Boersenmodul (#1568)

* #Boersenstrompreise allgemein energycharts mit Grundpreisoption

* #Laenderauswahl fix

* #Boersenmodul v1

* #removed unused import

* #removed topics, cleaned code

* #removed whitespace flake8

* #use req

* # change variable serve_price to surchar_price

* #requested changes

* # requested change, cleaned code

packages/modules/electricity_tariffs/energycharts/config.py

@@ -0,0 +1,15 @@
+
+class EnergyChartsTariffConfiguration:
+    def __init__(self, country: str = 'de', surcharge: float = 0):
+        self.country = country
+        self.surcharge = surcharge
+
+
+class EnergyChartsTariff:
+    def __init__(self,
+                 name: str = "Energy-Charts",
+                 type: str = "energycharts",
+                 configuration: EnergyChartsTariffConfiguration = None) -> None:
+        self.name = name
+        self.type = type
+        self.configuration = configuration or EnergyChartsTariffConfiguration()

packages/modules/electricity_tariffs/energycharts/tariff.py

@@ -0,0 +1,33 @@
+from typing import Dict
+from datetime import datetime, timedelta
+from modules.common import req
+
+from modules.common.abstract_device import DeviceDescriptor
+from modules.common.component_state import TariffState
+from modules.common.configurable_tariff import ConfigurableElectricityTariff
+from modules.electricity_tariffs.energycharts.config import EnergyChartsTariffConfiguration
+from modules.electricity_tariffs.energycharts.config import EnergyChartsTariff
+
+
+def fetch_prices(config: EnergyChartsTariffConfiguration) -> Dict[int, float]:
+    current_dateTime = datetime.now()
+    tomorrow = datetime.now() + timedelta(1)
+    start_time = current_dateTime.strftime("%Y-%m-%d") + 'T00%3A00%2B01%3A00'
+    end_time = tomorrow.strftime("%Y-%m-%d") + 'T23%3A59%2B01%3A00'
+    url = f'https://api.energy-charts.info/price?bzn={config.country}&start={start_time}&end={end_time}'
+    raw_prices = req.get_http_session().get(url).json()
+    price_arr = []
+    for price in raw_prices['price']:
+        price_arr.append((float(price + (config.surcharge*10))/1000000))  # €/MWh -> €/Wh + Aufschlag
+    prices: Dict[int, float] = {}
+    prices = dict(zip(raw_prices['unix_seconds'], price_arr))
+    return prices
+
+
+def create_electricity_tariff(config: EnergyChartsTariff):
+    def updater():
+        return TariffState(prices=fetch_prices(config.configuration))
+    return ConfigurableElectricityTariff(config=config, component_updater=updater)
+
+
+device_descriptor = DeviceDescriptor(configuration_factory=EnergyChartsTariff)