#!/bin/bash
# Slackware build script for luppp
# Copyright 2019 Klaatu | Lawrence NZ | klaatu@member.fsf.org

# GNU All-Permissive License
# Copying and distribution of this file, with or without modification,
# are permitted in any medium without royalty provided the copyright
# notice and this notice are preserved.  This file is offered as-is,
# without any warranty.

PRGNAM=luppp
VERSION=${VERSION:-1.2.1}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

CWD=$(pwd)
TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP

rm -rf $PRGNAM-$VERSION
mkdir $PRGNAM-$VERSION
tar xvf $CWD/release-$VERSION.tar.gz -C $PRGNAM-$VERSION --strip-components 1 \
  || tar xvf $CWD/openAV-Luppp-release-$VERSION.tar.gz -C $PRGNAM-$VERSION --strip-components 1

cd $PRGNAM-$VERSION
chown -R root:root .
find -L . \
 \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
  -o -perm 511 \) -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;

mkdir -p build
cd build
  cmake \
    -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -DLIB_SUFFIX=${LIBDIRSUFFIX} \
    -DMAN_INSTALL_DIR=/usr/man \
    -DCMAKE_BUILD_TYPE=Release ..
  make
make install DESTDIR=$PKG
cd ..

find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a LICENSE README.md $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

# desktop file, added to SlackBuild for convenience
mkdir -p $PKG/usr/share/applications/
cp $CWD/$PRGNAM.desktop $PKG/usr/share/applications/

if [ -x /usr/bin/convert ]; then
    # generate icon for .desktop file
    mkdir -p $PKG/usr/share/icons/hicolor/256x256/apps/
    ICONPX=256x256
    ICONDIR=$PKG/usr/share/icons/hicolor/$ICONPX/apps/
    convert -size $ICONPX pattern:checkerboard +level-colors \#111,\#888 $ICONDIR/ch.png
    convert -size $ICONPX xc:black \
      -fill \#ff5100 -draw "roundrectangle 70,70 180,180 5,5" \
      -matte -fill none -draw 'color 0,0 replace' $ICONDIR/rec.png

    convert -size 33x33 xc:white -fill black -stroke black \
	-draw "path 'M 33,33  L 33,0  L 13,16 L 33,33 Z' " -flop $ICONDIR/tri.png
    composite -compose multiply -gravity center \
	$ICONDIR/tri.png $ICONDIR/rec.png $ICONDIR/box.png
    composite -gravity center $ICONDIR/box.png $ICONDIR/ch.png $ICONDIR/luppp.png
    rm $ICONDIR/{b,c,r,t}*.png
fi

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
cat $CWD/doinst.sh > $PKG/install/doinst.sh

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}