feat: motd

index.ts

@@ -12,6 +12,8 @@ for (const line of lines.slice(1)) {
 	}
 }
 
+const MOTD = process.env.MOTD || "50;";
+
 export let displaySockets: ServerWebSocket<unknown>[] = [];
 
 export async function broadcastDisplayUpdate() {
@@ -111,7 +113,7 @@ Bun.serve({
 				if(!displaySockets.includes(ws)) {
 					displaySockets.push(ws);
 					console.log("Added display socket. Total:", displaySockets.length);
-					ws.send(JSON.stringify({ type: "display", tickets: await getDisplayTickets() }));
+					ws.send(JSON.stringify({ type: "display", tickets: await getDisplayTickets(), motd: MOTD }));
 				}
 			}
 		}, // a message is received

web/src/routes/display/+page.svelte

@@ -24,6 +24,12 @@
 		withSound = location.search.includes("sound=true");
     eventTarget.addEventListener("display", (e) => {
       const detail = (e as CustomEvent).detail;
+			if(detail.motd) {
+				const [speed, ...text] = detail.motd.split(" ");
+				marqueeText = text.join(" ");
+				marqueeSpeed = parseInt(speed);
+				updateMarqueeSpeed();
+			}
       const _newCalls = detail.tickets.filter(
         (call: CallEntry) => !calls.find((c) => c.num === call.num)
       );
@@ -48,9 +54,22 @@
     );
   });
 
+	function updateMarqueeSpeed() {
+		requestAnimationFrame(() => {
+			const marqueeContent = document.querySelectorAll(".marquee-content") as NodeListOf<HTMLElement>;
+			const speed = marqueeSpeed; // px per second
+			const width = marqueeContent[0].offsetWidth;
+			marqueeContent[0].style.animationDuration = `${width / speed}s`;
+			marqueeContent[1].style.animationDuration = `${width / speed}s`;
+		});
+	}
+
   const ENTRIES: Record<string, number> = { A: 1, B: 2, C: 1, D: 2, E: 1 };
 
   const ENTRIES_PER_TABLE = 10;
+
+	let marqueeSpeed = 50;
+	let marqueeText = $state("");
 </script>
 
 {#if newCalls.length > 0}
@@ -84,6 +103,10 @@
   </div>
 {/if}
 
+<div class="marquee">
+	<div class="marquee-content">{marqueeText}</div>
+	<div class="marquee-content">{marqueeText}</div>
+</div>
 <div class="p-4 flex justify-around gap-4 text-5xl">
   <!--	<h1 class="text-6xl font-bold">Aufruf</h1> -->
   <table class="self-start">
@@ -136,7 +159,7 @@
   </table>
 
   <div
-    class="fixed h-full w-1 top-0 left-1/2 -translate-x-1/2 {wsState.closed
+    class="fixed h-full w-1 top-15 left-1/2 -translate-x-1/2 {wsState.closed
       ? 'bg-red-800'
       : !wsState.connected
         ? 'bg-amber-800'
@@ -239,4 +262,28 @@
     background-color: var(--accent);
     border: 2px solid var(--background);
   }
+
+	.marquee {
+		display: flex;
+		overflow: hidden;
+		width: 100vw;
+		white-space: nowrap;
+		font-size: 2.5rem;
+		gap: 4rem;
+	}
+
+	.marquee-content {
+		animation-iteration-count: infinite;
+		animation-name: marquee;
+		animation-timing-function: linear;
+	}
+
+	@keyframes marquee {
+		from {
+			transform: translateX(0%);
+		}
+		to {
+			transform: translateX(-100%);
+		}
+	}
 </style>