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# SPDX-License-Identifier: AGPL-3.0-or-later
"""wttr.in (weather forecast service)"""
import typing as t
from urllib.parse import quote
from datetime import datetime
from searx.result_types import EngineResults, WeatherAnswer
from searx import weather
about = {
"website": "https://wttr.in",
"wikidata_id": "Q107586666",
"official_api_documentation": "https://github.com/chubin/wttr.in#json-output",
"use_official_api": True,
"require_api_key": False,
"results": "JSON",
}
categories = ["weather"]
url = "https://wttr.in/{query}?format=j1&lang={lang}"
# adapted from https://github.com/chubin/wttr.in/blob/master/lib/constants.py
WWO_TO_CONDITION: dict[str, weather.WeatherConditionType] = {
"113": "clear sky",
"116": "partly cloudy",
"119": "cloudy",
"122": "fair",
"143": "fair",
"176": "light rain showers",
"179": "light snow showers",
"182": "light sleet showers",
"185": "light sleet",
"200": "rain and thunder",
"227": "light snow",
"230": "heavy snow",
"248": "fog",
"260": "fog",
"263": "light rain showers",
"266": "light rain showers",
"281": "light sleet showers",
"284": "light snow showers",
"293": "light rain showers",
"296": "light rain",
"299": "rain showers",
"302": "rain",
"305": "heavy rain showers",
"308": "heavy rain",
"311": "light sleet",
"314": "sleet",
"317": "light sleet",
"320": "heavy sleet",
"323": "light snow showers",
"326": "light snow showers",
"329": "heavy snow showers",
"332": "heavy snow",
"335": "heavy snow showers",
"338": "heavy snow",
"350": "light sleet",
"353": "light rain showers",
"356": "heavy rain showers",
"359": "heavy rain",
"362": "light sleet showers",
"365": "sleet showers",
"368": "light snow showers",
"371": "heavy snow showers",
"374": "light sleet showers",
"377": "heavy sleet",
"386": "rain showers and thunder",
"389": "heavy rain showers and thunder",
"392": "snow showers and thunder",
"395": "heavy snow showers",
}
def request(query, params):
params["url"] = url.format(query=quote(query), lang=params["language"])
params["raise_for_httperror"] = False
return params
def _weather_data(location: weather.GeoLocation, data: dict[str, t.Any]):
# the naming between different data objects is inconsitent, thus temp_C and
# tempC are possible
tempC: float = data.get("temp_C") or data.get("tempC") # type: ignore
return WeatherAnswer.Item(
location=location,
temperature=weather.Temperature(val=tempC, unit="°C"),
condition=WWO_TO_CONDITION[data["weatherCode"]],
feels_like=weather.Temperature(val=data["FeelsLikeC"], unit="°C"),
wind_from=weather.Compass(int(data["winddirDegree"])),
wind_speed=weather.WindSpeed(val=data["windspeedKmph"], unit="km/h"),
pressure=weather.Pressure(val=data["pressure"], unit="hPa"),
humidity=weather.RelativeHumidity(data["humidity"]),
cloud_cover=data["cloudcover"],
)
def response(resp):
res = EngineResults()
if resp.status_code == 404:
return res
json_data = resp.json()
geoloc = weather.GeoLocation.by_query(resp.search_params["query"])
weather_answer = WeatherAnswer(
current=_weather_data(geoloc, json_data["current_condition"][0]),
service="wttr.in",
)
for day in json_data["weather"]:
date = datetime.fromisoformat(day["date"])
time_slot_len = 24 // len(day["hourly"])
for index, forecast in enumerate(day["hourly"]):
forecast_data = _weather_data(geoloc, forecast)
forecast_data.datetime = weather.DateTime(date.replace(hour=index * time_slot_len + 1))
weather_answer.forecasts.append(forecast_data)
res.add(weather_answer)
return res
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