import times, posix, strutils, os
import strformat
import times
import libfswatch
import std/[streams, osproc]

import libfswatch
import libfswatch/fswatch

let file = "/home/floscr/Code/Projects/org-parser/src/js/example/sandbox.nim"

var ps: seq[Process]

proc compile(path: string) =
  echo "Compiling..."
  let p = startProcess(
    "nim",
    args= [
      "js",
      "--verbosity:0",
      "--hint[Processing]:off",
      "--hint[XDeclaredButNotUsed]:off",
      "--hint[DuplicateModuleImport]:off",
      "--excessiveStackTrace:on",
      "--warning[UnusedImport]:off",
      path,
    ],
    options = {poUsePath, poStdErrToStdOut}
  )
  ps.add(p)
  discard p.waitForExit()

  var line: string
  while p.running() and p.outputStream.readLine(line):
    echo line

  echo "Compilation Finished"
  p.close()
  ps = @[]

proc monitorCallback(event: fsw_cevent, event_num: cuint) =
  echo event_num
  if event_num == 10:
    echo &"""[{times.now().format("yyyy-MM-dd HH:MM:ss")}]: {event.path} was modified. Compiling..."""
    for p in ps:
      p.close()
    ps = @[]

    compile(file)

var mon = newMonitor()
mon.addPath(file)
mon.setCallback(monitorCallback)
mon.start()