#!/bin/bash
[ "$1" == "-h" ] && echo "install-crun.sh install|update|remove|restart|scripts|reinstall" && exit 1

SERVICE_NAME=""
SCRIPTS_DEPLOY_PATH=""

[ -r "env-crun" ] && . ./env-crun
[ -r "common.sh" ] && . ./common.sh

ARCH="$(uname -m | sed -e 's/x86_64/amd64/' -e 's/\(arm\)\(64\)\?.*/\1\2/' -e 's/aarch64$/arm64/')"
OS="$(uname | tr '[:upper:]' '[:lower:]')"
CRUN_VERSION="${CRUN_VERSION:-1.21}"
CRUN_URL="https://github.com/containers/crun/releases/download/${CRUN_VERSION}/crun-${CRUN_VERSION}-${OS}-${ARCH}"
CMD_TSK=${CMD_TSK:-${1:-install}}
export LC_CTYPE=C.UTF-8 LANG=C.UTF-8

_update_binary() {
  [ -z "$CRUN_VERSION" ] && return 1
  local curr_vers has_crun
  has_crun=$(type crun 2>/dev/null)
  [ -n "$has_crun" ] && curr_vers=$(crun --version 2>/dev/null | grep "^crun version" | awk '{print $3}')
  [ "$curr_vers" == "$CRUN_VERSION" ] && return 0
  if ! curl -fsSL "$CRUN_URL" -o crun; then
    echo "error downloading crun"; return 1
  fi
  chmod +x crun && sudo mv crun /usr/local/bin/crun
  [ -f "/usr/bin/crun" ] && sudo mv /usr/bin/crun /usr/bin/_crun
  return 0
}

_config_crun() { return 0; }

case "$CMD_TSK" in
  reinstall)
    sudo rm -f /usr/local/bin/crun ;&
  install)
    _update_binary || { echo "error crun install"; exit 1; }
    _config_crun
    ;;
  update)   _common_update ;;
  scripts)  _common_deploy_scripts ;;
  config)   _config_crun ;;
  restart)  _common_service_restart ;;
  remove)   sudo rm -f /usr/local/bin/crun ;;
  delete)   sudo rm -f /usr/local/bin/crun /usr/bin/_crun ;;
esac