first commit

main.py

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+import time
+import requests
+import streamlit as st
+
+CAM_URLS = [
+    ("Celje SD (DARS)", "https://kamere.dars.si/kamere/Baza_Konjice/Celje_SD.jpg"),
+    ("Sp. Stražišče (DRSC)", "https://www.drsc.si/kamere/kamslike/SpodnjeStranice/Sst1_0001.jpg"),
+    ("Rogaška (DRSC)", "https://www.drsc.si/kamere/KamSlike/Rogaska/Slike/Rog1_0001.jpg"),
+]
+
+st.set_page_config(page_title="Road Cameras", layout="wide")
+st.title("Road Cameras")
+
+refresh_s = st.sidebar.number_input(
+    "Refresh interval (seconds)",
+    min_value=0.5,
+    max_value=60.0,
+    value=10.0,
+    step=0.5
+)
+cols_n = st.sidebar.slider("Columns", 1, 4, 2)
+auto = st.sidebar.toggle("Auto refresh", value=True)
+
+def fetch_image_bytes(url: str) -> bytes:
+    cb_url = f"{url}?_ts={int(time.time() * 1000)}"
+    headers = {
+        "User-Agent": "Mozilla/5.0",
+        "Accept": "image/jpeg,image/*,*/*;q=0.8",
+        "Cache-Control": "no-cache",
+        "Pragma": "no-cache",
+    }
+    r = requests.get(cb_url, timeout=8, headers=headers)
+    r.raise_for_status()
+    return r.content
+
+# Keep last good image in session_state, so 503 doesn't blank the UI
+if "last_images" not in st.session_state:
+    st.session_state.last_images = {}  # name -> bytes
+
+def render_all():
+    cols = st.columns(cols_n)
+    for i, (name, url) in enumerate(CAM_URLS):
+        with cols[i % cols_n]:
+            st.subheader(name)
+            try:
+                img = fetch_image_bytes(url)
+                st.session_state.last_images[name] = img
+                st.image(img, use_container_width=True)
+                st.caption("✅ OK")
+            except Exception as e:
+                # show last good frame if available
+                last = st.session_state.last_images.get(name)
+                if last:
+                    st.image(last, use_container_width=True)
+                    st.caption(f"⚠️ Using last good frame ({e})")
+                else:
+                    st.warning(f"No image yet ({e})")
+
+render_all()
+st.caption(f"Last update: {time.strftime('%Y-%m-%d %H:%M:%S')}")
+
+if auto:
+    time.sleep(float(refresh_s))
+    st.rerun()

requirements.txt

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+streamlit
+requests