#!/usr/bin/python
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

from __future__ import unicode_literals

import subprocess
import sys
from os import path
from buildconfig import substs

import logging
log = logging.getLogger(__name__)

def determine_platform():
    platform_mapping = {'WINNT': {'x86_64': 'win64',
                                  'i686': 'win32'},
                        'Darwin': {'x86_64': 'macosx-universal',
                                   'i386':'macosx-universal'},
                        'Linux': {'x86_64': 'linux64',
                                  'i686': 'linux32'}}

    os_type = substs['OS_TARGET']
    cpu_type = substs['TARGET_CPU']
    return platform_mapping.get(os_type, {}).get(cpu_type, None)

def main():
    """ A wrapper script that calls compare-mozconfig.py
    based on the platform that the machine is building for"""
    platform = determine_platform()

    if platform is not None:
        python_exe = substs['PYTHON']
        topsrcdir = substs['top_srcdir']

        # construct paths and args for compare-mozconfig
        browser_dir = path.join(topsrcdir, 'browser')
        script_path = path.join(topsrcdir, 'build/compare-mozconfig/compare-mozconfigs.py')
        whitelist_path = path.join(browser_dir, 'config/mozconfigs/whitelist')
        beta_mozconfig_path = path.join(browser_dir, 'config/mozconfigs', platform, 'beta')
        release_mozconfig_path = path.join(browser_dir, 'config/mozconfigs', platform, 'release')
        nightly_mozconfig_path = path.join(browser_dir, 'config/mozconfigs', platform, 'nightly')

        log.info("Comparing beta against nightly mozconfigs")
        ret_code = subprocess.call([python_exe, script_path, '--whitelist',
                                    whitelist_path, '--no-download',
                                    platform + ',' + beta_mozconfig_path +
                                    ',' + nightly_mozconfig_path])

        if ret_code > 0:
            return ret_code

        log.info("Comparing release against nightly mozconfigs")
        ret_code = subprocess.call([python_exe, script_path, '--whitelist',
                                    whitelist_path, '--no-download',
                                    platform + ',' + release_mozconfig_path +
                                    ',' + nightly_mozconfig_path])

        return ret_code

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