# -*- coding: utf-8 -*-
#
# Copyright (C) 2005-2007 Christopher Lenz <cmlenz@gmx.de>
# Copyright (C) 2006 Matthew Good <matt@matt-good.net>
# Copyright (C) 2007 Edgewall Software
# Copyright (C) 2009 Grzegorz Sobanski <silk@boktor.net>
# All rights reserved.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at http://bitten.edgewall.org/wiki/License.

"""Recipe commands for tools commonly used in Mono projects."""

from glob import glob
import logging
import os
import shlex
import tempfile

from bitten.build import CommandLine
from bitten.util import xmlio

log = logging.getLogger('bitten.build.monotools')

__docformat__ = 'restructuredtext en'


def _parse_suite(element):
    for child in element.children('results'):
        testcases = list(child.children('test-case'))
        if testcases:
            yield element, testcases

        for xmlsuite in child.children('test-suite'):
            for suite in _parse_suite(xmlsuite):
                yield suite


def _get_cases(fileobj):
    for testsuite in xmlio.parse(fileobj).children('test-suite'):
        for suite in _parse_suite(testsuite):
            yield suite


def nunit(ctxt, file_=None):
    """Extract test results from a NUnit XML report.
    
    :param ctxt: the build context
    :type ctxt: `Context`
    :param file\_: path to the NUnit XML test results; may contain globbing
                  wildcards for matching multiple results files
    """
    assert file_, 'Missing required attribute "file"'
    try:
        total, failed = 0, 0
        results = xmlio.Fragment()
        for path in glob(ctxt.resolve(file_)):
            fileobj = file(path, 'r')
            try:
                for suite, testcases in _get_cases(fileobj):
                    for testcase in testcases:
                        test = xmlio.Element('test')
                        test.attr['fixture'] = suite.attr['name']
                        if 'time' in testcase.attr:
                            test.attr['duration'] = testcase.attr['time']
                        if testcase.attr['executed'] == 'True':
                            if testcase.attr['success'] != 'True':
                                test.attr['status'] = 'failure'
                                failure = list(testcase.children('failure'))
                                if failure:
                                    stacktraceNode = list(failure[0].children('stack-trace'))
                                    if stacktraceNode:
                                        test.append(xmlio.Element('traceback')[
                                            stacktraceNode[0].gettext()
                                        ])
                                    failed += 1
                            else:
                                test.attr['status'] = 'success'
                        else:
                            test.attr['status'] = 'ignore'

                        results.append(test)
                        total += 1
            finally:
                fileobj.close()
        if failed:
            ctxt.error('%d of %d test%s failed' % (failed, total,
                       total != 1 and 's' or ''))
        ctxt.report('test', results)
    except IOError, e:
        log.warning('Error opening NUnit results file (%s)', e)
    except xmlio.ParseError, e:
        log.warning('Error parsing NUnit results file (%s)', e)