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Mikubot-2/plugins/hackernews.lua

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local hackernews = {}
local HTTPS = require('ssl.https')
local JSON = require('dkjson')
local bindings = require('bindings')
local utilities = require('utilities')
hackernews.command = 'hackernews'
hackernews.doc = [[```
Returns four (if group) or eight (if private message) top stories from Hacker News.
Alias: /hn
```]]
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function hackernews:init()
hackernews.triggers = utilities.triggers(self.info.username):t('hackernews', true):t('hn', true).table
end
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function hackernews:action(msg)
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bindings.sendChatAction(self, { chat_id = msg.chat.id, action = 'typing' } )
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local jstr, res = HTTPS.request('https://hacker-news.firebaseio.com/v0/topstories.json')
if res ~= 200 then
utilities.send_reply(self, msg, self.config.errors.connection)
return
end
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local jdat = JSON.decode(jstr)
local res_count = 4
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if msg.chat.id == msg.from.id then
res_count = 8
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end
local output = '*Hacker News:*\n'
for i = 1, res_count do
local res_url = 'https://hacker-news.firebaseio.com/v0/item/' .. jdat[i] .. '.json'
jstr, res = HTTPS.request(res_url)
if res ~= 200 then
utilities.send_reply(self, msg, self.config.errors.connection)
return
end
local res_jdat = JSON.decode(jstr)
local title = res_jdat.title:gsub('%[.+%]', ''):gsub('%(.+%)', ''):gsub('&', '&')
if title:len() > 48 then
title = title:sub(1, 45) .. '...'
end
local url = res_jdat.url
if not url then
utilities.send_reply(self, msg, self.config.errors.connection)
return
end
if url:find('%(') then
output = output .. '' .. title .. '\n' .. url:gsub('_', '\\_') .. '\n'
else
output = output .. '• [' .. title .. '](' .. url .. ')\n'
end
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end
utilities.send_message(self, msg.chat.id, output, true, nil, true)
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end
return hackernews