Add station departure display

buba/BubaAnimator.py

@@ -1,76 +0,0 @@
-import logging
-from datetime import datetime
-from threading import Thread
-from time import sleep
-
-from buba.BubaCmd import BubaCmd
-
-
-class BubaAnimation:
-    def __init__(self, buba: BubaCmd):
-        self.buba = buba
-        pass
-
-    def run(self):
-        pass
-
-    def __repr__(self):
-        return f"<{type(self).__name__}>"
-
-
-class BubaTime(BubaAnimation):
-    def __init__(self, buba: BubaCmd):
-        super().__init__(buba)
-
-    def run(self):
-        self.buba.simple_text(page=0, row=0, col=0, text="Buba")
-        self.buba.simple_text(page=0, row=1, col=0, text="Choas Computer Club")
-        self.buba.simple_text(page=0, row=2, col=0, text="Hansestadt Hamburg")
-        self.buba.simple_text(page=0, row=3, col=0, text="Hello, world!")
-        self.buba.set_page(0)
-
-        for i in range(5):
-            self.buba.simple_text(page=0, row=0, col=93, text=datetime.now().strftime("%H:%M:%S"))
-            sleep(1)
-
-
-class BubaCharset(BubaAnimation):
-    def __init__(self, buba: BubaCmd, single=None):
-        super().__init__(buba)
-        self.charset = bytes(range(256)).decode("CP437")
-        self.single = single
-
-    def run(self):
-        if self.single is not None:
-            while True:
-                self.render(self.single)
-                sleep(1)
-        else:
-            for page in range(16):
-                self.render(page)
-                sleep(5)
-
-    def render(self, page):
-        for row in range(4):
-            start = ((page + row) * 16) % 256
-            self.buba.simple_text(page=0, row=row, col=0, text=f"${start:02x}: {self.charset[start:start + 16]}")
-
-class BubaAnimator:
-    def __init__(self, buba: BubaCmd):
-        self.log = logging.getLogger(__name__)
-        self.buba = buba
-        self.animations = []
-        Thread(target=self.run, daemon=True).start()
-
-    def run(self):
-        while True:
-            if len(self.animations) == 0:
-                a = BubaTime(self.buba)
-                a.run()
-            else:
-                for a in self.animations:
-                    self.log.debug(f"Starting animation: {a}")
-                    a.run()
-
-    def add(self, animation, *args, **kwargs):
-        self.animations.append(animation(self.buba, *args, **kwargs))

buba/__main__.py

@@ -5,9 +5,12 @@ from bottle_log import LoggingPlugin
 from bottle_websocket import websocket, GeventWebSocketServer
 from geventwebsocket.websocket import WebSocket
 
-from buba.AppConfig import AppConfig
-from buba.BubaAnimator import BubaAnimator, BubaTime, BubaCharset
-from buba.BubaCmd import BubaCmd
+from buba.appconfig import AppConfig
+from buba.bubaanimator import BubaAnimator
+from buba.animations.time import BubaTime
+from buba.bubacmd import BubaCmd
+
+from buba.animations.dbf import DBFAnimation
 from buba.websocketcomm import WebSocketClients
 
 config = AppConfig()
@@ -25,10 +28,10 @@ TEMPLATE_PATH.insert(0, config.templatepath)
 websocket_clients = WebSocketClients()
 buba = BubaCmd(config.serial, websocket_clients.send)
 animator = BubaAnimator(buba)
-animator.add(BubaCharset) #, single=12)
+# animator.add(BubaCharset) #, single=12)
 animator.add(BubaTime)
-# bottle_helpers = BottleHelpers(auth, group=config.requires_group, allowed=config.allowed)
-# update_poller = UpdatePoller(websocket_clients, ccujack, 1 if config.debug else 0.1)
+animator.add(DBFAnimation, ds100="AHST", station="Holstenstraße")
+animator.add(DBFAnimation, ds100="AHS", station="Altona", count=9)
 
 
 @app.route("/static/<filepath>")

buba/animations/charset.py

@@ -0,0 +1,26 @@
+from time import sleep
+
+from buba.bubaanimator import BubaAnimation
+from buba.bubacmd import BubaCmd
+
+
+class BubaCharset(BubaAnimation):
+    def __init__(self, buba: BubaCmd, single=None):
+        super().__init__(buba)
+        self.charset = bytes(range(256)).decode("CP437")
+        self.single = single
+
+    def run(self):
+        if self.single is not None:
+            while True:
+                self.render(self.single)
+                sleep(1)
+        else:
+            for page in range(16):
+                self.render(page)
+                sleep(5)
+
+    def render(self, page):
+        for row in range(4):
+            start = ((page + row) * 16) % 256
+            self.buba.simple_text(page=0, row=row, col=0, text=f"${start:02x}: {self.charset[start:start + 16]}")

buba/animations/dbf.py

@@ -0,0 +1,123 @@
+"""
+Pull departure info from https://trains.xatlabs.com and display.
+
+See also https://github.com/derf/db-fakedisplay/blob/main/README.md
+"""
+import datetime
+from itertools import islice
+from threading import Thread
+from time import sleep
+
+from deutschebahn.db_infoscreen import DBInfoscreen
+
+from buba.bubaanimator import BubaAnimation
+from buba.bubacmd import BubaCmd
+
+
+class DBFAnimation(BubaAnimation):
+    def __init__(self, buba: BubaCmd, ds100="AHST", station="Holstenstraße", count=3):
+        super().__init__(buba)
+        self.ds100 = ds100
+        self.station = station
+        self.trains = []
+        self.count = count
+        Thread(target=self.update, daemon=True).start()
+
+    def fetch(self):
+        dbi = DBInfoscreen("trains.xatlabs.com")
+        trains = dbi.calc_real_times(dbi.get_trains(self.ds100))  # Station
+        trains = [t for t in trains]  # if t['platform'] == "1"]  # platform gleis
+        trains.sort(key=dbi.time_sort)
+        self.trains = trains
+
+    def update(self):
+        self.fetch()
+        sleep(60)
+
+    @staticmethod
+    def countdown(train):
+        now = datetime.datetime.now()
+        try:
+            dep_time = datetime.datetime.strptime(train['actualDeparture'], "%H:%M").time()
+        except TypeError as e:
+            return -1
+
+        # First, assume all departure times are on the current day
+        dep_date = now.date()
+
+        # Calculate timedelta under the above assumption
+        dep_td = datetime.datetime.combine(dep_date, dep_time) - now
+
+        # If the calculated timedelta is more than one hour in the past,
+        # assume that the day should actually be the next day
+        # (This will be the case e.g. when a train departs at 00:15 and it's currently 23:50)
+        if dep_td.total_seconds() <= -3600:
+            dep_date += datetime.timedelta(days=1)
+
+        # If the calculated timedelta is more than 23 hours in the future,
+        # assume that the day should actually be the previous day.
+        # (This will be the case e.g. when a train should have departed at 23:50 but it's already 00:15)
+        if dep_td.total_seconds() >= 3600 * 23:
+            dep_date -= datetime.timedelta(days=1)
+
+        # Recalculate the timedelta
+        dep_td = datetime.datetime.combine(dep_date, dep_time) - now
+        return round(dep_td.total_seconds() / 60)
+
+    @staticmethod
+    def short_station(station: str) -> str:
+        station = station.strip()
+        if station.startswith("Hamburg-") or station.startswith("Hamburg "):
+            station = station[8:]
+        if station.endswith("(S)"):
+            station = station[:-3]
+        if station.endswith("(S-Bahn)"):
+            station = station[:-8]
+        if station == "Hbf":
+            station = "Hauptbahnhof"
+        return station
+
+    @staticmethod
+    def short_train(train: str) -> str:
+        if train.startswith("ICE"):
+            train = "ICE"
+        if train.startswith("ME"):
+            train = "ME"
+        if train.startswith("RE"):
+            train = "RE"
+        train = train.replace(" ", "")
+        return train
+
+    @staticmethod
+    def chunk(it, size):
+        it = iter(it)
+        return iter(lambda: tuple(islice(it, size)), ())
+
+    def run(self):
+        all = self.trains[:self.count]
+        all_len = int((len(all)+1)/3)
+
+        if len(self.trains) == 0:
+            sleep(5)
+
+        for page, trains in enumerate(self.chunk(all, 3)):
+            if all_len == 1:
+                title = self.station
+            else:
+                title = f"{self.station} ({page+1}/{all_len})"
+            self.buba.text(page=0, row=0, col_start=0, col_end=120, text=title, align=BubaCmd.ALIGN_LEFT)
+            for i, train in enumerate(trains):
+                if train['isCancelled']:
+                    when = "--"
+                else:
+                    when = self.countdown(train)
+                    if when < 0:
+                        when = 0
+                self.buba.text(page=0, row=i + 1, col_start=0, col_end=120, text=self.short_train(train['train']))
+                self.buba.text(page=0, row=i + 1, col_start=12, col_end=76, text=self.short_station(train['destination']))
+                self.buba.text(page=0, row=i + 1, col_start=105, col_end=120,
+                               text=str(when), align=BubaCmd.ALIGN_RIGHT)
+            self.buba.set_page(0)
+            for i in range(10):
+                self.buba.text(page=0, row=0, col_start=93, col_end=120, text=datetime.datetime.now().strftime("%H:%M:%S"), align=BubaCmd.ALIGN_RIGHT)
+                sleep(1)

buba/animations/time.py

@@ -0,0 +1,21 @@
+from datetime import datetime
+from time import sleep
+
+from buba.bubaanimator import BubaAnimation
+from buba.bubacmd import BubaCmd
+
+
+class BubaTime(BubaAnimation):
+    def __init__(self, buba: BubaCmd):
+        super().__init__(buba)
+
+    def run(self):
+        self.buba.simple_text(page=0, row=0, col=0, text="Bus-Bahn-Anzeige")
+        self.buba.simple_text(page=0, row=1, col=0, text="Chaos Computer Club")
+        self.buba.simple_text(page=0, row=2, col=0, text="Hansestadt Hamburg")
+        self.buba.simple_text(page=0, row=3, col=0, text="Hello, world!")
+        self.buba.set_page(0)
+
+        for i in range(5):
+            self.buba.text(page=0, row=0, col_start=93, col_end=120, text=datetime.now().strftime("%H:%M:%S"), align=BubaCmd.ALIGN_RIGHT)
+            sleep(1)

buba/bubaanimator.py

@@ -0,0 +1,38 @@
+import logging
+from threading import Thread
+from time import sleep
+
+from buba.bubacmd import BubaCmd
+
+
+class BubaAnimation:
+    def __init__(self, buba: BubaCmd):
+        self.buba = buba
+        pass
+
+    def run(self):
+        pass
+
+    def __repr__(self):
+        return f"<{type(self).__name__}>"
+
+
+class BubaAnimator:
+    def __init__(self, buba: BubaCmd):
+        self.log = logging.getLogger(__name__)
+        self.buba = buba
+        self.animations = []
+        Thread(target=self.run, daemon=True).start()
+
+    def run(self):
+        while True:
+            if len(self.animations) == 0:
+                self.log.debug("No animations, sleeping...")
+                sleep(2)
+            else:
+                for a in self.animations:
+                    self.log.debug(f"Starting animation: {a}")
+                    a.run()
+
+    def add(self, animation, *args, **kwargs):
+        self.animations.append(animation(self.buba, *args, **kwargs))

buba/bubacmd.py

@@ -9,6 +9,11 @@ from pyfis.aegmis import MIS1TextDisplay
 
 
 class BubaCmd:
+    ALIGN_LEFT = 0x00
+    ALIGN_RIGHT = 0x01
+    ALIGN_CENTER = 0x02
+    ALIGN_SCROLL = 0x03 # apparently not supported
+
     def __init__(self, serial: str, send: Callable):
         self.log = logging.getLogger(__name__)
         self.serial = serial

buba/static/display.js

@@ -119,15 +119,44 @@ export default class {
         return col;
     }
 
+    text_length(text) {
+        let l = 0
+        for (let c of text) {
+            let f = this.font[c];
+            if (f === undefined)
+                continue;
+            l += f.length;
+        }
+        return l
+    }
+
+    col_start_for_alignment(col_start, col_end, text, align) {
+        let l = this.text_length(text)
+        switch (align) {
+            case 0: // ALIGN_LEFT
+                return col_start;
+            case 1: // ALIGN_RIGHT
+                return col_end - l;
+            case 2:
+                return Math.floor((col_end - col_start - l) / 2);
+        }
+    }
+
     set_pages(pages) {
         console.log("set pages", pages);
         // ignore for now
     }
 
+    text(page, row, col_start, col_end, text, align) {
+        let s = this.col_start_for_alignment(col_start, col_end, text, align);
+        if (s < 0)
+            console.log("Out of alignment")
+        this.eraseCols(row, col_start, col_end);
+        this.applyText(row, s, text);
+    }
+
     simple_text(page, row, col, text, align) {
-        // console.log("simple text", page, row, col, text, align);
-        this.eraseCols(row, col, this.config.cols);
-        this.applyText(row, col, text);
+        this.text(page, row, col, this.config.cols, text, align);
     }
 
     defineFont() {
@@ -333,6 +362,8 @@ export default class {
         // 0x20-0x2f
         defs['\u0020'] = [ // space
             '...... ...... ...... ......',
+            '...... ...... ...... ......',
+            '...... ...... ...... ......',
         ];
         defs['\u0021'] = [ // !
             '###### ###### ##.... ###...',

buba/static/main.js

@@ -19,7 +19,7 @@ if (container) {
                     display.simple_text(m.page, m.row, m.col, m.text, m.align);
                     break;
                 case "text":
-                    console.log("text", m);
+                    display.text(m.page, m.row, m.col_start, m.col_end, m.text, m.align);
                     break;
             }
         });

poetry.lock

@@ -42,6 +42,18 @@ files = [
 bottle = "*"
 gevent-websocket = "*"
 
+[[package]]
+name = "certifi"
+version = "2025.4.26"
+description = "Python package for providing Mozilla's CA Bundle."
+optional = false
+python-versions = ">=3.6"
+groups = ["main"]
+files = [
+    {file = "certifi-2025.4.26-py3-none-any.whl", hash = "sha256:30350364dfe371162649852c63336a15c70c6510c2ad5015b21c2345311805f3"},
+    {file = "certifi-2025.4.26.tar.gz", hash = "sha256:0a816057ea3cdefcef70270d2c515e4506bbc954f417fa5ade2021213bb8f0c6"},
+]
+
 [[package]]
 name = "cffi"
 version = "1.17.1"
@@ -123,6 +135,123 @@ files = [
 [package.dependencies]
 pycparser = "*"
 
+[[package]]
+name = "charset-normalizer"
+version = "3.4.2"
+description = "The Real First Universal Charset Detector. Open, modern and actively maintained alternative to Chardet."
+optional = false
+python-versions = ">=3.7"
+groups = ["main"]
+files = [
+    {file = "charset_normalizer-3.4.2-cp310-cp310-macosx_10_9_universal2.whl", hash = "sha256:7c48ed483eb946e6c04ccbe02c6b4d1d48e51944b6db70f697e089c193404941"},
+    {file = "charset_normalizer-3.4.2-cp310-cp310-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:b2d318c11350e10662026ad0eb71bb51c7812fc8590825304ae0bdd4ac283acd"},
+    {file = "charset_normalizer-3.4.2-cp310-cp310-manylinux_2_17_ppc64le.manylinux2014_ppc64le.whl", hash = "sha256:9cbfacf36cb0ec2897ce0ebc5d08ca44213af24265bd56eca54bee7923c48fd6"},
+    {file = "charset_normalizer-3.4.2-cp310-cp310-manylinux_2_17_s390x.manylinux2014_s390x.whl", hash = "sha256:18dd2e350387c87dabe711b86f83c9c78af772c748904d372ade190b5c7c9d4d"},
+    {file = "charset_normalizer-3.4.2-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:8075c35cd58273fee266c58c0c9b670947c19df5fb98e7b66710e04ad4e9ff86"},
+    {file = "charset_normalizer-3.4.2-cp310-cp310-manylinux_2_5_i686.manylinux1_i686.manylinux_2_17_i686.manylinux2014_i686.whl", hash = "sha256:5bf4545e3b962767e5c06fe1738f951f77d27967cb2caa64c28be7c4563e162c"},
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+    {file = "charset_normalizer-3.4.2-cp310-cp310-musllinux_1_2_x86_64.whl", hash = "sha256:21b2899062867b0e1fde9b724f8aecb1af14f2778d69aacd1a5a1853a597a5db"},
+    {file = "charset_normalizer-3.4.2-cp310-cp310-win32.whl", hash = "sha256:e8082b26888e2f8b36a042a58307d5b917ef2b1cacab921ad3323ef91901c71a"},
+    {file = "charset_normalizer-3.4.2-cp310-cp310-win_amd64.whl", hash = "sha256:f69a27e45c43520f5487f27627059b64aaf160415589230992cec34c5e18a509"},
+    {file = "charset_normalizer-3.4.2-cp311-cp311-macosx_10_9_universal2.whl", hash = "sha256:be1e352acbe3c78727a16a455126d9ff83ea2dfdcbc83148d2982305a04714c2"},
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+    {file = "charset_normalizer-3.4.2-cp311-cp311-manylinux_2_17_ppc64le.manylinux2014_ppc64le.whl", hash = "sha256:d524ba3f1581b35c03cb42beebab4a13e6cdad7b36246bd22541fa585a56cccd"},
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+]
+
+[[package]]
+name = "deutschebahn"
+version = "1.4.0"
+description = "Collection of utilities related to German train operator Deutsche Bahn."
+optional = false
+python-versions = "*"
+groups = ["main"]
+files = [
+    {file = "deutschebahn-1.4.0-py3-none-any.whl", hash = "sha256:0112e6030381c6916548c2d90fffca391672d060dd03f7f85471a82c23bef08f"},
+    {file = "deutschebahn-1.4.0.tar.gz", hash = "sha256:c84ae372cb15d50d0662dbad1cc9ca7803c63ed7fa4c3af2fe3bf1b98e734072"},
+]
+
+[package.dependencies]
+requests = "*"
+
 [[package]]
 name = "gevent"
 version = "25.5.1"
@@ -270,6 +399,21 @@ files = [
 docs = ["Sphinx", "furo"]
 test = ["objgraph", "psutil"]
 
+[[package]]
+name = "idna"
+version = "3.10"
+description = "Internationalized Domain Names in Applications (IDNA)"
+optional = false
+python-versions = ">=3.6"
+groups = ["main"]
+files = [
+    {file = "idna-3.10-py3-none-any.whl", hash = "sha256:946d195a0d259cbba61165e88e65941f16e9b36ea6ddb97f00452bae8b1287d3"},
+    {file = "idna-3.10.tar.gz", hash = "sha256:12f65c9b470abda6dc35cf8e63cc574b1c52b11df2c86030af0ac09b01b13ea9"},
+]
+
+[package.extras]
+all = ["flake8 (>=7.1.1)", "mypy (>=1.11.2)", "pytest (>=8.3.2)", "ruff (>=0.6.2)"]
+
 [[package]]
 name = "jinja2"
 version = "3.1.6"
@@ -502,6 +646,40 @@ files = [
 [package.extras]
 cp2110 = ["hidapi"]
 
+[[package]]
+name = "pytz"
+version = "2025.2"
+description = "World timezone definitions, modern and historical"
+optional = false
+python-versions = "*"
+groups = ["main"]
+files = [
+    {file = "pytz-2025.2-py2.py3-none-any.whl", hash = "sha256:5ddf76296dd8c44c26eb8f4b6f35488f3ccbf6fbbd7adee0b7262d43f0ec2f00"},
+    {file = "pytz-2025.2.tar.gz", hash = "sha256:360b9e3dbb49a209c21ad61809c7fb453643e048b38924c765813546746e81c3"},
+]
+
+[[package]]
+name = "requests"
+version = "2.32.3"
+description = "Python HTTP for Humans."
+optional = false
+python-versions = ">=3.8"
+groups = ["main"]
+files = [
+    {file = "requests-2.32.3-py3-none-any.whl", hash = "sha256:70761cfe03c773ceb22aa2f671b4757976145175cdfca038c02654d061d6dcc6"},
+    {file = "requests-2.32.3.tar.gz", hash = "sha256:55365417734eb18255590a9ff9eb97e9e1da868d4ccd6402399eaf68af20a760"},
+]
+
+[package.dependencies]
+certifi = ">=2017.4.17"
+charset-normalizer = ">=2,<4"
+idna = ">=2.5,<4"
+urllib3 = ">=1.21.1,<3"
+
+[package.extras]
+socks = ["PySocks (>=1.5.6,!=1.5.7)"]
+use-chardet-on-py3 = ["chardet (>=3.0.2,<6)"]
+
 [[package]]
 name = "setuptools"
 version = "80.9.0"
@@ -523,6 +701,24 @@ enabler = ["pytest-enabler (>=2.2)"]
 test = ["build[virtualenv] (>=1.0.3)", "filelock (>=3.4.0)", "ini2toml[lite] (>=0.14)", "jaraco.develop (>=7.21) ; python_version >= \"3.9\" and sys_platform != \"cygwin\"", "jaraco.envs (>=2.2)", "jaraco.path (>=3.7.2)", "jaraco.test (>=5.5)", "packaging (>=24.2)", "pip (>=19.1)", "pyproject-hooks (!=1.1)", "pytest (>=6,!=8.1.*)", "pytest-home (>=0.5)", "pytest-perf ; sys_platform != \"cygwin\"", "pytest-subprocess", "pytest-timeout", "pytest-xdist (>=3)", "tomli-w (>=1.0.0)", "virtualenv (>=13.0.0)", "wheel (>=0.44.0)"]
 type = ["importlib_metadata (>=7.0.2) ; python_version < \"3.10\"", "jaraco.develop (>=7.21) ; sys_platform != \"cygwin\"", "mypy (==1.14.*)", "pytest-mypy"]
 
+[[package]]
+name = "urllib3"
+version = "2.4.0"
+description = "HTTP library with thread-safe connection pooling, file post, and more."
+optional = false
+python-versions = ">=3.9"
+groups = ["main"]
+files = [
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+    {file = "urllib3-2.4.0.tar.gz", hash = "sha256:414bc6535b787febd7567804cc015fee39daab8ad86268f1310a9250697de466"},
+]
+
+[package.extras]
+brotli = ["brotli (>=1.0.9) ; platform_python_implementation == \"CPython\"", "brotlicffi (>=0.8.0) ; platform_python_implementation != \"CPython\""]
+h2 = ["h2 (>=4,<5)"]
+socks = ["pysocks (>=1.5.6,!=1.5.7,<2.0)"]
+zstd = ["zstandard (>=0.18.0)"]
+
 [[package]]
 name = "zope-event"
 version = "5.0"
@@ -600,4 +796,4 @@ testing = ["coverage[toml]", "zope.event", "zope.testing"]
 [metadata]
 lock-version = "2.1"
 python-versions = ">=3.10,<4.0"
-content-hash = "d293c04556f191acb29cc8f27ed7f14ce989b097f93c1af920c443e26f439037"
+content-hash = "acf29f4ce322901a93ff75a105fbe8ba8ff40b944731aacd4f11cdb57f7d0481"

pyproject.toml

@@ -15,7 +15,9 @@ dependencies = [
     "bottle-log (>=1.0.0,<2.0.0)",
     "gevent-websocket (>=0.10.1,<0.11.0)",
     "gevent (>=25.5.1,<26.0.0)",
-    "jinja2 (>=3.1.6,<4.0.0)"
+    "jinja2 (>=3.1.6,<4.0.0)",
+    "deutschebahn (>=1.4.0,<2.0.0)",
+    "pytz (>=2025.2,<2026.0)"
 ]