import std/[times, os]
import strutils

# ./deadswitch <file> <yyyy-MM-dd> <HH:mm> <path>

var DATE = ""
var TIME = ""
var FILE = ""
var PATH = ""

proc read_args() =
  try:
    DATE = paramStr(2)
    TIME = paramStr(3)
    FILE = paramStr(1)
    PATH = paramStr(4)
  except:
    echo "Please provide commandline arguments in the format:"
    echo "<file> <yyyy-MM-dd> <HH:mm> <path>"
    quit(QuitFailure)

type PayloadType = enum Plaintext, Encrypted
type Payload = tuple
  filename: string
  contents: string

proc release_payload(p_type: PayloadType, payload: Payload) =
  echo "Releasing payload..."
  sleep(1000)
  if p_type == PayloadType.Plaintext:
    echo payload.filename
    echo payload.contents
  else:
    echo payload.filename
    echo "<Encrypted file>"

  # copy the file contents
  writeFile(PATH & payload.filename, payload.contents)

while true:
  read_args()

  writeFile(PATH & FILE, DATE) # temp file
  let now = now() # get current localtime
  let now_date = now.format("yyyy-MM-dd") # extract the date
  let now_time = now.format("HH:mm") # extract the time

  let file = readFile(FILE) # read in the contents of the payload file
  let format = FILE.split('.') # get the format of the file

  # check the file type based on it's format
  var p_type = PayloadType.Plaintext
  case format[high(format)]:
    of "age", "pgp", "gpg":
      p_type = PayloadType.Encrypted
    else:
      p_type = PayloadType.Plaintext

  if now_date == DATE: #and now_time == TIME: # check if both date & time are the same
    let payload: Payload = (filename: FILE, contents: file) # create a new payload object
    release_payload(p_type, payload) # release it!
    break

  echo "Not now :c"
  sleep(10000) # wait 10 seconds (10000 milliseconds)