#!/ventoy/busybox/sh
#************************************************************************************
# Copyright (c) 2020, longpanda <admin@ventoy.net>
# 
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 3 of the
# License, or (at your option) any later version.
# 
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with this program; if not, see <http://www.gnu.org/licenses/>.
# 
#************************************************************************************


###################################################################
#                                                                  #
# Step 1 : parse kernel debug parameter                            #
#                                                                  #
####################################################################
[ -d /proc ] || mkdir /proc; mount -t proc proc /proc
vtcmdline=$(cat /proc/cmdline)
vtkerver=$(cat /proc/version)
umount /proc; rm -rf /proc

echo "kenel version=$vtkerver" >>$VTLOG
echo "kenel cmdline=$vtcmdline" >>$VTLOG

#break here for debug
if [ "$VTOY_BREAK_LEVEL" = "01" ] || [ "$VTOY_BREAK_LEVEL" = "11" ]; then
    sleep 5
    echo -e "\n\n\033[32m ################################################# \033[0m"
    echo -e "\033[32m ################ VENTOY DEBUG ################### \033[0m"
    echo -e "\033[32m ################################################# \033[0m \n"
    
    if [ "$VTOY_BREAK_LEVEL" = "11" ]; then
        cat $VTLOG
    fi
    exec $BUSYBOX_PATH/sh
fi


####################################################################
#                                                                  #
# Step 2 : Extract injection archive                               #
#                                                                  #
####################################################################
ventoy_unpack_injection() {
    vtmagic=$(hexdump -n 2 -e '2/1 "%02X"' $VTOY_PATH/ventoy_injection)
    echo "ventoy_unpack_injection  vtmagic=$vtmagic ..."
    
    if [ "1F8B" = "$vtmagic" ] || [ "1F9E" = "$vtmagic" ]; then
        echo "tar.gz  tar -xzvf"
        tar -xzvf $VTOY_PATH/ventoy_injection -C /
    elif [ "425A" = "$vtmagic" ]; then
        echo "tar.bz2  tar -xjvf"
        tar -xjvf $VTOY_PATH/ventoy_injection -C / 
    elif [ "FD37" = "$vtmagic" ]; then
        echo "tar.xz  tar -xJvf"
        tar -xJvf $VTOY_PATH/ventoy_injection -C /
    elif [ "5D00" = "$vtmagic" ]; then
        echo "tar.lzma  tar -xavf"
        tar -xavf $VTOY_PATH/ventoy_injection -C /
    else
        echo "unzip -o"
        unzip -o $VTOY_PATH/ventoy_injection -d /
    fi
}

if [ -e $VTOY_PATH/ventoy_injection ]; then
    echo "### decompress injection ... ###" >>$VTLOG
    ventoy_unpack_injection > $VTOY_PATH/injection.log 2>&1
fi


####################################################################
#                                                                  #
# Step 3 : Hand over to ventoy_loop.sh                                  #
#                                                                  #
####################################################################
echo "Now hand over to ventoy.sh" >>$VTLOG
. $VTOY_PATH/tool/vtoytool_install.sh

export PATH=$VTOY_ORG_PATH
exec $BUSYBOX_PATH/sh $VTOY_PATH/ventoy_loop.sh