#!/bin/bash

# author: Maciej Suminski <maciej.suminski@cern.ch>
# contributors: madworm

SNAPSHOT_REV="99a20162d5038a328d335d11da69c9eee0549fdc"
SNAPSHOT_GIT="git://git.code.sf.net/p/ngspice/ngspice"

BUILD_DIR="/tmp/libngspice_so"
SRC_DIR="${BUILD_DIR}/ngspice"

if [ -n "${MINGW_PREFIX}" ]; then
    OSTYPE="mingw"
fi

case "${OSTYPE}" in
    "linux"*)
        CFG_OPTIONS="--enable-openmp"
        ;;

    "darwin"*)      # OS X
        # ngspice requires bison 2.7, the one in /usr/bin is 2.3
        export PATH="/usr/local/Cellar/bison/3.0.4/bin:${PATH}"
        ;;

    "mingw"*)
        CFG_OPTIONS="--prefix ${MINGW_PREFIX} --enable-openmp"
        ;;

    *)
        echo "ERROR: Could not detect the operating system type."
        echo
        echo "Run:"
        echo "OSTYPE=type ${0}"
        echo "where 'type' is linux (Linux), darwin (OSX) or mingw (MinGW)"
        exit 1
        ;;
esac


if [ "$1" = "install" ]; then
    if [ -d ${SRC_DIR} ]; then
	cd ${SRC_DIR}
    else
	echo "*** ngspice has not been built yet"
        exit 1
    fi
    make install

    echo "*** Installation completed successfully! ***"
    exit 0
fi


if [ "$1" = "uninstall" ]; then
    if [ -d ${SRC_DIR} ]; then
	cd ${SRC_DIR}
    else
	echo "*** ngspice has not been built yet"
        exit 1
    fi
    make uninstall

    echo "*** Uninstallation completed successfully! ***"
    exit 0
fi


[ -d "${BUILD_DIR}" ] && rm -rf "${BUILD_DIR}"
mkdir -p "${BUILD_DIR}"
cd "${BUILD_DIR}" || exit

echo "libngspice (for KiCad) builder v1.2"
echo "(c) CERN 2016"
echo "author: Maciej Suminski <maciej.suminski@cern.ch>"
echo "contributors: madworm"
echo
echo "PREREQUISITES: autoconf automake bison flex gcc git libtool make"
echo

echo "*** Downloading ngspice source code.. ***"
git clone ${SNAPSHOT_GIT}

if [ $? != 0 ]; then
    echo "*** An error occurred when downloading the source code ***"
    exit 1
fi

if [ -d ${SRC_DIR} ]; then
    cd "${SRC_DIR}"
else
    echo "*** An error occurred when downloading the source code ***"
    exit 1
fi

echo "*** Building libngspice shared library.. ***"
git checkout ${SNAPSHOT_REV}
./autogen.sh
./configure --with-ngshared --enable-xspice --enable-cider ${CFG_OPTIONS}
make

if [ $? != 0 ]; then
    echo "*** Build failed ***"
    exit 1
fi

echo
echo "*** ngspice shared library has been built successfully! ***"
echo
echo "Now, to finish the installation run the script as root with 'install' parameter:"
echo "sudo $0 install"
echo
echo "It can be uninstalled with 'uninstall' parameter:"
echo "sudo $0 uninstall"