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Mikubot-2/plugins/weather.lua
topkecleon 725261fcf7 Version 3.8
Relicense to AGPLv3, with consent of contributors.
bindings.lua completely rewritten. Shift to multipart-post.
Updated readme.
New plugins: bing.lua, channel.lua.
Removed plugins: floodcontrol.lua, librefm.lua.
luarun.lua: Will now serialize returned tables. Aliased "/return" to "/lua return".
2016-05-29 13:08:39 -04:00

64 lines
1.7 KiB
Lua
Executable File

local weather = {}
local HTTP = require('socket.http')
local JSON = require('dkjson')
local utilities = require('utilities')
function weather:init()
if not self.config.owm_api_key then
print('Missing config value: owm_api_key.')
print('weather.lua will not be enabled.')
return
end
weather.triggers = utilities.triggers(self.info.username):t('weather', true).table
end
weather.command = 'weather <location>'
weather.doc = [[```
/weather <location>
Returns the current weather conditions for a given location.
```]]
function weather:action(msg)
local input = utilities.input(msg.text)
if not input then
if msg.reply_to_message and msg.reply_to_message.text then
input = msg.reply_to_message.text
else
utilities.send_message(self, msg.chat.id, weather.doc, true, msg.message_id, true)
return
end
end
local coords = utilities.get_coords(self, input)
if type(coords) == 'string' then
utilities.send_reply(self, msg, coords)
return
end
local url = 'http://api.openweathermap.org/data/2.5/weather?APPID=' .. self.config.owm_api_key .. '&lat=' .. coords.lat .. '&lon=' .. coords.lon
local jstr, res = HTTP.request(url)
if res ~= 200 then
utilities.send_reply(self, msg, self.config.errors.connection)
return
end
local jdat = JSON.decode(jstr)
if jdat.cod ~= 200 then
utilities.send_reply(self, msg, 'Error: City not found.')
return
end
local celsius = string.format('%.2f', jdat.main.temp - 273.15)
local fahrenheit = string.format('%.2f', celsius * (9/5) + 32)
local output = '`' .. celsius .. '°C | ' .. fahrenheit .. '°F, ' .. jdat.weather[1].description .. '.`'
utilities.send_reply(self, msg, output, true)
end
return weather