#!/bin/bash

# Slackware build script for saga-gis

# Copyright 2023-2026 Giancarlo Dessi, Cagliari, IT
# Copyright 2014-2021 Benjamin Trigona-Harany <slackbuilds@jaxartes.net>
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

cd $(dirname $0) ; CWD=$(pwd)

PRGNAM=saga-gis
VERSION=${VERSION:-9.13.1}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

SRCNAM=saga

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

if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

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 [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
elif [ "$ARCH" = "aarch64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi
SLKCFLAGS+=" -DNDEBUG"

set -e

# unixODBC is needed in 32 bit systems instead of libiodbc released
# with Slackware 15.0. The slackbuild stops if unixODBC is not installed
if [[ "$ARCH" = "i586" || "$ARCH" = "i686" ]] ; then
  if ! [ -f /usr/lib/libodbc.so ] ; then
    echo "";
    echo "";
    echo "";
    echo "******************** WARNING *********************";
    echo " This script cannot be executed in 32 bit systems ";
    echo " with iODBC as default ODBC library installed.    ";
    echo " The current process will be stopped.             ";
    echo " Please install the unixODBC package from the     ";
    echo " slackbuild available in the SBo repository.      ";
    echo "**************************************************";
    exit 1;
  fi
fi

# if both unixODBCand and libiodbc are installed, SAGA set the
# first as default driver ODBC. This flag should prevent possible 
# compilation failures since cmake does not find the correct
# path of unixODBC headers
ODBC=""
if pkg-config --exists odbc; then
  ODBC="-DODBC_INCLUDE_DIR=/usr/include/unixodbc "
fi

# Look if the system has PDAL installed
if pkg-config --exists pdal; then
  WITHPDAL=""
else
  WITHPDAL="-DWITH_TOOLS_PDAL=OFF "
fi

OPENCV=$(opencv_version)

# Prevent cmake warnings in current
if [ $OPENCV = "4.5.5" ]; then
   OPENCV=""
else
   OPENCV="-DWITH_TOOLS_OPENCV=OFF"
fi

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $SRCNAM-$VERSION
tar xvf $CWD/$SRCNAM-$VERSION.tar.gz
cd $SRCNAM-$VERSION/saga-gis
find . ! -type l    -a \( \
  \(     -perm /111 -a ! -perm 755 -a -exec chmod -f 755 {} + \) -o \
  \(   ! -perm /111 -a ! -perm 644 -a -exec chmod -f 644 {} + \) \)

# Disable WITH_EXIV in stable due outdated version of exiv2
if [ -f /usr/lib${LIBDIRSUFFIX}/libexiv2.so.0.27.5 ]; then
 sed -i src/tools/io/io_grid_image/CMakeLists.txt -e \
    's/Exiv2 GPS Tag extraction" ON)/Exiv2 GPS Tag extraction" OFF)/g'
fi

mkdir -p build
cd build
  cmake \
    -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -DCMAKE_INSTALL_MANDIR=/usr/man \
    -DWITH_TOOLS_VIGRA=OFF \
    $OPENCV \
    $ODBC \
    $WITHPDAL \
    $CMAKE_POLICY \
    -DCMAKE_BUILD_TYPE=Release ..
  make VERBOSE=1
  make install/strip DESTDIR=$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

# DCMAKE_INSTALL_MANDIR is not applied by the process we move files manually from /usr/share
mv $PKG/usr/share/man $PKG/usr/
find $PKG/usr/man -type f -exec gzip -9 {} \;
for i in $( find $PKG/usr/man -type l ) ; do ln -s $( readlink $i ).gz $i.gz ; rm $i ; done

mv $PKG/usr/share/metainfo $PKG/usr/share/appdata

# fix some bad perms in doc files that have to install
chmod 644 readme.md src/*.txt

PKGDOC=$PKG/usr/doc/$PRGNAM-$VERSION
mkdir -p $PKGDOC
cp -a readme.md src/gpl.txt src/lgpl.txt $PKGDOC
cat $CWD/$PRGNAM.SlackBuild > $PKGDOC/$PRGNAM.SlackBuild

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

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