#!/bin/bash

# variables
CWD=$(pwd)

BUILD=${BUILD:-1}

TAG=gwh
TMP=${TMP:-/tmp/$TAG}
OUTPUT=${OUTPUT:-/tmp}

PRGNAM=${PRGNAM:-$(basename $CWD)}
PKG=${PKG:-$TMP/pkg-$PRGNAM}

ARCH=${ARCH:-noarch}

PREFIX=${PREFIX:-/usr}

REPOSITORY=${REPOSITORY:=/home/installs/SlackBuilds/_repositories/$PRGNAM}

# nettoyage préalable
for d in $PKG $TMP/$PRGNAM; do
    [ -d $d ] && rm -fr $d
done

# mise en place
[ ! -e $REPOSITORY ] && git clone https://github.com/mrfixit2001/updates_repo.git $REPOSITORY
( cd $REPOSITORY; git pull )
VERSION="git_r$( cd $REPOSITORY/pinebook/ && cat version )"

cp -R $REPOSITORY $TMP/$PRGNAM
cd $TMP/$PRGNAM/
git checkout v$VERSION

mkdir -p $PKG/boot/
cp $TMP/$PRGNAM/pinebook/filesystem/{idbloader,uboot,trust}.img $PKG/boot/
cat <<EOF > $PKG/boot/install-boot-imgs.sh
#!/bin/bash
set -e

grep -q "pinebook-pro" /proc/device-tree/compatible || exit 1

echo "Updating U-Boot..."
SYSPART=\$(findmnt -n -o SOURCE /)
if echo \$SYSPART | grep -qE 'p[0-9]$' ; then
    DEVID=\$(echo \$SYSPART | sed -e s+'p[0-9]\$'+''+)
else
    DEVID=\$(echo \$SYSPART | sed -e s+'[0-9]\$'++)
fi
echo Identified \$DEVID as device to flash uboot to...
if [ -f /boot/idbloader.img ] ; then
    echo "Upgrading idbloader.img..."
    dd if=/boot/idbloader.img of=\$DEVID bs=32k seek=1 conv=fsync &>/dev/null
fi
if [ -f /boot/uboot.img ] ; then
    echo "Upgrading uboot.img..."
    dd if=/boot/uboot.img of=\$DEVID bs=64k seek=128 conv=fsync &>/dev/null
fi
if [ -f /boot/trust.img ] ; then
    echo "Upgrading trust.img..."
    dd if=/boot/trust.img of=\$DEVID bs=64k seek=192 conv=fsync &>/dev/null
fi
EOF

chmod +x $PKG/boot/install-boot-imgs.sh

# correction
cd $PKG
chown -R root:root *

# embaumement
mkdir -p $PKG/install
cat <<EOF > $PKG/install/slack-desc
# HOW TO EDIT THIS FILE:
# The "handy ruler" below makes it easier to edit a package description.  Line
# up the first '|' above the ':' following the base package name, and the '|'
# on the right side marks the last column you can put a character in.  You must
# make exactly 11 lines for the formatting to be correct.  It's also
# customary to leave one space after the ':'.

        |-----handy-ruler------------------------------------------------------|
$PRGNAM: $PRGNAM (Pinebook Pro's boot bits)
$PRGNAM:
$PRGNAM: run /boot/install-boot-imgs.sh
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM: https://github.com/mrfixit2001/updates_repo
$PRGNAM:
EOF

# empaquetage
/sbin/makepkg --linkadd y --chown n --prepend $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.txz