#!/usr/bin/env miaou-bash

# CONSTANTS

# FUNCTIONS

function self_upgrade {
  local backup="$MIAOU_BASH_DIR".before_upgrade
  sudo mv "$MIAOU_BASH_DIR" "$backup"
  if "$backup"/install.sh upgraded; then
    sudo rm -rf "$backup"
    echo -n "version: "
    . "$MIAOU_BASH_DIR"/bin/miaou-bash --version
  else
    echo "ERROR: trouble during self-upgrade: revert back"
    sudo rm -rf "$MIAOU_BASH_DIR"
    sudo mv "$backup" "$MIAOU_BASH_DIR"
  fi
}

# MAIN

source "$MIAOU_BASH_DIR"/lib/functions.bash
sudo_root
assert_system_mode

current=$(miaou-bash --version)
latest=$("$MIAOU_BASH_DIR"/tools/wget_semver artcode miaou/miaou-bash)
if [[ "$current" == "$latest" ]]; then
  echo "up-to-date version: $current"
else
  self_upgrade
fi