# Copyright (C) Max Romanov
# Copyright (C) Igor Sysoev
# Copyright (C) NGINX, Inc.


shift

for nxt_option; do

    case "$nxt_option" in
        -*=*) value=`echo "$nxt_option" | sed -e 's/[-_a-zA-Z0-9]*=//'`     ;;
           *) value="" ;;
    esac

    case "$nxt_option" in
        --config=*)    NXT_PHP_CONFIG="$value"                               ;;
        --module=*)    NXT_PHP_MODULE="$value"                               ;;
        --lib-path=*)  NXT_PHP_LIB_PATH="$value"                             ;;
        --lib-static)  NXT_PHP_LIB_STATIC=yes                                ;;

        --help)
            cat << END

    --config=FILE         set php-config filename
    --module=NAME         set unit php module name
    --lib-path=DIRECTORY  set directory path to libphp.so library
    --lib-static          enable linking with static libphp.a library

END
            exit 0
        ;;

        *)
            echo
            echo $0: error: invalid PHP option \"$nxt_option\"
            echo
            exit 1
        ;;

    esac

done


if [ ! -f $NXT_AUTOCONF_DATA ]; then
   echo
   echo Please run common $0 before configuring module \"$nxt_module\".
   echo
   exit 1
fi

. $NXT_AUTOCONF_DATA


NXT_PHP_CONFIG=${NXT_PHP_CONFIG=php-config}
NXT_PHP=${NXT_PHP_CONFIG%-config*}
NXT_PHP_MODULE=${NXT_PHP_MODULE=${NXT_PHP##*/}}
NXT_PHP_LIB_PATH=${NXT_PHP_LIB_PATH=}
NXT_PHP_LIB_STATIC=${NXT_PHP_LIB_STATIC=no}
NXT_PHP_ADDITIONAL_FLAGS=
NXT_PHP_REALPATH=realpath


if [ -z `which $NXT_PHP_REALPATH` ]; then
    NXT_PHP_REALPATH="readlink -e"
fi


$echo "configuring PHP module"
$echo "configuring PHP module ..." >> $NXT_AUTOCONF_ERR

$echo -n "checking for PHP ..."
$echo "checking for PHP ..." >> $NXT_AUTOCONF_ERR

NXT_PHP_LDFLAGS=

if /bin/sh -c "${NXT_PHP_CONFIG} --version" >> $NXT_AUTOCONF_ERR 2>&1; then

    $echo " found"

    NXT_PHP_VERSION="`${NXT_PHP_CONFIG} --version`"
    NXT_PHP_EXT_DIR="`${NXT_PHP_CONFIG} --extension-dir`"
    NXT_PHP_LIBC_DIR="`${CC} --print-file-name=libc.so`"
    NXT_PHP_LIBC_DIR="`$NXT_PHP_REALPATH $NXT_PHP_LIBC_DIR`"
    NXT_PHP_LIBC_DIR="`dirname $NXT_PHP_LIBC_DIR`"
    NXT_PHP_SYSLIB_DIR="`${CC} --print-file-name=libtinfo.so`"
    NXT_PHP_SYSLIB_DIR="`$NXT_PHP_REALPATH $NXT_PHP_SYSLIB_DIR`"
    NXT_PHP_SYSLIB_DIR="`dirname $NXT_PHP_SYSLIB_DIR`"

    $echo " + PHP SAPI: [`${NXT_PHP_CONFIG} --php-sapis`]"

    NXT_PHP_MAJOR_VERSION=${NXT_PHP_VERSION%%.*}
    NXT_PHP_MINOR_VERSION=${NXT_PHP_VERSION#*.}
    NXT_PHP_MINOR_VERSION=${NXT_PHP_MINOR_VERSION%%.*}

    if [ $NXT_PHP_MAJOR_VERSION = 5 -a $NXT_PHP_MINOR_VERSION -lt 4 ]; then
        NXT_PHP_ADDITIONAL_FLAGS=-Wno-write-strings
    fi

    NXT_PHP_INCLUDE="`${NXT_PHP_CONFIG} --includes`"

    if [ $NXT_PHP_LIB_STATIC = yes ]; then

        if [ "$NXT_PHP_LIB_PATH" = "" ]; then
            $echo
            $echo $0: error: --lib-static option requires --lib-path option.
            $echo
            exit 1;
        fi

        NXT_PHP_LIB="$NXT_PHP_LIB_PATH/libphp${NXT_PHP_VERSION%%.*}.a"
        NXT_PHP_LDFLAGS="`${NXT_PHP_CONFIG} --ldflags` \
                         `${NXT_PHP_CONFIG} --libs`"

    else
        if [ $NXT_PHP_MAJOR_VERSION -ge 8 ]; then
            NXT_PHP_LIB="-lphp"
        else
            NXT_PHP_LIB="-lphp${NXT_PHP_VERSION%%.*}"
        fi

        if [ "$NXT_PHP_LIB_PATH" != "" ]; then
            # "php-config --ldflags" does not contain path to libphp, but
            # contains usually path to libraries required by extensions.
            NXT_PHP_LDFLAGS="-L${NXT_PHP_LIB_PATH} \
                             -Wl,-rpath ${NXT_PHP_LIB_PATH}"
        fi
    fi

else
    $echo
    $echo $0: error: no PHP found.
    $echo
    exit 1;
fi


nxt_feature="PHP version"
nxt_feature_name=""
nxt_feature_run=value
nxt_feature_incs="${NXT_PHP_INCLUDE}"
nxt_feature_libs="${NXT_PHP_LIB} ${NXT_PHP_LDFLAGS}"
nxt_feature_test="
    #include <php.h>

    int main() {
        printf(\"%s\", PHP_VERSION);
        return 0;
    }"

. auto/feature


nxt_feature="PHP embed SAPI"
nxt_feature_name=""
nxt_feature_run=no
nxt_feature_incs="${NXT_PHP_INCLUDE}"
nxt_feature_libs="${NXT_PHP_LIB} ${NXT_PHP_LDFLAGS}"
nxt_feature_test="
    #include <php.h>
    #include <php_main.h>

    int main() {
        php_module_startup(NULL, NULL, 0);
        return 0;
    }"

. auto/feature

if [ $nxt_found = no ]; then
    $echo
    $echo $0: error: no PHP embed SAPI found.
    $echo
    exit 1;
fi


nxt_feature="PHP Zend Thread Safety"
nxt_feature_name=""
nxt_feature_run=no
nxt_feature_incs="${NXT_PHP_INCLUDE}"
nxt_feature_libs="${NXT_PHP_LIB} ${NXT_PHP_LDFLAGS}"
nxt_feature_test="
    #include <php.h>
    #include <php_main.h>

    int main() {
        #ifndef ZTS
        #error ZTS is not defined.
        #endif
        return 0;
    }"

. auto/feature


# Bug #71041 (https://bugs.php.net/bug.php?id=71041).

nxt_feature="PHP zend_signal_startup()"
nxt_feature_name=""
nxt_feature_run=no
nxt_feature_incs="${NXT_PHP_INCLUDE}"
nxt_feature_libs="${NXT_PHP_LIB} ${NXT_PHP_LDFLAGS}"
nxt_feature_test="
    #include <php.h>
    #include <php_main.h>

    int main() {
        zend_signal_startup();
        return 0;
    }"

. auto/feature

if [ $nxt_found = yes ]; then
    NXT_ZEND_SIGNAL_STARTUP=1
else
    NXT_ZEND_SIGNAL_STARTUP=0
fi


if grep ^$NXT_PHP_MODULE: $NXT_MAKEFILE 2>&1 > /dev/null; then
    $echo
    $echo $0: error: duplicate \"$NXT_PHP_MODULE\" module configured.
    $echo
    exit 1;
fi


NXT_PHP_MOUNTS_HEADER=nxt_${NXT_PHP_MODULE}_mounts.h

cat << END > $NXT_BUILD_DIR/$NXT_PHP_MOUNTS_HEADER
static const nxt_fs_mount_t  nxt_php_mounts[] = {
    {(u_char *) "$NXT_PHP_EXT_DIR", (u_char *) "$NXT_PHP_EXT_DIR",
     (u_char *) "bind", NXT_MS_BIND | NXT_MS_REC, NULL, 1},
    {(u_char *) "$NXT_PHP_LIBC_DIR", (u_char *) "$NXT_PHP_LIBC_DIR",
     (u_char *) "bind", NXT_MS_BIND | NXT_MS_REC, NULL, 1},
    {(u_char *) "$NXT_PHP_SYSLIB_DIR", (u_char *) "$NXT_PHP_SYSLIB_DIR",
     (u_char *) "bind", NXT_MS_BIND | NXT_MS_REC, NULL, 1},
};

END


$echo " + PHP module: ${NXT_PHP_MODULE}.unit.so"

. auto/cc/deps

$echo >> $NXT_MAKEFILE

NXT_PHP_MODULE_SRCS=" \
    src/nxt_php_sapi.c \
"

# The php module object files.

nxt_objs=$NXT_BUILD_DIR/src/nxt_unit.o

for nxt_src in $NXT_PHP_MODULE_SRCS; do

    nxt_obj=${nxt_src%.c}-$NXT_PHP_MODULE.o
    nxt_dep=${nxt_src%.c}-$NXT_PHP_MODULE.dep
    nxt_dep_flags=`nxt_gen_dep_flags`
    nxt_dep_post=`nxt_gen_dep_post`
    nxt_objs="$nxt_objs $NXT_BUILD_DIR/$nxt_obj"

    cat << END >> $NXT_MAKEFILE

$NXT_BUILD_DIR/$nxt_obj:	$nxt_src $NXT_VERSION_H
	\$(CC) -c \$(CFLAGS) -DNXT_PHP_MOUNTS_H=\"$NXT_PHP_MOUNTS_HEADER\" \\
    $NXT_PHP_ADDITIONAL_FLAGS \$(NXT_INCS) \\
	$NXT_PHP_INCLUDE -DNXT_ZEND_SIGNAL_STARTUP=$NXT_ZEND_SIGNAL_STARTUP \\
	$nxt_dep_flags \\
	-o $NXT_BUILD_DIR/$nxt_obj $nxt_src
	$nxt_dep_post

-include $NXT_BUILD_DIR/$nxt_dep

END

done


cat << END >> $NXT_MAKEFILE

.PHONY: ${NXT_PHP_MODULE}
.PHONY: ${NXT_PHP_MODULE}-install
.PHONY: ${NXT_PHP_MODULE}-uninstall

all: ${NXT_PHP_MODULE}

${NXT_PHP_MODULE}:	$NXT_BUILD_DIR/${NXT_PHP_MODULE}.unit.so

$NXT_BUILD_DIR/${NXT_PHP_MODULE}.unit.so:	$nxt_objs
	\$(NXT_MODULE_LINK) -o $NXT_BUILD_DIR/${NXT_PHP_MODULE}.unit.so \\
	$nxt_objs ${NXT_PHP_LIB} ${NXT_PHP_LDFLAGS} $NXT_LD_OPT


install: ${NXT_PHP_MODULE}-install

${NXT_PHP_MODULE}-install: ${NXT_PHP_MODULE} install-check
	install -d \$(DESTDIR)$NXT_MODULES
	install -p $NXT_BUILD_DIR/${NXT_PHP_MODULE}.unit.so \\
		\$(DESTDIR)$NXT_MODULES/


uninstall: ${NXT_PHP_MODULE}-uninstall

${NXT_PHP_MODULE}-uninstall:
	rm -f \$(DESTDIR)$NXT_MODULES/${NXT_PHP_MODULE}.unit.so
	@rmdir -p \$(DESTDIR)$NXT_MODULES 2>/dev/null || true

END