#!/bin/bash
#
# Copyright 2022 The Fuchsia Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
#
# Updates the version of ffx used by this repository to the latest
# version.
#
# Usage:
#   update_fuchsia_sdk.sh
#
# Arguments:
#    --cleanup: Removes old product bundles and shuts down old emulators.
#               Default: false
#    --no-version-bump: Does all the cleanup that comes with updating the SDK version without
#                       changing the SDK version. You usually want to pass --cleanup with this.
#                       Default: false

set -e # Fail on any error.
source "$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)"/lib/helpers.sh || exit $?

ensure-embedder-dir

# Parse arguments.
cleanup=0
no_version_bump=0
while [[ $# -gt 0 ]]; do
  case $1 in
    --cleanup)
      cleanup=1
      shift # past argument
      ;;
    --no-version-bump)
      no_version_bump=1
      shift # past argument
      ;;
    *)
      shift # past value
      ;;
  esac
done

if [[ "${no_version_bump}" -eq 0 ]]
then
  echo-info "Updating the Fuchsia SDK checkout..."
  git -C $FUCHSIA_EMBEDDER_DIR/third_party/sdk-integration pull origin main
fi

echo-info "Building the embedder to fetch the updated Fuchsia SDK tools..."
pushd $FUCHSIA_EMBEDDER_DIR
$FUCHSIA_EMBEDDER_DIR/tools/bazel clean
$FUCHSIA_EMBEDDER_DIR/tools/bazel build --config=fuchsia_x64 //src/embedder
popd

if [[ "${cleanup}" -eq 0 ]]
then
  echo-info "flutter-embedder's Fuchsia SDK has been updated to version $($FUCHSIA_EMBEDDER_DIR/tools/ffx version)."
  echo-warning 'You should restart any running emulators (`$FUCHSIA_EMBEDDER_DIR/tools/ffx emu stop`)'
  echo-warning 'and update your product bundles (`$FUCHSIA_EMBEDDER_DIR/tools/ffx product-bundle get workstation_eng.qemu-x64`) as'
  echo-warning 'old images may be incompatible with the updated SDK.'
  echo-warning 'To do this automatically, run: $FUCHSIA_EMBEDDER_DIR/scripts/update_fuchsia_sdk.sh --cleanup --no-version-bump'
  exit 0
fi

echo-info "Cleaning up old things that are incompatible with the new SDK."
echo-info "If you don't want this, don't run the script with --cleanup."

echo-info "Killing any running emulators..."
$FUCHSIA_EMBEDDER_DIR/tools/ffx emu stop

# Installing the product-bundle fails when the user has product bundles
# from a previous version of ffx installed, so we clean up old product bundles
# here.
# TODO(akbiggs): Is there something less invasive we can do here?
echo-info "Deleting old product bundles..."
$FUCHSIA_EMBEDDER_DIR/tools/ffx product-bundle remove --force
# If we don't stop the repository server here, `product-bundle get`
# can complain with "A package repository already exists" and fail to
# download the new product bundle.
$FUCHSIA_EMBEDDER_DIR/tools/ffx repository server stop

echo-info "Refetching the workstation_eng.qemu-x64 product bundle..."
$FUCHSIA_EMBEDDER_DIR/tools/ffx product-bundle get workstation_eng.qemu-x64

echo
echo-info "flutter-embedder's Fuchsia SDK has been updated to version $($FUCHSIA_EMBEDDER_DIR/tools/ffx version)."
echo-info "You will need to restart your emulator by running:"
echo '$FUCHSIA_EMBEDDER_DIR/tools/ffx emu start workstation_eng.qemu-x64'
echo-info "Or if you're running from a non-graphical environment:"
echo '$FUCHSIA_EMBEDDER_DIR/tools/ffx emu start workstation_eng.qemu-x64 --headless'