added "first in queue" info

Reviewed-on: #1

src/app.py

@@ -64,7 +64,7 @@ def infokiosk():
     return render_template("infokiosk.html", current=current)
 
 
-# API endpoint used by clients to poll current number (JSON)
+# API endpoint used by clients to poll current number(s) (JSON)
 @app.route("/current")
 def current_api():
     db = get_db()
@@ -76,7 +76,11 @@ def current_api():
         "SELECT COUNT(*) AS cnt FROM items WHERE status='waiting'"
     ).fetchone()
     waiting_count = cur_wait["cnt"] if cur_wait else 0
-    return jsonify(current=nums, waiting=waiting_count)
+    cur_first = db.execute(
+        "SELECT number AS first FROM items WHERE status='waiting' ORDER BY id LIMIT 1"
+    ).fetchone()
+    first = cur_first["first"] if cur_first else 0    
+    return jsonify(current=nums, waiting=waiting_count, first=first)
 
 
 # Admin UI: start/reset system by providing count of tickets (1..N)

src/templates/index.html

@@ -17,20 +17,22 @@
       try{
         const r = await fetch('/current');
         const j = await r.json();
+      
         const cont = document.getElementById('nums');
         cont.innerHTML = '';
         const list = j.current || [];
-        if(list.length === 0){
+        if(list.length == 0){
           cont.textContent = '-';
-          return;
-        }
+        } else {
 			list.forEach(n => {
 			  const el = document.createElement('div');
 			  el.className = 'num';
 			  el.textContent = n;
 			  cont.appendChild(el);
 			});  
+        };
         document.getElementById('waiting-count').textContent = (j.waiting != null) ? j.waiting : '0';    
+        document.getElementById('first-waiting').textContent = (j.first != 0 ) ? j.first : '-';                
       }catch(e){}
     }
     setInterval(fetchCurrent, 5000);
@@ -43,6 +45,7 @@
 
   <div id="waiting" style="margin-top:18px;color:#333">
     <h3>Wszystkich osób oczekujących: <span id="waiting-count">0</span></h3>
+    <h3>Pierwszy w kolejce numer <span id="first-waiting">-</span></h3>    
   </div>
 
 </body>

src/templates/infokiosk.html

@@ -116,11 +116,12 @@
 
           const nums = j.current || [];
           const waitingCount = j.waiting != null ? j.waiting : '0';
+          const first = j.first != 0 ? j.first : '-';
 
-          const infoText = 'Chcesz spróbować swoich sił w lutowaniu? Odbierz numer i sprawdzaj kolejkę na queue.hswro.org';
+          const infoText = 'Chcesz spróbować swoich sił w lutowaniu? Odbierz numer i sprawdzaj kolejkę tutaj lub na queue.hswro.org';
           const numsFormatted = nums.map(n => `<span class="num-inline">${n}</span>`).join(' ');
           const numList = nums.length > 0 ? `| Zapraszamy z numerami: ${numsFormatted}` : '';
-          const combinedText = `${infoText} | Oczekujących: ${waitingCount} ${numList}`;
+          const combinedText = `${infoText} | Liczba oczekujących: ${waitingCount} | Pierwszy w kolejce nr ${first} ${numList} `;
 
           const scrollContentElement = document.getElementById('scroll-content');