#!/opt/tigersh-deps-0.1/bin/bash
# based on templates/build-from-source.sh v6

# Install python on OS X Tiger / PowerPC.

# FIXME: tkinter still isn't working.

package=python
version=3.11.2
upstream=https://www.python.org/ftp/python/$version/Python-$version.tgz
description="An interpreted, interactive, object-oriented programming language"

set -e -o pipefail
PATH="/opt/tigersh-deps-0.1/bin:$PATH"
TIGERSH_MIRROR=${TIGERSH_MIRROR:-https://leopard.sh}

if test -n "$(echo -n $0 | grep '\.ppc64\.sh$')" ; then
    ppc64=".ppc64"
fi

pkgspec=$package-$version$ppc64

# Note: python doesn't like libressl.
#   checking for openssl/ssl.h in /opt/libressl-3.4.2... yes
#   checking whether compiling and linking against OpenSSL works... yes
#   checking for --with-openssl-rpath... 
#   checking whether OpenSSL provides required ssl module APIs... no
#   checking whether OpenSSL provides required hashlib module APIs... no
# https://github.com/kisslinux/repo/issues/263
# https://peps.python.org/pep-0644/#libressl
# https://twitter.com/christianheimes/status/953991201660788736?lang=en

for dep in \
    readline-8.2$ppc64 \
    openssl-1.1.1t$ppc64 \
    xz-5.2.5$ppc64 \
    libffi-3.4.2$ppc64 \
    expat-2.5.0$ppc64 \
    sqlite3-3.40.1$ppc64 \
    gdbm-1.23$ppc64 \
    tcl-8.6.12$ppc64
do
    if ! test -e /opt/$dep ; then
        tiger.sh $dep
    fi
    CPPFLAGS="-I/opt/$dep/include $CPPFLAGS"
    LDFLAGS="-L/opt/$dep/lib $LDFLAGS"
    PATH="/opt/$dep/bin:$PATH"
done

# tk not available on ppc64 (no 64-bit X11 libs on Tiger).
if test -z "$ppc64" ; then
    for dep in \
        tk-8.6.12
    do
        if ! test -e /opt/$dep ; then
            tiger.sh $dep
        fi
        CPPFLAGS="-I/opt/$dep/include $CPPFLAGS"
        LDFLAGS="-L/opt/$dep/lib $LDFLAGS"
        PATH="/opt/$dep/bin:$PATH"
    done
fi

if ! test -e /opt/gcc-4.9.4 ; then
    tiger.sh gcc-libs-4.9.4
fi

echo -n -e "\033]0;tiger.sh $pkgspec ($(tiger.sh --cpu))\007"

if tiger.sh --install-binpkg $pkgspec ; then
    exit 0
fi

echo -e "${COLOR_CYAN}Building${COLOR_NONE} $pkgspec from source." >&2
set -x

if ! test -e /usr/bin/gcc ; then
    tiger.sh xcode-2.5
fi

if ! type -a gcc-4.9 >/dev/null 2>&1 ; then
    tiger.sh gcc-4.9.4
fi

# Tiger's /usr/bin/ld doesn't understand '-install_name'.
if ! test -e /opt/ld64-97.17 ; then
    tiger.sh ld64-97.17-tigerbrew
fi
export PATH="/opt/ld64-97.17/bin:$PATH"

echo -n -e "\033]0;tiger.sh $pkgspec ($(tiger.sh --cpu))\007"

tiger.sh --unpack-dist $pkgspec
cd /tmp/$package-$version

# Many thanks to the MacPorts team!
for triple in \
    "-p0 patch-setup.py.diff 0036648697b52bf335cf3b953a06292f" \
    "-p0 patch-Lib-cgi.py.diff 46927f93e99c7226553627e1ab8a4e2a" \
    "-p0 patch-configure.diff 05d083c703c411a400f994bcd1b193c1" \
    "-p0 patch-Lib-ctypes-macholib-dyld.py.diff 7590aab5132d3b70b4a7d1980c4d3a56" \
    "-p0 sysconfig.py.patch c1f459a3c809af606f81378caa73c45d" \
    "-p0 static_assert.patch d456ae0da65b11fbf3f7ab33c6bf3bcc" \
    "-p0 patch-no-copyfile-on-Tiger.diff 26274b5a66846bffaf35b0ea951afde8" \
    "-p0 patch-threadid-older-systems.diff 02c3f4bac14fef79e7ecae1af45a1f72" \
; do
    plevel=$(echo $triple | cut -d' ' -f1)
    pfile=$(echo $triple | cut -d' ' -f2)
    sum=$(echo $triple | cut -d' ' -f3)
    url=https://raw.githubusercontent.com/macports/macports-ports/master/lang/python311/files/$pfile
    curl --fail --silent --show-error --location --remote-name $url
    test "$(md5 -q $pfile)" = "$sum"
    patch $plevel < $pfile
done

# Tiger's /usr/bin/ld doesn't understand '-install_name'.
CC='gcc-4.9 -B/opt/ld64-97.17-tigerbrew/bin'

CFLAGS=$(tiger.sh -mcpu -O)
if test -n "$ppc64" ; then
    CFLAGS="-m64 $CFLAGS"
    LDFLAGS="-m64 $LDFLAGS"
fi

# Thanks to https://trac.macports.org/ticket/66483
LDFLAGS="$LDFLAGS -Wl,-read_only_relocs,suppress"

# Note: --enable-optimizations is unavailable for gcc-4.9:
#   configure: error: llvm-profdata is required for a --enable-optimizations build but could not be found.

# Don't include tk on ppc64.
if test -n "$ppc64" ; then
    /usr/bin/time ./configure -C --prefix=/opt/$pkgspec \
        --enable-shared \
        --with-openssl=/opt/openssl-1.1.1t$ppc64 \
        --with-system-ffi \
        --with-system-expat \
        --with-computed-gotos \
        CPPFLAGS="$CPPFLAGS" \
        LDFLAGS="$LDFLAGS" \
        CFLAGS="$CFLAGS" \
        OPT="$CFLAGS" \
        CC="$CC" \
        LIBLZMA_CFLAGS="-I/opt/xz-5.2.5$ppc64/include -L/opt/xz-5.2.5$ppc64/lib" \
        LIBLZMA_LIBS="-llzma" \
        LIBSQLITE3_CFLAGS="-I/opt/sqlite3-3.40.1$ppc64/include -L/opt/sqlite3-3.40.1$ppc64/lib" \
        LIBSQLITE3_LIBS="-lsqlite3" \
        GDBM_CFLAGS="-I/opt/gdbm-1.23$ppc64/include -L/opt/gdbm-1.23$ppc64/lib" \
        GDBM_LIBS="-lgdbm"
else
    /usr/bin/time ./configure -C --prefix=/opt/$pkgspec \
        --enable-shared \
        --with-openssl=/opt/openssl-1.1.1t \
        --with-system-ffi \
        --with-system-expat \
        --with-computed-gotos \
        CPPFLAGS="$CPPFLAGS" \
        LDFLAGS="$LDFLAGS" \
        CFLAGS="$CFLAGS" \
        OPT="$CFLAGS" \
        CC="$CC" \
        LIBLZMA_CFLAGS="-I/opt/xz-5.2.5/include -L/opt/xz-5.2.5/lib" \
        LIBLZMA_LIBS="-llzma" \
        LIBSQLITE3_CFLAGS="-I/opt/sqlite3-3.40.1/include -L/opt/sqlite3-3.40.1/lib" \
        LIBSQLITE3_LIBS="-lsqlite3" \
        GDBM_CFLAGS="-I/opt/gdbm-1.23/include -L/opt/gdbm-1.23/lib" \
        GDBM_LIBS="-lgdbm" \
        TCLTK_CFLAGS="-I/opt/tcl-8.6.12/include -I/opt/tk-8.6.12/include -L/opt/tcl-8.6.12/lib -L/opt/tk-8.6.12/lib" \
        TCLTK_LIBS="-ltcl8.6 -ltk8.6"
fi

    # --with-lto=full \
    # --with-system-libmpdec \

# Test the openssl integration via the REPL:
#  import ssl ; print(ssl.OPENSSL_VERSION)
#  import urllib.request ; print(urllib.request.urlopen("https://leopard.sh").read())

# libmpdec seems to be failing on the 64-bit build:
# gcc-4.9 -B/opt/ld64-97.17-tigerbrew/bin -c -I./Modules/_decimal/libmpdec -DUNIVERSAL=1  -DNDEBUG -m64 -mcpu=970 -O2 -m64 -mcpu=970 -O2   -std=c11 -Werror=implicit-function-declaration -fvisibility=hidden  -I./Include/internal  -I. -I./Include -I/opt/tcl-8.6.12.ppc64/include -I/opt/gdbm-1.23.ppc64/include -I/opt/sqlite3-3.40.1.ppc64/include -I/opt/expat-2.5.0.ppc64/include -I/opt/libffi-3.4.2.ppc64/include -I/opt/xz-5.2.5.ppc64/include -I/opt/openssl-1.1.1t.ppc64/include -I/opt/readline-8.2.ppc64/include     -o Modules/_decimal/libmpdec/basearith.o ./Modules/_decimal/libmpdec/basearith.c
# In file included from ./Modules/_decimal/libmpdec/basearith.c:29:0:
# ./Modules/_decimal/libmpdec/mpdecimal.h:215:4: error: #error "unsupported platform: need mpd_size_t == mpd_uint_t"
#    #error "unsupported platform: need mpd_size_t == mpd_uint_t"
#     ^
# In file included from ./Modules/_decimal/libmpdec/basearith.h:34:0,
#                  from ./Modules/_decimal/libmpdec/basearith.c:34:
# ./Modules/_decimal/libmpdec/typearith.h:612:4: error: #error "adapt mul_size_t() and mulmod_size_t()"
#    #error "adapt mul_size_t() and mulmod_size_t()"
#     ^
# make: *** [Modules/_decimal/libmpdec/basearith.o] Error 1
if test -n "$ppc64" ; then
    exit 1
fi

/usr/bin/time make $(tiger.sh -j) V=1

if test -n "$TIGERSH_RUN_TESTS" ; then
    make check
fi

make install

scripts_dir=/opt/$pkgspec/share/tiger.sh/$pkgspec
mkdir -p $scripts_dir

cat > $scripts_dir/test-ssl.py << 'EOF'
#!/usr/bin/env python3
import urllib.request
print(urllib.request.urlopen("https://leopard.sh").read())
EOF
chmod +x $scripts_dir/test-ssl.py

cat > $scripts_dir/test-tkinter.py << 'EOF'
#!/usr/bin/env python3
# thanks to https://www.geeksforgeeks.org/hello-world-in-tkinter/
from tkinter import *
root = Tk()
a = Label(root, text ="Hello World")
a.pack()
root.mainloop()
EOF
chmod +x $scripts_dir/test-tkinter.py

tiger.sh --linker-check $pkgspec
tiger.sh --arch-check $pkgspec $ppc64

if test -e config.cache ; then
    mkdir -p /opt/$pkgspec/share/tiger.sh/$pkgspec
    gzip -9 config.cache
    mv config.cache.gz /opt/$pkgspec/share/tiger.sh/$pkgspec/
fi