#    Copyright 2015 Mirantis, Inc.
#
#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.

from __future__ import unicode_literals

import subprocess

from joblib import Parallel, delayed

from fuelweb_test.testrail.settings import TestRailSettings
from fuelweb_test.testrail.testrail_client import TestRailProject


TEST_GROUPS = ["API", "CLI", "Scenario", "ThirdParty"]
TEST_SECTIONS = ["Ceilometer", "Cinder", "Glance", "Heat", "Ironic",
                 "Keystone", "Network", "Nova", "Sahara", "Swift", "Other"]


def generate_groups(line):
    section = "Other"

    for group in [{"names": [".telemetry.", ], "tag": "Ceilometer"},
                  {"names": [".volume.", ], "tag": "Cinder"},
                  {"names": [".image.", ], "tag": "Glance"},
                  {"names": [".orchestration.", ], "tag": "Heat"},
                  {"names": [".baremetal.", ], "tag": "Ironic"},
                  {"names": [".identity.", ], "tag": "Keystone"},
                  {"names": [".network.", ], "tag": "Network"},
                  {"names": [".compute.", ], "tag": "Nova"},
                  {"names": [".data_processing.", ], "tag": "Sahara"},
                  {"names": [".object_storage.", ], "tag": "Swift"}]:
        for name in group["names"]:
            if name in line:
                section = group["tag"]

    for group in TEST_SECTIONS:
        if group.lower() in line and section == "Other":
            section = group

    return section


def get_tests_descriptions(milestone_id, tests_include, tests_exclude):
    # To get the Tempest tests list, need to execute the following commands:
    # git clone https://github.com/openstack/tempest & cd tempest & tox -venv
    get_tempest_tests = """cd tempest && .tox/venv/bin/nosetests \\
        --collect-only tempest/{0} -v 2>&1 | grep 'id-.*'"""

    tests = []

    for group in TEST_GROUPS:
        p = subprocess.Popen(get_tempest_tests.format(group.lower()),
                             shell=True, stdout=subprocess.PIPE)

        for line in iter(p.stdout.readline, b''):
            if "id-" in line:
                section = generate_groups(line) if group == "API" else group

                test_class = []
                for r in line.split("."):
                    if "id-" in r:
                        title = r.strip()
                        break
                    else:
                        test_class.append(r)

                steps = [{"run this tempest test": "passed"}, ]
                test_case = {
                    "title": title,
                    "type_id": 1,
                    "priority_id": 5,
                    "estimate": "1m",
                    "refs": "",
                    "milestone_id": milestone_id,
                    "custom_test_group": ".".join(test_class),
                    "custom_test_case_description": title,
                    "custom_test_case_steps": steps,
                    "section": section
                }
                tests.append(test_case)

    return tests


def delete_case(testrail_project, test_id):
    testrail_project.delete_case(test_id)


def add_case(testrail_project, test_suite, test_case):
    suite = testrail_project.get_suite_by_name(test_suite)
    section = testrail_project.get_section_by_name(
        suite_id=suite['id'], section_name=test_case["section"])
    testrail_project.add_case(section_id=section["id"], case=test_case)


def upload_tests_descriptions(testrail_project, tests):
    test_suite = TestRailSettings.tests_suite
    suite = testrail_project.get_suite_by_name(test_suite)

    # remove old sections and test cases
    old_sections = testrail_project.get_sections(suite_id=suite['id'])
    for section in old_sections:
        if section["parent_id"] is None:
            testrail_project.delete_section(section["id"])

    # create new groups
    for group in TEST_GROUPS:
        testrail_project.create_section(suite["id"], group)

    api_group = testrail_project.get_section_by_name(suite["id"], "API")
    for section in TEST_SECTIONS:
        testrail_project.create_section(suite["id"], section, api_group["id"])

    # add test cases to test suite in 100 parallel threads
    Parallel(n_jobs=100)(delayed(add_case)
                         (testrail_project, test_suite, test_case)
                         for test_case in tests)


def main():
    testrail_project = TestRailProject(
        url=TestRailSettings.url,
        user=TestRailSettings.user,
        password=TestRailSettings.password,
        project=TestRailSettings.project
    )

    testrail_milestone = testrail_project.get_milestone_by_name(
        name=TestRailSettings.milestone)

    tests_descriptions = get_tests_descriptions(
        milestone_id=testrail_milestone['id'],
        tests_include=TestRailSettings.tests_include,
        tests_exclude=TestRailSettings.tests_exclude
    )

    upload_tests_descriptions(testrail_project=testrail_project,
                              tests=tests_descriptions)


if __name__ == '__main__':
    main()