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Mikubot/plugins/btc.lua
2015-11-12 17:42:03 +01:00

57 lines
1.5 KiB
Lua

-- See https://bitcoinaverage.com/api
local function getBTCX(amount,currency)
local base_url = 'https://api.bitcoinaverage.com/ticker/global/'
-- Do request on bitcoinaverage, the final / is critical!
local res,code = https.request(base_url..currency.."/")
if code ~= 200 then return nil end
local data = json:decode(res)
local ask = string.gsub(data.ask, "%.", "%,")
local bid = string.gsub(data.bid, "%.", "%,")
-- Easy, it's right there
text = "BTC/"..currency..'\n'..'Kaufen: '..ask..'\n'..'Verkaufen: '..bid
-- If we have a number as second parameter, calculate the bitcoin amount
if amount~=nil then
btc = tonumber(amount) / tonumber(data.ask)
text = text.."\n "..currency .." "..amount.." = BTC "..btc
end
return text
end
local function run(msg, matches)
local cur = 'EUR'
local amt = nil
-- Get the global match out of the way
if matches[1] == "!btc" then
return getBTCX(amt,cur)
end
if matches[2] ~= nil then
-- There is a second match
amt = matches[2]
cur = string.upper(matches[1])
else
-- Just a EUR or USD param
cur = string.upper(matches[1])
end
return getBTCX(amt,cur)
end
return {
description = "Globaler Bitcoin-Wert (in EUR oder USD)",
usage = {
"/btc: Zeigt aktuellen Bitcoin-Kurs",
"/btc [EUR|USD] [Menge]: Rechnet Bitcoin in Euro/USD um"
},
patterns = {
"^/btc$",
"^/btc ([Ee][Uu][Rr])$",
"^/btc ([Uu][Ss][Dd])$",
"^/btc (EUR) (%d+[%d%.]*)$",
"^/btc (USD) (%d+[%d%.]*)$"
},
run = run
}