#!/usr/bin/python
# Copyright 2014 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

"""Builds the AppRTC collider using the golang toolchain.

The golang toolchain is downloaded by download_golang.py. We use that here
to build the AppRTC collider server.
"""

import os
import shutil
import subprocess
import sys

import utils


def main():
  web_samples_dir = os.path.join('webrtc-samples', 'samples', 'web')
  golang_workspace = os.path.join('src', 'out', 'go-workspace')
  shutil.rmtree(golang_workspace, ignore_errors=True)
  golang_workspace_src = os.path.join(golang_workspace, 'src')

  collider_dir = os.path.join(web_samples_dir, 'content', 'apprtc', 'collider')
  shutil.copytree(collider_dir, golang_workspace_src,
                  ignore=shutil.ignore_patterns('.svn', '.git'))

  golang_binary = 'go%s' % ('.exe' if utils.GetPlatform() == 'win' else '')
  golang_path = os.path.join('go', 'bin', golang_binary)

  golang_env = os.environ.copy()
  golang_env['GOROOT'] = os.path.abspath('go')
  golang_env['GOPATH'] = os.path.abspath(golang_workspace)
  golang_env['PATH'] += os.pathsep + os.path.abspath('mercurial')
  subprocess.check_call([golang_path, 'get', 'collidermain'],
                        env=golang_env)
  subprocess.check_call([golang_path, 'build', 'collidermain'],
                        env=golang_env)

if __name__ == '__main__':
  sys.exit(main())