Merge remote-tracking branch 'birdpic/feature/display-mode-today' into avian-visitors

Lightweight server on port 8080 that accepts POST /refresh and
starts birdframe.service. Runs as a systemd service so the web
UI's Refresh Now button can trigger immediate display updates.

Co-Authored-By: Claude Opus 4 <noreply@anthropic.com>

frame/display.py

@@ -45,6 +45,9 @@ DEFAULTS = {
     "bw_days": 7,           # BirdWeather lookback window, in days
     "bw_country": "us",     # geocoder country for the ZIP
     "hours": 24,
+    "mode": "window",           # "window" = rolling hours; "today" = daily reset
+    "start_time": "06:00",      # "today" mode: collage resets at this time
+    "hold_overnight": True,     # "today" mode: keep overnight collage until first bird
     "image": "",            # local PNG written by the shooter
     "image_url": "",        # or a published screenshot URL
     "shoot": False,         # or capture inline (needs a browser; the 3 A+ and Zero 2 W both handle it)
@@ -109,6 +112,55 @@ def fetch_species(cfg, auth=None):
     return fetch_recent(cfg["base_url"], cfg["hours"], cfg["timeout"], auth)
 
 
+def _today_hours(cfg):
+    """Compute the hours window for 'today' mode.
+
+    Returns hours since start_time today (or since yesterday's start_time
+    if we haven't reached it yet today).
+    """
+    now = datetime.now()
+    parts = cfg["start_time"].split(":")
+    start_h, start_m = int(parts[0]), int(parts[1]) if len(parts) > 1 else 0
+    start_today = now.replace(hour=start_h, minute=start_m, second=0, microsecond=0)
+
+    if now < start_today:
+        from datetime import timedelta
+        yesterday_start = start_today - timedelta(days=1)
+        hours = (now - yesterday_start).total_seconds() / 3600
+        return max(1, hours)
+
+    hours = (now - start_today).total_seconds() / 3600
+    return max(1, hours)
+
+
+def fetch_remote_config(base, timeout, auth=None):
+    """Fetch frame config from the BirdNET server's frame_config endpoint."""
+    url = f"{base.rstrip('/')}/avian/api/birdnet-api.php?action=frame_config"
+    req = urllib.request.Request(url, headers={"User-Agent": "AvianVisitors-frame/1.0"})
+    if auth:
+        req.add_header("Authorization", auth)
+    try:
+        with urllib.request.urlopen(req, timeout=timeout) as r:
+            return json.loads(r.read(100_000))
+    except Exception as e:
+        print(f"remote config fetch failed: {e}", file=sys.stderr)
+        return None
+
+
+DISPLAY_KEYS = (
+    "mode", "hours", "start_time", "shoot_title", "shoot_subtitle",
+    "shoot_headline_px", "shoot_eyebrow_px", "shoot_lowercase",
+    "shoot_mat", "shoot_small_floor", "shoot_count_exp",
+    "mat", "mat_opening_w", "mat_opening_h", "rotate", "saturation",
+)
+
+
+def config_signature(cfg):
+    """Hash of display-affecting config values."""
+    items = [(k, cfg.get(k)) for k in DISPLAY_KEYS]
+    return hashlib.sha256(json.dumps(items).encode()).hexdigest()[:16]
+
+
 # --- image ------------------------------------------------------------------
 def get_image(src, timeout, auth=None):
     if re.match(r"^https?://", src):
@@ -295,15 +347,15 @@ def load_state(path):
         with open(os.path.expanduser(path)) as f:
             return json.load(f)
     except Exception:
-        return {"signature": None, "last_refresh": 0}
+        return {"signature": None, "last_refresh": 0, "config_sig": None}
 
 
-def save_state(path, sig, when):
+def save_state(path, sig, when, cfg_sig=None):
     path = os.path.expanduser(path)
     os.makedirs(os.path.dirname(path) or ".", exist_ok=True)
     tmp = path + ".tmp"
     with open(tmp, "w") as f:
-        json.dump({"signature": sig, "last_refresh": when}, f)
+        json.dump({"signature": sig, "last_refresh": when, "config_sig": cfg_sig}, f)
         f.flush()
         os.fsync(f.fileno())
     os.replace(tmp, path)  # atomic: a power cut can't leave a half-written file
@@ -317,7 +369,7 @@ def in_quiet_hours(cfg, hour):
 
 
 # --- run --------------------------------------------------------------------
-def obtain_image(cfg, species=None):
+def obtain_image(cfg, species=None, window_hours=None):
     if cfg.get("species_source") == "birdweather":
         from shoot import shoot_birdweather
         if species is None:  # gate skipped (--no-signature): fetch the list to render
@@ -335,6 +387,7 @@ def obtain_image(cfg, species=None):
               headline_px=cfg["shoot_headline_px"], eyebrow_px=cfg["shoot_eyebrow_px"],
               lowercase=cfg["shoot_lowercase"], mat=cfg["shoot_mat"],
               small_floor=cfg["shoot_small_floor"], count_exp=cfg["shoot_count_exp"], timeout_ms=cfg["timeout"] * 1000,
+              window_hours=int(window_hours) if window_hours else None,
               user=cfg["basic_user"], password=cfg["basic_pass"])
         return Image.open(out).convert("RGB")
     src = cfg["image_url"] or cfg["image"]
@@ -345,17 +398,35 @@ def obtain_image(cfg, species=None):
 
 def run(cfg, preview=None, force=False, use_signature=True, mat_box=False):
     now = time.time()
+    remote = fetch_remote_config(cfg["base_url"], cfg["timeout"], _auth(cfg))
+    if remote:
+        for k, v in remote.items():
+            if k in cfg and k not in ("state", "cache", "base_url"):
+                cfg[k] = v
     state = load_state(cfg["state"])
     sig = None
     species = None
+    window_hours = None
+    if cfg["mode"] == "today":
+        window_hours = _today_hours(cfg)
     if use_signature:
         try:
-            species = fetch_species(cfg, _auth(cfg))
+            if cfg["mode"] == "today":
+                species = fetch_recent(cfg["base_url"], max(1, int(window_hours + 0.5)), cfg["timeout"], _auth(cfg))
+                if not species and cfg["hold_overnight"]:
+                    print("today mode: no birds yet, holding overnight collage")
+                    return
+            else:
+                species = fetch_species(cfg, _auth(cfg))
             sig = signature(species)
         except Exception as e:
             print(f"signature fetch failed: {e}", file=sys.stderr)  # treat as no change
+    cfg_sig = config_signature(cfg)
+    config_changed = cfg_sig != state.get("config_sig")
+    if config_changed and not force and not preview:
+        print("config changed; forcing refresh")
     heal_due = now - state.get("last_refresh", 0) >= cfg["heal_hours"] * 3600
-    changed = (not use_signature) or (sig is not None and sig != state.get("signature"))
+    changed = config_changed or (not use_signature) or (sig is not None and sig != state.get("signature"))
     if not force and not preview:
         if in_quiet_hours(cfg, datetime.now().hour):
             print("quiet hours; skip")
@@ -366,7 +437,7 @@ def run(cfg, preview=None, force=False, use_signature=True, mat_box=False):
         print("refresh:", "changed" if changed else "heal")
 
     try:
-        img = fit_panel(obtain_image(cfg, species))
+        img = fit_panel(obtain_image(cfg, species, window_hours))
     except Exception as e:
         print(f"could not get image: {e}", file=sys.stderr)  # keep last panel image
         return
@@ -384,7 +455,7 @@ def run(cfg, preview=None, force=False, use_signature=True, mat_box=False):
     except Exception as e:
         print(f"panel push failed: {e}", file=sys.stderr)
         return
-    save_state(cfg["state"], sig if sig is not None else state.get("signature"), now)
+    save_state(cfg["state"], sig if sig is not None else state.get("signature"), now, cfg_sig)
     print("panel updated")
 
 

frame/trigger.py

@@ -0,0 +1,36 @@
+#!/usr/bin/env python3
+"""Tiny HTTP server that triggers a birdframe refresh on demand."""
+
+import http.server
+import subprocess
+import json
+
+PORT = 8080
+
+class Handler(http.server.BaseHTTPRequestHandler):
+    def do_POST(self):
+        if self.path == "/refresh":
+            subprocess.Popen(["systemctl", "start", "birdframe.service"])
+            self.send_response(200)
+            self.send_header("Content-Type", "application/json")
+            self.send_header("Access-Control-Allow-Origin", "*")
+            self.end_headers()
+            self.wfile.write(json.dumps({"status": "triggered"}).encode())
+        else:
+            self.send_response(404)
+            self.end_headers()
+
+    def do_OPTIONS(self):
+        self.send_response(204)
+        self.send_header("Access-Control-Allow-Origin", "*")
+        self.send_header("Access-Control-Allow-Methods", "POST, OPTIONS")
+        self.send_header("Access-Control-Allow-Headers", "Content-Type")
+        self.end_headers()
+
+    def log_message(self, fmt, *args):
+        pass
+
+if __name__ == "__main__":
+    server = http.server.HTTPServer(("0.0.0.0", PORT), Handler)
+    print(f"frame-trigger listening on :{PORT}")
+    server.serve_forever()