223 lines
7.3 KiB
Lua
223 lines
7.3 KiB
Lua
local forecast = {}
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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 forecast: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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forecast.triggers = {
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"^(/f)$",
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"^(/f) (.*)$",
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"^(/fh)$",
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"^(/fh) (.*)$",
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"^(/forecast)$",
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"^(/forecast) (.*)$",
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"^(/forecasth)$",
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"^(/forecasth) (.*)$"
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}
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forecast.doc = [[*
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]]..config.cmd_pat..[[f*: Wettervorhersage für deinen Wohnort _(/location set <Ort>)_
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*]]..config.cmd_pat..[[f* _<Ort>_: Wettervorhersage für diesen Ort
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*]]..config.cmd_pat..[[fh*: 24-Stunden-Wettervorhersage für deine Stadt _(/location set [Ort]_
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*]]..config.cmd_pat..[[fh* _<Ort>_: 24-Stunden-Wettervorhersage für diesen Ort
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]]
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end
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forecast.command = 'forecast'
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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 get_condition_symbol(weather, n)
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if weather.data[n].icon == 'clear-day' then
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return '☀️'
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elseif weather.data[n].icon == 'clear-night' then
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return '🌙'
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elseif weather.data[n].icon == 'rain' then
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return '☔️'
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elseif weather.data[n].icon == 'snow' then
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return '❄️'
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elseif weather.data[n].icon == 'sleet' then
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return '🌨'
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elseif weather.data[n].icon == 'wind' then
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return '💨'
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elseif weather.data[n].icon == 'fog' then
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return '🌫'
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elseif weather.data[n].icon == 'cloudy' then
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return '☁️☁️'
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elseif weather.data[n].icon == 'partly-cloudy-day' then
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return '🌤'
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elseif weather.data[n].icon == 'partly-cloudy-night' then
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return '🌙☁️'
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else
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return ''
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end
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end
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function get_temp(weather, n, hourly)
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if hourly then
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local temperature = string.gsub(round(weather.data[n].temperature, 1), "%.", ",")
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local condition = weather.data[n].summary
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return temperature..'°C | '..get_condition_symbol(weather, n)..' '..condition
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else
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local day = string.gsub(round(weather.data[n].temperatureMax, 1), "%.", ",")
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local night = string.gsub(round(weather.data[n].temperatureMin, 1), "%.", ",")
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local condition = weather.data[n].summary
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return '☀️ '..day..'°C | 🌙 '..night..'°C | '..get_condition_symbol(weather, n)..' '..condition
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end
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end
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function forecast:get_forecast(lat, lng)
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print('Finde Wetter in '..lat..', '..lng)
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local text = redis:get('telegram:cache:forecast:'..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=currently,minutely,hourly,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.daily
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local city = get_city_name(lat, lng)
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local header = '*Vorhersage für '..city..':*\n_'..weather.summary..'_\n'
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local text = '*Heute:* '..get_temp(weather, 1)
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local text = text..'\n*Morgen:* '..get_temp(weather, 2)
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for day in pairs(weather.data) do
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if day > 2 then
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text = text..'\n*'..convert_timestamp(weather.data[day].time, '%a, %d.%m')..'*: '..get_temp(weather, day)
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end
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end
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local text = string.gsub(text, "Mon", "Mo")
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local text = string.gsub(text, "Tue", "Di")
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local text = string.gsub(text, "Wed", "Mi")
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local text = string.gsub(text, "Thu", "Do")
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local text = string.gsub(text, "Fri", "Fr")
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local text = string.gsub(text, "Sat", "Sa")
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local text = string.gsub(text, "Sun", "So")
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cache_data('forecast', lat..','..lng, header..text, tonumber(ttl), 'key')
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return header..text
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end
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function forecast:get_forecast_hourly(lat, lng)
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print('Finde stündliches Wetter in '..lat..', '..lng)
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local text = redis:get('telegram:cache:forecast:'..lat..','..lng..':hourly')
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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=currently,minutely,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.hourly
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local city = get_city_name(lat, lng)
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local header = '*24-Stunden-Vorhersage für '..city..':*\n_'..weather.summary..'_'
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local text = ""
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for hour in pairs(weather.data) do
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if hour < 26 then
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text = text..'\n*'..convert_timestamp(weather.data[hour].time, '%H:%M Uhr')..'* | '..get_temp(weather, hour, true)
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end
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end
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cache_data('forecast', lat..','..lng..':hourly', header..text, tonumber(ttl), 'key')
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return header..text
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end
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function forecast:action(msg, config, matches)
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local user_id = msg.from.id
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local city = get_location(user_id)
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if matches[2] then
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city = matches[2]
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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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if matches[1] == '/forecasth' or matches[1] == '/fh' then
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text = forecast:get_forecast_hourly(lat, lng)
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else
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text = forecast:get_forecast(lat, lng)
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end
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if not text then
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text = '*Konnte die Wettervorhersage für diese 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 forecast
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