#!/usr/bin/env bash

set -euo pipefail

root="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
third_party="$root/native/third-party"
mkdir -p "$third_party"

runtime_api="$(php -i | sed -n 's/^PHP API => //p' | head -n 1)"
config_api="$(php-config --phpapi)"
phpize_api="$(phpize --version | sed -n 's/^PHP Api Version:[[:space:]]*//p' | head -n 1)"

if [[ -z "$runtime_api" || -z "$config_api" || -z "$phpize_api" \
    || "$runtime_api" != "$config_api" || "$runtime_api" != "$phpize_api" ]]; then
    cat >&2 <<EOF
PHP build tools do not match the active PHP runtime.

php API:        ${runtime_api:-unknown}
php-config API: ${config_api:-unknown}
phpize API:     ${phpize_api:-unknown}

Install the development package matching the active PHP version and select its
phpize and php-config commands before building.
EOF
    exit 1
fi

if [[ ! -d "$third_party/liboqs/.git" ]]; then
    git clone --depth 1 https://github.com/open-quantum-safe/liboqs.git \
        "$third_party/liboqs"
fi

cmake -S "$third_party/liboqs" -B "$third_party/liboqs/build" -GNinja \
    -DBUILD_SHARED_LIBS=OFF \
    -DOQS_BUILD_ONLY_LIB=ON \
    -DOQS_MINIMAL_BUILD="SIG_falcon_padded_512"
ninja -C "$third_party/liboqs/build"

if [[ ! -d "$third_party/liboqs-php/.git" ]]; then
    git clone --depth 1 https://github.com/Muzosh/liboqs-php.git \
        "$third_party/liboqs-php"
fi

(
    cd "$third_party/liboqs-php"
    if git apply --check "$root/oqsphp-contractless.patch"; then
        git apply "$root/oqsphp-contractless.patch"
    elif ! git apply --reverse --check "$root/oqsphp-contractless.patch"; then
        echo "The Contractless liboqs-php patch cannot be applied cleanly." >&2
        exit 1
    fi
    LIBOQS_ROOT="$third_party/liboqs" bash build.sh
)

if [[ ! -d "$third_party/php-skein/.git" ]]; then
    git clone --depth 1 https://github.com/jedisct1/PHP-Skein-Hash.git \
        "$third_party/php-skein"
fi

(
    cd "$third_party/php-skein"
    phpize --clean >/dev/null 2>&1 || true
    phpize
    ./configure
    make
)

cat <<EOF

Native extensions built:
  $third_party/liboqs-php/build/oqsphp.so
  $third_party/php-skein/modules/skein.so

Do not add these paths directly to php.ini.
Run sudo ./install-linux.sh to install and enable both modules.
EOF