#!/usr/bin/env sh

#https://github.com/freessl/get.acme.sh

_exists() {
  cmd="$1"
  if [ -z "$cmd" ] ; then
    echo "Usage: _exists cmd"
    return 1
  fi
  if type command >/dev/null 2>&1 ; then
    command -v $cmd >/dev/null 2>&1
  else
    type $cmd >/dev/null 2>&1
  fi
  ret="$?"
  return $ret
}

echo "Installing from online archive."

acmesh="https://freessl.cn/api/acme.sh?token="
archive="https://freessl.cn/api/acme.tar.gz"

if _exists curl && [ "${ACME_USE_WGET:-0}" = "0" ]; then
  curl $archive > acme.tar.gz
  curl $acmesh > acme.sh
elif _exists wget ; then
  wget -O acme.tar.gz $archive
  wget -O acme.sh $acmesh
else
  echo "Sorry, you must have curl or wget installed first."
  echo "Please install either of them and try again."
fi

(
  echo "Extracting acme.tar.gz"
  if ! (tar xzf acme.tar.gz || gtar xzf acme.tar.gz); then
    echo "\033[1;31;40mExtraction error.\033[0m"
    exit 1
  fi

  mv acme.sh acme-source
  cd acme-source
  chmod +x acme.sh
  if ./acme.sh install; then
    echo "\033[1;31;32mInstall success!\033[0m"
  fi

  cd .. \
    && rm -rf acme-source acme.tar.gz
)