#!/bin/bash

# variables
VERSION=${VERSION:-latest}
BUILD=${BUILD:-1}

TAG=gwh
TMP=/tmp/$TAG
CWD=$(pwd)

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

ARCH=${ARCH:-$(uname -m)}

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

# nettoyage préalable
rm -fr $PKG $TMP/$PRGNAM

mkdir -p $PKG

# mise en place
cd $TMP
[ ! -e $REPOSITORY ] && git clone https://gitlab.com/chinstrap/gammastep.git $REPOSITORY
cd $REPOSITORY
git pull --all

cp -R $REPOSITORY $TMP/
cd $TMP/$PRGNAM
[ "x$VERSION" == "xlatest" ] && VERSION=$(git tag --sort=-version:refname | head -n1)
[ "x$VERSION" == "x" ] && VERSION=trunk
[ "x$VERSION" == "xtrunk" ] && VERSION="git_r$(git rev-list --count HEAD)_$(git log -1 --format=%h)" || git checkout $VERSION

./bootstrap
./configure \
 --prefix=$PREFIX \
 --libdir=$PREFIX/lib$(uname -m | grep -o 64) \
 --mandir=$PREFIX/man \
 --enable-wayland \
 --enable-gui

make
make install DESTDIR=$PKG

# move doc/ to the appropriate location
mkdir -p $PKG$PREFIX/doc/$PRGNAM
cp *.md $PKG$PREFIX/doc/$PRGNAM

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

[ -d $PKG$PREFIX/man ] && find $PKG$PREFIX/man -type f -not -name \*.gz -exec gzip -9 {} \;

# 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 (screen color adjuster)
$PRGNAM:
$PRGNAM: Adjust the color temperature of your screen according to
$PRGNAM: your surroundings. This may help your eyes hurt less if you are
$PRGNAM: working in front of the screen at night.
$PRGNAM: Run gammastep -h for help on command line options.
$PRGNAM: A graphical indicator is provided, gammastep-indicator.
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM: https://gitlab.com/chinstrap/gammastep
EOF

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