local dkjson = require("lain.util").dkjson
local math = require("math")
local awful = require("awful")
local beautiful = require("beautiful")

local widgets = {}

local function poloniex_price(output, pair, prec)
    local xc, pos, err = dkjson.decode(output, 1, nil)
    if not prec then prec = 4 end
    val = (xc and xc[pair]["last"]) or 0
    val = math.floor(val*10^prec+0.5)/10^prec
    return (not err and val) or "n/a"
end

-- widgets.eth_widget = awful.widget.watch(
--   "curl -m5 -s 'https://poloniex.com/public?command=returnTicker'", 600,
--   function(widget, output)
--     widget:set_text(poloniex_price(output, 'BTC_ETH') .. " Ƀ/Ξ")
--   end
-- )

local function coindesk_price(output, base, prec)
    local xc, pos, err = dkjson.decode(output, 1, nil)
    if not prec then prec = 4 end
    val = (xc and xc["bpi"][base]["rate_float"]) or 0
    val = math.floor(val*10^prec+0.5)/10^prec
    return (not err and val) or "n/a"
end

widgets.btc_widget = awful.widget.watch(
  "curl -m5 -Ls 'https://api.coindesk.com/v1/bpi/currentprice/EUR.json'", 600,
  function(widget, output)
    widget:set_text(coindesk_price(output, "EUR", 2) .. " €/Ƀ")
  end
)

return widgets