#!/usr/bin/env bash
#
# Author: Dmitry Razumov <asmeron@ublinux.com>
# Copyright (c) 2021-2025 UBLinux <support@ublinux.com>
#

ENABLED=yes
[[ ${ENABLED} == "yes" ]] || exit 0
#grep -q 1 /run/ublinux_started || exit 0

#. /usr/lib/ublinux/functions
#. /usr/lib/ublinux/default

#SOURCE=${SYSCONF}/config; [[ -f ${SOURCE} ]] && . ${SOURCE} 2>/dev/null

    EXT="ubm"
    PATH_BASE=$(find /memory/layer-base/*/ -maxdepth 1 -type d -name "base")
    PATH_MODULES=$(find /memory/layer-base/*/ -maxdepth 1 -type d -name "modules")
    PATH_UPGRADE=$(find /memory/layer-base/*/ -maxdepth 1 -type d -name "upgrade")
    F_UPGRADE_CONF=$(find ${PATH_UPGRADE} -maxdepth 1 -type f -name "upgrade.conf")
    PATH_KERNEL=$(find /memory/layer-base/*/ -maxdepth 1 -type f -name "vmlinuz*" | head -1 | xargs dirname)

    # Удаляем модули, отмеченные на устаревшие
    [[ -f ${F_UPGRADE_CONF} ]] && for F_REMOVE in $(cat ${F_UPGRADE_CONF} | uniq | grep "remove=" | sed "s/remove=//"); do
	[[ -f ${F_REMOVE} ]] && rm -vf ${F_REMOVE} 2>/dev/null
    done

    # Переименовываем модули, отмеченные на обновляемые
    [[ -n ${PATH_BASE} || -n ${PATH_MODULES} ]] && for F_RENAME_UPGRADE in $(find ${PATH_BASE} ${PATH_MODULES} -type f -name "*.upgrade"); do
	[[ -f ${F_RENAME_UPGRADE} ]] && mv -vf ${F_RENAME_UPGRADE} ${F_RENAME_UPGRADE/.${EXT}.upgrade/.${EXT}} 2>/dev/null
    done

    # Перемещаем модули, отмеченные на обновляемые
    [[ -f ${F_UPGRADE_CONF} ]] && for F_UPGRADE in $(cat ${F_UPGRADE_CONF} | uniq | grep "upgrade=" | sed "s/install=//"); do
	[[ -n ${PATH_UPGRADE} ]] && for PATH_UPGRADE_ITEM in ${PATH_UPGRADE}; do
	    [[ -f ${PATH_UPGRADE_ITEM}/${F_UPGRADE##*/} ]] && mv -vf ${PATH_UPGRADE_ITEM}/${F_UPGRADE##*/} ${F_UPGRADE%/*} 2>/dev/null
	done
    done

    # Перемещаем модули, отмеченные на новые на установку
    [[ -f ${F_UPGRADE_CONF} ]] && for F_INSTALL in $(cat ${F_UPGRADE_CONF} | uniq | grep "install=" | sed "s/install=//"); do
	[[ -n ${PATH_UPGRADE} ]] && for PATH_UPGRADE_ITEM in ${PATH_UPGRADE}; do
	    [[ -f ${PATH_UPGRADE_ITEM}/${F_INSTALL##*/} ]] && mv -vf ${PATH_UPGRADE_ITEM}/${F_INSTALL##*/} ${F_INSTALL%/*} 2>/dev/null
	done
    done

    # Переименовываем модули, отмеченные на обновление, но отсутствующие в upgrade.conf
    [[ -n ${PATH_UPGRADE} ]] && for F_NOMARK_UPGRADE in $(find ${PATH_UPGRADE} -type f -name "*.${EXT}*"); do
	NAME_NOMARK_UPGRADE=${F_NOMARK_UPGRADE##*/}
	if [[ ${NAME_NOMARK_UPGRADE} =~ ^[0-9]{3}-.* ]]; then
	    [[ -f ${F_NOMARK_UPGRADE} ]] && mv -vf ${F_NOMARK_UPGRADE} $(tail -1 <<< ${PATH_BASE})/${NAME_NOMARK_UPGRADE/.upgrade/} 2>/dev/null
	else
	    [[ -f ${F_NOMARK_UPGRADE} ]] && mv -vf ${F_NOMARK_UPGRADE} $(tail -1 <<< ${PATH_MODULES})/${NAME_NOMARK_UPGRADE/.upgrade/} 2>/dev/null
	fi
    done

    # Удаляем модули с одинаковыми именами старых версий
    [[ -n ${PATH_BASE} || -n ${PATH_MODULES} ]] && find ${PATH_BASE} ${PATH_MODULES} -maxdepth 1 -name "*.${EXT}" 2>/dev/null | sed -En "s/(.*\/)((.*)-([^-]+)-([^-]+)-[^-]+\.${EXT})/\1|\3|\2/p" | sort --field-separator="|" --key=3rbV | awk -F '|' 'prefixes[$2]++ {print $1$3}' | xargs -I {} rm -vf {} 2>/dev/null
    # TODO: Вырезать из файла чек сумм имена удаляемых модулей

    # Обновление найденных модулей ядра
    [[ -n ${PATH_UPGRADE} && -d ${PATH_KERNEL} ]] && find ${PATH_UPGRADE} -type f -regextype sed -regex ".*/vmlinuz-[0-9.]\{5,8\}-[0-9]\{1,4\}" -exec mv -vft "${PATH_KERNEL}" {} +
    [[ -n ${PATH_UPGRADE} && -d ${PATH_KERNEL} ]] && find ${PATH_UPGRADE} -type f -regextype sed -regex ".*/ublinux-[0-9.]\{5,8\}-[0-9]\{1,4\}" -exec mv -vft "${PATH_KERNEL}" {} +

    [[ -f ${F_UPGRADE_CONF} ]] && rm -vf "${F_UPGRADE_CONF}"