#!/usr/bin/env bash

set -ex

# Configure the following variables according to your needs

OPENSSL_TAG_VERSION="OpenSSL_1_1_1g "
CURL_TAG_VERSION="master "
JSONC_TAG_VERSION="master"
IOS_MIN_VERSION="13.0"

# Edit below at your own risk

XCODE_ROOT="$(xcode-select -p)/Platforms"
VARIANTS="Simulator OS"

get_toolchain() {
    (
    cd deps
    test -d ios-cmake || git clone https://github.com/cristeab/ios-cmake.git
    )
}

make_openssl() {
    (
    cd deps
    test -d openssl || git clone --branch $OPENSSL_TAG_VERSION https://github.com/openssl/openssl.git
    for VARIANT in $VARIANTS; do
        (
        export PREFIX="$BUILD_DIR/ios/$VARIANT"
        #export PLATFORM="${XCODE_ROOT}/iPhone${VARIANT}.platform"
        #export SDK="${PLATFORM}/Developer/SDKs/iPhone${VARIANT}.sdk"
        mkdir -p "$PREFIX"
        cd openssl
        git checkout $OPENSSL_TAG_VERSION
        make clean
        #export CC=clang
        #export PATH="${XCODE_ROOT}/../Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin:$PATH"
        #export CROSS_TOP=${PLATFORM}/Developer
        #export CROSS_SDK="iPhone${VARIANT}.sdk"
        case $VARIANT in
            OS)
                export TARGET=ios64-xcrun
                ;;
            Simulator)
                export TARGET=iossimulator-xcrun
                ;;
        esac
        ./Configure \
            --prefix="$PREFIX" \
            no-dso \
            no-hw \
            no-engine \
            no-shared \
            $TARGET
        make -j $(sysctl -n hw.logicalcpu_max)
        make install_dev
        )
    done
    )
}

make_curl() {
    (
    cd deps
    test -d curl || git clone --branch $CURL_TAG_VERSION https://github.com/curl/curl.git
    for VARIANT in $VARIANTS; do
        (
        export PREFIX="$BUILD_DIR/ios/$VARIANT"
        export PLATFORM="${XCODE_ROOT}/iPhone${VARIANT}.platform"
        export SDK="${PLATFORM}/Developer/SDKs/iPhone${VARIANT}.sdk"
        case $VARIANT in
            OS)
                export ARCH=arm64
                export HOST=arm-apple-darwin
                break;;
            Simulator)
                export ARCH=x86_64
                export HOST=x86_64-apple-darwin
                break;;
        esac
        export CPPFLAGS="-DCURL_BUILD_IOS"
        export CFLAGS="-arch ${ARCH} -pipe -Os -gdwarf-2 -isysroot ${SDK} -miphoneos-version-min=${IOS_MIN_VERSION} -fembed-bitcode"
        export LDFLAGS="-arch ${ARCH} -isysroot ${SDK}"
        mkdir -p "$PREFIX"
        cd curl
        git checkout $CURL_TAG_VERSION
        test -f configure || ./buildconf
        make clean
        ./configure \
            --disable-shared \
            --without-zlib \
            --enable-static \
            --enable-ipv6 \
            --host="${HOST}" \
            --with-darwinssl \
            --prefix=${PREFIX}
            #--with-ssl="$PREFIX" \
        make -j $(sysctl -n hw.logicalcpu_max)
        make install
        )
    done
    )
}

make_jsonc() {
    (
    cd deps
    test -d json-c || git clone --branch $JSONC_TAG_VERSION https://github.com/json-c/json-c.git
    for VARIANT in $VARIANTS; do
    (
        export PLATFORM="${XCODE_ROOT}/iPhone${VARIANT}.platform"
        export SDK="${PLATFORM}/Developer/SDKs/iPhone${VARIANT}.sdk"
        export PREFIX="$BUILD_DIR/ios/$VARIANT"
        mkdir -p "$PREFIX"
        cd json-c
        git checkout $JSONC_TAG_VERSION
        if [ -d $VARIANT ]; then
            rm -rf $VARIANT
        fi
        mkdir $VARIANT
        pushd $VARIANT
        cmake \
            -DCMAKE_FIND_ROOT_PATH=$PREFIX \
            -DCMAKE_INCLUDE_PATH=$PREFIX/include \
            -DCMAKE_PREFIX_PATH="${PREFIX};${SDK}/usr" \
    	    -DCMAKE_IOS_DEVELOPER_ROOT="$PLATFORM" \
    	    -DCMAKE_IOS_SDK_ROOT="$SDK" \
            -DIOS_PLATFORM=$(echo $VARIANT | tr a-z A-Z) \
    	    -DCMAKE_TOOLCHAIN_FILE=../../ios-cmake/toolchain/iOS.cmake \
            -DCMAKE_INSTALL_PREFIX=$PREFIX \
            -DBUILD_SHARED_LIBS=OFF \
            -DBUILD_STATIC_LIBS=ON \
            ..
        make -j $(sysctl -n hw.logicalcpu_max)
        make install
    )
    done
    )
}

make_pihelper() {
    for VARIANT in $VARIANTS; do
    (
        export PLATFORM="${XCODE_ROOT}/iPhone${VARIANT}.platform"
        export SDK="${PLATFORM}/Developer/SDKs/iPhone${VARIANT}.sdk"
        export PREFIX="$BUILD_DIR/ios/$VARIANT"
        mkdir -p "$PREFIX"
        pushd build
        if [ -d $VARIANT ]; then
            rm -rf $VARIANT
        fi
        mkdir $VARIANT
        pushd $VARIANT
        cmake \
            -DCMAKE_FIND_ROOT_PATH=$PREFIX \
            -DCMAKE_INCLUDE_PATH=$PREFIX/include \
            -DCMAKE_PREFIX_PATH="${PREFIX};${SDK}/usr" \
            -DCMAKE_IOS_DEVELOPER_ROOT="$PLATFORM" \
            -DCMAKE_IOS_SDK_ROOT="$SDK" \
            -DIOS_PLATFORM=$(echo $VARIANT | tr a-z A-Z) \
            -DCMAKE_TOOLCHAIN_FILE=../../deps/ios-cmake/toolchain/iOS.cmake \
            -DCMAKE_INSTALL_PREFIX=$PREFIX \
            -DPIHELPER_DEV=ON \
            -DPIHELPER_SHARED=OFF \
            -DPIHELPER_STATIC=ON \
            ../..
        make -j $(sysctl -n hw.logicalcpu_max)
        make install
    )
    done
}

package() {
    cd $BUILD_DIR/ios
    cp -r OS/include .
    for LIB in json-c curl ssl crypto pihelper; do
        (
        lipo -create \
            OS/lib/lib${LIB}.a \
            Simulator/lib/lib${LIB}.a \
            -output lib${LIB}.dylib
        )
    done
}

(
if [ "$(dirname $0)" == "." ]; then
    cd ..
fi
test -d deps || mkdir deps
export BUILD_DIR="$PWD/build"
test -d "$BUILD_DIR" || mkdir -p "$BUILD_DIR"
get_toolchain
make_openssl
#make_curl
#make_jsonc
#make_pihelper
package
)