Add CCCHH events

Closes #5

buba/__main__.py

@@ -5,6 +5,7 @@ from bottle_log import LoggingPlugin
 from bottle_websocket import websocket, GeventWebSocketServer
 from geventwebsocket.websocket import WebSocket
 
+from buba.animations.icalevents import IcalEvents
 from buba.appconfig import AppConfig
 from buba.bubaanimator import BubaAnimator
 from buba.animations.time import BubaTime
@@ -32,7 +33,7 @@ animator = BubaAnimator(buba)
 animator.add(BubaTime)
 animator.add(DBFAnimation, ds100="AHST", station="Holstenstraße")
 animator.add(DBFAnimation, ds100="AHS", station="Altona", count=9)
-
+animator.add(IcalEvents, url="https://cloud.hamburg.ccc.de/remote.php/dav/public-calendars/QJAdExziSnNJEz5g?export", title="CCCHH Events")
 
 @app.route("/static/<filepath>")
 def server_static(filepath):

buba/animations/icalevents.py

@@ -0,0 +1,38 @@
+from datetime import timedelta, datetime
+from time import sleep
+
+from buba.bubaanimator import BubaAnimation
+import icalevents.icalevents
+
+from buba.bubacmd import BubaCmd
+
+
+class IcalEvents(BubaAnimation):
+    def __init__(self, buba, url, title):
+        super().__init__(buba)
+        self.url = url
+        self.title = title
+        self.events = icalevents.icalevents.events(url)
+        self.log.debug(f"Events loaded {len(self.events)}")
+
+    def __repr__(self):
+        return f"<{type(self).__name__}, {self.url}>"
+
+    @staticmethod
+    def ellipsis(text, max=28):
+        if len(text) > max:
+            text = text[:max-3] + "..."
+        return text
+
+    def run(self):
+        self.buba.text(page=0, row=0, col_start=0, col_end=119, text=self.title, align=BubaCmd.ALIGN_LEFT)
+        for (i, event) in enumerate(self.events[0:3]):
+            if event.start - datetime.now(event.start.tzinfo) < timedelta(hours=20):
+                when = event.start.strftime("%H:%M")
+            else:
+                when = event.start.strftime("%d.%m.")
+            self.log.info(f"event '{self.ellipsis(event.summary)} at {when}")
+            self.buba.text(page=0, row=i + 1, col_start=0, col_end=104, text=self.ellipsis(event.summary))
+            self.buba.text(page=0, row=i + 1, col_start=105, col_end=119,
+                           text=when, align=BubaCmd.ALIGN_RIGHT)
+        sleep(10)

buba/bubaanimator.py

@@ -7,6 +7,7 @@ from buba.bubacmd import BubaCmd
 
 class BubaAnimation:
     def __init__(self, buba: BubaCmd):
+        self.log = logging.getLogger(type(self).__name__)
         self.buba = buba
         pass