#!/bin/bash

### post-install chroot customization script ###

set -e -u
source /root/customize_root_image-constants.inc


# configure timezone and locales
ln -sf /usr/share/zoneinfo/UTC /etc/localtime
for locale in ${LOCALES} ; do sed -i "s/#${locale}/${locale}/" /etc/locale.gen ; done ;
locale-gen

# configure sudo
chmod 750 /etc/sudoers.d
chmod 440 /etc/sudoers.d/g_wheel

# configure pacman
sed -i "s|#Server|Server|" /etc/pacman.d/mirrorlist
[ "${INSTALL_TYPE}" == 'Complete' ] && pacman_conf=pacman-offline.conf || pacman_conf=pacman-online.conf
cp /etc/${pacman_conf} /etc/pacman.conf

# configure services
if   [[ "${iso_init}" == 'systemd' ]]
then # delete files that are specific to other init systems
     rm ${SYSTEMD_DELETE_FILES}

     # enable services
     systemctl enable ${SYSTEMD_SERVICES}
elif [[ "${iso_init}" == 'openrc' ]]
then # delete files that are specific to other init systems
     rm ${OPENRC_DELETE_FILES}

     # enable services
     for service in ${OPENRC_SERVICES} ; do rc-update add ${service} default ; done ;

     # create the dbus user and group if it does not exist
     if [[ "$(grep 'dbus' /etc/group )" = "" ]] ; then groupadd -g 81 dbus ; fi ;
     if [[ "$(grep 'dbus' /etc/passwd)" = "" ]] ; then useradd -r -s /sbin/nologin -g 81 -u 81 dbus ; fi ;
else echo "invalid \$iso_init for services '${iso_init}'"
     exit 1
fi

# configure root user, system defaults, and login session
usermod -s ${DEFAULT_SHELL} root 2> /dev/null
sed -i "s|_EDITION_TITLE_|${iso_title}|"                                        /etc/motd
sed -i "s|_NETWORK_MOTD_MSG_|${NETWORK_MOTD_MSG}| ; s|^>>>>\(.*\)|    \1|g"     /etc/motd
sed -i "s|PRETTY_NAME=.*|PRETTY_NAME=\"${PRETTY_NAME}\"|"                       /usr/lib/os-release
echo "VERSION=\"$(   echo ${iso_title}   | cut -d ' ' -f  6             )\"" >> /usr/lib/os-release
echo "VERSION_ID=\"$(echo ${iso_title}   | cut -d ' ' -f  6             )\"" >> /usr/lib/os-release
echo "VARIANT=\"$(   echo ${PRETTY_NAME} | cut -d ' ' -f -3 --complement)\"" >> /usr/lib/os-release
echo "VARIANT_ID=\"${iso_init}-${iso_gui}\""                                 >> /usr/lib/os-release

# configure CLI login session
if   [[ "${iso_gui}" == 'cli' ]]
then cp ${ROOT_SKEL_FILES} /root/
     sed -i "s|_DESKTOP_SESSION_||" /root/.bash_profile

else # configure GUI login session and live user
     [[ -n "$(id ${LIVE_USER} 2> /dev/null)" ]] && userdel -r ${LIVE_USER} 2> /dev/null
     useradd -m -p "" -g users -G "${USER_GROUPS}" -s ${DEFAULT_SHELL} ${LIVE_USER}
     if   [[ "${iso_init}" == 'systemd' ]]
     then sed -i "s|--autologin root|--autologin ${LIVE_USER}|" /etc/systemd/system/getty@tty1.service.d/autologin.conf
     elif [[ "${iso_init}" == 'openrc' ]]
     then sed -i "s|--autologin root|--autologin ${LIVE_USER}|" /etc/conf.d/agetty.tty1
     else echo "invalid \$iso_init for --autologin '${iso_init}'"
     fi

     # configure desktop environment
     sed -i "s|/news-*|/news-* ~/welcome.txt|"  /home/${LIVE_USER}/.config/autostart/autostart.sh
     sed -i "s|_EDITION_TITLE_|${PRETTY_NAME}|" /home/${LIVE_USER}/.config/autostart/autostart.sh
     sed -i "s|,Don't show this again:0||"      /home/${LIVE_USER}/.config/autostart/autostart.sh
     sed -i "s|620x460|620x520|"                /home/${LIVE_USER}/.config/autostart/autostart.sh
     sed -i "s|/issue-tracker/|/isos/|"         /home/${LIVE_USER}/Desktop/bug-tracker.desktop
     if   [[ "${iso_gui}" == 'lxde' ]]
     then rm -f /etc/xdg/autostart/octopi-notifier.desktop 2> /dev/null
          touch /home/${LIVE_USER}/Desktop/parabola-installer.desktop ; sleep 2 ; # sort
          touch /home/${LIVE_USER}/Desktop/parabola-irc.desktop       ; sleep 2 ; # sort
          touch /home/${LIVE_USER}/Desktop/bug-tracker.desktop                    # sort
          sed -i "s|_DESKTOP_SESSION_|LXDE|"    /home/${LIVE_USER}/.bash_profile
          sed -i "s|_DESKTOP_SESSION_|LXDE|"    /home/${LIVE_USER}/.dmrc
     elif [[ "${iso_gui}" == 'mate' ]]
     then sed -i "s|_DESKTOP_SESSION_|mate|"    /home/${LIVE_USER}/.bash_profile
          sed -i "s|_DESKTOP_SESSION_|mate|"    /home/${LIVE_USER}/.dmrc
     else echo "invalid \$iso_gui for _DESKTOP_SESSION_ '${iso_gui}'"
          exit 1
     fi
fi