#!/bin/bash
# Copyright 2022 The Chromium Authors.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

# This script is meant to be run once to setup the example demo agent.
# Run it with one command line argument: the path to a directory where the
# demo agent will be built. This should be a directory outside the SDK
# directory tree. By default, if no directory is supplied, a directory
# named `build` in the project root will be used.
#
# Once the build is prepared, the demo binary is built using the command
# `cmake --build <build-dir>`, where <build-dir> is the same argument given
# to this script.

set -euo pipefail

export ROOT_DIR=$(realpath $(dirname $0))
export DEMO_DIR=$(realpath $ROOT_DIR/demo)
export PROTO_DIR=$(realpath  $ROOT_DIR/proto)
# Defaults to $ROOT_DIR/build if no argument is provided.
export BUILD_DIR=$(realpath ${1:-$ROOT_DIR/build})

echo Root dir:   $ROOT_DIR
echo Build dir:  $BUILD_DIR
echo Demo dir:   $DEMO_DIR
echo Proto dir:  $PROTO_DIR

# Prepare build directory
mkdir -p $BUILD_DIR
# Prepare protobuf out directory
mkdir -p $BUILD_DIR/gen
# Enter build directory
cd $BUILD_DIR

# Install vcpkg and use it to install Google Protocol Buffers.
test -d vcpkg || (
  git clone https://github.com/microsoft/vcpkg
  ./vcpkg/bootstrap-vcpkg.sh -disableMetrics
)
# Install any packages we want from vcpkg.
./vcpkg/vcpkg install protobuf
./vcpkg/vcpkg install gtest

# Generate the build files.
export CMAKE_TOOLCHAIN_FILE=./vcpkg/scripts/buildsystems/vcpkg.cmake
cmake $ROOT_DIR