#! /bin/bash
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

# -- Available env vars --
# * COLLABORA_ONLINE_REPO - which git repo to clone the online monorepo from
# * COLLABORA_ONLINE_BRANCH - which branch to build
# * ENGINE_BUILD_TARGET - which make target to run for the engine
# * ONLINE_EXTRA_BUILD_OPTIONS - extra build options for online
#
# Note: on Alpine the engine must be built from source -- prebuilt engine
# assets are linked against glibc and won't work on musl.

if [ -z "$COLLABORA_ONLINE_REPO" ]; then
  COLLABORA_ONLINE_REPO="https://gerrit.collaboraoffice.com/online"
fi;
if [ -z "$COLLABORA_ONLINE_BRANCH" ]; then
  COLLABORA_ONLINE_BRANCH="main"
fi;
echo "Building branch '$COLLABORA_ONLINE_BRANCH' from '$COLLABORA_ONLINE_REPO'"

if [ -z "$ENGINE_BUILD_TARGET" ]; then
  ENGINE_BUILD_TARGET=""
fi;
echo "Engine build target: '$ENGINE_BUILD_TARGET'"

SRCDIR=$(realpath `dirname $0`)
INSTDIR="$SRCDIR/instdir"
BUILDDIR="$SRCDIR/builddir"

mkdir -p "$BUILDDIR"
cd "$BUILDDIR"

rm -rf "$INSTDIR" || true
mkdir -p "$INSTDIR"

# POCO is built as part of the engine (engine/external/poco) and picked up from
# its workdir automatically by the cool configure below; no separate build.


##### cloning & updating #####

# Clone the online monorepo (engine/ contains the rendering engine)
git clone --depth=1 --branch "$COLLABORA_ONLINE_BRANCH" "$COLLABORA_ONLINE_REPO" online || exit 1

##### engine #####

# Build engine from source -- prebuilt assets are glibc and don't work on musl.
( cd online/engine && ./autogen.sh --with-distro=CPLinux-LOKit --without-package-format --disable-symbols --with-lang=en-US ) || exit 1
( cd online/engine && make $ENGINE_BUILD_TARGET ) || exit 1

# copy stuff
mkdir -p "$INSTDIR"/opt/
cp -a online/engine/instdir "$INSTDIR"/opt/collaboraoffice

##### coolwsd & cool #####

# build
( cd online && ./autogen.sh ) || exit 1
( cd online && ./configure --prefix=/usr --sysconfdir=/etc --localstatedir=/var --disable-tests --with-lokit-path="$BUILDDIR"/online/engine/include --with-lo-path=/opt/collaboraoffice $ONLINE_EXTRA_BUILD_OPTIONS) || exit 1
( cd online && make -j $(nproc)) || exit 1

# copy stuff
( cd online && DESTDIR="$INSTDIR" make install ) || exit 1

# Build online branding if available
if test -d online-branding ; then
  if ! which sass &> /dev/null; then npm install -g sass; fi
  cd online-branding
  ./brand.sh $INSTDIR/opt/collaboraoffice $INSTDIR/usr/share/coolwsd/browser/dist CODE # CODE
  ./brand.sh $INSTDIR/opt/collaboraoffice $INSTDIR/usr/share/coolwsd/browser/dist NC-theme-community # Nextcloud Office
  cd ..
fi