#!/bin/bash
ATTEMPTS_NUM=7
SECRET_STRING=()
VISIBLE_STRING=()
FILEPATH=""

usage ()
{
  echo "Usage: ./hangman.sh -f file.txt -a 20"
  echo ""
  echo "PARAMETERS"
  echo "    -h (show this help prompt)"
  echo "    -a $ (set the amount of available attempts)"
  echo "    -f file.txt (select the file to pull lines from)"
  exit
}

while getopts a:f:h flag; do
  case "${flag}" in
    a) ATTEMPTS_NUM=${OPTARG};;
    f) FILEPATH=${OPTARG};;
    h) usage;;
  esac
done

status() {
  clear
  cat <<'END_CAT'
 ______________
< Buena suerte >
 --------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||
END_CAT
  echo "Intenta adivinar el número entre 0 y $POOL_NUM!"
  echo "Intentos restantes: $ATTEMPTS_NUM"
}

checkWin() {
  if [[ "$1" == "$RANDOM_NUM" ]]; then
    echo "Enhorabuena! El número era $RANDOM_NUM!"
    exit
  fi

  if [[ "$1" != "$RANDOM_NUM" ]]; then
    if [[ $1 -gt $RANDOM_NUM ]]; then
      echo "El número es demasiado alto!"
      ATTEMPTS_NUM=$((ATTEMPTS_NUM - 1))
      return 0
    fi
    if [[ $1 -lt $RANDOM_NUM ]]; then
      echo "El número es demasiado bajo!"
      ATTEMPTS_NUM=$((ATTEMPTS_NUM - 1))
      return 0
    fi
  fi
}

checkLose() {
  if [[ $ATTEMPTS_NUM == 0 ]]; then
    echo "Pierdes! El número era $RANDOM_NUM :/"
    exit
  fi
}

getLine() {
  if [[ ! -f $FILEPATH ]]; then
    echo "File doesn't exist!"
    exit
  fi
  out=$(shuf -n1 $FILEPATH)
  echo $out
}

arrayIze() {
  LINE=$1
  LINE_LEN="${#LINE}"

  for ((i = 0; i < $LINE_LEN; i++)); do
    CHAR=${LINE:i:1}
    SECRET_STRING+=("$CHAR")
    SECRET_STRING+=(" ")

    if [[ $CHAR == " " ]]; then
      VISIBLE_STRING+=('_')
    else
      VISIBLE_STRING+=("#")
    fi
  done

  echo ${SECRET_STRING[*]}
  echo ${VISIBLE_STRING[*]}
}

main() {
  if [[ $FILEPATH == "" ]]; then
    usage
  fi
  line=$(getLine)
  echo $line
  arrayIze "$line"
  # while true; do
  #   status
  #   #checkLose
  #   read -p "Número: " num_attempt
  #   #checkWin $num_attempt
  #   read -p "Pulse enter para continuar: "
  # done
}

main