#!/bin/bash
set -x

TOP=$(pwd)

SUBSURFACE_SOURCE=${TOP}/../../../subsurface
IOS_QT=${TOP}/Qt

# Build Subsurface-mobile by default
SUBSURFACE_MOBILE=1

# set up the versions by hand
GITVERSION=$(git describe --tags --abbrev=12)
CANONICALVERSION=$(git describe --tags --abbrev=12 | sed -e 's/-g.*$// ; s/^v//' | sed -e 's/-/./')
MOBILEVERSION=$(grep MOBILE ../../cmake/Modules/version.cmake | cut -d\" -f 2)

echo $GITVERSION
echo $CANONICALVERSION
echo $MOBILEVERSION
echo "#define GIT_VERSION_STRING \"$GITVERSION\"" > subsurface-ios/ssrf-version.h
echo "#define CANONICAL_VERSION_STRING \"$CANONICALVERSION\"" >> subsurface-ios/ssrf-version.h
echo "#define MOBILE_VERSION_STRING \"$MOBILEVERSION\"" >> subsurface-ios/ssrf-version.h

mkdir -p $TOP/install-root/lib $TOP/install-root/bin $TOP/install-root/include
PKG_CONFIG_LIBDIR=$TOP/install-root/lib/pkgconfig

export PKG_CONFIG_PATH=$PKG_CONFIG_LIBDIR

declare TOOLCHAIN_FILE="iPhoneSimulatorCMakeToolchain"
declare -x PREFIX=$TOP/install-root
declare -x SDK_NAME="iphonesimulator"
# Build architecture,  [armv7|armv7s|arm64|i386|x86_64]
declare -x ARCH_NAME="x86_64"
declare -x ARCH=$ARCH_NAME
declare -x SDK_DIR=`xcrun --sdk $SDK_NAME --show-sdk-path`
declare -x PLATFORM_DIR=`xcrun --sdk $SDK_NAME --show-sdk-platform-path`

declare -x CC=`xcrun -sdk $SDK_NAME -find clang`
declare -x CXX=`xcrun -sdk $SDK_NAME -find clang++`
declare -x LD=`xcrun -sdk $SDK_NAME -find ld`
declare -x CFLAGS="-arch $ARCH_NAME -isysroot $SDK_DIR -miphoneos-version-min=6.0 -I$SDK_DIR/usr/include"
declare -x CXXFLAGS="$CFLAGS"
declare -x LDFLAGS="$CFLAGS  -lpthread -lc++ -L$SDK_DIR/usr/lib"
export BUILDCHAIN=${ARCH_NAME}-apple-darwin

#iphonesimulator or iphoneos  // SIMULATOR or OS
export SDK=iphonesimulator
export IOS_PLATFORM=SIMULATOR64

# openssl build stuff.
export DEVELOPER=$(xcode-select --print-path)\
export IPHONEOS_SDK_VERSION=$(xcrun --sdk iphoneos --show-sdk-version)
export IPHONEOS_DEPLOYMENT_VERSION="6.0"
export IPHONEOS_PLATFORM=$(xcrun --sdk iphoneos --show-sdk-platform-path)
export IPHONEOS_SDK=$(xcrun --sdk iphoneos --show-sdk-path)
export IPHONESIMULATOR_PLATFORM=$(xcrun --sdk iphonesimulator --show-sdk-platform-path)
export IPHONESIMULATOR_SDK=$(xcrun --sdk iphonesimulator --show-sdk-path)
export OSX_SDK_VERSION=$(xcrun --sdk macosx --show-sdk-version)
export OSX_DEPLOYMENT_VERSION="10.8"
export OSX_PLATFORM=$(xcrun --sdk macosx --show-sdk-platform-path)
export OSX_SDK=$(xcrun --sdk macosx --show-sdk-path)

# Which versions are we building against?
SQLITE_VERSION=3090200
LIBXML2_VERSION=2.9.2
LIBXSLT_VERSION=1.1.28
LIBZIP_VERSION=1.0.1
LIBZIP_VERSION=0.11.2
LIBGIT2_VERSION=0.23.4
LIBSSH2_VERSION=1.6.0
LIBUSB_VERSION=1.0.19
OPENSSL_VERSION=1.0.1p
LIBFTDI_VERSION=1.2

target=$ARCH
hosttarget=$ARCH

if [ ! -e sqlite-autoconf-${SQLITE_VERSION}.tar.gz ] ; then
	curl -O http://www.sqlite.org/2015/sqlite-autoconf-${SQLITE_VERSION}.tar.gz
fi
if [ ! -e sqlite-autoconf-${SQLITE_VERSION} ] ; then
	tar -zxf sqlite-autoconf-${SQLITE_VERSION}.tar.gz
fi
if [ ! -e $PKG_CONFIG_LIBDIR/sqlite3.pc ] ; then
	mkdir -p sqlite-build-$ARCH_NAME
	pushd sqlite-build-$ARCH_NAME
	CFLAGS="${CFLAGS} -DSQLITE_ENABLE_LOCKING_STYLE=0"

	../sqlite-autoconf-${SQLITE_VERSION}/configure \
	--prefix="$PREFIX" \
	--host="$BUILDCHAIN" \
	--enable-static \
	--disable-shared \
	--disable-readline \
	--disable-dynamic-extensions

	# running make tries to build the command line executable which fails
	# so let's hack around that
	make libsqlite3.la
	touch sqlite3
	make install
	popd
fi

if [ ! -e libxml2-${LIBXML2_VERSION}.tar.gz ] ; then
	wget ftp://xmlsoft.org/libxml2/libxml2-${LIBXML2_VERSION}.tar.gz
fi
if [ ! -e libxml2-${LIBXML2_VERSION} ] ; then
	tar -zxf libxml2-${LIBXML2_VERSION}.tar.gz
fi
if [ ! -e $PKG_CONFIG_LIBDIR/libxml-2.0.pc ] ; then
	mkdir -p libxml2-build-$ARCH
	pushd libxml2-build-$ARCH
	../libxml2-${LIBXML2_VERSION}/configure --host=${BUILDCHAIN} --prefix=${PREFIX} --without-python --without-iconv --enable-static --disable-shared
	perl -pi -e 's/runtest\$\(EXEEXT\)//' Makefile
	perl -pi -e 's/testrecurse\$\(EXEEXT\)//' Makefile
	make
	make install
	popd
fi

if [ ! -e libxslt-${LIBXSLT_VERSION}.tar.gz ] ; then
	wget ftp://xmlsoft.org/libxml2/libxslt-${LIBXSLT_VERSION}.tar.gz
fi
if [ ! -e libxslt-${LIBXSLT_VERSION} ] ; then
	tar -zxf libxslt-${LIBXSLT_VERSION}.tar.gz
	# libxslt have too old config.sub
	cp libxml2-${LIBXML2_VERSION}/config.sub libxslt-${LIBXSLT_VERSION}
fi
if [ ! -e $PKG_CONFIG_LIBDIR/libxslt.pc ] ; then
	mkdir -p libxslt-build-$ARCH_NAME
	pushd libxslt-build-$ARCH_NAME
	../libxslt-${LIBXSLT_VERSION}/configure --host=${BUILDCHAIN} --prefix=${PREFIX} --with-libxml-prefix=${PREFIX} --without-python --without-crypto --enable-static --disable-shared
	make
	make install
	popd
fi

if [ ! -e libzip-${LIBZIP_VERSION}.tar.gz ] ; then
	wget http://www.nih.at/libzip/libzip-${LIBZIP_VERSION}.tar.gz
fi
if [ ! -e libzip-${LIBZIP_VERSION} ] ; then
	tar -zxf libzip-${LIBZIP_VERSION}.tar.gz
fi
if [ ! -e $PKG_CONFIG_LIBDIR/libzip.pc ] ; then
	mkdir -p libzip-build-$ARCH_NAME
	pushd libzip-build-$ARCH_NAME
	../libzip-${LIBZIP_VERSION}/configure --host=${BUILDCHAIN} --prefix=${PREFIX} --enable-static --disable-shared
	make
	make install
	popd
fi

configure_openssl() {
    OS=$1
    ARCH=$2
    PLATFORM=$3
    SDK_VERSION=$4
    DEPLOYMENT_VERSION=$5

    export CROSS_TOP="${PLATFORM}/Developer"
    export CROSS_SDK="${OS}${SDK_VERSION}.sdk"
# if [ "$ARCH" == "i386" ]; then
    ./Configure darwin64-${ARCH}-cc --openssldir="${PREFIX}" --prefix="${PREFIX}"
    sed -ie "s!^CFLAG=!CFLAG=-isysroot ${CROSS_TOP}/SDKs/${CROSS_SDK} -arch $ARCH -mios-simulator-version-min=${DEPLOYMENT_VERSION} !" "Makefile"
# else
#   ./Configure iphoneos-cross -no-asm --openssldir="${PREFIX}"
#  sed -ie "s!^CFLAG=!CFLAG=-mios-simulator-version-min=${DEPLOYMENT_VERSION} !" "Makefile"
#  perl -i -pe 's|static volatile sig_atomic_t intr_signal|static volatile int intr_signal|' crypto/ui/ui_openssl.c
# fi
}

build_openssl()
{
   ARCH=$1
   SDK=$2
   TYPE=$3
   export BUILD_TOOLS="${DEVELOPER}"
   mkdir -p "lib-${TYPE}"

   rm -rf openssl-${OPENSSL_VERSION}
   tar xfz openssl-${OPENSSL_VERSION}.tar.gz
   pushd .
   cd "openssl-${OPENSSL_VERSION}"
   #fix header for Swift
   sed -ie "s/BIGNUM \*I,/BIGNUM \*i,/g" crypto/rsa/rsa.h
   if [ "$TYPE" == "ios" ]; then
    # if [ "$ARCH" == "i386" ]; then
         configure_openssl "iPhoneSimulator" $ARCH ${IPHONESIMULATOR_PLATFORM} ${IPHONEOS_SDK_VERSION} ${IPHONEOS_DEPLOYMENT_VERSION}
    # else
    #    configure_openssl "iPhoneOS" $ARCH ${IPHONEOS_PLATFORM} ${IPHONEOS_SDK_VERSION} ${IPHONEOS_DEPLOYMENT_VERSION}
    # fi
   fi
   make
   make install_sw
   popd
}

if [ ! -e openssl-${OPENSSL_VERSION}.tar.gz ] ; then
	wget -O openssl-${OPENSSL_VERSION}.tar.gz http://www.openssl.org/source/openssl-${OPENSSL_VERSION}.tar.gz
fi
if [ ! -e openssl-build-$ARCH ] ; then
	tar -zxf openssl-${OPENSSL_VERSION}.tar.gz
	mv openssl-${OPENSSL_VERSION} openssl-build-$ARCH
fi
if [ ! -e $PKG_CONFIG_LIBDIR/libssl.pc ] ; then
	build_openssl "$ARCH" "${IPHONESIMULATOR_SDK}" "ios"
fi

if [ ! -e libssh2-${LIBSSH2_VERSION}.tar.gz ] ; then
	wget http://www.libssh2.org/download/libssh2-${LIBSSH2_VERSION}.tar.gz
fi
if [ ! -e libssh2-${LIBSSH2_VERSION} ] ; then
	tar -zxf libssh2-${LIBSSH2_VERSION}.tar.gz
fi
if [ ! -e $PKG_CONFIG_LIBDIR/libssh2.pc ] ; then
	mkdir -p libssh2-build-$ARCH
	pushd libssh2-build-$ARCH
	../libssh2-${LIBSSH2_VERSION}/configure --host=${BUILDCHAIN} --prefix=${PREFIX} --enable-static --disable-shared
	make
	make install
	# Patch away pkg-config dependency to zlib, its there, i promise
	perl -pi -e 's/^(Requires.private:.*),zlib$/$1 $2/' $PKG_CONFIG_LIBDIR/libssh2.pc
	popd
fi

if [ ! -e libgit2-${LIBGIT2_VERSION}.tar.gz ] ; then
	wget -O libgit2-${LIBGIT2_VERSION}.tar.gz https://github.com/libgit2/libgit2/archive/v${LIBGIT2_VERSION}.tar.gz
fi
if [ ! -e libgit2-${LIBGIT2_VERSION} ] ; then
	tar -zxf libgit2-${LIBGIT2_VERSION}.tar.gz
fi
if [ ! -e $PKG_CONFIG_LIBDIR/libgit2.pc ] ; then
	mkdir -p libgit2-build-$ARCH
	pushd libgit2-build-$ARCH
	cmake ../libgit2-${LIBGIT2_VERSION} \
	    -G "Unix Makefiles" \
	    -DBUILD_SHARED_LIBS="OFF" \
	    -DCMAKE_TOOLCHAIN_FILE="$TOOLCHAIN_DEV" \
		-DSHA1_TYPE=builtin \
		-DBUILD_CLAR=OFF \
		-DCMAKE_INSTALL_PREFIX=${PREFIX} \
		-DCMAKE_PREFIX_PATH=${PREFIX} \
		-DCURL=OFF \
		-DUSE_SSH=ON \
		-DOPENSSL_SSL_LIBRARY=${PREFIX}/lib/libssl.a \
		-DOPENSSL_CRYPTO_LIBRARY=${PREFIX}/lib/libcrypto.a \
		-DOPENSSL_INCLUDE_DIR=${PREFIX}/include/openssl \
		-D_OPENSSL_VERSION=1.0.1p \
		../libgit2-${LIBGIT2_VERSION}/
	make
	make install
	# Patch away pkg-config dependency to zlib, its there, i promise
	perl -pi -e 's/^(Requires.private:.*)zlib(.*)$/$1 $2/' $PKG_CONFIG_LIBDIR/libgit2.pc
	popd
fi

# let's skip libusb and libftdi for the moment...
# not sure if / when we'll be able to use USB devices on iOS
#
# if [ ! -e libusb-${LIBUSB_VERSION}.tar.gz ] ; then
# 	wget -O libusb-${LIBUSB_VERSION}.tar.gz https://github.com/libusb/libusb/archive/v${LIBUSB_VERSION}.tar.gz
# fi
# if [ ! -e libusb-${LIBUSB_VERSION} ] ; then
# 	tar -zxf libusb-${LIBUSB_VERSION}.tar.gz
# fi
# if ! grep -q libusb_set_android_open_callback libusb-${LIBUSB_VERSION}/libusb/libusb.h ; then
# 	# Patch in our libusb callback
# 	pushd libusb-${LIBUSB_VERSION}
# 	patch -p1 < $SUBSURFACE_SOURCE/packaging/android/patches/libusb-android.patch
# 	popd
# fi
# if [ ! -e libusb-${LIBUSB_VERSION}/configure ] ; then
# 	pushd libusb-${LIBUSB_VERSION}
# 	mkdir m4
# 	autoreconf -i
# 	popd
# fi
# if [ ! -e $PKG_CONFIG_LIBDIR/libusb-1.0.pc ] ; then
# 	mkdir -p libusb-build-$ARCH
# 	pushd libusb-build-$ARCH
# 	../libusb-${LIBUSB_VERSION}/configure --host=${BUILDCHAIN} --prefix=${PREFIX} --enable-static --disable-shared --disable-udev --enable-system-log
# 	# --enable-debug-log
# 	make
# 	make install
# 	popd
# 	# Patch libusb-1.0.pc due to bug in there
# 	# Fix comming in 1.0.20
# 	sed -ie 's/Libs.private:  -c/Libs.private: /' $PKG_CONFIG_LIBDIR/libusb-1.0.pc
# fi
#
# if [ ! -e libftdi1-${LIBFTDI_VERSION}.tar.bz2 ] ; then
# 	wget -O libftdi1-${LIBFTDI_VERSION}.tar.bz2 http://www.intra2net.com/en/developer/libftdi/download/libftdi1-${LIBFTDI_VERSION}.tar.bz2
# fi
# if [ ! -e libftdi1-${LIBFTDI_VERSION} ] ; then
# 	tar -jxf libftdi1-${LIBFTDI_VERSION}.tar.bz2
# fi
# if [ ! -e $PKG_CONFIG_LIBDIR/libftdi1.pc ] && [ $PLATFORM != Darwin ] ; then
# 	mkdir -p libftdi1-build-$ARCH
# 	pushd libftdi1-build-$ARCH
# 	cmake ../libftdi1-${LIBFTDI_VERSION} -DCMAKE_C_COMPILER=${CC} -DCMAKE_INSTALL_PREFIX=${PREFIX} -DCMAKE_PREFIX_PATH=${PREFIX} -DSTATICLIBS=ON -DPYTHON_BINDINGS=OFF -DDOCUMENTATION=OFF -DFTDIPP=OFF -DBUILD_TESTS=OFF -DEXAMPLES=OFF -DFTDI_EEPROM=OFF
# 	make
# 	make install
# 	popd
# fi
# # Blast away the shared version to force static linking
# if [ -e $PREFIX/lib/libftdi1.so ] ; then
# 	rm $PREFIX/lib/libftdi1.so*
# fi
#

# build libdivecomputer
if [ ! -d libdivecomputer ] ; then
	git clone -b Subsurface-branch git://subsurface-divelog.org/libdc libdivecomputer
fi
cd libdivecomputer
git pull --rebase
if ! git checkout Subsurface-branch ; then
	echo "can't check out the Subsurface-branch branch of libdivecomputer -- giving up"
	exit 1
fi
if [ ! -f configure ] ; then
	autoreconf --install
fi
cd ..

if [ ! -e $PKG_CONFIG_LIBDIR/libdivecomputer.pc ] ; then
	mkdir -p libdivecomputer-build-$ARCH
	pushd libdivecomputer-build-$ARCH
	../libdivecomputer/configure --host=${BUILDCHAIN} --prefix=${PREFIX} --enable-static --disable-shared --enable-examples=no --disable-libusb --disable-hidapi
	make
	make install
	popd
 fi

# Should we build the mobile ui or the desktop ui?