#!/bin/sh

set -e

case "$1" in
    -32)
        shift
        if [ "$MSYSTEM" != MINGW32 ]; then
            unset MSYSTEM_PREFIX MSYSTEM_CARCH MSYSTEM_CHOST MINGW_CHOST MINGW_PREFIX MINGW_PACKAGE_PREFIX CONFIG_SITE ACLOCAL_PATH PKG_CONFIG_PATH
            OPWD=$PWD
            export MSYSTEM=MINGW32
            . /etc/profile || :
            cd "$OPWD"
        fi
        ;;
    -64)
        shift
        if [ "$MSYSTEM" != MINGW64 ]; then
            unset MSYSTEM_PREFIX MSYSTEM_CARCH MSYSTEM_CHOST MINGW_CHOST MINGW_PREFIX MINGW_PACKAGE_PREFIX CONFIG_SITE ACLOCAL_PATH PKG_CONFIG_PATH
            OPWD=$PWD
            export MSYSTEM=MINGW64
            . /etc/profile || :
            cd "$OPWD"
        fi
        ;;
esac

OMSYSTEM=$MSYSTEM

case "$MSYSTEM" in
    MINGW32)
        export HOST_SYSTEM=i686-w64-mingw32
        sys_base=/mingw32
        export BUILD_ROOT="$HOME/vbam-build-msys2-i686"
        target_bits=32
        target_cpu=i686
        ;;
    MINGW64)
        export HOST_SYSTEM=x86_64-w64-mingw32
        sys_base=/mingw64
        export BUILD_ROOT="$HOME/vbam-build-msys2-x86_64"
        target_bits=64
        target_cpu=x86_64
        ;;
    MSYS)
        exec "$0" "$@" -64
        ;;
    *)
        echo >&2 'You must be in either the MINGW32 or MINGW64 environment.'
        exit 1
        ;;
esac

# turn on real symlinks
new_msys= replaced=
for part in $MSYS; do
    case "$part" in
        winsymlinks:*)
            new_msys="$new_msys winsymlinks:nativestrict"
            replaced=1
            ;;
        *)
            new_msys="$new_msys $part"
            ;;
    esac
done

if [ -n "$replaced" ]; then
    export MSYS=$new_msys
else
    export MSYS="winsymlinks:nativestrict $new_msys"
fi

PATH_SEP=';'

CMAKE_PREFIX_PATH=
for dir in /lib /bin "$HOST_SYSTEM/lib" "$HOST_SYSTEM/bin"; do
    CMAKE_PREFIX_PATH="$CMAKE_PREFIX_PATH;$(cygpath -m "$sys_base/$dir")"
done

export CMAKE_PREFIX_PATH="$(cygpath -m "$BUILD_ROOT/root");${CMAKE_PREFIX_PATH%;}"

ignore_msys_paths=
for d in /usr /usr/include /usr/lib; do
    ignore_msys_paths="$ignore_msys_paths;$(cygpath -m "$d")"
done
ignore_msys_paths=${ignore_msys_paths#;}

export CMAKE_BASE_ARGS="-G 'MSYS Makefiles' -DCMAKE_IGNORE_PATH='$ignore_msys_paths'"

export TMP_DIR="$BUILD_ROOT/tmp_$$"

BUILD_ENV=$BUILD_ENV$(cat <<'EOF'

# on don't translate prefix and defines by default
export MSYS2_ARG_CONV_EXCL="-D;/usr;/etc"

EOF
)

export BUILD_ENV

DIST_TAR_ARGS="
    help2man        --exclude ChangeLog
    sfml            --exclude libs-osx
    expat           --exclude README.md
    libsoxr         --exclude inst-check-soxr-lsr
    graphviz        --exclude COPYING --exclude graphviz.spec
"

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

host_env() {
    cat <<EOF
unset MSYSTEM_PREFIX MSYSTEM_CARCH MSYSTEM_CHOST MINGW_CHOST MINGW_PREFIX MINGW_PACKAGE_PREFIX CONFIG_SITE ACLOCAL_PATH PKG_CONFIG_PATH

OPWD="\$PWD"
export MSYSTEM=MSYS
. /etc/profile || :
. ~/.bashrc 2>/dev/null || :
$BUILD_ENV
EOF

    cd "$OPWD"
    host_env_base 2>/dev/null || :
}

target_env() {
    cat <<EOF
unset MSYSTEM_PREFIX MSYSTEM_CARCH MSYSTEM_CHOST MINGW_CHOST MINGW_PREFIX MINGW_PACKAGE_PREFIX CONFIG_SITE ACLOCAL_PATH PKG_CONFIG_PATH

OPWD="\$PWD"
export MSYSTEM="\$OMSYSTEM"
. /etc/profile || :
. ~/.bashrc 2>/dev/null || :
$BUILD_ENV
EOF

    cd "$OPWD"
    target_env_base 2>/dev/null || :
}

table_line_append DIST_PRE_BUILD c2man ":; \
    sed -i.bak '/test -d c:\\//,/^fi\$/d' Configure; \
"

table_line_append DIST_PATCHES xmlto 'https://gist.githubusercontent.com/rkitover/55d51ab3d55af510b37872a49670436c/raw/b447beaffc2daa747ba6eaf222f69677c7d4a169/xmlto-0.0.28-mingw.patch'

# FIXME: problems with autopoint that need to be sorted
table_line_remove DISTS flex

table_line_replace DIST_CONFIGURE_TYPES fontconfig autoreconf
table_line_append  DIST_PRE_BUILD       fontconfig ":; \
    sed -i.bak 's|ln -s \\\$(templatedir)|cp -af \$(DESTDIR)/\$(templatedir)|g' conf.d/Makefile.am; \
"

if mime_info_libs=$(table_line DIST_EXTRA_LIBS shared-mime-info); then
    table_line_replace DIST_EXTRA_LIBS shared-mime-info "$(puts "$mime_info_libs" | sed 's/-ldl//g; s/-lresolv//g;')"
fi

table_line_remove  DIST_CONFIGURE_OVERRIDES unzip
table_line_remove  DIST_PRE_BUILD           unzip

table_line_replace DIST_MAKE_ARGS         unzip '-f win32/Makefile.gcc NOASM=1 CC_CPU_OPT='
table_line_replace DIST_INSTALL_OVERRIDES unzip 'cp -af $(find . -name "*.exe") "$BUILD_ROOT/root/bin"'

table_line_replace DIST_PRE_BUILD unzip ":; \
    sed -i.bak 's,#include \"../unzip\\.h\",#include <windows.h>,; \
                t; \
                s,#include <windows.h>,#include \"../unzip.h\",' win32/win32.c win32/nt.c; \
"

table_line_append  DIST_PATCHES zip 'https://gist.githubusercontent.com/rkitover/17e4c90185b7ad533e848b6230a90b8d/raw/434e0f74c872a928e77b93bdbf4ee9a1140fe879/zip-mingw.patch'

table_line_remove  DIST_CONFIGURE_OVERRIDES zip
table_line_remove  DIST_PRE_BUILD           zip

table_line_replace DIST_MAKE_ARGS         zip '-f win32/Makefile.gcc'
table_line_replace DIST_INSTALL_OVERRIDES zip 'cp -af *.exe "$BUILD_ROOT/root/bin"'

table_line_replace DIST_POST_BUILD unzip ":; \
    mkdir -p \"\$BUILD_ROOT/root/bin\"; \
    cp -a \"\$BUILD_ROOT/dists/unzip\"/*.exe \"\$BUILD_ROOT/root/bin\"; \
"

table_line_replace DIST_CONFIGURE_OVERRIDES openssl "$(table_line DIST_CONFIGURE_OVERRIDES openssl | sed 's,^./config ,./Configure Cygwin-x86_64 ,')"

builder "$@"