#!/usr/bin/env bash

# exit when any command fails
set -e

# https://stackoverflow.com/a/246128
SCRIPT_DIR=$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" &>/dev/null && pwd)
ROOT_DIR=$(realpath $SCRIPT_DIR/..)
VULKAN_DIR=$ROOT_DIR/vulkan
GNOME_DIR=$ROOT_DIR/gnome
GNOME_BUILD_DIR=$GNOME_DIR/build

rm -rf $GNOME_BUILD_DIR
mkdir -p $GNOME_BUILD_DIR

PACKAGE_DIR=$GNOME_BUILD_DIR/breezy_gnome
rm -rf $PACKAGE_DIR
mkdir -p $PACKAGE_DIR

XREAL_DRIVER_DIR=$ROOT_DIR/modules/XRLinuxDriver
source $XREAL_DRIVER_DIR/bin/inject_ua

# check out submodules, recursively for nested ones
git submodule update --init --recursive

# if a custom_banner image exists, copy it over the sombrero one
if [ -e "$VULKAN_DIR/custom_banner.png" ]; then
  cp $VULKAN_DIR/custom_banner.png $PACKAGE_DIR
fi

# copy vulkan setup scripts and configs
mkdir -p $PACKAGE_DIR/bin
copy_and_inject_ua "$XREAL_DRIVER_DIR/bin/ua.sh" "$PACKAGE_DIR/bin" "$GNOME_DIR/bin/setup" "$GNOME_DIR/bin/breezy_gnome_verify" "$GNOME_DIR/bin/breezy_gnome_uninstall"

XREAL_BINARY=$XREAL_DRIVER_DIR/build/xrealAirLinuxDriver.tar.gz
pushd $XREAL_DRIVER_DIR

if [ ! -e "$XREAL_BINARY" ] || [ "$1" != "--skip-module-builds" ]; then
  # if a file exists at custom_banner_config.yml, copy it to the xrealAirLinuxDriver directory
  if [ -e "$VULKAN_DIR/custom_banner_config.yml" ]; then
    cp $VULKAN_DIR/custom_banner_config.yml $XREAL_DRIVER_DIR
  fi

  # strange issue where the base library produces a .so file if the build is not cleaned
  rm -rf build/

  BREEZY_DESKTOP=1 bin/package
fi

XREAL_MANIFEST_LINE=$(sha256sum build/driver_air_glasses/manifest)
popd

cp $XREAL_BINARY $PACKAGE_DIR
cp $XREAL_DRIVER_DIR/bin/xreal_driver_setup $PACKAGE_DIR/bin

gnome/bin/package_extension
cp gnome/out/* $PACKAGE_DIR

# create a checksum that combines the checksums of all files in the directory
pushd gnome/src
GNOME_MANIFEST_LINE=$(find -L . -type f ! -name "*.compiled" -exec sha256sum {} \; | sort | sha256sum | sed 's/ .*//')
popd

ui/bin/package
cp ui/out/* $PACKAGE_DIR

# create manifest file for verifying installed file checksums against the originally packaged versions
# include any file that doesn't get modified during setup (e.g. vkBasalt.json files)
pushd $PACKAGE_DIR
echo $XREAL_MANIFEST_LINE > manifest
echo -e "$GNOME_MANIFEST_LINE breezydesktop@xronlinux.com" >> manifest
popd

# bundle everything up
pushd $GNOME_BUILD_DIR
tar -zcvf breezyGNOME.tar.gz breezy_gnome
popd