#!/bin/bash

SCRIPT_VER="2.0"

APP="X2Go Server"
APP_CATEGORY="Remote Access"
APP_SCOPE="system"
APP_ENABLED="yes"
SYS_PKG_NAME="x2goserver"
STORED_PASSWORD_SERVICE="user"
SUPPORTED_ON="Ubuntu20.04,Ubuntu22.04,Ubuntu24.04"
LIBRARY="functions4.sh"

if [ "${SUPPORT-}" = '' ]; then
    SUPPORT="https://installers.rapidseedbox.com/scripts/whmcs_client_installers/support"
fi

LOGFILE="/var/log/whmcs_client_installers/${0}.log"
[ ! -d "/var/log/whmcs_client_installers" ] && mkdir -p "/var/log/whmcs_client_installers"

wget -4 -nc -q --no-check-certificate --timeout=20 --tries=5 ${SUPPORT}/${LIBRARY} >> "${LOGFILE}" 2>&1
if [ ! -f "./${LIBRARY}" ] ; then
    echo "55"
    echo "Error downloading \"${SUPPORT}/${LIBRARY}\"" >> "${LOGFILE}"
    exit 55
fi

# shellcheck source=support/functions4.sh
. "./${LIBRARY}"
SCRIPTENTRY

X2GO_PACKAGES=("x2goserver" "x2goserver-xsession" "x2goserver-x2goagent")
if [ "${LSB_VER}" = "Ubuntu24.04" ] ; then
    X2GO_PACKAGES+=("x2goserver-x2gokdrive")
fi

while : ; do

    main_rc=1

    CHECK_APP ; _rc=$?
    if [ ${_rc} -ne 0 ] ; then
        main_rc=${_rc}
        break
    fi

    case "${LSB_VENDOR}" in
      "Ubuntu")
          case "${LSB_VER}" in
            "Ubuntu20.04"|"Ubuntu22.04")
                ;;
            *)
                DEL_APT_REPO "ppa:x2go/ppa"
                ADD_APT_REPO "ppa:x2go/stable" || break
                ;;
          esac
          ;;
    esac

    if [ ! -d "${USERHOME}/.config/autostart" ] ; then
        MKDIR "${USERHOME}/.config/autostart" || break
        CHOWN_DIR "${USERNAME}":"${USERNAME}" "${USERHOME}/.config/autostart" || break
    fi
    if [ ! -d "${USERHOME}/bin" ] ; then
        MKDIR "${USERHOME}/bin" || break
        CHOWN_DIR "${USERNAME}":"${USERNAME}" "${USERHOME}/bin" || break
    fi

    [ -d "/etc/apt/sources.list.d" ] \
        && RUN_LOG "touch /etc/apt/sources.list.d/.x2go.unhold 2>&1"

    ${PKG_UPDATE} || break
    ${PKG_INSTALL} "${X2GO_PACKAGES[@]}" || break


    INFO "Configuring '${APP}' environment"
    if [ "${SVC_SYSTEM}" = "systemd" ] ; then
        # Configure service
        cat <<-EOF > "/etc/systemd/system/x2goserver.service" 2>> "${LOGFILE}"
	[Unit]
	Description=x2goserver

	[Service]
	ExecStart=/usr/sbin/x2gocleansessions
	ExecStop=/usr/bin/killall x2gocleansessions
	Type=forking
	TimeoutSec=200
	KillMode=process
	Restart=always

	[Install]
	WantedBy=multi-user.target
	EOF
        SYSTEMD_RELOAD

        # Fix 'x2gocleansessions' application
        if [ -e "/usr/sbin/x2gocleansessions" ] ; then
            if ! grep -q 'while(sleep 60)' "/usr/sbin/x2gocleansessions" ; then
                INFO "X2Go: fix: /usr/sbin/x2gocleansessions"
                RUN_LOG "sed -i -e 's/while(sleep .*)/while(sleep 60)/' '/usr/sbin/x2gocleansessions'"
            fi
        fi

        # enable/start service
        SVC_ENABLE "x2goserver"
        SVC_START  "x2goserver"
    fi


    #
    # -- monit configs
    if [ -d "/etc/monit/conf.d" ] ; then
         cat <<-EOF > "/etc/monit/conf.d/x2goserver" 2>> "${LOGFILE}"
		check process x2goserver
		  matching "x2gocleansessions"
		  start program = "/usr/sbin/service x2goserver restart"
		  stop  program = "/usr/sbin/service x2goserver stop"
		EOF
        MONIT_RELOAD
    fi


    main_rc=0
    break

done


# Cleanup if error
if [ "${main_rc}" -ne 0 ] && [ "${main_rc}" -ne 111 ] ; then
    ERROR "'${APP}': Installation failed."
    # Cleanup tasks here
    case "${LSB_VENDOR}" in
      "Debian"|"Devuan")
          RM_FILES "/etc/apt/sources.list.d/x2go.list"
          ;;
      "Ubuntu")
          DEL_APT_REPO "ppa:x2go/stable"
          ;;
    esac
    ${PKG_REMOVE} "${X2GO_PACKAGES[@]}"
    ${PKG_UPDATE}
fi



SCRIPTEXIT