#!/bin/bash --posix

set -e

usage() {
  printf "%s\n" "Usage: Autodelete-Files  -u <steam username> -p <steam password>
  --user <steam username> | -u <steam username>
    Example:
      --user Sbinalla
  --server <server number> | -s <server number>
    Example:
      --server 0"
}

error() {
  printf "\n%s\n" "$1" >&2
  exit 1
}

confirmation() {
  while true; do
    read -p "${1}" -n 1 -r choice
    case "$choice" in
    y | Y) return 1 ;;
    n | N) return 0 ;;
    *) echo -e "\nInput must be either y, Y, n, or N" ;;
    esac
  done
}

SERVERNUM=""
STEAMUSER=""

while :; do
  case $1 in
  -h | -\? | --help)
    usage # Display a usage synopsis.
    exit
    ;;
  --) # End of all options.
    shift
    break
    ;;
  -s | --server)
    shift
    SERVERNUM="${1}"
    ;;
  -u | --user)
    shift
    STEAMUSER="${1}"
    ;;
  -?*)
    printf 'Unknown option: %s\n' "$1" >&2
    usage
    error
    ;;
  *) # Default case: No more options, so break out of the loop.
    break ;;
  esac
  shift
done


[[ "${SERVERNUM}" == "" ]] && error "Error: A server number must be provided"
[[ "${SERVERNUM}" =~ [^0-9]+. ]] && error "Error: The argument for server must be a number"

[[ "${STEAMUSER}" == "" ]] && error "Error: A steam user must be provided"


[[ -d ~/Arma/ ]] || \
  mkdir -p ~/Arma/ && echo "Created the Arma directory..."

steamcmd +quit
steamcmd +login "${STEAMUSER}" +force_install_dir ~/Arma/Server-"${SERVERNUM}" +app_update 233780 validate +quit

[[ -d ~/Arma/Server-"${SERVERNUM}"/mods ]] || \
  mkdir ~/Arma/Server-"${SERVERNUM}"/mods && echo "Creating new mods directory"

# These directories are necessary for Arma servers on linux
[[ -d  ~/".local/share/Arma 3" ]] || \
  mkdir -p ~/".local/share/Arma 3" && echo "Created the Arma 3 share"
[[ -d ~/".local/share/Arma 3 - Other Profiles" ]] || \
  mkdir -p ~/".local/share/Arma 3 - Other Profiles" && echo "Created the Arma 3 Other Profiles"


MODS=""
for mod in $(ls ~/Arma/Server-"${SERVERNUM}"/mods/)
do
  echo "Adding mod ${mod}"
  MODPATH=~/Arma/Server-"${SERVERNUM}"/mods
  MODS="${MODS}${MODPATH}/${mod}\;"
done

echo "Mods added to startup: ${MODS}"

SERVERPORT=$(("2300" + "${SERVERNUM}"))

tmux kill-session -t "Arma-Server-${SERVERNUM}" &>/dev/null

tmux new-session -d -s \
  "Arma-Server-${SERVERNUM}" \
    ~/Arma/Server-"${SERVERNUM}"/arma3server \
      -name=Arma-Server-"${SERVERNUM}" \
      -mod="${MODS}" \
      -config=~/Arma/Server-"${SERVERNUM}"/server.cfg \
      -noSound \
      -port="${SERVERPORT}"