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

local widgets = {}

local function parse_ecb_rates(output, symbol, prec)
    local xc, pos, err = dkjson.decode(output, 1, nil)
    if not prec then prec = 2 end
    val = (xc and xc["rates"] and xc["rates"][symbol]) or 0
    print (val)
    val = math.floor(val*10^prec+0.5)/10^prec
    return (not err and val) or "n/a"
end

widgets.ecb_widget = awful.widget.watch(
  "curl -m5 -s 'http://api.exchangeratesapi.io/v1/latest?base=EUR&access_key=28639a585f6b46bbddd41d3ffe337fc5&symbols=NZD,USD,CHF'", 86400,
  function(widget, output)
    widget:set_text(parse_ecb_rates(output, 'NZD') .. " NZD = "
    .. parse_ecb_rates(output, 'CHF') .. " CHF")
  end
)

return widgets