil {
 			return err
 		}
 		// Create QR code to pay HODL invoice

vue/src/components/Invoice.vue

@@ -31,8 +31,22 @@
         <span class="mx-3 my-1">expires at</span><span class="text-ellipsis overflow-hidden font-mono me-3 my-1">
           {{ invoice.ExpiresAt }}
         </span>
-        <span class="mx-3 my-1">msats</span><span class="text-ellipsis overflow-hidden font-mono me-3 my-1">
-          {{ invoice.Msats }}
+        <span class="mx-3 my-1">sats</span><span class="text-ellipsis overflow-hidden font-mono me-3 my-1">
+          {{ invoice.Msats / 1000 }}
+        </span>
+        <span class="mx-3 my-1">description</span>
+        <span class="text-ellipsis overflow-hidden font-mono me-3 my-1">
+          <span v-if="invoice.DescriptionMarketId">
+            <span v-if="invoice.Description">
+              <span>{{ invoice.Description }}</span>
+              <router-link :to="'/market/' + invoice.DescriptionMarketId">[market]</router-link>
+            </span>
+            <span v-else>&lt;empty&gt;</span>
+          </span>
+          <span v-else>
+            <span v-if="invoice.Description">{{ invoice.Description }}</span>
+            <span v-else>&lt;empty&gt;</span>
+          </span>
         </span>
       </div>
     </div>
@@ -83,6 +97,15 @@ await (async () => {
   const url = window.origin + '/api/invoice/' + route.params.id
   const res = await fetch(url)
   const body = await res.json()
+  if (body.Description) {
+    const regexp = /\[market:(?<id>[0-9]+)\]/
+    const m = body.Description.match(regexp)
+    const marketId = m.groups?.id
+    if (marketId) {
+      body.DescriptionMarketId = marketId
+      body.Description = body.Description.replace(regexp, '')
+    }
+  }
   invoice.value = body
 })()
 </script>

vue/src/index.css

@@ -62,5 +62,5 @@ a.selected {
 }
 
 .text-muted {
-  opacity: 0.5
+  opacity: 0.67
 }