# 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.

import os

from .config import Config


SRC_ROOT = os.path.abspath(os.path.join(__file__, '..', '..', '..', '..'))

class Paths(object):
  '''Provides commonly used paths'''

  def __init__(self, config):
    '''Generate paths to binary artifacts from a Config object.'''
    self.src_root = SRC_ROOT
    self.mojo_dir = os.path.join(self.src_root, 'mojo')

    self.build_dir = config.build_dir
    if self.build_dir is None:
      subdir = ''
      if config.target_os == Config.OS_ANDROID:
        subdir += 'android_'
        if config.target_cpu != Config.ARCH_ARM:
          subdir += config.target_cpu + '_'
      elif config.target_os == Config.OS_CHROMEOS:
        subdir += 'chromeos_'
      subdir += 'Debug' if config.is_debug else 'Release'
      if config.is_asan:
        subdir += '_asan'
      if not(config.is_debug) and config.dcheck_always_on:
        subdir += '_dcheck'
      self.build_dir = os.path.join(self.src_root, 'out', subdir)

    self.mojo_runner = [os.path.join(self.build_dir, 'mojo_runner')]
    if config.target_os == Config.OS_WINDOWS:
      self.mojo_runner[0] += '.exe'
    if config.target_os == Config.OS_ANDROID:
      self.apk_path = os.path.join(self.build_dir, 'apks', config.apk_name)
      self.mojo_runner = [os.path.join(self.src_root, 'mojo', 'tools',
                                       'android_mojo_shell.py'),
                          '--apk', self.apk_path]

  def RelPath(self, path):
    '''Returns the given path, relative to the current directory.'''
    return os.path.relpath(path)

  def SrcRelPath(self, path):
    '''Returns the given path, relative to self.src_root.'''
    return os.path.relpath(path, self.src_root)