#!/bin/bash

if [[ $UID != 0 ]]; then
    exit 255
fi

caddy_tmp_install="/tmp/caddy"
caddy_install="/usr/local/bin/caddy"

if [[ -f "$caddy_tmp_install" ]]; then
    rm "$caddy_tmp_install"
fi

wget "https://caddyserver.com/api/download?os=linux&arch=amd64&p=github.com%2Fcaddy-dns%2Fcloudflare" -O "$caddy_tmp_install"

chmod +x "$caddy_tmp_install"
caddy_version="$(/tmp/caddy version)"
caddy_version_array=($caddy_version)
caddy_version="${caddy_version_array[0]}"

mv "$caddy_tmp_install" "$caddy_install-$caddy_version"

if [[ ! -L "$caddy_install" ]] && [[ ! -e "$caddy_install" ]]; then
    rm -f "$caddy_install"
    ln -s -f "$caddy_install-$caddy_version" "$caddy_install"
    chmod +x "$caddy_install"
fi