#!/usr/bin/env bash

ENABLED=yes
[[ ${ENABLED} == yes ]] || exit 0
DEBUGMODE=no

SOURCE=/usr/lib/ublinux/functions; [[ -f ${SOURCE} ]] && . ${SOURCE} 2>/dev/null  || exit 0
SOURCE=/usr/lib/ublinux/default; [[ -f ${SOURCE} ]] && . ${SOURCE} 2>/dev/null  || exit 0
SOURCE=${SYSCONF}/config; [[ -f ${SOURCE} ]] && . ${SOURCE} 2>/dev/null
SOURCE=${SYSCONF}/desktop; [[ -f ${SOURCE} ]] && . ${SOURCE} 2>/dev/null

debug_mode "$0" "$@"

    systemctl --quiet --wait is-system-running
    if [[ -n ${X11VNC[@]} ]]; then
	OPTION_GLOBAL="-many -shared -no6"
#	OPTION_GLOBAL="-many -shared -no6 -forever -dontdisconnect -noxdamage -xkb -rfbport 590%i "
	if [[ -n ${X11VNC[password]} ]]; then
    	    [[ -d /root/.vnc ]] || mkdir -p /root/.vnc
    	    /usr/bin/x11vnc -quiet -storepasswd "$(base64 -d <<< "${X11VNC[password]}")" /root/.vnc/.passwd &>/dev/null
    	    chmod 600 /root/.vnc/.passwd
    	    ## Show obscured password
    	    #/usr/bin/x11vnc -showrfbauth /root/.vnc/passwd
    	fi
    	[[ -f /root/.vnc/.passwd ]] && OPTION_RFBAUTH_PASSWD="-rfbauth /root/.vnc/.passwd"
	if systemctl --quiet is-enabled lightdm.service &>/dev/null || systemctl --quiet is-enabled lightdm-plymouth.service &>/dev/null; then
	    for ID_DISPLAY in /var/run/lightdm/root/:*; do
		FILE_X11VNC_SERVICE="/usr/lib/systemd/system/x11vnc-ublinux:${ID_DISPLAY##*:}.service"
		OPTION_DISPLAY="-display WAIT:${ID_DISPLAY##*:} -auth /var/run/lightdm/root/:${ID_DISPLAY##*:}"
		OPTION_LOG="-o /var/log/x11vnc-ublinux:${ID_DISPLAY##*:}.log"
		OPTION_PORT="-autoport 590${ID_DISPLAY##*:}"
    		mkdir -p "${FILE_X11VNC_SERVICE%/*}"
		cat << EOF > "${FILE_X11VNC_SERVICE}"
[Unit]
Description=VNC Server for X11:${ID_DISPLAY##*:}
Requires=graphical.target
After=graphical.target

[Service]
#ExecStartPre=/bin/sh -c 'while ! pgrep -U "root" Xorg; do sleep 2; done'
ExecStart=
ExecStart=/usr/bin/x11vnc ${OPTION_GLOBAL} ${OPTION_PORT} ${OPTION_DISPLAY} ${OPTION_RFBAUTH_PASSWD} ${OPTION_LOG} ${X11VNC[options]}
Restart=always
RestartSec=5
SuccessExitStatus=2

[Install]
WantedBy=graphical.target
EOF
		systemctl --quiet is-enabled ${FILE_X11VNC_SERVICE##*/} &>/dev/null && systemctl daemon-reload &>/dev/null
		[[ -f ${FILE_X11VNC_SERVICE} ]] && systemctl --quiet  enable ${FILE_X11VNC_SERVICE##*/} &>/dev/null && systemctl --quiet  restart ${FILE_X11VNC_SERVICE##*/} &>/dev/null
	    done
	elif systemctl --quiet is-enabled gdm.service &>/dev/null || systemctl --quiet is-enabled gdm-plymouth.service &>/dev/null; then
	    true
	elif systemctl --quiet is-enabled lxdm.service &>/dev/null || systemctl --quiet is-enabled lxdm-plymouth.service &>/dev/null; then
	    true
	elif systemctl --quiet is-enabled sddm.service &>/dev/null || systemctl --quiet is-enabled sddm-plymouth.service &>/dev/null; then
	    true
	elif systemctl --quiet is-enabled slim.service &>/dev/null || systemctl --quiet is-enabled slim-plymouth.service &>/dev/null; then
	    true
	fi
	## Создаём сервисы пользовательские
	for X11VNC_NEW in "${!X11VNC[@]}"; do
	    if  [[ ${X11VNC_NEW} =~ ^new[0-9]{1,2}$ || ${X11VNC_NEW} =~ ^tty[0-9]{1,2}$ ]]; then
		## Настройка VNC для TTY
		if [[ ${X11VNC_NEW} =~ ^tty[0-9]{1,2}$ ]]; then
		    NUM_TTY=$(sed "s/tty//" <<< ${X11VNC_NEW})
		    X11VNC[${X11VNC_NEW}]="${OPTION_GLOBAL} -rfbauth /root/.vnc/.passwd -rawfb vt${NUM_TTY} ${X11VNC[${X11VNC_NEW}]}"
		fi
		FILE_X11VNC_SERVICE="/usr/lib/systemd/system/x11vnc-ublinux-${X11VNC_NEW}.service"
		OPTION_LOG="-o /var/log/x11vnc-ublinux-${X11VNC_NEW}.log"
		OPTION_PORT="-autoport 5900"
		if NUM_TTY=$(egrep --only-matching -- "-rawfb vt[0-9]{1,2}" <<< ${X11VNC[${X11VNC_NEW}]} | head -1 | sed "s/-rawfb vt//") && [[ -n ${NUM_TTY} ]]; then
		    systemctl start getty@tty${NUM_TTY}.service
		fi
		if grep --quiet -- "-display" <<< ${X11VNC[${X11VNC_NEW}]}; then
		    SERVICE_UNIT="[Unit]
Description=VNC Server ${X11VNC_NEW}
Requires=graphical.target
After=graphical.target"
		    SERVICE_INSTALL="[Install]
WantedBy=graphical.target"
		else
		    SERVICE_UNIT="[Unit]
Description=VNC Server - ${X11VNC_NEW}"
		    SERVICE_INSTALL="[Install]
WantedBy=multi-user.target"
		fi
    		mkdir -p "${FILE_X11VNC_SERVICE%/*}"
		cat << EOF > "${FILE_X11VNC_SERVICE}"
${SERVICE_UNIT}

[Service]
ExecStart=
ExecStart=/usr/bin/x11vnc ${OPTION_PORT} ${OPTION_LOG} ${X11VNC[${X11VNC_NEW}]}
Restart=always
RestartSec=5
SuccessExitStatus=2

${SERVICE_INSTALL}
EOF
		systemctl --quiet is-enabled ${FILE_X11VNC_SERVICE##*/} &>/dev/null && systemctl daemon-reload &>/dev/null
		[[ -f ${FILE_X11VNC_SERVICE} ]] && systemctl --quiet enable ${FILE_X11VNC_SERVICE##*/} &>/dev/null && systemctl --quiet  restart ${FILE_X11VNC_SERVICE##*/} &>/dev/null
	    fi
	done
    else 
    ## Если в режиме полного сохранения настройку убрали, то отключаем
	for FILE_X11VNC_SERVICE in /usr/lib/systemd/system/x11vnc-ublinux*.service; do
	    if [[ -e ${FILE_X11VNC_SERVICE} ]]; then
		systemctl --quiet disable --now ${FILE_X11VNC_SERVICE##*/} &>/dev/null
		rm -f ${FILE_X11VNC_SERVICE}
	    fi
	done
    fi