initial commit
This commit is contained in:
Milan Toman
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web/weather.py
Executable file
200
web/weather.py
Executable file
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#!/usr/bin/python3
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import os
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import sys
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import cherrypy
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import influxdb
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import time
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import json
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# Universal variables
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_SCRIPT_PATH = os.path.dirname(sys.argv[0])
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_STATIC_DIR = '/templates/' # Needs to have trailing and leading slash '/'
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influx_host = 'localhost'
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influx_port = 8086
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influx_user = 'pi'
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influx_pwd = 'freedavis'
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influx_weather_db = 'weather'
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influx_status_db = 'status'
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# Icons
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fs_wind_icon = '../static/img/wind_icon.png'
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fs_pressure_icon = '../static/img/pressure_icon.png'
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fs_in_temperature_icon = '../static/img/inside_temp_icon.png'
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fs_out_temperature_icon = '../static/img/outside_temp_icon.png'
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fs_windgust_icon = '../static/img/wind_gust_icon.png'
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fs_winddirection_icon = '../static/img/wind_direction_icon.png'
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# Functions
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def read_html(filename):
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read_path = _SCRIPT_PATH + _STATIC_DIR + filename + '.html'
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try:
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with open(read_path, 'r') as handle:
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return handle.read()
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except:
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return """<div>ERROR!</div>""" + read_path
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# Set default structure
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html_start = '<html>'
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body_start = '<body>'
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body_close = '</body>'
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html_close = '</html>'
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class WeatherInfo(object):
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@cherrypy.expose
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def index(self):
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header = read_html('header')
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menu_raw = read_html('top_menu')
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menu = menu_raw.format(energy = '', weather = 'active', status = '')
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body = self.body()
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footer = read_html('footer')
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result = header\
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+ menu\
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+ body\
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+ footer
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return result
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def winddirName(self, direction):
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'''
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Function to get energy readings from InfluxDB.
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returns:
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dict(): {"last": str(last_entry),
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"details": list(detailed_table),
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"watthours": str(watthours)}
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'''
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if 10.5 <= direction < 34.5:
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result = "NNE"
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elif 34.5 <= direction < 58.5:
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result = "NE"
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elif 58.5 <= direction < 82.5:
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result = "ENE"
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elif 82.5 <= direction < 106.5:
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result = "E"
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elif 106.5 <= direction < 130.5:
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result = "ESE"
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elif 130.5 <= direction < 154.5:
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result = "SE"
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elif 154.5 <= direction < 178.5:
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result = "SSE"
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elif 178.5 <= direction < 202.5:
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result = "S"
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elif 202.5 <= direction < 226.5:
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result = "SSW"
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elif 226.5 <= direction < 250.5:
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result = "SW"
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elif 250.5 <= direction < 274.5:
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result = "W"
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elif 274.5 <= direction < 298.5:
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result = "WNW"
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elif 298.5 <= direction < 322.5:
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result = "NW"
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elif 322.5 <= direction < 346.5:
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result = "NNW"
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elif 346.5 <= direction <= 359.9 or 0 < direction < 10.5:
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result = "N"
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elif direction == 0:
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result = "ERROR, windvan broken"
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else:
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result = "NaN"
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return result
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def LastKnownState(self):
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'''
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Function to get energy readings from InfluxDB.
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returns:
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dict(): {"last": str(last_entry),
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"details": list(detailed_table),
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"watthours": str(watthours)}
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'''
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influx_weather_client = influxdb.client.InfluxDBClient(
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influx_host, influx_port, influx_user, influx_pwd, influx_weather_db
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)
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influx_status_client = influxdb.client.InfluxDBClient(
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influx_host, influx_port, influx_user, influx_pwd, influx_status_db
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)
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# General query
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query1 = "SELECT time, value FROM wind WHERE type = "
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query2 = "AND time > NOW() - 5m ORDER BY time DESC LIMIT 1"
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# now parse the tag in the middle of the two q from above
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wind_speed_q = "{} '{}' {}".format(query1, "speed", query2)
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wind_direction_q = "{} '{}' {}".format(query1, "direction", query2)
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wind_gust_q = "{} '{}' {}".format(query1, "windgust", query2)
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hum_ext_q = "SELECT time, humidity FROM temphumi WHERE type = 'external' {}".format(query2)
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hum_int_q = "SELECT time, humidity FROM temphumi WHERE type = 'internal' {}".format(query2)
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press_q = "SELECT time, pressure FROM temphumi WHERE type = 'adjusted' {}".format(query2)
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presr_q = "SELECT time, pressure FROM temphumi WHERE type = 'raw' {}".format(query2)
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t_ext_q = "SELECT time, temperature FROM temphumi WHERE type = 'external' {}".format(query2)
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t_int_q = "SELECT time, temperature FROM temphumi WHERE type = 'internal' {}".format(query2)
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# the actual query to DB
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wind_speed = influx_weather_client.query(wind_speed_q)
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wind_direction = influx_weather_client.query(wind_direction_q)
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wind_gust = influx_weather_client.query(wind_gust_q)
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hum_ext = influx_weather_client.query(hum_ext_q)
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hum_int = influx_weather_client.query(hum_int_q)
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press = influx_weather_client.query(press_q)
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presr = influx_weather_client.query(presr_q)
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t_ext = influx_weather_client.query(t_ext_q)
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t_int = influx_weather_client.query(t_int_q)
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# returned is a list, in this case, we just need one value [0]
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result_windspeed = [speed for speed in wind_speed][0][0]
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result_winddir = [direction for direction in wind_direction][0][0]
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result_windgust = [gust for gust in wind_gust][0][0]
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result_hum_int = [y for y in hum_int][0][0]
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result_t_int = [c for c in t_int][0][0]
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result_press = [z for z in press][0][0]
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result_presr = [a for a in presr][0][0]
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result_t_ext = [b for b in t_ext][0][0]
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result_hum_ext = [x for x in hum_ext][0][0]
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# Put the time to a uhman readable format, strip nanosecs
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time_stamp = time.strptime(result_windspeed['time'].split('.')[0],
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"%Y-%m-%dT%H:%M:%S")
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result = {}
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# Construct the result to return
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result.update({"time": time_stamp})
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result.update({"speed": round(result_windspeed['value'], 1)})
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result.update({"direction": round(result_winddir['value'], 1)})
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result.update({"windgust": round(result_windgust['value'], 1)})
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result.update({"humidity_ext": round(result_hum_ext['humidity'], 1)})
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result.update({"humidity_int": round(result_hum_int['humidity'], 1)})
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result.update({"pressure": round(result_press['pressure'], 1)})
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result.update({"pressure_raw": round(result_presr['pressure'], 1)})
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result.update({"temp_ext": round(result_t_ext['temperature'], 1)})
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result.update({"temp_int": round(result_t_int['temperature'], 1)})
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return result
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def body(self):
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admin_preformat = read_html('weather_admin')
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current_weather = self.LastKnownState()
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admin_html = admin_preformat.format(
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timestamp = time.strftime("%d.%m.%Y %H:%M:%S",
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current_weather['time']),
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w_speed_icon = fs_wind_icon,
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w_speed_km = current_weather['speed'],
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w_speed_ms = round(current_weather['speed'] / 3.6, 1),
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w_gust_icon = fs_windgust_icon,
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w_gust_km = current_weather['windgust'],
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w_gust_ms = round(current_weather['windgust'] / 3.6, 1),
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w_dir_icon = fs_winddirection_icon,
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w_dir_name = self.winddirName(current_weather['direction']),
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w_dir_deg = current_weather['direction'],
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out_temp_icon = fs_out_temperature_icon,
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out_temp = current_weather['temp_ext'],
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in_temp_icon = fs_in_temperature_icon,
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in_temp = current_weather['temp_int'],
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pressure_icon = fs_pressure_icon,
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pressure = current_weather['pressure'],
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raw_pressure = current_weather['pressure_raw']
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)
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return admin_html
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