import i3bar_base
import std/os
import std/osproc
import std/threadpool
import strutils

const wlan_nic: string ="wlan0"

# /sys/class/net/wlp2s0/operstate up or down if connected

proc get_essid(): string =
  let essid = execCmdEx("iwgetid -r")
  return strip(essid.output)

proc get_signal_quality(): string =
  let wl = readFile("/proc/net/wireless")
  let ln = splitLines(wl)[2]
  let links = split(ln,"  ")
  var qual = strip(links[1])
  qual = replace(qual,".","")
  return "[" & qual & "]"

proc get_wifi(): (string, string) =
  let essid = get_essid()
  if essid == "":
    return ("disconnected", "")
  let quality = get_signal_quality()
  return (essid, quality)

proc getObject(conn: string): i3barData =
  var data = newi3barData()
  data.full_text = conn
  data.border = purple
  return data

proc get_wifi_info()  =
  var last_qual = ""
  while true:
    let (essid, quality) = get_wifi()
    if quality != last_qual:
      let data = getObject(quality & " " & essid)
      outputJSON(data)
    last_qual = quality
    sleep(1000)

proc await_click_info() =
  while true:
    let input = parseInput()
    if input.button == 1:
      discard execCmd("alacritty -e nmtui-connect")

proc main() =
  if dirExists("/sys/class/net/" & wlan_nic):
    spawn get_wifi_info()
    spawn await_click_info()
    sync()
  else:
    echo "No WLAN"

main()