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Mikubot-2/otouto/plugins/lastfm.lua

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-- TODO: Add support for librefm API.
-- Just kidding, nobody actually uses that.
local lastfm = {}
local HTTP = require('socket.http')
local URL = require('socket.url')
local JSON = require('dkjson')
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local utilities = require('otouto.utilities')
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function lastfm:init(config)
if not config.lastfm_api_key then
print('Missing config value: lastfm_api_key.')
print('lastfm.lua will not be enabled.')
return
end
lastfm.triggers = utilities.triggers(self.info.username, config.cmd_pat):t('lastfm', true):t('np', true):t('fmset', true).table
lastfm.doc = [[```
]]..config.cmd_pat..[[np [username]
Returns what you are or were last listening to. If you specify a username, info will be returned for that username.
]]..config.cmd_pat..[[fmset <username>
Sets your last.fm username. Otherwise, ]]..config.cmd_pat..[[np will use your Telegram username. Use "]]..config.cmd_pat..[[fmset --" to delete it.
```]]
end
lastfm.command = 'lastfm'
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function lastfm:action(msg, config)
local input = utilities.input(msg.text)
if string.match(msg.text, '^'..config.cmd_pat..'lastfm') then
utilities.send_message(self, msg.chat.id, lastfm.doc, true, msg.message_id, true)
return
elseif string.match(msg.text, '^'..config.cmd_pat..'fmset') then
if not input then
utilities.send_message(self, msg.chat.id, lastfm.doc, true, msg.message_id, true)
elseif input == '--' or input == utilities.char.em_dash then
self.database.users[msg.from.id_str].lastfm = nil
utilities.send_reply(self, msg, 'Your last.fm username has been forgotten.')
else
self.database.users[msg.from.id_str].lastfm = input
utilities.send_reply(self, msg, 'Your last.fm username has been set to "' .. input .. '".')
end
return
end
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local url = 'http://ws.audioscrobbler.com/2.0/?method=user.getrecenttracks&format=json&limit=1&api_key=' .. config.lastfm_api_key .. '&user='
local username
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local alert = ''
if input then
username = input
elseif self.database.users[msg.from.id_str].lastfm then
username = self.database.users[msg.from.id_str].lastfm
elseif msg.from.username then
username = msg.from.username
alert = '\n\nYour username has been set to ' .. username .. '.\nTo change it, use '..config.cmd_pat..'fmset <username>.'
self.database.users[msg.from.id_str].lastfm = username
else
utilities.send_reply(self, msg, 'Please specify your last.fm username or set it with '..config.cmd_pat..'fmset.')
return
end
url = url .. URL.escape(username)
local jstr, res
utilities.with_http_timeout(
1, function ()
jstr, res = HTTP.request(url)
end)
if res ~= 200 then
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utilities.send_reply(self, msg, config.errors.connection)
return
end
local jdat = JSON.decode(jstr)
if jdat.error then
utilities.send_reply(self, msg, 'Please specify your last.fm username or set it with '..config.cmd_pat..'fmset.')
return
end
jdat = jdat.recenttracks.track[1] or jdat.recenttracks.track
if not jdat then
utilities.send_reply(self, msg, 'No history for this user.' .. alert)
return
end
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local output = input or msg.from.first_name
output = '🎵 ' .. output
if jdat['@attr'] and jdat['@attr'].nowplaying then
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output = output .. ' is currently listening to:\n'
else
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output = output .. ' last listened to:\n'
end
local title = jdat.name or 'Unknown'
local artist = 'Unknown'
if jdat.artist then
artist = jdat.artist['#text']
end
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output = output .. title .. ' - ' .. artist .. alert
utilities.send_message(self, msg.chat.id, output)
end
return lastfm