#!/bin/sh

SYNC_FILES=${SYNC_FILES:-yes}
INSTALL_PKGS=${INSTALL_PKGS:-yes}
RUN_CMDS=${RUN_CMDS:-yes}
PULL_GIT=${PULL_GIT:-yes}

. ./lib/lib.sh

set -e # Exit on error

_install_pkgs() {
  run $SYS_SUDO $PM_COMMAND $PM_UPDATE $PM_NOCONFIRM
  while read -r pkg; do
    run $SYS_SUDO $PM_COMMAND $PM_INSTALL $PM_NOCONFIRM $pkg
  done <$1
}

_sync_files() {
  #copy all files and folders from ./files to /
  #except for ./files/%HOME

  for item in ./files/*; do
    [ "$item" = "./files/%HOME" ] && continue
    # e.g. ./files/etc -> /etc
    run mkdir -p "$SYS_ROOT/$(basename "${item#./files/}")"
    run $SYS_SUDO cp -r "$item/." "$SYS_ROOT/${item#./files/}"
  done
}

_run_cmds() {
  while read -r cmd; do
    if [ "$(echo "$cmd" | cut -c1)" = "^" ]; then
      run $SYS_SUDO sh -c "$(echo "$cmd" | cut -c2-)"
    else
      run sh -c "$cmd"
    fi
  done <./command.list
}

arg_handler() {
  case $1 in
    --graphical|-g)
      bool "$INSTALL_PKGS" && _install_pkgs ./gpackage.list
    ;;
  esac
}

main() {
  bool "$PULL_GIT" && run git pull
  bool "$SYNC_FILES" && run cp -a "./files/%HOME/." "$HOME"
  bool "$SYNC_FILES" && _sync_files
  bool "$INSTALL_PKGS" && _install_pkgs ./package.list

  arg_handler "$@"

  bool "$RUN_CMDS" && _run_cmds
}

err_handler() {
  echo "Something went wrong!"
  echo "You can look at what went wrong by running this script more verbosely"
  echo "Sorry!"
}

trap err_handler ERR

echo "# exec: start."
bool ${TIME_TRACK:-no} && time main "$@" || main "$@"
echo "# exec: done."