151 lines
4.9 KiB
Lua
151 lines
4.9 KiB
Lua
local weather = {}
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local HTTPS = require('ssl.https')
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local URL = require('socket.url')
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local JSON = require('dkjson')
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local utilities = require('otouto.utilities')
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local bindings = require('otouto.bindings')
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local redis = (loadfile "./otouto/redis.lua")()
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function weather:init(config)
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if not cred_data.forecastio_apikey then
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print('Missing config value: forecastio_apikey.')
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print('weather.lua will not be enabled.')
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return
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elseif not cred_data.google_apikey then
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print('Missing config value: google_apikey.')
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print('weather.lua will not be enabled.')
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return
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end
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weather.triggers = {
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"^/wetter$",
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"^/wetter (.*)$",
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"^/w$",
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"^/w (.*)$"
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}
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weather.doc = [[*
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]]..config.cmd_pat..[[wetter*: Wetter für deinen Wohnort _(/location set [Ort])_
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*]]..config.cmd_pat..[[wetter* _<Ort>_: Wetter für diesen Ort
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]]
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end
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weather.command = 'w [Ort]'
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local BASE_URL = "https://api.forecast.io/forecast"
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local apikey = cred_data.forecastio_apikey
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local google_apikey = cred_data.google_apikey
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function get_city_name(lat, lng)
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local city = redis:hget('telegram:cache:weather:pretty_names', lat..','..lng)
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if city then return city end
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local url = 'https://maps.googleapis.com/maps/api/geocode/json?latlng='..lat..','..lng..'&result_type=political&language=de&key='..google_apikey
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local res, code = HTTPS.request(url)
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if code ~= 200 then return 'Unbekannte Stadt' end
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local data = JSON.decode(res).results[1]
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local city = data.formatted_address
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print('Setting '..lat..','..lng..' in redis hash telegram:cache:weather:pretty_names to "'..city..'"')
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redis:hset('telegram:cache:weather:pretty_names', lat..','..lng, city)
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return city
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end
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function weather:get_weather(lat, lng)
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print('Finde Wetter in '..lat..', '..lng)
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local text = redis:get('telegram:cache:weather:'..lat..','..lng)
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if text then print('...aus dem Cache') return text end
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local url = BASE_URL..'/'..apikey..'/'..lat..','..lng..'?lang=de&units=si&exclude=minutely,hourly,daily,alerts,flags'
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local response_body = {}
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local request_constructor = {
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url = url,
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method = "GET",
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sink = ltn12.sink.table(response_body)
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}
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local ok, response_code, response_headers, response_status_line = HTTPS.request(request_constructor)
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if not ok then return nil end
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local data = JSON.decode(table.concat(response_body))
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local ttl = string.sub(response_headers["cache-control"], 9)
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local weather = data.currently
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local city = get_city_name(lat, lng)
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local temperature = string.gsub(round(weather.temperature, 1), "%.", ",")
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local feelslike = string.gsub(round(weather.apparentTemperature, 1), "%.", ",")
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local temp = '*Wetter in '..city..':*\n'..temperature..' °C'
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local conditions = ' | '..weather.summary
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if weather.icon == 'clear-day' then
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conditions = conditions..' ☀️'
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elseif weather.icon == 'clear-night' then
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conditions = conditions..' 🌙'
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elseif weather.icon == 'rain' then
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conditions = conditions..' ☔️'
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elseif weather.icon == 'snow' then
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conditions = conditions..' ❄️'
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elseif weather.icon == 'sleet' then
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conditions = conditions..' 🌨'
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elseif weather.icon == 'wind' then
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conditions = conditions..' 💨'
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elseif weather.icon == 'fog' then
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conditions = conditions..' 🌫'
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elseif weather.icon == 'cloudy' then
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conditions = conditions..' ☁️☁️'
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elseif weather.icon == 'partly-cloudy-day' then
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conditions = conditions..' 🌤'
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elseif weather.icon == 'partly-cloudy-night' then
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conditions = conditions..' 🌙☁️'
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else
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conditions = conditions..''
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end
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local windspeed = ' | 💨 '..string.gsub(round(weather.windSpeed, 1), "%.", ",")..' m/s'
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local text = temp..conditions..windspeed
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if temperature ~= feelslike then
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text = text..'\n(gefühlt: '..feelslike..' °C)'
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end
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cache_data('weather', lat..','..lng, text, tonumber(ttl), 'key')
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return text
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end
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function weather:action(msg, config, matches)
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local user_id = msg.from.id
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if matches[1] ~= '/wetter' and matches[1] ~= '/w' then
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city = matches[1]
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else
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local set_location = get_location(user_id)
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if not set_location then
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city = 'Berlin, Deutschland'
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else
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city = set_location
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end
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end
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local lat = redis:hget('telegram:cache:weather:'..string.lower(city), 'lat')
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local lng = redis:hget('telegram:cache:weather:'..string.lower(city), 'lng')
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if not lat and not lng then
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print('Koordinaten nicht eingespeichert, frage Google...')
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coords = utilities.get_coords(city, config)
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lat = coords.lat
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lng = coords.lon
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end
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if not lat and not lng then
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utilities.send_reply(self, msg, '*Diesen Ort gibt es nicht!*', true)
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return
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end
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redis:hset('telegram:cache:weather:'..string.lower(city), 'lat', lat)
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redis:hset('telegram:cache:weather:'..string.lower(city), 'lng', lng)
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local text = weather:get_weather(lat, lng)
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if not text then
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text = 'Konnte das Wetter von dieser Stadt nicht bekommen.'
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end
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utilities.send_reply(self, msg, text, true)
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end
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return weather
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