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add forex widgets
[etc/awesome.git] / .config / awesome / forex_widgets.lua
1 local dkjson = require("lain.util").dkjson
2 local math = require("math")
3 local lain = require("lain")
4 local beautiful = require("beautiful")
5
6 local widgets = {}
7
8 local function parse_ecb_rates(output, symbol, prec)
9     local xc, pos, err = dkjson.decode(output, 1, nil)
10     if not prec then prec = 2 end
11     print (xc["rates"]["NZD"])
12     val = (xc and xc["rates"][symbol]) or 0
13     print (val)
14     val = math.floor(val*10^prec+0.5)/10^prec
15     return (not err and val) or "n/a"
16 end
17
18 widgets.ecb_widget = lain.widget.watch({
19     cmd = "curl -m5 -s 'https://api.exchangeratesapi.io/latest?base=EUR'",
20     timeout = 600,
21     settings = function()
22         widget:set_text(parse_ecb_rates(output, 'NZD') .. " NZD = "
23           .. parse_ecb_rates(output, 'CHF') .. " CHF")
24     end,
25 })
26
27 return widgets