#! /bin/bash
# Copyright 2010-2017 Yann MRN
#
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 3, as published
# by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranties of
# MERCHANTABILITY, SATISFACTORY QUALITY, 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/>.

show_tab_mbr_options() {
if [[ "$GUI" ]];then
    if [[ "$1" = on ]];then
        echo 'SET@_tab_mbr_options.set_sensitive(True)'; echo 'SET@_vbox_mbr_options.show()'
    else
        echo 'SET@_tab_mbr_options.set_sensitive(False)'; echo 'SET@_vbox_mbr_options.hide()'
    fi
fi
}

###################################### Check MBR to restore ###########################
check_which_mbr_can_be_restored() {
local cwmcbr
check_available_target_partition_for_generic_mbr
NB_MBR_CAN_BE_RESTORED=0
for ((cwmcbr=1;cwmcbr<=NBOFDISKS;cwmcbr++)); do
	[[ "${LISTOFDISKS[$cwmcbr]}" = "${OS__DISK[$OS_TO_DELETE]}" ]] && [[ "${GPT_DISK[$cwmcbr]}" != is-GPT ]] \
	&& [[ "${USBDISK[$cwmcbr]}" != liveusb ]] && [[ "${MMCDISK[$cwmcbr]}" != livemmc ]] && loop_check_which_mbr_can_be_restored  #&& [[ "${EFI_DISK[$cwmcbr]}" != has---ESP ]]
done
for ((cwmcbr=1;cwmcbr<=NBOFDISKS;cwmcbr++)); do
	[[ "${LISTOFDISKS[$cwmcbr]}" != "${OS__DISK[$OS_TO_DELETE]}" ]] && [[ "${GPT_DISK[$cwmcbr]}" != is-GPT ]] \
	&& [[ "${USBDISK[$cwmcbr]}" != liveusb ]] && [[ "${MMCDISK[$cwmcbr]}" != livemmc ]] && loop_check_which_mbr_can_be_restored  #&& [[ "${EFI_DISK[$cwmcbr]}" != has---ESP ]]
done
if [[ "$NB_MBR_CAN_BE_RESTORED" = 0 ]] && [[ "$GUI" ]];then
	echo 'SET@_checkbutton_restore_mbr.hide()'
	show_tab_mbr_options off
fi
[[ "$DEBBUG" ]] && for ((cwmcbr=1;cwmcbr<=NB_MBR_CAN_BE_RESTORED;cwmcbr++)); do echo "[debug]MBR that can be restored nb $cwmcbr : ${MBR_CAN_BE_RESTORED[$cwmcbr]}"; done
}

loop_check_which_mbr_can_be_restored() {
local jj lcwmcbr kk ll
if [[ "${TARGET_PARTITION_IS_AVAILABLE[$cwmcbr]}" = yes ]] && [[ "$(ls /usr/lib/syslinux)" ]];then
	for ll in 1 2;do
		if [[ -d /usr/lib/syslinux/mbr ]];then # from 16.04
			for jj in $(ls /usr/lib/syslinux/mbr | grep mbr | grep .bin); do
				sub_loop_check_which_mbr_can_be_restored
			done
		else
			for jj in $(ls /usr/lib/syslinux | grep mbr | grep .bin); do
				sub_loop_check_which_mbr_can_be_restored
			done
		fi	
	done
fi
if [[ "${TARGET_PARTITION_IS_AVAILABLE[$cwmcbr]}" = yes ]] && [[ "$(type -p install-mbr)" ]];then
	(( NB_MBR_CAN_BE_RESTORED += 1 ))
	MBR_CAN_BE_RESTORED[$NB_MBR_CAN_BE_RESTORED]="${LISTOFDISKS[$cwmcbr]} (xp generic)"
fi
}

sub_loop_check_which_mbr_can_be_restored() {
if [[ "$ll" = 1 ]] && [[ "$(echo $jj | grep -v "[a-z]mbr" )" ]];then
	(( NB_MBR_CAN_BE_RESTORED += 1 ))
	MBR_CAN_BE_RESTORED[$NB_MBR_CAN_BE_RESTORED]="${LISTOFDISKS[$cwmcbr]} (generic ${jj%.bin})"
elif [[ "$ll" = 2 ]] && [[ "$(echo $jj | grep "[a-z]mbr" )" ]];then
	(( NB_MBR_CAN_BE_RESTORED += 1 ))
	MBR_CAN_BE_RESTORED[$NB_MBR_CAN_BE_RESTORED]="${LISTOFDISKS[$cwmcbr]} (generic ${jj%.bin})"
fi
}

###################### Combobox Restore MBR of
_combobox_restore_mbrof() {
local Ctemp="${@}"
if [[ "$Ctemp" != "$MBR_TO_RESTORE" ]];then
	MBR_TO_RESTORE="$Ctemp"
	[[ "$DEBBUG" ]] && echo "[debug]MBR_TO_RESTORE becomes: $Ctemp"
	combobox_restore_mbrof_consequences
else
	[[ "$DEBBUG" ]] && echo "[debug]Duplicate _combobox_restore_mbrof $Ctemp"
fi
}

combobox_restore_mbrof_fillin() {
local fichier
#[[ "$DEBBUG" ]] && echo "[debug]combobox_restore_mbrof_fillin"
if [[ "$GUI" ]];then
    echo "SET@_label_restore_mbrof.set_text('''${Restore_the_MBR_of}''')"
    while read fichier; do echo "COMBO@@END@@_combobox_restore_mbrof@@${fichier}";done < <( for ((icrmf=1;icrmf<=NB_MBR_CAN_BE_RESTORED;icrmf++)); do
        echo "${MBR_CAN_BE_RESTORED[$icrmf]}";
    done)
fi
}


#called by _combobox_restore_mbrof and reinstall_action
combobox_restore_mbrof_consequences() {
[[ "$GUI" ]] && echo 'SET@_button_mainapply.set_sensitive(False)' #To avoid applying before variables are changed
if [[ "$MBR_TO_RESTORE" =~ xp ]];then
	if [[ "$MBR_TO_RESTORE" = "${MBR_CAN_BE_RESTORED[1]}" ]];then		
		fill_combobox_partition_booted_bymbr
	else
		MBR_TO_RESTORE="${MBR_CAN_BE_RESTORED[1]}"; echo 'SET@_combobox_restore_mbrof.set_active(0)'
	fi
else
	fill_combobox_partition_booted_bymbr
fi
if [[ "$GUI" ]];then
    if [[ "$MBR_TO_RESTORE" =~ generic ]] || [[ "$MBR_TO_RESTORE" =~ mbr ]] || [[ "$MBR_TO_RESTORE" =~ __ ]];then # 
        echo 'SET@_vbox_partition_booted_bymbr.show()'
    else
        echo 'SET@_vbox_partition_booted_bymbr.hide()'
    fi
    echo 'SET@_button_mainapply.set_sensitive(True)'
fi
}


################### Combobox partition booted by MBR
_combobox_partition_booted_bymbr() {
local RETOURCOMBO_partition_booted_bymbr="${@}" i
for ((i=1;i<=QTY_TARGETMBRPART;i++)); do
	[[ "$RETOURCOMBO_partition_booted_bymbr" = "${TARGETMBRPARTNAME[$i]}" ]] && TARGET_PARTITION_FOR_MBR="${TARGETMBRPART[$i]}"
done
#[[ "$DEBBUG" ]] && echo "[debug]TARGET_PARTITION_FOR_MBR becomes : ${LISTOFPARTITIONS[$TARGET_PARTITION_FOR_MBR]}"
}

fill_combobox_partition_booted_bymbr() {
local TMPDISK fcpbb fichier b

[[ "$DEBBUG" ]] && echo "[debug]fill_combobox_partition_booted_bymbr"
[[ "$GUI" ]] && echo "COMBO@@CLEAR@@_combobox_partition_booted_bymbr"
DISK_TO_RESTORE_MBR="${MBR_TO_RESTORE%% (*}"

TARGET_PARTITION_FOR_MBR=none
for ((b=1;b<=NBOFDISKS;b++)); do
	[[ "${LISTOFDISKS[$b]}" = "$DISK_TO_RESTORE_MBR" ]] && TMPDISK="$b"
done
order_primary_partitions_of_tmpdisk
QTY_TARGETMBRPART="$QTY_PRIMPART"
for ((fcpbb=1;fcpbb<=QTY_PRIMPART;fcpbb++)); do
	TARGETMBRPART[$fcpbb]="${PRIMPART[$fcpbb]}"			#e.g. ${LISTOFPARTITIONS[TARGETMBRPART[a]]}= sda3
	TARGETMBRPARTNAME[$fcpbb]="${PRIMPARTNAME[$fcpbb]}"	#e.g. sda3 (XP)
done
if [[ "$GUI" ]];then
    while read fichier; do echo "COMBO@@END@@_combobox_partition_booted_bymbr@@${fichier}";done < <( for ((fcpbb=1;fcpbb<=QTY_TARGETMBRPART;fcpbb++)); do
        echo "${TARGETMBRPARTNAME[$fcpbb]}"
    done)
    echo 'SET@_combobox_partition_booted_bymbr.set_active(0)';
fi
TARGET_PARTITION_FOR_MBR="${TARGETMBRPART[1]}"
[[ "$DEBBUG" ]] && echo "[debug]TARGET_PARTITION_FOR_MBR is ${LISTOFPARTITIONS[$TARGET_PARTITION_FOR_MBR]}"
}

order_primary_partitions_of_tmpdisk() {
local loop2 opi opj ADDPART ADDTMPNAME tpdk="${LISTOFDISKS[$TMPDISK]}"
# called by fill_combobox_partition_booted_bymbr and fillin_bootflag_combobox
QTY_PRIMPART=0
for loop2 in 1 2 3 4 5 6 7 8 9 10 11 12 13 14;do
	for ((opi=NBOFPARTITIONS;opi>=1;opi--)); do #To put Recovery after Windows (exceptions: http://paste.ubuntu.com/884745)
		ADDPART=""; ADDTMPNAME=""
		if ( [[ "${LISTOFPARTITIONS[$opi]}" = "${tpdk}1" ]] || [[ "${LISTOFPARTITIONS[$opi]}" = "${tpdk}2" ]] \
		|| [[ "${LISTOFPARTITIONS[$opi]}" = "${tpdk}3" ]] || [[ "${LISTOFPARTITIONS[$opi]}" = "${tpdk}4" ]] ) \
		&& ( [[ "$loop2" = 1 ]] || [[ "$loop2" = 2 ]] || [[ "$loop2" = 3 ]] || [[ "$loop2" = 4 ]] \
		|| [[ "$loop2" = 9 ]] || [[ "$loop2" = 11 ]] || [[ "$loop2" = 13 ]] );then
			loop_order_primary_partitions_of_tmpdisk
		elif [[ "${LISTOFPARTITIONS[$opi]}" != "${tpdk}1" ]] && [[ "${LISTOFPARTITIONS[$opi]}" != "${tpdk}2" ]] \
		&& [[ "${LISTOFPARTITIONS[$opi]}" != "${tpdk}3" ]] && [[ "${LISTOFPARTITIONS[$opi]}" != "${tpdk}4" ]] \
		&& ( [[ "$loop2" = 5 ]] || [[ "$loop2" = 6 ]] || [[ "$loop2" = 7 ]] || [[ "$loop2" = 8 ]] \
		|| [[ "$loop2" = 10 ]] || [[ "$loop2" = 12 ]] || [[ "$loop2" = 14 ]] ) \
		&& [[ "${LISTOFPARTITIONS[$opi]}" =~ "$tpdk" ]];then
			loop_order_primary_partitions_of_tmpdisk
		fi
		add_part_to_primpart
	done
done
primparttmp=$QTY_PRIMPART
for ((opi=NBOFPARTITIONS;opi>=1;opi--)); do
	ADDPART=yes; ADDTMPNAME=""
	for ((opj=primparttmp;opj>=1;opj--)); do
		[[ "${PRIMPART[$opj]}" = "$opi" ]] && ADDPART=""
	done
	add_part_to_primpart
done
}

loop_order_primary_partitions_of_tmpdisk() {
#http://ubuntuforums.org/showthread.php?t=2078296
if ( [[ "$loop2" = 1 ]] || [[ "$loop2" = 5 ]] && [[ "${WINBN[$opi]}" = bcd-and-nt ]] && [[ "${RECOV[$opi]}" != recovery-or-hidden ]] ) \
|| ( [[ "$loop2" = 2 ]] || [[ "$loop2" = 6 ]] && [[ "${WINBN[$opi]}" = bcd-or-nt ]] && [[ "${RECOV[$opi]}" != recovery-or-hidden ]] && [[ "${REALWIN[$opi]}" ]] ) \
|| ( [[ "$loop2" = 3 ]] || [[ "$loop2" = 7 ]] && [[ "${WINBN[$opi]}" = bcd-or-nt ]] && [[ "${RECOV[$opi]}" != recovery-or-hidden ]] && [[ ! "${REALWIN[$opi]}" ]] ) \
|| ( [[ "$loop2" = 4 ]] || [[ "$loop2" = 8 ]] && [[ "${WINBN[$opi]}" ]] && [[ "${RECOV[$opi]}" = recovery-or-hidden ]] ) \
|| ( [[ "$loop2" = 9 ]] || [[ "$loop2" = 10 ]] && [[ ! "${WINBN[$opi]}" ]] && [[ "${PART_WITH_OS[$opi]}" = is-os ]] && [[ "${RECOV[$opi]}" != recovery-or-hidden ]] ) \
|| ( [[ "$loop2" = 11 ]] || [[ "$loop2" = 12 ]] && [[ ! "${WINBN[$opi]}" ]] && [[ "${PART_WITH_OS[$opi]}" = is-os ]] && [[ "${RECOV[$opi]}" = recovery-or-hidden ]] ) \
|| ( [[ "$loop2" = 13 ]] || [[ "$loop2" = 14 ]] && [[ ! "${WINBN[$opi]}" ]] && [[ "${PART_WITH_OS[$opi]}" != is-os ]] );then
	ADDPART=yes
fi
}

add_part_to_primpart() {
if [[ "$ADDPART" ]] && [[ "${LISTOFPARTITIONS[$opi]}" != "$OS_TO_DELETE_PARTITION" ]];then
	(( QTY_PRIMPART += 1 ))
	[[ "${PART_WITH_OS[$opi]}" = is-os ]] && ADDTMPNAME=" (${OSNAME[$opi]})"
	PRIMPART[$QTY_PRIMPART]="$opi"	#eg ${LISTOFPARTITIONS[PRIMPART[a]]}= sda3
	PRIMPARTNAME[$QTY_PRIMPART]="${LISTOFPARTITIONS[$opi]}$ADDTMPNAME"	#eg sda3 (XP)
fi
}


check_available_target_partition_for_generic_mbr() {
local cam cat
for ((cam=1;cam<=NBOFDISKS;cam++)); do
	TARGET_PARTITION_IS_AVAILABLE[$cam]=no
	for ((cat=1;cat<=NBOFPARTITIONS;cat++)); do
		[[ "$cam" = "${DISKNB_PART[$cat]}" ]] && [[ "$cat" != "$OS_TO_DELETE_PARTITION" ]] \
		&& TARGET_PARTITION_IS_AVAILABLE[$cam]=yes
	done
	[[ "$DEBBUG" ]] && echo "[debug]TARGET_PARTITION_IS_AVAILABLE[${LISTOFDISKS[$cam]}] is : ${TARGET_PARTITION_IS_AVAILABLE[$cam]}"
done
}