wip: create market

hotreload.sh

@@ -4,16 +4,16 @@ PID=$(pidof delphi.market)
 
 set -e
 
+echo ":: remote port forwarding for dev1.delphi.market ::"
+ssh -fnNR 4322:localhost:4321 dev1.delphi.market
+echo
+
 function restart_server() {
   set +e
   [[ -z "$PID" ]] || kill -15 $PID
   ENV=development make build -B
   set -e
-  tailwindcss -i public/css/_tw-input.css -o public/css/tailwind.css
-  templ generate -path server/router/pages
-  go build -o delphi.market .
   ./delphi.market 2>&1 &
-  templ generate -path server/router/pages
   PID=$(pidof delphi.market)
 }
 

server/router/handler/auth.go

@@ -152,7 +152,7 @@ func HandleLnAuthCallback(sc context.Context) echo.HandlerFunc {
 }
 
 func NostrAuth(sc context.Context, c echo.Context, action string) error {
-	return echo.NewHTTPError(http.StatusNotImplemented, nil)
+	return echo.NewHTTPError(http.StatusNotImplemented)
 }
 
 func HandleSessionCheck(sc context.Context) echo.HandlerFunc {

server/router/handler/invoice.go

@@ -0,0 +1,52 @@
+package handler
+
+import (
+	"database/sql"
+	"net/http"
+	"time"
+
+	"git.ekzyis.com/ekzyis/delphi.market/server/router/context"
+	"git.ekzyis.com/ekzyis/delphi.market/server/router/pages/components"
+	"git.ekzyis.com/ekzyis/delphi.market/types"
+	"github.com/a-h/templ"
+	"github.com/labstack/echo/v4"
+)
+
+func HandleInvoice(sc context.Context) echo.HandlerFunc {
+	return func(c echo.Context) error {
+		var (
+			db        = sc.Db
+			ctx       = c.Request().Context()
+			hash      = c.Param("hash")
+			u         = c.Get("session").(types.User)
+			inv       = types.Invoice{}
+			expiresIn int
+			paid      bool
+			qr        templ.Component
+			err       error
+		)
+
+		if err = db.QueryRowContext(ctx, ""+
+			"SELECT user_id, msats, COALESCE(msats_received, 0), expires_at, confirmed_at, bolt11 "+
+			"FROM invoices "+
+			"WHERE hash = $1", hash).
+			Scan(&inv.UserId, &inv.Msats, &inv.MsatsReceived, &inv.ExpiresAt, &inv.ConfirmedAt, &inv.Bolt11); err != nil {
+			if err == sql.ErrNoRows {
+				return echo.NewHTTPError(http.StatusNotFound)
+			}
+			c.Logger().Error(err)
+			return echo.NewHTTPError(http.StatusInternalServerError)
+		}
+
+		if u.Id != inv.UserId {
+			return echo.NewHTTPError(http.StatusNotFound)
+		}
+
+		expiresIn = int(time.Until(inv.ExpiresAt).Seconds())
+		paid = inv.MsatsReceived >= inv.Msats
+
+		qr = components.Invoice(hash, inv.Bolt11, int(inv.Msats), expiresIn, paid)
+
+		return components.Modal(qr).Render(context.RenderContext(sc, c), c.Response().Writer)
+	}
+}

server/router/handler/market.go

@@ -67,7 +67,7 @@ func HandleCreate(sc context.Context) echo.HandlerFunc {
 			return err
 		}
 
-		qr = components.Qr(paymentRequest, "lightning:"+paymentRequest)
+		qr = components.Invoice(hash.String(), paymentRequest, int(amount), int(expiry), false)
 
 		return components.Modal(qr).Render(context.RenderContext(sc, c), c.Response().Writer)
 	}

server/router/pages/components/invoice.templ

@@ -0,0 +1,49 @@
+package components
+
+import (
+	"strconv"
+)
+
+templ Invoice(hash string, bolt11 string, msats int, expiresIn int, paid bool) {
+    <div class="p-5 border border-muted bg-background text-center ">
+        @Qr(bolt11, "lightning:"+bolt11)
+        <small class="mx-auto w-[256px] my-1 break-words">{ bolt11 }</small>
+        <div class="my-1">{ strconv.Itoa(msats/1000) } sats</div>
+        if !paid {
+            <div class="font-mono" id="countdown" countdown-data={ templ.JSONString(expiresIn)} hx-preserve></div>
+            <script type="text/javascript">
+            function countdown() {
+                // a script that was included in a previous response might already be running the countdown
+                if (typeof interval !== "undefined") return
+                
+                var $ = selector => document.querySelector(selector)
+                var expiresIn = JSON.parse($("#countdown").getAttribute("countdown-data"))
+
+                function pad(num, places) {
+                    return String(num).padStart(places, "0")
+                }
+                
+                function _countdown() {
+                    var minutes = Math.floor(expiresIn / 60)
+                    var seconds = expiresIn % 60
+                    var text = `${pad(minutes, 2)}:${pad(seconds, 2)}`
+                    $("#countdown").innerText = text
+                    expiresIn--
+                }
+
+                _countdown()
+                interval = setInterval(_countdown, 1000)
+            }
+            countdown()
+            </script>
+            <div
+                hx-get={ string(templ.SafeURL("/invoice/" + hash)) }
+                hx-trigger="load delay:1s"
+                hx-target="#modal"
+                hx-swap="outerHTML"
+                hx-select="#modal" />
+        } else {
+            <div class="font-mono text-green">PAID</div>
+        }
+    </div>
+}

server/router/router.go

@@ -27,4 +27,6 @@ func Init(e *echo.Echo, sc Context) {
 
 	e.GET("/user", handler.HandleUser(sc), middleware.SessionGuard(sc))
 	e.POST("/logout", handler.HandleLogout(sc), middleware.SessionGuard(sc))
+
+	e.GET("/invoice/:hash", handler.HandleInvoice(sc), middleware.SessionGuard(sc))
 }

shell.nix

@@ -0,0 +1,18 @@
+let
+  nixpkgs = fetchTarball "https://github.com/NixOS/nixpkgs/tarball/nixos-23.11";
+  pkgs = import nixpkgs { config = {}; overlays = []; };
+in
+
+pkgs.mkShell {
+  packages = with pkgs; [
+    go
+    tailwindcss
+    gnumake
+    inotify-tools
+    figlet
+  ];
+  shellHook = ''
+    # install templ if not already installed
+    command -v templ > /dev/null || go install github.com/a-h/templ/cmd/templ@latest
+  '';
+}

tailwind.config.js

@@ -6,7 +6,12 @@ module.exports = {
       center: true,
       padding: '1rem'
     },
-    extend: {},
+    extend: {
+      colors: {
+        'background': '191d21',
+        'muted': '#6c757d',
+      },
+    },
   },
   plugins: [
     function ({ addComponents }) {

types/types.go

@@ -1,6 +1,10 @@
 package types
 
-import "time"
+import (
+	"time"
+
+	"gopkg.in/guregu/null.v4"
+)
 
 type User struct {
 	Id          int
@@ -9,3 +13,17 @@ type User struct {
 	NostrPubkey string
 	Msats       int64
 }
+
+type Invoice struct {
+	Id            int
+	UserId        int
+	Msats         int64
+	MsatsReceived int64
+	Hash          string
+	Bolt11        string
+	CreatedAt     time.Time
+	ExpiresAt     time.Time
+	ConfirmedAt   null.Time
+	HeldSince     bool
+	Description   string
+}