add wttr.in engine

2 files changed, 139 insertions, 0 deletions

diff --git a/searx/engines/wttr.py b/searx/engines/wttr.py
new file mode 100644
index 000000000..fd80c6db7
--- /dev/null
+++ b/searx/engines/wttr.py
@@ -0,0 +1,134 @@
+# SPDX-License-Identifier: AGPL-3.0-or-later
+# lint: pylint
+"""wttr.in"""
+
+from json import loads
+from urllib.parse import quote
+from flask_babel import gettext
+
+about = {
+    "website": "https://wttr.in",
+    "wikidata_id": None,
+    "official_api_documentation": "https://github.com/chubin/wttr.in#json-output",
+    "use_official_api": True,
+    "require_api_key": False,
+    "results": "JSON",
+}
+
+categories = ["others"]
+
+url = "https://wttr.in/{query}?format=j1&lang={lang}"
+
+
+def get_weather_condition_key(lang):
+    if lang == "en":
+        return "weatherDesc"
+
+    return "lang_" + lang.lower()
+
+
+def generate_day_table(day):
+    res = ""
+
+    res += f"<tr><td>{gettext('Average temp.')}</td><td>{day['avgtempC']}°C / {day['avgtempF']}°F</td></tr>"
+    res += f"<tr><td>{gettext('Min temp.')}</td><td>{day['mintempC']}°C / {day['mintempF']}°F</td></tr>"
+    res += f"<tr><td>{gettext('Max temp.')}</td><td>{day['maxtempC']}°C / {day['maxtempF']}°F</td></tr>"
+    res += f"<tr><td>{gettext('UV index')}</td><td>{day['uvIndex']}</td></tr>"
+    res += f"<tr><td>{gettext('Sunrise')}</td><td>{day['astronomy'][0]['sunrise']}</td></tr>"
+    res += f"<tr><td>{gettext('Sunset')}</td><td>{day['astronomy'][0]['sunset']}</td></tr>"
+
+    return res
+
+
+def generate_condition_table(condition, lang, current=False):
+    res = ""
+
+    if current:
+        key = "temp_"
+    else:
+        key = "temp"
+
+    res += (
+        f"<tr><td><b>{gettext('Condition')}</b></td>"
+        f"<td><b>{condition[get_weather_condition_key(lang)][0]['value']}</b></td></tr>"
+    )
+    res += (
+        f"<tr><td><b>{gettext('Temperature')}</b></td>"
+        f"<td><b>{condition[key+'C']}°C / {condition[key+'F']}°F</b></td></tr>"
+    )
+    res += (
+        f"<tr><td>{gettext('Feels like')}</td><td>{condition['FeelsLikeC']}°C / {condition['FeelsLikeF']}°F</td></tr>"
+    )
+    res += (
+        f"<tr><td>{gettext('Wind')}</td><td>{condition['winddir16Point']} — "
+        f"{condition['windspeedKmph']} km/h / {condition['windspeedMiles']} mph</td></tr>"
+    )
+    res += (
+        f"<tr><td>{gettext('Visibility')}</td><td>{condition['visibility']} km / {condition['visibilityMiles']} mi</td>"
+    )
+    res += f"<tr><td>{gettext('Humidity')}</td><td>{condition['humidity']}%</td></tr>"
+
+    return res
+
+
+def request(query, params):
+    if query.replace('/', '') in [":help", ":bash.function", ":translation"]:
+        return None
+
+    if params["language"] == "all":
+        params["language"] = "en"
+    else:
+        params["language"] = params["language"].split("-")[0]
+
+    params["url"] = url.format(query=quote(query), lang=params["language"])
+
+    return params
+
+
+def response(resp):
+    results = []
+
+    result = loads(resp.text)
+
+    current = result["current_condition"][0]
+    location = result['nearest_area'][0]
+
+    forecast_indices = {3: gettext('Morning'), 4: gettext('Noon'), 6: gettext('Evening'), 7: gettext('Night')}
+
+    title = f"{location['areaName'][0]['value']}, {location['region'][0]['value']}"
+
+    infobox = f"<h2>{gettext('Current condition')}</h2><table><tbody>"
+
+    infobox += generate_condition_table(current, resp.search_params['language'], True)
+
+    infobox += "</tbody></table>"
+
+    for day in result["weather"]:
+        infobox += "<hr />"
+        infobox += f"<h2>{day['date']}</h2>"
+
+        infobox += f"<h3>{gettext('Overview')}</h3>"
+        infobox += "<table><tbody>"
+
+        infobox += generate_day_table(day)
+
+        infobox += "</tbody></table>"
+
+        infobox += f"<h3>{gettext('Forecast')}</h3>"
+        infobox += "<table><tbody>"
+
+        for time in forecast_indices.items():
+            infobox += f"<tr><td rowspan=\"7\"><b>{time[1]}</b></td></tr>"
+
+            infobox += generate_condition_table(day['hourly'][time[0]], resp.search_params['language'])
+
+        infobox += "</tbody></table>"
+
+    results.append(
+        {
+            "infobox": title,
+            "content": infobox,
+        }
+    )
+
+    return results
diff --git a/searx/settings.yml b/searx/settings.yml
index 3694c177a..6c7b4ea69 100644
--- a/searx/settings.yml
+++ b/searx/settings.yml
@@ -1760,6 +1760,11 @@ engines:
       results: HTML
       language: fr
 
+  - name: wttr.in
+    engine: wttr
+    shortcut: wttr
+    timeout: 9.0
+
   - name: brave
     shortcut: brave
     engine: xpath