TERMUX_PKG_HOMEPAGE=https://android.googlesource.com/platform/bionic/
TERMUX_PKG_DESCRIPTION="bionic libc, libm, libdl and dynamic linker for ubuntu host"
TERMUX_PKG_LICENSE="BSD 3-Clause"
TERMUX_PKG_MAINTAINER="@termux"
TERMUX_PKG_VERSION="8.0.0-r51"
TERMUX_PKG_REVISION=5
TERMUX_PKG_SHA256=6b42a86fc2ec58f86862a8f09a5465af0758ce24f2ca8c3cabb3bb6a81d96525
TERMUX_PKG_AUTO_UPDATE=false
TERMUX_PKG_BUILD_IN_SRC=true
TERMUX_PKG_SKIP_SRC_EXTRACT=true
# Should be handled by AOSP build system so I am disable it here.
TERMUX_PKG_UNDEF_SYMBOLS_FILES="all"

# Function to obtain the .deb URL
obtain_deb_url() {
	# jammy is last known Ubuntu distro which contains `libncurses.so.5` in packages
	local url="https://packages.ubuntu.com/jammy/amd64/$1/download"
	local attempt retries=5 wait=5
	local PAGE deb_url

	for ((attempt=1; attempt<=retries; attempt++)); do
		PAGE="$(curl -s "$url")"
		>&2 echo page
		>&2 echo "$PAGE"
		deb_url="$(grep -oE 'https?://.*\.deb' <<< "$PAGE" | head -n1)"
		if [[ -n "$deb_url" ]]; then
				echo "$deb_url"
				return 0
		else
			>&2 echo "Attempt $attempt: Failed to obtain URL. Retrying in $wait seconds..."
		fi
		sleep "$wait"
	done

	termux_error_exit "Failed to obtain URL after $retries attempts."
}

termux_step_get_source() {
	if $TERMUX_ON_DEVICE_BUILD; then
		termux_error_exit "Package '$TERMUX_PKG_NAME' is not safe for on-device builds."
	fi

	case "${TERMUX_ARCH}" in
		i686) _ARCH=x86 ;;
		aarch64) _ARCH=arm64 ;;
		*) _ARCH=${TERMUX_ARCH} ;;
	esac

	export LD_LIBRARY_PATH="${TERMUX_PKG_SRCDIR}/prefix/lib/x86_64-linux-gnu:${TERMUX_PKG_SRCDIR}/prefix/usr/lib/x86_64-linux-gnu"
	export PATH="${TERMUX_PKG_SRCDIR}/prefix/usr/bin:${PATH//$HOME\/.cargo\/bin/}"

	mkdir -p "${TERMUX_PKG_SRCDIR}/prefix"
	cd "${TERMUX_PKG_SRCDIR}" || termux_error_exit "Couldn't enter source code directory: ${TERMUX_PKG_SRCDIR}"

	cp -f "${TERMUX_PKG_BUILDER_DIR}/LICENSE.txt" "${TERMUX_PKG_SRCDIR}/LICENSE.txt"

	local URL DEB_NAME
	for i in libtinfo5 libncurses5 openssh-client; do
		URL="$(obtain_deb_url "$i")"
		DEB_NAME="${URL##*/}"
		termux_download "$URL" "${TERMUX_PKG_CACHEDIR}/${DEB_NAME}" SKIP_CHECKSUM

		mkdir -p "${TERMUX_PKG_TMPDIR}/${DEB_NAME}"
		ar x "${TERMUX_PKG_CACHEDIR}/${DEB_NAME}" --output="${TERMUX_PKG_TMPDIR}/${DEB_NAME}"
		tar xf "${TERMUX_PKG_TMPDIR}/${DEB_NAME}/data.tar.zst" -C "${TERMUX_PKG_SRCDIR}/prefix"
	done

	termux_download https://storage.googleapis.com/git-repo-downloads/repo "${TERMUX_PKG_CACHEDIR}/repo" SKIP_CHECKSUM
	chmod +x "${TERMUX_PKG_CACHEDIR}/repo"

	# Repo requires us to have a Git user name and email set.
	# The GitHub workflow does this, but the local build container doesn't
	[[ "$(git config --get user.name)" != '' ]] || git config --global user.name "Termux Github Actions"
	[[ "$(git config --get user.email)" != '' ]] || git config --global user.email "contact@termux.dev"
	"${TERMUX_PKG_CACHEDIR}"/repo init \
		-u https://android.googlesource.com/platform/manifest \
		-b main -m "${TERMUX_PKG_BUILDER_DIR}/default.xml" <<< 'n'
	"${TERMUX_PKG_CACHEDIR}"/repo sync -c -j32

	sed -i '1s|.*|\#!'"${TERMUX_PKG_SRCDIR}"'/prebuilts/python/linux-x86/2.7.5/bin/python2|' "${TERMUX_PKG_SRCDIR}/bionic/libc/fs_config_generator.py"
	sed -i '1s|.*|\#!'"${TERMUX_PKG_SRCDIR}"'/prebuilts/python/linux-x86/2.7.5/bin/python2|' "${TERMUX_PKG_SRCDIR}/external/clang/clang-version-inc.py"
	sed -i '/selinux/d' "${TERMUX_PKG_SRCDIR}/system/core/debuggerd/Android.bp"
	sed -i '/selinux/d' "${TERMUX_PKG_SRCDIR}/system/core/debuggerd/crash_dump.cpp"
	sed -i '/selinux/d' "${TERMUX_PKG_SRCDIR}/system/core/debuggerd/debuggerd.cpp"
}

termux_step_configure() {
	:
}

termux_step_make() {
	env -i LD_LIBRARY_PATH="$LD_LIBRARY_PATH" PATH="$PATH" bash -c "
		set -e;
		cd ${TERMUX_PKG_SRCDIR}
		source build/envsetup.sh;
		lunch aosp_${_ARCH}-eng;
		make JAVA_NOT_REQUIRED=true linker libc libm libdl libicuuc debuggerd crash_dump
	"
}

termux_step_make_install() {
	mkdir -p "${TERMUX_PREFIX}/opt/bionic-host/usr/icu"
	cp "${TERMUX_PKG_SRCDIR}/external/icu/icu4c/source/stubdata/icudt58l.dat" "${TERMUX_PREFIX}/opt/bionic-host/usr/icu/"
	cp -r "${TERMUX_PKG_SRCDIR}"/out/target/product/generic*/system/* "${TERMUX_PREFIX}/opt/bionic-host/"
}