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# SPDX-License-Identifier: AGPL-3.0-or-later
"""Open Meteo (weather)"""
import typing as t
from urllib.parse import urlencode
from datetime import datetime
from searx.result_types import EngineResults, WeatherAnswer
from searx import weather
about = {
"website": "https://open-meteo.com",
"wikidata_id": None,
"official_api_documentation": "https://open-meteo.com/en/docs",
"use_official_api": True,
"require_api_key": False,
"results": "JSON",
}
categories = ["weather"]
geo_url = "https://geocoding-api.open-meteo.com"
api_url = "https://api.open-meteo.com"
data_of_interest = (
"temperature_2m",
"apparent_temperature",
"relative_humidity_2m",
"apparent_temperature",
"cloud_cover",
"pressure_msl",
"wind_speed_10m",
"wind_direction_10m",
"weather_code",
# "visibility",
# "is_day",
)
def request(query, params):
try:
location = weather.GeoLocation.by_query(query)
except ValueError:
return
args = {
"latitude": location.latitude,
"longitude": location.longitude,
"timeformat": "unixtime",
"timezone": "auto", # use timezone of the location
"format": "json",
"current": ",".join(data_of_interest),
"forecast_days": 3,
"hourly": ",".join(data_of_interest),
}
params["url"] = f"{api_url}/v1/forecast?{urlencode(args)}"
# https://open-meteo.com/en/docs#weather_variable_documentation
# https://nrkno.github.io/yr-weather-symbols/
WMO_TO_CONDITION: dict[int, weather.WeatherConditionType] = {
# 0 Clear sky
0: "clear sky",
# 1, 2, 3 Mainly clear, partly cloudy, and overcast
1: "fair",
2: "partly cloudy",
3: "cloudy",
# 45, 48 Fog and depositing rime fog
45: "fog",
48: "fog",
# 51, 53, 55 Drizzle: Light, moderate, and dense intensity
51: "light rain",
53: "light rain",
55: "light rain",
# 56, 57 Freezing Drizzle: Light and dense intensity
56: "light sleet showers",
57: "light sleet",
# 61, 63, 65 Rain: Slight, moderate and heavy intensity
61: "light rain",
63: "rain",
65: "heavy rain",
# 66, 67 Freezing Rain: Light and heavy intensity
66: "light sleet showers",
67: "light sleet",
# 71, 73, 75 Snow fall: Slight, moderate, and heavy intensity
71: "light sleet",
73: "sleet",
75: "heavy sleet",
# 77 Snow grains
77: "snow",
# 80, 81, 82 Rain showers: Slight, moderate, and violent
80: "light rain showers",
81: "rain showers",
82: "heavy rain showers",
# 85, 86 Snow showers slight and heavy
85: "snow showers",
86: "heavy snow showers",
# 95 Thunderstorm: Slight or moderate
95: "rain and thunder",
# 96, 99 Thunderstorm with slight and heavy hail
96: "light snow and thunder",
99: "heavy snow and thunder",
}
def _weather_data(location: weather.GeoLocation, data: dict[str, t.Any]):
return WeatherAnswer.Item(
location=location,
temperature=weather.Temperature(val=data["temperature_2m"], unit="°C"),
condition=WMO_TO_CONDITION[data["weather_code"]],
feels_like=weather.Temperature(val=data["apparent_temperature"], unit="°C"),
wind_from=weather.Compass(data["wind_direction_10m"]),
wind_speed=weather.WindSpeed(val=data["wind_speed_10m"], unit="km/h"),
pressure=weather.Pressure(val=data["pressure_msl"], unit="hPa"),
humidity=weather.RelativeHumidity(data["relative_humidity_2m"]),
cloud_cover=data["cloud_cover"],
)
def response(resp):
location = weather.GeoLocation.by_query(resp.search_params["query"])
res = EngineResults()
json_data = resp.json()
weather_answer = WeatherAnswer(
current=_weather_data(location, json_data["current"]),
service="Open-meteo",
# url="https://open-meteo.com/en/docs",
)
for index, time in enumerate(json_data["hourly"]["time"]):
if time < json_data["current"]["time"]:
# Cut off the hours that are already in the past
continue
hourly_data = {}
for key in data_of_interest:
hourly_data[key] = json_data["hourly"][key][index]
forecast_data = _weather_data(location, hourly_data)
forecast_data.datetime = weather.DateTime(datetime.fromtimestamp(time))
weather_answer.forecasts.append(forecast_data)
res.add(weather_answer)
return res
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