#!/bin/sh

set -e

case "$1" in
    -32)
        target_bits=32
        target_cpu=i686
        ;;
    -64)
        target_bits=64
        target_cpu=x86_64
        ;;
    *)
        echo >&2 'First parameter must be -32 or -64 for 32 bit or 64 bit target respectively.'
        exit 1
        ;;
esac
shift

target_arch="${target_cpu}-w64-mingw32"

export BUILD_ROOT="$HOME/vbam-build-mingw${target_bits}"

do_not_remove_dists=

host_dists='
    unzip zip cmake autoconf autoconf-archive automake m4 gsed bison flex-2.6.3
    flex c2man docbook2x libtool help2man texinfo xmlto pkgconfig nasm yasm
    xorg-macros dejavu liberation urw graphviz docbook4.2 docbook4.1.2
    docbook4.3 docbook4.4 docbook4.5 docbook5.0 docbook-xsl docbook-xsl-ns
    python2 python3 swig doxygen bakefile setuptools pip intltool ninja meson
    shared-mime-info gperf
'

both_dists='openssl zlib bzip2 libiconv xz expat libpng freetype fontconfig'

[ -n "$BUILD_ENV" ] && eval "$BUILD_ENV"

BUILD_ENV=$BUILD_ENV$(cat <<EOF

export CC='ccache ${target_arch}-gcc'
export CXX='ccache ${target_arch}-g++'

EOF
)

REQUIRED_CONFIGURE_ARGS="--host=${target_arch}"

REQUIRED_CMAKE_ARGS="-DCMAKE_TOOLCHAIN_FILE='$(readlink -f "${0%/*}/../../cmake/Toolchain-cross-MinGW-w64-${target_cpu}.cmake")'"

. "${0%/*}/../builder/mingw.sh"

fedora_installdeps() {
    pkg_prefix="mingw${target_bits}"

    set --
    for p in gcc cpp gcc-c++ binutils headers crt filesystem winpthreads-static; do
        set -- "$@" "${pkg_prefix}-${p}"
    done

    sudo dnf install -y --nogpgcheck --best --allowerasing "$@" gettext-devel wxGTK3-devel python
}

if [ $# -eq 0 ] && [ -f /etc/fedora-release ]; then
    puts "${NL}Installing cross dependencies for your OS...${NL}${NL}"
    fedora_installdeps
fi

openssl_host=mingw
[ "$target_bits" -eq 64 ] && openssl_host=mingw64

table_line_replace DIST_CONFIGURE_OVERRIDES openssl-target "./Configure $openssl_host no-shared --prefix=/usr --openssldir=/etc/ssl --cross-compile-prefix=${target_arch}-"

table_line_append DIST_PRE_BUILD bzip2-target ':; sed -i.bak '\''s,include <sys\\stat.h>,include <sys/stat.h>,g'\'' *.c;'

table_line_replace DIST_POST_BUILD harfbuzz "$(table_line DIST_POST_BUILD harfbuzz | sed 's/build_dist freetype /build_dist freetype-target /')"

table_line_append DIST_ARGS libsoxr '-DHAVE_WORDS_BIGENDIAN_EXITCODE=0'

vpx_target=x86-win32-gcc
[ "$target_bits" -eq 64 ] && vpx_target=x86_64-win64-gcc

table_line_replace DIST_CONFIGURE_OVERRIDES libvpx "./configure --target=$vpx_target $CONFIGURE_ARGS $(table_line DIST_ARGS libvpx)"

table_line_remove  DIST_ARGS                libvpx

table_line_replace DIST_CONFIGURE_OVERRIDES ffmpeg "\
    ./configure --arch=$target_cpu --target-os=mingw32 --cross-prefix=${target_arch}- \
        --pkg-config='$BUILD_ROOT/host/bin/pkg-config' \
        $CONFIGURE_ARGS $(table_line DIST_ARGS ffmpeg) \
"

table_line_remove  DIST_ARGS                ffmpeg

builder "$@"