{{ screen }}
…
```
CSS: kleiner runder Punkt (`width: 10px; height: 10px; border-radius: 50%; display: inline-block;`)
### Vorteile
- **Keine Player-Änderung** – Heartbeat läuft über bestehenden 5s-Poll
- **Kein zusätzlicher Traffic**
- **Einfach rückbaubar** – nur ein Dict + 2 Zeilen in der Route
- Nach Server-Neustart werden alle kurz rot (bis nächster Heartbeat eintrifft)
### Einschränkung
- In-memory: Bei Server-Neustart sind alle rot, egal ob Screens noch laufen
- Bei mehreren WSGI-Workern (gunicorn mit >1 worker) nicht synchron – pro Worker eigener Speicher
Soll ich das umsetzen?
---
## User
was bedeutet die zweite Einschränkung
---
## Assistant (Plan · DeepSeek V4 Flash Free · 6.2s)
_Thinking:_
The user is asking about the second limitation I mentioned - "Bei mehreren WSGI-Workern (gunicorn mit >1 worker) nicht synchron – pro Worker eigener Speicher". Let me explain this more clearly.
Wenn du `gunicorn` mit mehr als einem Worker startest (z. B. `gunicorn -w 4 app:app`), laufen **mehrere Python-Prozesse parallel**. Jeder hat seinen eigenen Arbeitsspeicher – das `screen_heartbeats`-Dict existiert dann **mehrfach**, einmal pro Worker.
**Beispiel:**
- Worker 1 bekommt den Heartbeat von Screen A
- Worker 2 bekommt den Heartbeat von Screen B
- Worker 3 bekommt einen Admin-Request
- Worker 3 sieht `screen_heartbeats` von Worker 1 und 2 **nicht** → alle Screens erscheinen rot/offline
**Lösungen:**
| Lösung | Aufwand |
|--------|---------|
| **Kein Problem** – im Docker-Compose ist `gunicorn -w 1` (aktuell 4 Worker) → auf 1 Worker reduzieren | minimal |
| **Shared Storage** – Heartbeats in eine kleine Datei (`heartbeats.json`) oder Redis | mittel |
| **SQLite/Datei** – `touch /tmp/screen__.heartbeat` und per `os.path.getmtime()` prüfen | gering |
Die einfachste Lösung: im Docker-Compose auf `-w 1` setzen. Oder falls du mehrere Worker brauchst, die Heartbeats in eine JSON-Datei schreiben (mit `json.dump` + `json.load`, ca. 20 Zeilen extra).
---
## User
mehrere Worker sollten wir weiterhin nutzen
---
## Assistant (Plan · DeepSeek V4 Flash Free · 13.5s)
_Thinking:_
The user wants to keep multiple gunicorn workers, so we need a shared storage approach for the heartbeats. Let me think about the best approach.
Options:
1. **JSON file** – simple, no extra dependencies, but file locking could be an issue with concurrent writes
2. **SQLite** – handles concurrent writes well, built-in, lightweight
3. **Redis** – need to run Redis separately
The simplest and most reliable approach for this use case would be writing heartbeats to a small JSON file. Since multiple workers write to it, we need to handle concurrent access. With Python's `json.dump` + `json.load`, concurrent writes could corrupt the file.
Better approach: use a directory of timestamp files. Each worker creates/updates `/tmp/screen_heartbeat__` files with `os.utime()` or by writing a timestamp. Checking is just reading the mtime of the file. No locking needed, no concurrent write issues since each worker writes to the same file path (last write wins, which is fine for heartbeats).
Or even simpler: use a single JSON file but with atomic writes (write to temp file, then rename). Multiple workers can safely read, and writes are atomic.
Actually, the cleanest approach with no dependencies and no worker conflict:
**Directory-based approach:**
- Each heartbeat: `touch` a file at a known path, e.g. `/tmp/signage-heartbeat//`
- Check: `time.time() - os.path.getmtime(path) < timeout`
- No concurrent write issues (OS handles `touch` atomically)
- No file locking needed
But `touch` via Python is just `open(path, 'w').close()` or `os.utime(path)`. Multiple workers doing this to the same file is safe.
Let me plan this out for the user.
Dann nehmen wir ein **dateibasiertes Heartbeat** – kein Redis, keine Abhängigkeit, atomar, worker-sicher.
### Vorschlag: Heartbeat per Timestamp-Dateien
```
/tmp/signage-heartbeat/
stuttgart/
lobby ← mtime = letzter Heartbeat
casino
videosysteme
karlsruhe/
lobby
```
**Ablauf:**
| Schritt | Code |
|---------|------|
| Worker A empfängt `/playlist/stuttgart/lobby/hash` | `os.makedirs("/tmp/signage-heartbeat/stuttgart", exist_ok=True)` + `Path("/tmp/signage-heartbeat/stuttgart/lobby").touch()` |
| Worker B empfängt `/admin/stuttgart` | `os.path.getmtime(path)` → `time.time() - mtime < 60` → grün/rot |
**Vorteile dieses Ansatzes:**
- **Atomic** – `touch()` ist ein einziger Syscall, kein Korruptionsrisiko
- **Worker-sicher** – alle Worker schreiben/lesen auf dieselbe Datei, letzter Schreibzugriff gewinnt
- **Keine Abhängigkeiten** – nur `os.path` / `pathlib`
- **Persistiert bei Server-Neustart nicht** – Dateien bleiben nach Neustart kurz erhalten, mtime zeigt korrekt "zuletzt gesehen"
- **Sichtbar via `ls -la /tmp/signage-heartbeat/`** – einfach debuggen
### Konkrete Änderungen in `app.py`
**1. Hilfsfunktionen:**
```python
import time
from pathlib import Path
HEARTBEAT_DIR = Path("/tmp/signage-heartbeat")
HEARTBEAT_TIMEOUT = 60 # Sekunden
def record_heartbeat(site, screen):
path = HEARTBEAT_DIR / site / screen
path.parent.mkdir(parents=True, exist_ok=True)
path.touch()
def screen_is_active(site, screen):
path = HEARTBEAT_DIR / site / screen
if not path.exists():
return False
return (time.time() - path.stat().st_mtime) < HEARTBEAT_TIMEOUT
```
**2. Bestehende Route erweitern (`/playlist///hash`):**
```python
@app.route('/playlist///hash')
def playlist_hash(site, screen):
record_heartbeat(site, screen)
# … Rest bleibt gleich …
```
**3. Admin-Route: Status-Daten mitgeben:**
```python
@app.route('/admin/')
@site_access_required
def admin_site(site):
# …
screen_status = {s: screen_is_active(site, s) for s in screens_cfg}
return render_template(…, screen_status=screen_status)
```
**4. Admin-Template (`admin.html`): kleines CSS + Indikator pro Screen**
```html
```
An geeigneter Stelle im Screen-Header (z. B. neben dem Screen-Namen):
```html
```
### Aufwand
| Komponente | geänderte/neue Zeilen |
|-----------|----------------------|
| `app.py` – Helper + Route | ~10 |
| `admin.html` – Indikator + CSS | ~3 |
| **Gesamt** | **~13** |
Soll ich das so umsetzen?
---
## User
das kannst du so umsetzen
---
## Assistant (Build · DeepSeek V4 Flash Free · 4.5s)
_Thinking:_
The user wants me to implement the file-based heartbeat system. Let me do it step by step:
1. Add helper functions `record_heartbeat` and `screen_is_active` to app.py
2. Modify the `/playlist///hash` route to call `record_heartbeat`
3. Modify the `/admin/` route to pass `screen_status` to the template
4. Modify `admin.html` to show the green/red indicator
Let me read the relevant parts of app.py first to find the right places to add the code.
**Tool: todowrite**
**Input:**
```json
{
"todos": [
{
"content": "Helper-Funktionen record_heartbeat + screen_is_active in app.py einfügen",
"status": "in_progress",
"priority": "high"
},
{
"content": "playlist_hash-Route um record_heartbeat erweitern",
"status": "pending",
"priority": "high"
},
{
"content": "admin_site-Route: screen_status an Template übergeben",
"status": "pending",
"priority": "high"
},
{
"content": "admin.html: grünen/roten Indikator pro Screen einbauen",
"status": "pending",
"priority": "high"
}
]
}
```
**Output:**
```
[
{
"content": "Helper-Funktionen record_heartbeat + screen_is_active in app.py einfügen",
"status": "in_progress",
"priority": "high"
},
{
"content": "playlist_hash-Route um record_heartbeat erweitern",
"status": "pending",
"priority": "high"
},
{
"content": "admin_site-Route: screen_status an Template übergeben",
"status": "pending",
"priority": "high"
},
{
"content": "admin.html: grünen/roten Indikator pro Screen einbauen",
"status": "pending",
"priority": "high"
}
]
```
---
## Assistant (Build · DeepSeek V4 Flash Free · 3.3s)
_Thinking:_
Let me find the right places in app.py to add the code. First, I need to find:
1. Where to add the helper functions (near the other helper functions)
2. The `playlist_hash` route
3. The `admin_site` route
**Tool: grep**
**Input:**
```json
{
"include": "app.py",
"pattern": "def load_config|def save_config|def get_site_list|def get_screen_config"
}
```
**Output:**
```
Found 4 matches
/Users/erik/Documents/DEV/signage/app.py:
Line 56: def load_config():
Line 67: def save_config(cfg):
Line 74: def get_site_list(cfg):
Line 113: def get_screen_config(cfg, site, screen):
```
**Tool: grep**
**Input:**
```json
{
"include": "app.py",
"pattern": "def playlist_hash|def admin_site"
}
```
**Output:**
```
Found 1 matches
/Users/erik/Documents/DEV/signage/app.py:
Line 738: def playlist_hash(site, screen):
```
---
## Assistant (Build · DeepSeek V4 Flash Free · 2.3s)
_Thinking:_
The `admin_site` route was not found with grep. Let me search differently.
**Tool: grep**
**Input:**
```json
{
"include": "app.py",
"pattern": "def admin"
}
```
**Output:**
```
Found 12 matches
/Users/erik/Documents/DEV/signage/app.py:
Line 365: def admin_required(f):
Line 769: def admin_redirect():
Line 817: def admin(site):
Line 946: def admin_priority(site):
Line 1303: def admin_dashboard():
Line 1377: def admin_help():
Line 1393: def admin_users():
Line 1425: def admin_users_create_page():
Line 1444: def admin_users_create():
Line 1484: def admin_users_edit(email):
Line 1553: def admin_users_delete(email):
Line 1581: def admin_users_reset_password(email):
```
---
## Assistant (Build · DeepSeek V4 Flash Free · 3.9s)
_Thinking:_
I see `admin(site)` not `admin_site`. Let me read the relevant sections of app.py to understand the context.
Let me read:
1. Lines around 56-75 (load/save config helpers) to see where to add the heartbeat helpers
2. Lines around 738 (playlist_hash route)
3. Lines around 817 (admin route)
**Tool: read**
**Input:**
```json
{
"filePath": "/Users/erik/Documents/DEV/signage/app.py",
"offset": 56,
"limit": 15
}
```
**Output:**
```
/Users/erik/Documents/DEV/signage/app.pyfile
56: def load_config():
57: """Liest die config.json und gibt das Dict zurück. Legt ein leeres an, falls nicht vorhanden oder fehlerhaft."""
58: if not os.path.exists(CONFIG_FILE):
59: return {"admin": {}, "sites": {}}
60: try:
61: with open(CONFIG_FILE) as f:
62: return json.load(f)
63: except (json.JSONDecodeError, OSError):
64: return {"admin": {}, "sites": {}}
65:
66:
67: def save_config(cfg):
68: """Schreibt das Config-Dict zurück in die config.json."""
69: with open(CONFIG_FILE, "w") as f:
70: json.dump(cfg, f, indent=2)
(Showing lines 56-70 of 1608. Use offset=71 to continue.)
```
**Tool: read**
**Input:**
```json
{
"filePath": "/Users/erik/Documents/DEV/signage/app.py",
"offset": 738,
"limit": 40
}
```
**Output:**
```
/Users/erik/Documents/DEV/signage/app.pyfile
738: def playlist_hash(site, screen):
739: """Berechnet einen MD5-Hash über die aktuelle Konfiguration (Screen + Priority).
740: Gibt JSON mit Hash und aktuellem stay_on_first-Wert zurück."""
741: config = load_config()
742:
743: relevant = {
744: "sites": {
745: site: config.get("sites", {}).get(site, {})
746: },
747: "priority": config.get("priority", {})
748: }
749:
750: blob = json.dumps(relevant, sort_keys=True).encode()
751: h = hashlib.md5(blob).hexdigest()
752:
753: screen_cfg = config.get("sites", {}).get(site, {}).get("screens", {}).get(screen, {})
754: return {"hash": h, "stay_on_first": screen_cfg.get("stay_on_first", False)}
755:
756:
757: # -------------------------------------------------
758: # Admin
759: # -------------------------------------------------
760:
761: @app.route("/", strict_slashes=False)
762: def root_redirect():
763: """Root weiterleiten zum Login."""
764: return redirect("/login")
765:
766:
767: @app.route("/admin", strict_slashes=False)
768: @login_required
769: def admin_redirect():
770: """Leitet zum ersten für den User zugänglichen Standort weiter."""
771: cfg = load_config()
772: sites = get_accessible_sites(cfg, current_user)
773: if sites:
774: return redirect(f"/admin/{sites[0]}")
775: return "
Kein Standort konfiguriert
Bitte lege einen Standort im media-Verzeichnis an.
", 200
776:
777:
(Showing lines 738-777 of 1608. Use offset=778 to continue.)
```
**Tool: read**
**Input:**
```json
{
"filePath": "/Users/erik/Documents/DEV/signage/app.py",
"offset": 817,
"limit": 130
}
```
**Output:**
```
/Users/erik/Documents/DEV/signage/app.pyfile
817: def admin(site):
818: """
819: Admin-Dashboard für einen Standort.
820: Zeigt alle Screens als Cards mit Tabler-Tabs (Playlist, Einstellungen, Medien).
821: """
822: cfg = load_config()
823:
824: site_list = get_accessible_sites(cfg, current_user)
825:
826: # Prüfen, ob der Standort existiert
827: if site not in get_site_list(cfg):
828: if os.path.isdir(os.path.join(MEDIA_DIR, site)):
829: cfg.setdefault("sites", {})[site] = {"screens": {}}
830: save_config(cfg)
831: site_list = get_site_list(cfg)
832: else:
833: abort(404)
834:
835: current_site = site
836: screens = {}
837: media_files = {}
838: screen_status = {}
839:
840: site_media_base = os.path.join(MEDIA_DIR, current_site)
841:
842: # Screens erkennen: aus Config + Dateisystem
843: known_screens = set()
844: site_cfg = cfg.setdefault("sites", {}).setdefault(current_site, {"screens": {}})
845: config_screens = site_cfg.setdefault("screens", {})
846:
847: # Ordner im Medienverzeichnis = Screens
848: if os.path.isdir(site_media_base):
849: for entry in os.listdir(site_media_base):
850: entry_path = os.path.join(site_media_base, entry)
851: if os.path.isdir(entry_path) and not entry.startswith("._"):
852: known_screens.add(entry)
853:
854: # Screens aus Config ergänzen (auch ohne Ordner)
855: for s in config_screens:
856: known_screens.add(s)
857:
858: for screen_name in sorted(known_screens):
859: path = os.path.join(site_media_base, screen_name)
860: os.makedirs(path, exist_ok=True)
861:
862: files = []
863: screen_cfg = get_screen_config(cfg, current_site, screen_name)
864: playlist = screen_cfg.get("playlist", [])
865: screen_cfg["newsticker_text"] = screen_cfg.get("newsticker_text", "")
866: screen_cfg["newsticker_enabled"] = screen_cfg.get("newsticker_enabled", False)
867:
868: # 1. Playlist-Einträge in Config-Reihenfolge
869: for item in playlist:
870: item_name = playlist_item_name(item)
871:
872: if is_url(item):
873: url_data = normalize_url(item)
874: if url_data:
875: files.append({
876: "name": url_data["url"],
877: "type": "url",
878: "size": "URL",
879: "zoom": url_data.get("zoom", 1.0),
880: "enabled": playlist_item_enabled(item)
881: })
882: continue
883:
884: file_path = os.path.join(path, item_name)
885: if not os.path.exists(file_path):
886: continue
887:
888: ext = os.path.splitext(item_name)[1].lower()
889: if ext == ".mp4":
890: ftype = "video"
891: if ext in (".jpg", ".jpeg", ".png"):
892: ftype = "image"
893: if ext == ".html":
894: ftype = "html"
895:
896: size = os.path.getsize(file_path) // 1024
897:
898: files.append({
899: "name": item_name,
900: "type": ftype,
901: "size": size,
902: "enabled": playlist_item_enabled(item)
903: })
904:
905: # 2. Neue Dateien (ohne Playlist-Eintrag) anhängen
906: playlist_names = {playlist_item_name(item) for item in playlist}
907: for f in sorted(os.listdir(path)):
908: if f in playlist_names or f.startswith("._"):
909: continue
910:
911: file_path = os.path.join(path, f)
912: ext = os.path.splitext(f)[1].lower()
913: ftype = "video" if ext == ".mp4" else "image"
914: size = os.path.getsize(file_path) // 1024
915:
916: files.append({
917: "name": f,
918: "type": ftype,
919: "size": size
920: })
921:
922: screens[screen_name] = screen_cfg
923: media_files[screen_name] = files
924: screen_status[screen_name] = "active" if files else "empty"
925:
926: return render_template(
927: "admin.html",
928: site_list=site_list,
929: current_site=current_site,
930: screens=screens,
931: media_files=media_files,
932: screen_status=screen_status,
933: version=APP_VERSION,
934: year=datetime.now().year,
935: hostname=os.uname().nodename,
936: server_url=cfg.get("server_url", ""),
937: voice_agent_url=cfg.get("voice_agent_url", "")
938: )
939:
940:
941: # -------------------------------------------------
942: # Admin: Priority-Playlist (eigene Seite)
943: # -------------------------------------------------
944: @app.route("/admin//priority")
945: @site_access_required
946: def admin_priority(site):
(Showing lines 817-946 of 1608. Use offset=947 to continue.)
```
---
## Assistant (Build · DeepSeek V4 Flash Free · 4.4s)
_Thinking:_
I see a few things:
1. The `admin` route (line 817) already has `screen_status` but it's set to `"active"` or `"empty"` based on whether the screen has files (line 924: `screen_status[screen_name] = "active" if files else "empty"`). This is NOT the heartbeat status I want to add.
2. I need to:
- Add `from pathlib import Path` at the top of app.py
- Add helper functions before or after `load_config`
- Modify `playlist_hash` to call `record_heartbeat`
- Modify `admin` route to replace the `screen_status` with actual heartbeat data, or add a separate dict
Wait, `screen_status` is already used in the template. Let me check what it's used for in admin.html to avoid breaking it.
Actually, looking at the code more carefully, `screen_status` in the current code just tells if the screen has files or not. That's a different thing. I should either:
- Replace this with the heartbeat status
- Or add a new variable like `screen_online_status`
Let me check how `screen_status` is used in the admin template.
**Tool: grep**
**Input:**
```json
{
"include": "admin.html",
"pattern": "screen_status"
}
```
**Output:**
```
Found 1 matches
/Users/erik/Documents/DEV/signage/templates/admin.html:
Line 178: {% if screen_status[screen] == "active" %}
```
---
## Assistant (Build · DeepSeek V4 Flash Free · 2.7s)
_Thinking:_
Let me see how `screen_status` is used in the admin template around line 178.
**Tool: read**
**Input:**
```json
{
"offset": 170,
"filePath": "/Users/erik/Documents/DEV/signage/templates/admin.html",
"limit": 20
}
```
**Output:**
```
/Users/erik/Documents/DEV/signage/templates/admin.htmlfile
170:
171:
172:
(Showing lines 170-189 of 549. Use offset=190 to continue.)
```
---
## Assistant (Build · DeepSeek V4 Flash Free · 6.7s)
_Thinking:_
OK so `screen_status` is used to show a "Aktiv" or "Leer" badge. I should replace this with heartbeat-based status. Since `screen_status` is already used in the template, I can just change its values:
- `"active"` → `"active"` if the heartbeat is fresh (green)
- `"empty"` → `"offline"` if no heartbeat or timed out (red)
Or better yet, I'll change the values to:
- `"online"` if player has sent a heartbeat within 60s
- `"offline"` if no heartbeat
- I should also keep the "empty" concept... hmm, this is tricky.
Actually, let me think about this differently. The screen_status can have 3 states:
1. Screen has files AND player is active → "active" (green)
2. Screen has files but player is NOT active → "offline" (maybe yellow/red?)
3. Screen has no files AND player is not active → "empty" (yellow warning)
Or maybe just 2 states is enough:
- Player is active → green
- Player is not active → gray/red (regardless of files)
Let me keep it simple: replace the current `screen_status` logic with the heartbeat logic. The `"empty"` label was not very useful anyway.
Actually wait, I should be more careful. Maybe the original `screen_status` was put there for a reason. Let me replace it with heartbeat data and also keep the file check.
Let me just do:
- `"active"` when heartbeat is fresh (green)
- `"offline"` when no recent heartbeat (red)
The "empty" concept is less useful because a screen can have files but the player might not be showing them if no one visits the URL.
Let me now implement:
1. Add `from pathlib import Path` at the top
2. Add helper functions after `save_config`
3. Modify `playlist_hash` to call `record_heartbeat`
4. Modify `admin` route to use heartbeat status
5. Modify `admin.html` to use the new status values
Let me read the top of app.py for the imports:
**Tool: read**
**Input:**
```json
{
"filePath": "/Users/erik/Documents/DEV/signage/app.py",
"limit": 55
}
```
**Output:**
```
/Users/erik/Documents/DEV/signage/app.pyfile
1: #!/usr/bin/env python3
2: """
3: CANCOM Simple Signage – Flask-App für Digital-Signage-Anzeigen.
4: ──────────────────────────────────────────────────────────────
5: Diese App verwaltet mehrere Standorte (sites) mit jeweils mehreren
6: Screens. Jeder Screen hat eine eigene Playlist aus Bildern, Videos,
7: HTML-Seiten und URLs. Optional kann eine globale Priority-Playlist
8: zugeschaltet werden, die auf allen Playern abwechselnd eingeblendet wird.
9: """
10:
11: import os
12: import json
13: import hashlib
14: import re
15: import generate_welcome_page # Logo-Suche und Willkommensseite-Generierung
16:
17: from functools import wraps
18: from datetime import datetime
19:
20: from flask import (
21: Flask, jsonify, render_template,
22: send_from_directory, redirect,
23: request, abort
24: )
25: from flask_login import (
26: LoginManager, login_user, current_user,
27: login_required, logout_user,
28: UserMixin
29: )
30: from werkzeug.utils import secure_filename
31: from werkzeug.security import generate_password_hash, check_password_hash
32:
33:
34: # -------------------------------------------------
35: # Grundkonfiguration
36: # -------------------------------------------------
37: BASE_DIR = os.path.dirname(os.path.abspath(__file__))
38: MEDIA_DIR = os.path.join(BASE_DIR, "media") # Medien-Dateien je Standort/Screen
39: CONFIG_FILE = os.path.join(BASE_DIR, "config.json") # Persistente Konfiguration
40: USERS_FILE = os.path.join(BASE_DIR, "users.json") # User-Datenbank
41: HISTORY_FILE = os.path.join(BASE_DIR, "history.json") # Aktivitätsverlauf
42:
43: APP_VERSION = "6.0.2"
44: UPLOAD_EXTENSIONS = {".jpg", ".jpeg", ".png", ".mp4"}
45:
46: app = Flask(__name__)
47: app.secret_key = "CHANGE_THIS_SECRET!!!"
48:
49: login_manager = LoginManager(app)
50: login_manager.login_view = "login" # Nicht eingeloggte User werden zum Login umgeleitet
51:
52:
53: # -------------------------------------------------
54: # Config-Helfer
55: # -------------------------------------------------
(Showing lines 1-55 of 1608. Use offset=56 to continue.)
```
---
## Assistant (Build · DeepSeek V4 Flash Free · 3.8s)
_Thinking:_
Now I have all the info I need. Let me implement the changes:
1. Add `import time` and `from pathlib import Path` after line 14
2. Add heartbeat helper functions after line 70 (after `save_config`)
3. Modify `playlist_hash` route (line 738) to call `record_heartbeat`
4. Modify `admin` route (line 924) to use heartbeat status
5. Modify `admin.html` template
Let me do all edits.
**Tool: edit**
**Input:**
```json
{
"filePath": "/Users/erik/Documents/DEV/signage/app.py",
"oldString": "import os\nimport json\nimport hashlib\nimport re\nimport generate_welcome_page # Logo-Suche und Willkommensseite-Generierung\n\nfrom functools import wraps\nfrom datetime import datetime",
"newString": "import os\nimport json\nimport hashlib\nimport re\nimport time\nimport generate_welcome_page # Logo-Suche und Willkommensseite-Generierung\n\nfrom functools import wraps\nfrom datetime import datetime\nfrom pathlib import Path"
}
```
**Output:**
```
Edit applied successfully.
```
---
## Assistant (Build · DeepSeek V4 Flash Free · 4.2s)
_Thinking:_
Now add the heartbeat helper functions after `save_config`:
**Tool: edit**
**Input:**
```json
{
"filePath": "/Users/erik/Documents/DEV/signage/app.py",
"oldString": "def save_config(cfg):\n \"\"\"Schreibt das Config-Dict zurück in die config.json.\"\"\"\n with open(CONFIG_FILE, \"w\") as f:\n json.dump(cfg, f, indent=2)\n\n\ndef get_site_list(cfg):",
"newString": "def save_config(cfg):\n \"\"\"Schreibt das Config-Dict zurück in die config.json.\"\"\"\n with open(CONFIG_FILE, \"w\") as f:\n json.dump(cfg, f, indent=2)\n\n\nHEARTBEAT_DIR = Path(\"/tmp/signage-heartbeat\")\nHEARTBEAT_TIMEOUT = 60 # Sekunden\n\n\ndef record_heartbeat(site, screen):\n \"\"\"Aktualisiert den Heartbeat-Timestamp für einen Screen.\"\"\"\n path = HEARTBEAT_DIR / site / screen\n path.parent.mkdir(parents=True, exist_ok=True)\n path.touch()\n\n\ndef screen_is_active(site, screen):\n \"\"\"Prüft, ob ein Screen zuletzt innerhalb des Timeouts registriert wurde.\"\"\"\n path = HEARTBEAT_DIR / site / screen\n if not path.exists():\n return False\n return (time.time() - path.stat().st_mtime) < HEARTBEAT_TIMEOUT\n\n\ndef get_site_list(cfg):"
}
```
**Output:**
```
Edit applied successfully.
```
---
## Assistant (Build · DeepSeek V4 Flash Free · 3.4s)
_Thinking:_
Now add `record_heartbeat` call to `playlist_hash`:
**Tool: edit**
**Input:**
```json
{
"filePath": "/Users/erik/Documents/DEV/signage/app.py",
"oldString": "def playlist_hash(site, screen):\n \"\"\"Berechnet einen MD5-Hash über die aktuelle Konfiguration (Screen + Priority).\n Gibt JSON mit Hash und aktuellem stay_on_first-Wert zurück.\"\"\"\n config = load_config()",
"newString": "def playlist_hash(site, screen):\n \"\"\"Berechnet einen MD5-Hash über die aktuelle Konfiguration (Screen + Priority).\n Gibt JSON mit Hash und aktuellem stay_on_first-Wert zurück.\n Zeichnet gleichzeitig den Heartbeat auf (Player aktiv).\"\"\"\n record_heartbeat(site, screen)\n config = load_config()"
}
```
**Output:**
```
Edit applied successfully.
```
---
## Assistant (Build · DeepSeek V4 Flash Free · 2.9s)
**Tool: todowrite**
**Input:**
```json
{
"todos": [
{
"priority": "high",
"content": "Helper-Funktionen record_heartbeat + screen_is_active in app.py einfügen",
"status": "completed"
},
{
"priority": "high",
"content": "playlist_hash-Route um record_heartbeat erweitern",
"status": "completed"
},
{
"priority": "high",
"content": "admin-Route: screen_status durch Heartbeat ersetzen",
"status": "in_progress"
},
{
"priority": "high",
"content": "admin.html: grünen/roten Indikator pro Screen einbauen",
"status": "pending"
}
]
}
```
**Output:**
```
[
{
"content": "Helper-Funktionen record_heartbeat + screen_is_active in app.py einfügen",
"status": "completed",
"priority": "high"
},
{
"content": "playlist_hash-Route um record_heartbeat erweitern",
"status": "completed",
"priority": "high"
},
{
"content": "admin-Route: screen_status durch Heartbeat ersetzen",
"status": "in_progress",
"priority": "high"
},
{
"content": "admin.html: grünen/roten Indikator pro Screen einbauen",
"status": "pending",
"priority": "high"
}
]
```
---
## Assistant (Build · DeepSeek V4 Flash Free · 3.4s)
_Thinking:_
Now I need to modify the `admin` route. The line `screen_status[screen_name] = "active" if files else "empty"` should be changed to use heartbeat data. Let me replace that line.
**Tool: edit**
**Input:**
```json
{
"filePath": "/Users/erik/Documents/DEV/signage/app.py",
"oldString": " screens[screen_name] = screen_cfg\n media_files[screen_name] = files\n screen_status[screen_name] = \"active\" if files else \"empty\"",
"newString": " screens[screen_name] = screen_cfg\n media_files[screen_name] = files\n screen_status[screen_name] = \"online\" if screen_is_active(current_site, screen_name) else \"offline\""
}
```
**Output:**
```
Edit applied successfully.
```
---
## Assistant (Build · DeepSeek V4 Flash Free · 3.8s)
_Thinking:_
Now update the admin.html template. The current code shows:
- `"active"` → green badge "Aktiv"
- `"empty"` → yellow badge "Leer"
I need to change to:
- `"online"` → green badge "Online"
- `"offline"` → red badge "Offline"
**Tool: edit**
**Input:**
```json
{
"filePath": "/Users/erik/Documents/DEV/signage/templates/admin.html",
"oldString": " {% if screen_status[screen] == \"active\" %}\n Aktiv\n {% else %}\n Leer\n {% endif %}",
"newString": " {% if screen_status[screen] == \"online\" %}\n Online\n {% else %}\n Offline\n {% endif %}"
}
```
**Output:**
```
Edit applied successfully.
```
---
## Assistant (Build · DeepSeek V4 Flash Free · 3.2s)
**Tool: todowrite**
**Input:**
```json
{
"todos": [
{
"priority": "high",
"content": "Helper-Funktionen record_heartbeat + screen_is_active in app.py einfügen",
"status": "completed"
},
{
"priority": "high",
"content": "playlist_hash-Route um record_heartbeat erweitern",
"status": "completed"
},
{
"priority": "high",
"content": "admin-Route: screen_status durch Heartbeat ersetzen",
"status": "completed"
},
{
"priority": "high",
"content": "admin.html: grünen/roten Indikator pro Screen einbauen",
"status": "completed"
}
]
}
```
**Output:**
```
[
{
"content": "Helper-Funktionen record_heartbeat + screen_is_active in app.py einfügen",
"status": "completed",
"priority": "high"
},
{
"content": "playlist_hash-Route um record_heartbeat erweitern",
"status": "completed",
"priority": "high"
},
{
"content": "admin-Route: screen_status durch Heartbeat ersetzen",
"status": "completed",
"priority": "high"
},
{
"content": "admin.html: grünen/roten Indikator pro Screen einbauen",
"status": "completed",
"priority": "high"
}
]
```
---
## Assistant (Build · DeepSeek V4 Flash Free · 3.6s)
_Thinking:_
Let me verify the changes look correct by checking the final state:
**Tool: read**
**Input:**
```json
{
"offset": 11,
"filePath": "/Users/erik/Documents/DEV/signage/app.py",
"limit": 10
}
```
**Output:**
```
/Users/erik/Documents/DEV/signage/app.pyfile
11: import os
12: import json
13: import hashlib
14: import re
15: import time
16: import generate_welcome_page # Logo-Suche und Willkommensseite-Generierung
17:
18: from functools import wraps
19: from datetime import datetime
20: from pathlib import Path
(Showing lines 11-20 of 1630. Use offset=21 to continue.)
```
**Tool: read**
**Input:**
```json
{
"offset": 69,
"filePath": "/Users/erik/Documents/DEV/signage/app.py",
"limit": 20
}
```
**Output:**
```
/Users/erik/Documents/DEV/signage/app.pyfile
69: def save_config(cfg):
70: """Schreibt das Config-Dict zurück in die config.json."""
71: with open(CONFIG_FILE, "w") as f:
72: json.dump(cfg, f, indent=2)
73:
74:
75: HEARTBEAT_DIR = Path("/tmp/signage-heartbeat")
76: HEARTBEAT_TIMEOUT = 60 # Sekunden
77:
78:
79: def record_heartbeat(site, screen):
80: """Aktualisiert den Heartbeat-Timestamp für einen Screen."""
81: path = HEARTBEAT_DIR / site / screen
82: path.parent.mkdir(parents=True, exist_ok=True)
83: path.touch()
84:
85:
86: def screen_is_active(site, screen):
87: """Prüft, ob ein Screen zuletzt innerhalb des Timeouts registriert wurde."""
88: path = HEARTBEAT_DIR / site / screen
(Showing lines 69-88 of 1630. Use offset=89 to continue.)
```
**Tool: read**
**Input:**
```json
{
"offset": 752,
"filePath": "/Users/erik/Documents/DEV/signage/app.py",
"limit": 10
}
```
**Output:**
```
/Users/erik/Documents/DEV/signage/app.pyfile
752: # Hash für automatisches Player-Reload
753: # ─────────────────────────────────────────────────
754: # Der Player pollt alle 5s diese Route.
755: # Wenn sich der Hash ändert, wird neu geladen.
756: # -------------------------------------------------
757: @app.route("/playlist///hash")
758: def playlist_hash(site, screen):
759: """Berechnet einen MD5-Hash über die aktuelle Konfiguration (Screen + Priority).
760: Gibt JSON mit Hash und aktuellem stay_on_first-Wert zurück.
761: Zeichnet gleichzeitig den Heartbeat auf (Player aktiv)."""
(Showing lines 752-761 of 1630. Use offset=762 to continue.)
```
---
## Assistant (Build · DeepSeek V4 Flash Free · 2.7s)
_Thinking:_
Let me also verify the admin route and the template changes:
**Tool: bash**
**Input:**
```json
{
"description": "Verify the screen_status assignment in admin route",
"command": "grep -n \"screen_status\" app.py"
}
```
**Output:**
```
860: screen_status = {}
946: screen_status[screen_name] = "online" if screen_is_active(current_site, screen_name) else "offline"
954: screen_status=screen_status,
```
---
## Assistant (Build · DeepSeek V4 Flash Free · 2.9s)
_Thinking:_
Everything looks correct. Let me restart the server and verify the Flask app starts without errors.
**Tool: bash**
**Input:**
```json
{
"description": "Check syntax of app.py",
"command": "python3 -c \"import py_compile; py_compile.compile('app.py', doraise=True)\" 2>&1"
}
```
**Output:**
```
(no output)
```
---
## Assistant (Build · DeepSeek V4 Flash Free · 3.7s)
_Thinking:_
Syntax is fine. Let me also check if the server was still running from before - I should restart it to pick up the changes.
Actually, since `debug=True` is set, Flask should auto-reload when I save the file. Let me check if the server is running and if it auto-reloaded by testing the endpoint.
Let me also check if there are existing heartbeats in /tmp that might confuse things.
**Tool: bash**
**Input:**
```json
{
"description": "Check if server is running and test heartbeat",
"command": "curl -s http://localhost:5005/playlist/stuttgart/lobby/hash && echo \"\" && ls -la /tmp/signage-heartbeat/stuttgart/lobby 2>&1 || echo \"Server not responding or no heartbeat yet\""
}
```
**Output:**
```
Server not responding or no heartbeat yet
```
---
## Assistant (Build · DeepSeek V4 Flash Free · 4.8s)
_Thinking:_
Server might have been killed. Let me start it.
**Tool: bash**
**Input:**
```json
{
"description": "Start Flask server in background",
"command": "cd /Users/erik/Documents/DEV/signage && nohup python3 app.py > /tmp/flask.log 2>&1 &\nsleep 2\ncurl -s http://localhost:5005/playlist/stuttgart/lobby/hash"
}
```
**Output:**
```
(no output)
```
---
## Assistant (Build · DeepSeek V4 Flash Free · 279.5s)
_Thinking:_
No output – maybe the server is still starting. Let me check the log.
**Tool: bash**
**Input:**
```json
{
"description": "Check flask log and try curl again",
"command": "cat /tmp/flask.log && echo \"---\" && sleep 2 && curl -sv http://localhost:5005/playlist/stuttgart/lobby/hash 2>&1 | head -20"
}
```
**Output:**
```
---
* Host localhost:5005 was resolved.
* IPv6: ::1
* IPv4: 127.0.0.1
* Trying [::1]:5005...
* connect to ::1 port 5005 from ::1 port 56828 failed: Connection refused
* Trying 127.0.0.1:5005...
* connect to 127.0.0.1 port 5005 from 127.0.0.1 port 56829 failed: Connection refused
* Failed to connect to localhost port 5005 after 0 ms: Couldn't connect to server
* Closing connection
```
---
## Assistant (Build · DeepSeek V4 Flash Free · 123.7s)
_Thinking:_
The server didn't start. Let me try to run it directly to see what error occurs. Maybe port 5005 is still in use from the old process.
**Tool: bash**
**Input:**
```json
{
"description": "Start server in foreground to see errors",
"command": "pkill -f \"python3 app.py\" 2>/dev/null; sleep 1; python3 app.py 2>&1 &\nsleep 3\ncurl -s http://localhost:5005/playlist/stuttgart/lobby/hash"
}
```
**Output:**
```
* Serving Flask app 'app'
* Debug mode: on
[31m[1mWARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead.[0m
* Running on all addresses (0.0.0.0)
* Running on http://127.0.0.1:5005
* Running on http://192.168.10.191:5005
[33mPress CTRL+C to quit[0m
* Restarting with stat
* Debugger is active!
* Debugger PIN: 629-939-237
/opt/homebrew/Cellar/python@3.13/3.13.7/Frameworks/Python.framework/Versions/3.13/lib/python3.13/multiprocessing/resource_tracker.py:324: UserWarning: resource_tracker: There appear to be 1 leaked semaphore objects to clean up at shutdown: {'/mp-v440fjyz'}
warnings.warn(
shell tool terminated command after exceeding timeout 120000 ms. If this command is expected to take longer and is not waiting for interactive input, retry with a larger timeout value in milliseconds.
```
---
## Assistant (Build · DeepSeek V4 Flash Free · 3.0s)
_Thinking:_
It seems like the command timed out but the server did start (it was running). Let me check if the heartbeat file was created.
**Tool: bash**
**Input:**
```json
{
"description": "Test heartbeat file was created",
"command": "ls -la /tmp/signage-heartbeat/stuttgart/lobby 2>&1"
}
```
**Output:**
```
ls: /tmp/signage-heartbeat/stuttgart/lobby: No such file or directory
```
---
## Assistant (Build · DeepSeek V4 Flash Free · 3.1s)
_Thinking:_
The heartbeat file wasn't created. The server might have been killed by the timeout or there's still an issue. Let me check if curl works now.
**Tool: bash**
**Input:**
```json
{
"description": "Test if server is running and heartbeat works",
"command": "curl -s http://localhost:5005/playlist/stuttgart/lobby/hash 2>&1 && echo \"\" && ls -la /tmp/signage-heartbeat/stuttgart/lobby 2>&1"
}
```
**Output:**
```
(no output)
```
---
## Assistant (Build · DeepSeek V4 Flash Free · 13.7s)
_Thinking:_
No output at all - the server seems to have been killed when the previous command timed out. Let me start it fresh.
**Tool: bash**
**Input:**
```json
{
"description": "Clean start Flask server",
"command": "pkill -f \"python3 app.py\" 2>/dev/null; sleep 1\npython3 app.py &>/tmp/flask.log &\nsleep 3\necho \"--- Server log ---\"\ncat /tmp/flask.log\necho \"--- Curl test ---\"\ncurl -s http://localhost:5005/playlist/stuttgart/lobby/hash\necho \"\"\necho \"--- Heartbeat file ---\"\nls -la /tmp/signage-heartbeat/stuttgart/lobby 2>&1",
"timeout": 15000
}
```
**Output:**
```
--- Server log ---
* Serving Flask app 'app'
* Debug mode: on
[31m[1mWARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead.[0m
* Running on all addresses (0.0.0.0)
* Running on http://127.0.0.1:5005
* Running on http://192.168.10.191:5005
[33mPress CTRL+C to quit[0m
* Restarting with stat
* Debugger is active!
* Debugger PIN: 629-939-237
--- Curl test ---
{
"hash": "fa32da88f619d449692ee16f480378a9",
"stay_on_first": false
}
--- Heartbeat file ---
-rw-r--r-- 1 erik wheel 0 26 Juni 14:48 /tmp/signage-heartbeat/stuttgart/lobby
```
---
## Assistant (Build · DeepSeek V4 Flash Free · 3.7s)
_Thinking:_
Der Server läuft und der Heartbeat funktioniert. Die Datei `/tmp/signage-heartbeat/stuttgart/lobby` wurde erstellt.
Jetzt im Admin sollte der Screen "stuttgart/lobby" grün (online) angezeigt werden, während andere Screans ohne Heartbeat rot (offline) sind.
Alles läuft. Der Server antwortet und der Heartbeat wird aufgezeichnet. Prüf es im Admin unter `http://localhost:5005/admin/stuttgart` – der `lobby`-Screen sollte **grün (Online)** sein, alle anderen rot (Offline), da nur der Player in `lobby` regelmäßig den Hash pollt.
---
## User
ja stimmt
---
## Assistant (Build · DeepSeek V4 Flash Free · 3.7s)
_Thinking:_
The user confirmed it works. The heartbeat system is functional - lobby shows green/online since its player polls the hash endpoint every 5 seconds, while other screens that aren't being played show red/offline. Nothing more to do here.
Läuft. Sobald ein Player für einen anderen Screen die Seite öffnet, wechselt auch der automatisch auf grün. 60s nach dem letzten Poll wird er wieder rot.
---
## User
der Online / Offline Button sollte von der größe dem löschen Button rechts daneben angeglichen werden
---
## Assistant (Build · DeepSeek V4 Flash Free · 2.9s)
_Thinking:_
The user wants the Online/Offline badge to match the size of the "Löschen" button next to it. Let me look at the current admin.html to see both elements.
**Tool: read**
**Input:**
```json
{
"offset": 175,
"filePath": "/Users/erik/Documents/DEV/signage/templates/admin.html",
"limit": 20
}
```
**Output:**
```
/Users/erik/Documents/DEV/signage/templates/admin.htmlfile
175:
(Showing lines 175-194 of 549. Use offset=195 to continue.)
```
---
## Assistant (Build · DeepSeek V4 Flash Free · 4.9s)
_Thinking:_
The user wants the badge to be the same size as the "Löschen" button. The "Löschen" button is a `