#!/usr/bin/env bash
PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
export PATH
#=================================================
#       System Required: CentOS/Debian/Ubuntu
#       Description: Caddy Install
#       Version: 1.0.8
#       Author: Toyo
#       Blog: https://doub.io/shell-jc1/
#=================================================
file="/usr/local/caddy/"
caddy_file="/usr/local/caddy/caddy"
caddy_conf_file="/usr/local/caddy/Caddyfile"
Info_font_prefix="\033[32m" && Error_font_prefix="\033[31m" && Font_suffix="\033[0m" && Red_font_prefix="\033[31m" && Font_color_suffix="\033[0m" && Green_background_prefix="\033[42;37m"
Error="${Red_font_prefix}[错误]${Font_color_suffix}"
check_root() {
  [[ $EUID != 0 ]] && echo -e "${Error} 当前非ROOT账号(或没有ROOT权限)，无法继续操作，请更换ROOT账号或使用 ${Green_background_prefix}sudo su${Font_color_suffix} 命令获取临时ROOT权限（执行后可能会提示输入当前账号的密码）。" && exit 1
}
check_sys() {
  if [[ -f /etc/redhat-release ]]; then
    release="centos"
  elif grep -q -E -i "debian" /etc/issue; then
    release="debian"
  elif grep -q -E -i "ubuntu" /etc/issue; then
    release="ubuntu"
  elif grep -q -E -i "centos|red hat|redhat" /etc/issue; then
    release="centos"
  elif grep -q -E -i "debian" /proc/version; then
    release="debian"
  elif grep -q -E -i "ubuntu" /proc/version; then
    release="ubuntu"
  elif grep -q -E -i "centos|red hat|redhat" /proc/version; then
    release="centos"
  fi
  bit=$(uname -m)
}
check_installed_status() {
  [[ ! -e ${caddy_file} ]] && echo -e "${Error_font_prefix}[错误]${Font_suffix} Caddy 没有安装，请检查 !" && exit 1
}
Download_caddy() {
  [[ ! -e ${file} ]] && mkdir "${file}"
  cd "${file}" || exit
  PID=$(ps -ef | grep "caddy" | grep -v "grep" | grep -v "init.d" | grep -v "service" | grep -v "caddy_install" | awk '{print $2}')
  [[ -n ${PID} ]] && kill -9 "${PID}"
  [[ -e "caddy*" ]] && rm -rf "caddy*"
  if [[ ${bit} == "x86_64" ]]; then
    wget --no-check-certificate -O "caddy" "https://github.com/CokeMine/Caddy_Linux/releases/latest/download/caddy_v2_linux_amd64"
  elif [[ ${bit} == "i386" || ${bit} == "i686" ]]; then
    wget --no-check-certificate -O "caddy" "https://github.com/CokeMine/Caddy_Linux/releases/latest/download/caddy_v2_linux_386"
  elif [[ ${bit} == "armv7l" ]]; then
    wget --no-check-certificate -O "caddy" "https://github.com/CokeMine/Caddy_Linux/releases/latest/download/caddy_v2_linux_armv7"
  elif [[ ${bit} == "arm64" || ${bit} == "aarch64" ]]; then
    wget --no-check-certificate -O "caddy" "https://github.com/CokeMine/Caddy_Linux/releases/latest/download/caddy_v2_linux_arm64"
  else
    echo -e "${Error_font_prefix}[错误]${Font_suffix} 不支持 [${bit}] ! 请向本站反馈[]中的名称，我会看看是否可以添加支持。" && exit 1
  fi
  [[ ! -e "caddy" ]] && echo -e "${Error_font_prefix}[错误]${Font_suffix} Caddy 下载失败 !" && exit 1
  chmod +x caddy
}
Service_caddy() {
  if [[ ${release} == "centos" ]]; then
    if ! wget --no-check-certificate https://raw.githubusercontent.com/CokeMine/ServerStatus-Hotaru/master/caddy/caddy_centos -O /etc/init.d/caddy; then
      echo -e "${Error_font_prefix}[错误]${Font_suffix} Caddy服务 管理脚本下载失败 !" && exit 1
    fi
    chmod +x /etc/init.d/caddy
    chkconfig --add caddy
    chkconfig caddy on
  else
    if ! wget --no-check-certificate https://raw.githubusercontent.com/CokeMine/ServerStatus-Hotaru/master/caddy/caddy_debian -O /etc/init.d/caddy; then
      echo -e "${Error_font_prefix}[错误]${Font_suffix} Caddy服务 管理脚本下载失败 !" && exit 1
    fi
    chmod +x /etc/init.d/caddy
    update-rc.d -f caddy defaults
  fi
}
install_caddy() {
  check_root
  if [[ -e ${caddy_file} ]]; then
    echo && echo -e "${Error_font_prefix}[信息]${Font_suffix} 检测到 Caddy 已安装，是否继续安装(覆盖更新)？[y/N]"
    read -rep "(默认: n):" yn
    [[ -z ${yn} ]] && yn="n"
    if [[ ${yn} == [Nn] ]]; then
      echo && echo "已取消..." && exit 1
    fi
  fi
  Download_caddy
  Service_caddy
  echo && echo -e " Caddy 使用命令：${caddy_conf_file}
 日志文件：cat /tmp/caddy.log
 使用说明：service caddy start | stop | restart | status
 或者使用：/etc/init.d/caddy start | stop | restart | status
 ${Info_font_prefix}[信息]${Font_suffix} Caddy 安装完成！" && echo
}
uninstall_caddy() {
  check_installed_status
  echo && echo "确定要卸载 Caddy ? [y/N]"
  read -rep "(默认: n):" unyn
  [[ -z ${unyn} ]] && unyn="n"
  if [[ ${unyn} == [Yy] ]]; then
    PID=$(ps -ef | grep "caddy" | grep -v "grep" | grep -v "init.d" | grep -v "service" | grep -v "caddy_install" | awk '{print $2}')
    [[ -n ${PID} ]] && kill -9 "${PID}"
    if [[ ${release} == "centos" ]]; then
      chkconfig --del caddy
    else
      update-rc.d -f caddy remove
    fi
    [[ -s /tmp/caddy.log ]] && rm -rf /tmp/caddy.log
    rm -rf ${caddy_file}
    rm -rf ${caddy_conf_file}
    rm -rf /etc/init.d/caddy
    [[ ! -e ${caddy_file} ]] && echo && echo -e "${Info_font_prefix}[信息]${Font_suffix} Caddy 卸载完成 !" && echo && exit 1
    echo && echo -e "${Error_font_prefix}[错误]${Font_suffix} Caddy 卸载失败 !" && echo
  else
    echo && echo "卸载已取消..." && echo
  fi
}
check_sys
action=$1
#extension=$2
[[ -z $1 ]] && action=install
case "$action" in
install | uninstall)
  ${action}_caddy
  ;;
*)
  echo "输入错误 !"
  echo "用法: {install | uninstall}"
  ;;
esac