#!/usr/bin/env zsh
#
# Copyright (c) 2016 Dyne.org Foundation
# libdevuansdk is written and maintained by
#     Jaromil <jaromil@dyne.org>
#     KatolaZ <katolaz@freaknet.org>
#     parazyd <parazyd@dyne.org>
#
# This file is part of libdevuansdk
#
# This source code 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 software 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 source code. If not, see <http://www.gnu.org/licenses/>.

### customise 

install_default_kernel(){
	fn install_default_kernel $@
	req=(strapdir os release version arch)
    root=$strapdir
	reqck || return 1

	local kernel_base=linux-image
	local kernel=""
	
	case $arch in
		amd64)
			kernel=${kernel_base}-amd64
			;;
		i386)
			kernel=${kernel_base}-586
			;;
		*)
			error "Architecture ::1 arch:: is not supported!!!" ${arch}
			zerr; zshexit
			;;
	esac
	
	notice "Installing stock kernel for ::1 arch:: (::2 kernel::)" $arch $kernel


	mountdevprocsys ${root}

	sudo chroot ${root} apt-get --yes --force-yes --no-install-recommends install $kernel
	
	umountdevprocsys ${root}
	notice "default kernel installed"
}



make_qemu_img(){

	fn make_qemu_img $@
	local imgfile=$1
	local imgsize=${2:-4G}
	local imgformat=${3:-raw}
	req=(strapdir os release version arch imgfile imgsize)
    root=$strapdir
	reqck || return 1
	
	local blockskip=2050

	## create the qemu image 
	act "creating qemu image"
	
	qemu-img create -f ${imgformat} ${imgfile} ${imgsize}

	sudo parted ${imgfile} --script -- mklabel msdos
	sudo parted ${imgfile} --script -- mkpart primary ${blockskip}s -1s
	sudo parted ${imgfile} --script -- set 1 boot on

	## setup the loop device
	loop1=`sudo losetup -f`
	sudo losetup ${loop1} ${imgfile}
	loop2=`sudo losetup -f`
	sudo losetup -o $((${blockskip} * 512)) ${loop2} ${loop1}
	

	## now we create the fs
	act "creating filesystem"
	sudo mkfs.ext4 ${loop2}

	## and we loop-mount it 
	
	ztmpd
	mntdir=$ztmpdir
	sudo mount -o loop ${loop2} ${mntdir}
	
	echo "mntdir: $mntdir strapdir: $strapdir"
	

	# now we rsync everything 
	sudo rsync -av ${strapdir}/ $mntdir
	
	# we now install the grub bootloader
	#_install_bootloader $mntdir
	
	
	sync
	sudo umount ${mntdir}

	sudo losetup -d ${loop2}
	sudo losetup -d ${loop1}

	if [[ ! -z ${imgfile} ]]; then
		notice "QEMU image created in ::1 imgfile::" ${imgfile}
	else
		warning "Unable to create QEMU image file in ::1 imgfile::" ${imgfile}
	fi
}