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#! /usr/bin/env python3
#! nix-shell -i python3 -p python3 python35Packages.docopt python35Packages.paho-mqtt
""" usage: ampel [options]
--topic=TOPIC topic to publish to [Default: /bam/buslicht/cmnd]
--mqtt-server=HOST path to mqtt server [Default: 192.168.8.11]
--influx-server=HOST path to influxdb server [Default: 192.168.8.11]
--no-mqtt disable mqtt connections for debugging
--no-influx disable sending stats to influxdb
Ampel only works with sonoff tasmota custom firmware
13 22 24 26 28
|-----------|----|----|----|
BLUE GR YEL RED BLUE
EEN LOW
"""
from docopt import docopt
from influxdb import InfluxDBClient
from ampel.fade import calc_chain
from datetime import datetime as dt
from ampel.vvs_efa import VVS_EFA
import time
from time import sleep
import json
import sys
from datetime import datetime, timedelta
import requests
import logging as log
log.basicConfig(level=log.INFO)
import paho.mqtt.client as mqtt
thalesplatz = "5003035"
ditzingen = "5007000"
red = timedelta(minutes=2)
orange = timedelta(minutes=3)
yellow = timedelta(minutes=4)
green = timedelta(minutes=6)
maxtime = timedelta(minutes=15)
mapped = {
"red" : "#FF000",
"orange" : "#FF8800",
"yellow" : "#FFFF00",
"green" : "#00FF00",
"blue" : "#0000FF",
"too_far" : 2 # cycle
}
def fetch_data():
log.info("fetching data")
efa = VVS_EFA.EFA()
now = dt.now()
conns = efa.get_next_connections(
"Ditzingen Thalesplatz",
"Hauptbahnhof (tief)",
now,
True)
for dep in conns:
if now < dep.time_of_departure:
return dep.time_of_departure
def main():
args = docopt(__doc__)
db = "telegraf"
mqtt_server = args["--mqtt-server"]
influx_server = args["--influx-server"]
no_mqtt = args["--no-mqtt"]
no_influx = args["--no-influx"]
topic = args["--topic"]
t = fetch_data()
if not no_mqtt:
log.info("Starting MQTT")
mq = mqtt.Client()
mq.connect(mqtt_server,1883,60)
mq.loop_start()
pub = lambda topic,data: mq.publish(topic,data,qos=1,retain=True)
else:
pub = lambda topic,data: log.info("topic: {}\ndata: {}".format(topic,data))
if not no_influx:
log.info("preparing influxdb")
client = InfluxDBClient(host=influx_server, port=8086, database=db)
msg = {
"measurement": "seconds_to_bus",
"tags": {
"": "thalesplatz"
},
"time": "2009-11-10T23:00:00Z",
"fields": {
"value": 0.64
}
}
sendstat = lambda secs: client.write_points([ {
"measurement": "seconds_to_bus",
"tags": { "station": "thalesplatz" },
"fields": { "value": secs } }])
else:
log.info("No influx")
sendstat = lambda secs: log.info("stat {} -> {} secs".format(datetime.now().replace(microsecond=0).isoformat(),secs))
val = 0.0
step = 0.01
oldstate = state = None
while True:
ret = []
now = datetime.now()
if now > t:
t = fetch_data()
delta = t - now
sendstat(delta.seconds + delta.days*86400)
deltastr = str(delta).split('.', 2)[0]
log.info("{}:{:02d} -> {}:{:02d} delta: {}".format(
now.hour,now.minute,t.hour,t.minute,deltastr))
if not ( (t - maxtime) < now < t):
log.info(f"Bus too far away - {deltastr}")
state = "too_far"
ret = ""
elif (t-red) < now < t:
state = "red"
elif (t-orange) < now < t:
state = "orange"
elif (t-yellow) < now < t:
state = "yellow"
elif (t-green) < now < t:
state = "green"
else:
state = "blue"
log.info(f"State: {state}, old state: {oldstate}")
if oldstate != state:
oldstate = state
if state == "too_far":
pub(f"{topic}/Scheme",mapped[state])
else:
pub(f"{topic}/Color",mapped[state])
sleep(1)
if __name__ == "__main__":
main()
|
