#!/bin/bash

CWD=$(pwd)

PRGNAM=$(basename $CWD)
VERSION=${VERSION:-9.0-r2}
BUILD=1
TAG=gwh
ARCH=$(uname -m)

OUTPUT=/tmp
TMP=/tmp/$TAG
PKG=$TMP/pkg-$PRGNAM

PREFIX=/usr

REPOSITORY=${REPOSITORY:-/var/cache/SlackBuilds.gwh/$PRGNAM}

mkdir -p $REPOSITORY

mkdir -p $TMP

# Cleaning
rm -fr $PRGNAM $PKG

# Fetching binaries
[ ! -e $REPOSITORY/${PRGNAM}-${VERSION}.${ARCH}.rpm ] && wget -c https://osdn.net/dl/android-x86/android-x86-${VERSION}.x86_64.rpm -O $REPOSITORY/${PRGNAM}-${VERSION}.${ARCH}.rpm

# Installation
mkdir -p $PKG$PREFIX/share/
cd $PKG$PREFIX/share/
rpm2targz $REPOSITORY/${PRGNAM}-${VERSION}.${ARCH}.rpm
tar xvf ${PRGNAM}-${VERSION}.${ARCH}.tar.gz
rm ${PRGNAM}-${VERSION}.${ARCH}.tar.gz

rm -fr usr
mv android-${VERSION} ${PRGNAM}

mkdir -p $PKG$PREFIX/bin/
cp $CWD/${PRGNAM}.sh $PKG$PREFIX/bin/
chmod 755 $PKG$PREFIX/bin/${PRGNAM}.sh

mkdir -p $PKG$PREFIX/share/${PRGNAM}
cat <<EOF > $PKG$PREFIX/share/${PRGNAM}/create-data-img.sh
#!/bin/bash

SIZE=\${SIZE:-128G}

mkdir -p \$HOME/.android-x86
qemu-img create -f qcow2 \$HOME/.android-x86/data.img \$SIZE
EOF

cat <<EOF > $PKG$PREFIX/share/${PRGNAM}/create-data-dir.sh
#!/bin/bash

mkdir -p \$HOME/.android-x86/data
EOF

cat <<EOF > $PKG$PREFIX/share/${PRGNAM}/mount-data-img.sh
#!/bin/bash

sudo modprobe nbd max_part=63
sudo qemu-nbd -c /dev/nbd0 \$HOME/.android-x86/data.img
sudo mkdir -p /media/android-x86-data
sudo mount /dev/nbd0 /media/android-x86-data
EOF

cat <<EOF > $PKG$PREFIX/share/${PRGNAM}/umount-data-img.sh
#!/bin/bash

sudo umount /media/android-x86-data
EOF

chmod 755 $PKG$PREFIX/share/${PRGNAM}/*.sh

# Cleaning
cd $PKG
chown -R root:root .
find . \
     \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
     -exec chmod 755 {} \; -o \
     \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
     -exec chmod 644 {} \;

# Packaging
mkdir install
cat <<EOF > install/slack-desc
$PRGNAM: $PRGNAM (Run Android in QEMU)
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM: Host:
$PRGNAM: qemu-img create -f qcow2 $HOME/.android-x86/data.img 128G
$PRGNAM: Guest:
$PRGNAM: # mke2fs -t ext4 -j -L DATA /dev/block/vdc
$PRGNAM:
$PRGNAM: http://www.android-x86.org/
$PRGNAM:
EOF

rm -f $PKG/{,usr/}lib$(uname -m | grep -o 64)/*.la
/sbin/makepkg --linkadd y --chown n --prepend $OUTPUT/$PRGNAM-$(echo $VERSION | tr -d '-')-$ARCH-$BUILD$TAG.txz