wip: create market

TODO:
* create market page with buttons for betting
* validate end date

lnd/lnd.go

@@ -34,6 +34,7 @@ func New(config *LNDConfig) (*LNDClient, error) {
 
 func (lnd *LNDClient) PollInvoices(db *db.DB) {
 	var (
+		pending bool
 		rows    *sql.Rows
 		hash    lntypes.Hash
 		inv     *lndclient.Invoice
@@ -41,13 +42,21 @@ func (lnd *LNDClient) PollInvoices(db *db.DB) {
 	)
 	for {
 		// fetch all pending invoices
-		if rows, err = db.Query("SELECT hash FROM invoices WHERE confirmed_at IS NULL AND expires_at > CURRENT_TIMESTAMP"); err != nil {
+		if rows, err = db.Query("SELECT hash, expires_at FROM invoices WHERE confirmed_at IS NULL AND expires_at > CURRENT_TIMESTAMP"); err != nil {
 			log.Printf("error checking invoices: %v", err)
 		}
 
+		pending = false
+
 		for rows.Next() {
-			var h string
-			rows.Scan(&h)
+			pending = true
+
+			var (
+				h         string
+				expiresAt time.Time
+			)
+			rows.Scan(&h, &expiresAt)
+
 			if hash, err = lntypes.MakeHashFromStr(h); err != nil {
 				log.Printf("error parsing hash: %v", err)
 				continue
@@ -59,7 +68,7 @@ func (lnd *LNDClient) PollInvoices(db *db.DB) {
 			}
 
 			if !inv.State.IsFinal() {
-				log.Printf("invoice pending: %s", h)
+				log.Printf("invoice pending: %s %s", h, expiresAt.Sub(time.Now()))
 				continue
 			}
 
@@ -74,6 +83,12 @@ func (lnd *LNDClient) PollInvoices(db *db.DB) {
 				log.Printf("invoice expired: %s", h)
 			}
 		}
+
+		// poll faster if there are pending invoices
+		if pending {
+			time.Sleep(1 * time.Second)
+		} else {
 			time.Sleep(5 * time.Second)
 		}
 	}
+}

public/css/_tw-input.css

@@ -23,6 +23,16 @@
     transition: background-color 150ms ease-in;
   }
 
+  #content {
+    min-height: 85svh;
+  }
+
+  @media (min-width: 768px) {
+    #content {
+      min-height: 90svh;
+    }
+  }
+
   footer {
     color: var(--muted);
   }
@@ -36,14 +46,16 @@
   a:not(.no-link),
   button[hx-get],
   button[hx-post],
-  button[type="submit"] {
+  button[type="submit"],
+  .button {
     transition: background-color 150ms ease-in, color 150ms ease-in;
   }
 
   a:not(.no-link):hover,
   button[hx-get]:hover,
   button[hx-post]:hover,
-  button[type="submit"]:hover {
+  button[type="submit"]:hover,
+  .button:hover {
     background-color: var(--color);
     color: var(--background);
   }
@@ -54,7 +66,8 @@
   }
 
   button[hx-post],
-  button[type="submit"] {
+  button[type="submit"],
+  .button {
     border-width: 1px;
   }
 
@@ -78,6 +91,15 @@
     color: var(--muted);
   }
 
+  .text-reset {
+    color: var(--color);
+  }
+
+  .hitbox {
+    padding: 15px;
+    margin: -15px;
+  }
+
   .label {
     border: none;
     padding: 0.5em 3em;
@@ -98,7 +120,7 @@
     color: var(--fg-error);
   }
 
-  label.error:hover {
+  .label.error:hover {
     background-color: var(--fg-error);
     color: var(--white);
   }

server/router/handler/invoice.go

@@ -30,7 +30,7 @@ func HandleInvoice(sc context.Context) echo.HandlerFunc {
 		)
 
 		if err = db.QueryRowContext(ctx, ""+
-			"SELECT user_id, msats, COALESCE(msats_received, 0), expires_at, confirmed_at, bolt11, description "+
+			"SELECT user_id, msats, COALESCE(msats_received, 0), expires_at, confirmed_at, bolt11, COALESCE(description, '') "+
 			"FROM invoices "+
 			"WHERE hash = $1", hash).
 			Scan(&inv.UserId, &inv.Msats, &inv.MsatsReceived, &inv.ExpiresAt, &inv.ConfirmedAt, &inv.Bolt11, &inv.Description); err != nil {

server/router/handler/market.go

@@ -3,9 +3,11 @@ package handler
 import (
 	"database/sql"
 	"fmt"
+	"net/http"
 	"time"
 
 	"git.ekzyis.com/ekzyis/delphi.market/server/router/context"
+	"git.ekzyis.com/ekzyis/delphi.market/server/router/pages"
 	"git.ekzyis.com/ekzyis/delphi.market/server/router/pages/components"
 	"git.ekzyis.com/ekzyis/delphi.market/types"
 	"github.com/a-h/templ"
@@ -83,3 +85,27 @@ func HandleCreate(sc context.Context) echo.HandlerFunc {
 		return components.Modal(qr).Render(context.RenderContext(sc, c), c.Response().Writer)
 	}
 }
+
+func HandleMarket(sc context.Context) echo.HandlerFunc {
+	return func(c echo.Context) error {
+		var (
+			db     = sc.Db
+			ctx    = c.Request().Context()
+			id     = c.Param("id")
+			market = types.Market{}
+			err    error
+		)
+
+		if err = db.QueryRowContext(ctx, ""+
+			"SELECT id, question, description, end_date, user_id "+
+			"FROM markets "+
+			"WHERE id = $1", id).Scan(&market.Id, &market.Question, &market.Description, &market.EndDate, &market.UserId); err != nil {
+			if err == sql.ErrNoRows {
+				return echo.NewHTTPError(http.StatusNotFound)
+			}
+			return err
+		}
+
+		return pages.Market(market).Render(context.RenderContext(sc, c), c.Response().Writer)
+	}
+}

server/router/pages/components/invoice.templ

@@ -1,20 +1,24 @@
 package components
 
 import (
-	"strconv"
+    "fmt"
 )
 
 templ Invoice(hash string, bolt11 string, msats int, expiresIn int, paid bool, redirectUrl templ.SafeURL) {
     <div class="p-5 border border-muted bg-background text-center font-mono">
+        <div id="close" class="flex justify-end"><button class="w-fit text-muted hitbox hover:text-reset">X</button></div>
         <div>Payment Required</div>
-        <div class="my-3">@Qr(bolt11, "lightning:"+bolt11)</div>
-        <div class="my-1">{ strconv.Itoa(msats/1000) } sats</div>
+        <div class="my-1">@Qr(bolt11, "lightning:"+bolt11)</div>
+        <div class="my-1">{ format(msats) }</div>
         @InvoiceStatus(hash, expiresIn, paid, redirectUrl)
-        <div class="none" id="bolt11" bolt11-data={ templ.JSONString(bolt11) } hx-preserve></div>
+        <div class="none" id="bolt11-data" bolt11-data={ templ.JSONString(bolt11) } hx-preserve></div>
         <script type="text/javascript" id="bolt11-js" hx-preserve>
             var $ = selector => document.querySelector(selector)
-            var bolt11 = JSON.parse($("#bolt11").getAttribute("bolt11-data"))
-            console.log(bolt11)
+            $("#close").addEventListener("click", function () {
+                // abort in-flight polls and prevent new polls
+                htmx.trigger("#poll", "htmx:abort")
+                $("#poll").addEventListener("htmx:beforeRequest", e => e.preventDefault())
+            })
         </script>
     </div>
 }
@@ -23,11 +27,14 @@ templ InvoiceStatus(hash string, expiresIn int, paid bool, redirectUrl templ.Saf
     if paid {
         <div class="font-mono label success my-1">PAID</div>
         <div
+            id="poll"
             hx-get={ string(redirectUrl) }
             hx-trigger="load delay:3s"
             hx-target="#content"
             hx-swap="outerHTML"
-            hx-select="#content" />
+            hx-select="#content"
+            hx-push-url="true"
+            hx-select-oob="#modal" />
     }
     else if expiresIn <= 0 {
         <div class="font-mono label error my-1">EXPIRED</div>
@@ -59,6 +66,7 @@ templ InvoiceStatus(hash string, expiresIn int, paid bool, redirectUrl templ.Saf
             var interval = setInterval(_countdown, 1000)
         </script>
         <div
+            id="poll"
             hx-get={ string(templ.SafeURL("/invoice/" + hash)) }
             hx-trigger="load delay:1s"
             hx-target="#modal"
@@ -66,3 +74,11 @@ templ InvoiceStatus(hash string, expiresIn int, paid bool, redirectUrl templ.Saf
             hx-select="#modal" />
     }
 }
+
+func format(msats int) string {
+    sats := msats / 1000
+    if sats == 1 {
+        return fmt.Sprintf("%d sat", sats)
+    }
+    return fmt.Sprintf("%d sats", sats)
+}

server/router/pages/components/modal.templ

@@ -13,6 +13,14 @@ templ Modal(component templ.Component) {
 				<div class="flex justify-center p-3 w-screen">
 					@component
 				</div>
+				<script type="text/javascript">
+					var $ = selector => document.querySelector(selector)
+					$("#close").addEventListener("click", function () {
+						$("#modal").removeAttribute("class")
+						$("#modal").setAttribute("class", "hidden")
+						$("#modal").innerHTML = ""
+					})
+				</script>
 			</div>
 		</div>
 	} else {

server/router/pages/components/qr.templ

@@ -13,11 +13,29 @@ templ Qr(value string, href string) {
 		>
 			<img src={ "data:image/jpeg;base64," + qrEncode(value) }/>
 		</a>
+		<small class="flex my-1 mx-auto">
+			<span class="block w-[188px] overflow-hidden">{ value }</span>
+			<button id="copy" class="ms-1 button w-[64px]" hx-preserve>copy</button>
+		</small>
+		@CopyButton(value)
 	} else {
 		<img src={ "data:image/jpeg;base64," + qrEncode(value) }/>
 	}
 }
 
+templ CopyButton(value string) {
+	<div class="none" id="copy-data" copy-data={ templ.JSONString(value) } hx-preserve></div>
+	<script type="text/javascript" id="copy-js" hx-preserve>
+		var $ = selector => document.querySelector(selector)
+		var value = JSON.parse($("#copy-data").getAttribute("copy-data"))
+		$("#copy").onclick = function () {
+			window.navigator.clipboard.writeText(value)
+			$("#copy").textContent = "copied"
+			setTimeout(() => $("#copy").textContent = "copy", 1000)
+		}
+	</script>
+}
+
 func qrEncode(value string) string {
 	png, err := qrcode.Encode(value, qrcode.Medium, 256)
 	if err != nil {

server/router/pages/lnAuth.templ

@@ -18,7 +18,6 @@ templ LnAuth(lnurl string, action string) {
 					hx-push-url="true"
 				>
 					@components.Qr(lnurl, "lightning:"+lnurl)
-					<small class="mx-auto w-[256px] my-1 break-words">{ lnurl }</small>
 				</div>
 				<div hx-get="/session" hx-trigger="every 1s" hx-swap="none"></div>
 			</div>

server/router/pages/market.templ

@@ -0,0 +1,28 @@
+package pages
+
+import (
+    "git.ekzyis.com/ekzyis/delphi.market/server/router/pages/components"
+	"git.ekzyis.com/ekzyis/delphi.market/types"
+)
+
+templ Market(m types.Market) {
+    <html>
+		@components.Head()
+		<body class="container">
+			@components.Nav()
+			<div id="content" class="flex flex-col">
+				<small>
+					@components.Figlet("random", "market")
+				</small>
+				<div class="text-center font-bold my-1">{ m.Question }</div>
+				<div class="my-1">{ m.Description }</div>
+				<div class="flex justify-center my-1">
+					<button class="label success mx-1">BET YES</button>
+					<button class="label error mx-1">BET NO</button>
+				</div>
+            </div>
+			@components.Modal(nil)
+			@components.Footer()
+		</body>
+	</html>
+}

server/router/router.go

@@ -16,6 +16,7 @@ func Init(e *echo.Echo, sc Context) {
 	e.GET("/", handler.HandleIndex(sc))
 	e.GET("/create", handler.HandleIndex(sc))
 	e.POST("/create", handler.HandleCreate(sc), middleware.SessionGuard(sc))
+	e.GET("/market/:id", handler.HandleMarket(sc))
 	e.GET("/about", handler.HandleAbout(sc))
 
 	e.GET("/login", handler.HandleAuth(sc, "login"))

types/types.go

@@ -27,3 +27,11 @@ type Invoice struct {
 	HeldSince     bool
 	Description   string
 }
+
+type Market struct {
+	Id          int
+	UserId      int
+	Question    string
+	Description string
+	EndDate     time.Time
+}