# -*- coding: utf-8 -*-
"""
    rhodecode.tests.test_hg_operations
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    Test suite for making push/pull operations

    :created_on: Dec 30, 2010
    :author: marcink
    :copyright: (C) 2010-2012 Marcin Kuzminski <marcin@python-works.com>
    :license: GPLv3, see COPYING for more details.
"""
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

import os
import time
import sys
import shutil
import logging

from os.path import join as jn
from os.path import dirname as dn

from tempfile import _RandomNameSequence
from subprocess import Popen, PIPE

from paste.deploy import appconfig
from pylons import config
from sqlalchemy import engine_from_config

from rhodecode.lib.utils import add_cache
from rhodecode.model import init_model
from rhodecode.model import meta
from rhodecode.model.db import User, Repository, UserLog
from rhodecode.lib.auth import get_crypt_password

from rhodecode.tests import TESTS_TMP_PATH, NEW_HG_REPO, HG_REPO
from rhodecode.config.environment import load_environment

rel_path = dn(dn(dn(os.path.abspath(__file__))))

conf = appconfig('config:%s' % sys.argv[1], relative_to=rel_path)
load_environment(conf.global_conf, conf.local_conf)

add_cache(conf)

USER = 'test_admin'
PASS = 'test12'
HOST = '127.0.0.1:5000'
DEBUG = False
print 'DEBUG:', DEBUG
log = logging.getLogger(__name__)

engine = engine_from_config(conf, 'sqlalchemy.db1.')
init_model(engine)
sa = meta.Session()


class Command(object):

    def __init__(self, cwd):
        self.cwd = cwd

    def execute(self, cmd, *args):
        """Runs command on the system with given ``args``.
        """

        command = cmd + ' ' + ' '.join(args)
        log.debug('Executing %s' % command)
        if DEBUG:
            print command
        p = Popen(command, shell=True, stdout=PIPE, stderr=PIPE, cwd=self.cwd)
        stdout, stderr = p.communicate()
        if DEBUG:
            print stdout, stderr
        return stdout, stderr


def test_wrapp(func):

    def __wrapp(*args, **kwargs):
        print '>>>%s' % func.__name__
        try:
            res = func(*args, **kwargs)
        except Exception, e:
            print ('###############\n-'
                   '--%s failed %s--\n'
                   '###############\n' % (func.__name__, e))
            sys.exit()
        print '++OK++'
        return res
    return __wrapp


def create_test_user(force=True):
    print '\tcreating test user'

    user = User.get_by_username(USER)

    if force and user is not None:
        print '\tremoving current user'
        for repo in Repository.query().filter(Repository.user == user).all():
            sa.delete(repo)
        sa.delete(user)
        sa.commit()

    if user is None or force:
        print '\tcreating new one'
        new_usr = User()
        new_usr.username = USER
        new_usr.password = get_crypt_password(PASS)
        new_usr.email = 'mail@mail.com'
        new_usr.name = 'test'
        new_usr.lastname = 'lasttestname'
        new_usr.active = True
        new_usr.admin = True
        sa.add(new_usr)
        sa.commit()

    print '\tdone'


def create_test_repo(force=True):
    from rhodecode.model.repo import RepoModel

    user = User.get_by_username(USER)
    if user is None:
        raise Exception('user not found')

    repo = sa.query(Repository).filter(Repository.repo_name == HG_REPO).scalar()

    if repo is None:
        print '\trepo not found creating'

        form_data = {'repo_name':HG_REPO,
                     'repo_type':'hg',
                     'private':False,
                     'clone_uri':'' }
        rm = RepoModel(sa)
        rm.base_path = '/home/hg'
        rm.create(form_data, user)


def set_anonymous_access(enable=True):
    user = User.get_by_username('default')
    user.active = enable
    sa.add(user)
    sa.commit()
    print '\tanonymous access is now:', enable
    if enable != User.get_by_username('default').active:
        raise Exception('Cannot set anonymous access')


def get_anonymous_access():
    user = User.get_by_username('default')
    return user.active


#==============================================================================
# TESTS
#==============================================================================
@test_wrapp
def test_clone_with_credentials(no_errors=False):
    cwd = path = jn(TESTS_TMP_PATH, HG_REPO)

    try:
        shutil.rmtree(path, ignore_errors=True)
        os.makedirs(path)
        #print 'made dirs %s' % jn(path)
    except OSError:
        raise

    print '\tchecking if anonymous access is enabled'
    anonymous_access = get_anonymous_access()
    if anonymous_access:
        print '\tenabled, disabling it '
        set_anonymous_access(enable=False)

    clone_url = 'http://%(user)s:%(pass)s@%(host)s/%(cloned_repo)s %(dest)s' % \
                  {'user':USER,
                   'pass':PASS,
                   'host':HOST,
                   'cloned_repo':HG_REPO,
                   'dest':path}

    stdout, stderr = Command(cwd).execute('hg clone', clone_url)

    if no_errors is False:
        assert """adding file changes""" in stdout, 'no messages about cloning'
        assert """abort""" not in stderr , 'got error from clone'


@test_wrapp
def test_clone_anonymous():
    cwd = path = jn(TESTS_TMP_PATH, HG_REPO)

    try:
        shutil.rmtree(path, ignore_errors=True)
        os.makedirs(path)
        #print 'made dirs %s' % jn(path)
    except OSError:
        raise


    print '\tchecking if anonymous access is enabled'
    anonymous_access = get_anonymous_access()
    if not anonymous_access:
        print '\tnot enabled, enabling it '
        set_anonymous_access(enable=True)

    clone_url = 'http://%(host)s/%(cloned_repo)s %(dest)s' % \
                  {'user':USER,
                   'pass':PASS,
                   'host':HOST,
                   'cloned_repo':HG_REPO,
                   'dest':path}

    stdout, stderr = Command(cwd).execute('hg clone', clone_url)

    assert """adding file changes""" in stdout, 'no messages about cloning'
    assert """abort""" not in stderr , 'got error from clone'

    #disable if it was enabled
    if not anonymous_access:
        print '\tdisabling anonymous access'
        set_anonymous_access(enable=False)


@test_wrapp
def test_clone_wrong_credentials():
    cwd = path = jn(TESTS_TMP_PATH, HG_REPO)

    try:
        shutil.rmtree(path, ignore_errors=True)
        os.makedirs(path)
        #print 'made dirs %s' % jn(path)
    except OSError:
        raise

    print '\tchecking if anonymous access is enabled'
    anonymous_access = get_anonymous_access()
    if anonymous_access:
        print '\tenabled, disabling it '
        set_anonymous_access(enable=False)

    clone_url = 'http://%(user)s:%(pass)s@%(host)s/%(cloned_repo)s %(dest)s' % \
                  {'user':USER + 'error',
                   'pass':PASS,
                   'host':HOST,
                   'cloned_repo':HG_REPO,
                   'dest':path}

    stdout, stderr = Command(cwd).execute('hg clone', clone_url)

    if not """abort: authorization failed"""  in stderr:
        raise Exception('Failure')


@test_wrapp
def test_pull():
    pass


@test_wrapp
def test_push_modify_file(f_name='setup.py'):
    cwd = path = jn(TESTS_TMP_PATH, HG_REPO)
    modified_file = jn(TESTS_TMP_PATH, HG_REPO, f_name)
    for i in xrange(5):
        cmd = """echo 'added_line%s' >> %s""" % (i, modified_file)
        Command(cwd).execute(cmd)

        cmd = """hg ci -m 'changed file %s' %s """ % (i, modified_file)
        Command(cwd).execute(cmd)

    Command(cwd).execute('hg push %s' % jn(TESTS_TMP_PATH, HG_REPO))


@test_wrapp
def test_push_new_file(commits=15, with_clone=True):

    if with_clone:
        test_clone_with_credentials(no_errors=True)

    cwd = path = jn(TESTS_TMP_PATH, HG_REPO)
    added_file = jn(path, '%ssetupążźć.py' % _RandomNameSequence().next())

    Command(cwd).execute('touch %s' % added_file)

    Command(cwd).execute('hg add %s' % added_file)

    for i in xrange(commits):
        cmd = """echo 'added_line%s' >> %s""" % (i, added_file)
        Command(cwd).execute(cmd)

        cmd = """hg ci -m 'commited new %s' -u '%s' %s """ % (i,
                                'Marcin Kuźminski <marcin@python-blog.com>',
                                added_file)
        Command(cwd).execute(cmd)

    push_url = 'http://%(user)s:%(pass)s@%(host)s/%(cloned_repo)s' % \
                  {'user':USER,
                   'pass':PASS,
                   'host':HOST,
                   'cloned_repo':HG_REPO,
                   'dest':jn(TESTS_TMP_PATH, HG_REPO)}

    Command(cwd).execute('hg push --verbose --debug %s' % push_url)


@test_wrapp
def test_push_wrong_credentials():
    cwd = path = jn(TESTS_TMP_PATH, HG_REPO)
    clone_url = 'http://%(user)s:%(pass)s@%(host)s/%(cloned_repo)s' % \
                  {'user':USER + 'xxx',
                   'pass':PASS,
                   'host':HOST,
                   'cloned_repo':HG_REPO,
                   'dest':jn(TESTS_TMP_PATH, HG_REPO)}

    modified_file = jn(TESTS_TMP_PATH, HG_REPO, 'setup.py')
    for i in xrange(5):
        cmd = """echo 'added_line%s' >> %s""" % (i, modified_file)
        Command(cwd).execute(cmd)

        cmd = """hg ci -m 'commited %s' %s """ % (i, modified_file)
        Command(cwd).execute(cmd)

    Command(cwd).execute('hg push %s' % clone_url)


@test_wrapp
def test_push_wrong_path():
    cwd = path = jn(TESTS_TMP_PATH, HG_REPO)
    added_file = jn(path, 'somefile.py')

    try:
        shutil.rmtree(path, ignore_errors=True)
        os.makedirs(path)
        print '\tmade dirs %s' % jn(path)
    except OSError:
        raise

    Command(cwd).execute("""echo '' > %s""" % added_file)
    Command(cwd).execute("""hg init %s""" % path)
    Command(cwd).execute("""hg add %s""" % added_file)

    for i in xrange(2):
        cmd = """echo 'added_line%s' >> %s""" % (i, added_file)
        Command(cwd).execute(cmd)

        cmd = """hg ci -m 'commited new %s' %s """ % (i, added_file)
        Command(cwd).execute(cmd)

    clone_url = 'http://%(user)s:%(pass)s@%(host)s/%(cloned_repo)s' % \
                  {'user':USER,
                   'pass':PASS,
                   'host':HOST,
                   'cloned_repo':HG_REPO + '_error',
                   'dest':jn(TESTS_TMP_PATH, HG_REPO)}

    stdout, stderr = Command(cwd).execute('hg push %s' % clone_url)
    if not """abort: HTTP Error 403: Forbidden"""  in stderr:
        raise Exception('Failure')


@test_wrapp
def get_logs():
    return UserLog.query().all()


@test_wrapp
def test_logs(initial):
    logs = UserLog.query().all()
    operations = 4
    if len(initial) + operations != len(logs):
        raise Exception("missing number of logs initial:%s vs current:%s" % \
                            (len(initial), len(logs)))


if __name__ == '__main__':
    create_test_user(force=False)
    create_test_repo()

    initial_logs = get_logs()
    print 'initial activity logs: %s' % len(initial_logs)
    s = time.time()
    #test_push_modify_file()
    test_clone_with_credentials()
    test_clone_wrong_credentials()

    test_push_new_file(commits=2, with_clone=True)

    test_clone_anonymous()
    test_push_wrong_path()

    test_push_wrong_credentials()

    test_logs(initial_logs)
    print 'finished ok in %.3f' % (time.time() - s)