# -*- coding: utf-8 -*-

"""

 (c) 2018 - Copyright Red Hat Inc

 Authors:

   Pierre-Yves Chibon <pingou@pingoured.fr></pingou@pingoured.fr>

"""

from __future__ import unicode_literals, absolute_import

import datetime

import unittest

import shutil

import sys

import os

import json

from mock import patch, MagicMock

sys.path.insert(

    0, os.path.join(os.path.dirname(os.path.abspath(__file__)), "..")

)

import pagure.lib.query

import pagure.lib.tasks

import tests

class PagureRebasetests(tests.Modeltests):

    """ Tests rebasing pull-request in pagure """

    maxDiff = None

    @patch("pagure.lib.notify.send_email", MagicMock(return_value=True))

    def setUp(self):

        """ Set up the environnment, ran before every tests. """

        super(PagureRebasetests, self).setUp()

        pagure.config.config["REQUESTS_FOLDER"] = None

        tests.create_projects(self.session)

        tests.create_projects_git(os.path.join(self.path, "repos"), bare=True)

        tests.create_projects_git(

            os.path.join(self.path, "requests"), bare=True

        )

        tests.add_content_to_git(

            os.path.join(self.path, "repos", "test.git"),

            branch="master",

            content="foobarbaz",

            filename="testfile",

        )

        tests.add_content_to_git(

            os.path.join(self.path, "repos", "test.git"),

            branch="test",

            content="foobar",

            filename="sources",

        )

        tests.add_readme_git_repo(os.path.join(self.path, "repos", "test.git"))

        # Create a PR for these changes

        project = pagure.lib.query.get_authorized_project(self.session, "test")

        req = pagure.lib.query.new_pull_request(

            session=self.session,

            repo_from=project,

            branch_from="test",

            repo_to=project,

            branch_to="master",

            title="PR from the test branch",

            user="pingou",

        )

        self.session.commit()

        self.assertEqual(req.id, 1)

        self.assertEqual(req.title, "PR from the test branch")

        self.project = pagure.lib.query.get_authorized_project(

            self.session, "test"

        )

        self.assertEqual(len(project.requests), 1)

        self.request = self.project.requests[0]

    def test_merge_status_merge(self):

        """ Test that the PR can be merged with a merge commit. """

        user = tests.FakeUser(username="pingou")

        with tests.user_set(self.app.application, user):

            data = {

                "requestid": self.request.uid,

                "csrf_token": self.get_csrf(),

            }

            output = self.app.post("/pv/pull-request/merge", data=data)

            self.assertEqual(output.status_code, 200)

            data = json.loads(output.get_data(as_text=True))

            self.assertEqual(

                data,

                {

                    "code": "MERGE",

                    "message": "The pull-request can be merged with a "

                    "merge commit",

                    "short_code": "With merge",

                },

            )

    def test_merge_status_needsrebase(self):

        """ Test that the PR is marked as needing a rebase if the project

        disables non-fast-forward merges. """

        self.project = pagure.lib.query.get_authorized_project(

            self.session, "test"

        )

        settings = self.project.settings

        settings["disable_non_fast-forward_merges"] = True

        self.project.settings = settings

        self.session.add(self.project)

        self.session.commit()

        user = tests.FakeUser(username="pingou")

        with tests.user_set(self.app.application, user):

            data = {

                "requestid": self.request.uid,

                "csrf_token": self.get_csrf(),

            }

            output = self.app.post("/pv/pull-request/merge", data=data)

            self.assertEqual(output.status_code, 200)

            data = json.loads(output.get_data(as_text=True))

            self.assertEqual(

                data,

                {

                    "code": "NEEDSREBASE",

                    "message": "The pull-request must be rebased before "

                    "merging",

                    "short_code": "Needs rebase",

                },

            )

    def test_rebase_task(self):

        """ Test the rebase PR task and its outcome. """

        pagure.lib.tasks.rebase_pull_request(

            "test",

            namespace=None,

            user=None,

            requestid=self.request.id,

            user_rebaser="pingou",

        )

        user = tests.FakeUser(username="pingou")

        with tests.user_set(self.app.application, user):

            data = {

                "requestid": self.request.uid,

                "csrf_token": self.get_csrf(),

            }

            output = self.app.post("/pv/pull-request/merge", data=data)

            self.assertEqual(output.status_code, 200)

            data = json.loads(output.get_data(as_text=True))

            self.assertEqual(

                data,

                {

                    "code": "FFORWARD",

                    "message": "The pull-request can be merged and "

                    "fast-forwarded",

                    "short_code": "Ok",

                },

            )

    def test_rebase_api_ui_logged_in(self):

        """ Test the rebase PR API endpoint when logged in from the UI and

        its outcome. """

        user = tests.FakeUser(username="pingou")

        with tests.user_set(self.app.application, user):

            # Get the merge status first so it's cached and can be refreshed

            csrf_token = self.get_csrf()

            data = {"requestid": self.request.uid, "csrf_token": csrf_token}

            output = self.app.post("/pv/pull-request/merge", data=data)

            self.assertEqual(output.status_code, 200)

            data = json.loads(output.get_data(as_text=True))

            self.assertEqual(

                data,

                {

                    "code": "MERGE",

                    "message": "The pull-request can be merged with "

                    "a merge commit",

                    "short_code": "With merge",

                },

            )

            output = self.app.post("/api/0/test/pull-request/1/rebase")

            self.assertEqual(output.status_code, 200)

            data = json.loads(output.get_data(as_text=True))

            self.assertEqual(data, {"message": "Pull-request rebased"})

            data = {"requestid": self.request.uid, "csrf_token": csrf_token}

            output = self.app.post("/pv/pull-request/merge", data=data)

            self.assertEqual(output.status_code, 200)

            data = json.loads(output.get_data(as_text=True))

            self.assertEqual(

                data,

                {

                    "code": "FFORWARD",

                    "message": "The pull-request can be merged and "

                    "fast-forwarded",

                    "short_code": "Ok",

                },

            )

            output = self.app.get("/test/pull-request/1")

            self.assertEqual(output.status_code, 200)

            output_text = output.get_data(as_text=True)

            self.assertIn("rebased onto", output_text)

            repo = pagure.lib.query._get_project(self.session, "test")

            self.assertEqual(

                repo.requests[0].comments[0].user.username, "pingou"

            )

    def test_rebase_api_ui_logged_in_different_user(self):

        """ Test the rebase PR API endpoint when logged in from the UI and

        its outcome. """

        # Add 'foo' to the project 'test' so 'foo' can rebase the PR

        repo = pagure.lib.query._get_project(self.session, "test")

        msg = pagure.lib.query.add_user_to_project(

            session=self.session, project=repo, new_user="foo", user="pingou"

        )

        self.session.commit()

        self.assertEqual(msg, "User added")

        user = tests.FakeUser(username="foo")

        with tests.user_set(self.app.application, user):

            # Get the merge status first so it's cached and can be refreshed

            csrf_token = self.get_csrf()

            data = {"requestid": self.request.uid, "csrf_token": csrf_token}

            output = self.app.post("/pv/pull-request/merge", data=data)

            self.assertEqual(output.status_code, 200)

            data = json.loads(output.get_data(as_text=True))

            self.assertEqual(

                data,

                {

                    "code": "MERGE",

                    "message": "The pull-request can be merged with "

                    "a merge commit",

                    "short_code": "With merge",

                },

            )

            output = self.app.post("/api/0/test/pull-request/1/rebase")

            self.assertEqual(output.status_code, 200)

            data = json.loads(output.get_data(as_text=True))

            self.assertEqual(data, {"message": "Pull-request rebased"})

            data = {"requestid": self.request.uid, "csrf_token": csrf_token}

            output = self.app.post("/pv/pull-request/merge", data=data)

            self.assertEqual(output.status_code, 200)

            data = json.loads(output.get_data(as_text=True))

            self.assertEqual(

                data,

                {

                    "code": "FFORWARD",

                    "message": "The pull-request can be merged and "

                    "fast-forwarded",

                    "short_code": "Ok",

                },

            )

            output = self.app.get("/test/pull-request/1")

            self.assertEqual(output.status_code, 200)

            output_text = output.get_data(as_text=True)

            self.assertIn("rebased onto", output_text)

            repo = pagure.lib.query._get_project(self.session, "test")

            self.assertEqual(repo.requests[0].comments[0].user.username, "foo")

    def test_rebase_api_api_logged_in(self):

        """ Test the rebase PR API endpoint when using an API token and

        its outcome. """

        tests.create_tokens(self.session)

        tests.create_tokens_acl(self.session)

        headers = {"Authorization": "token aaabbbcccddd"}

        output = self.app.post(

            "/api/0/test/pull-request/1/rebase", headers=headers

        )

        self.assertEqual(output.status_code, 200)

        data = json.loads(output.get_data(as_text=True))

        self.assertEqual(data, {"message": "Pull-request rebased"})

        user = tests.FakeUser(username="pingou")

        with tests.user_set(self.app.application, user):

            data = {

                "requestid": self.request.uid,

                "csrf_token": self.get_csrf(),

            }

            output = self.app.post("/pv/pull-request/merge", data=data)

            self.assertEqual(output.status_code, 200)

            data = json.loads(output.get_data(as_text=True))

            self.assertEqual(

                data,

                {

                    "code": "FFORWARD",

                    "message": "The pull-request can be merged and "

                    "fast-forwarded",

                    "short_code": "Ok",

                },

            )

    def test_rebase_api_conflicts(self):

        """ Test the rebase PR API endpoint when logged in from the UI and

        its outcome. """

        tests.add_content_to_git(

            os.path.join(self.path, "repos", "test.git"),

            branch="master",

            content="foobar baz",

        )

        user = tests.FakeUser(username="pingou")

        with tests.user_set(self.app.application, user):

            output = self.app.post("/api/0/test/pull-request/1/rebase")

            self.assertEqual(output.status_code, 400)

            data = json.loads(output.get_data(as_text=True))

            self.assertEqual(

                data,

                {

                    "error": "Did not manage to rebase this pull-request",

                    "error_code": "ENOCODE",

                },

            )

            data = {

                "requestid": self.request.uid,

                "csrf_token": self.get_csrf(),

            }

            output = self.app.post("/pv/pull-request/merge", data=data)

            self.assertEqual(output.status_code, 200)

            data = json.loads(output.get_data(as_text=True))

            self.assertEqual(

                data,

                {

                    "code": "CONFLICTS",

                    "message": "The pull-request cannot be merged due "

                    "to conflicts",

                    "short_code": "Conflicts",

                },

            )

    def test_rebase_api_api_logged_in_unknown_project(self):

        """ Test the rebase PR API endpoint when the project doesn't exist """

        tests.create_tokens(self.session)

        tests.create_tokens_acl(self.session)

        headers = {"Authorization": "token aaabbbcccddd"}

        output = self.app.post(

            "/api/0/unknown/pull-request/1/rebase", headers=headers

        )

        self.assertEqual(output.status_code, 404)

        data = json.loads(output.get_data(as_text=True))

        self.assertEqual(

            data, {"error": "Project not found", "error_code": "ENOPROJECT"}

        )

    def test_rebase_api_api_logged_in_unknown_pr(self):

        """ Test the rebase PR API endpoint when the PR doesn't exist """

        tests.create_tokens(self.session)

        tests.create_tokens_acl(self.session)

        headers = {"Authorization": "token aaabbbcccddd"}

        output = self.app.post(

            "/api/0/test/pull-request/404/rebase", headers=headers

        )

        self.assertEqual(output.status_code, 404)

        data = json.loads(output.get_data(as_text=True))

        self.assertEqual(

            data, {"error": "Pull-Request not found", "error_code": "ENOREQ"}

        )

    def test_rebase_api_api_logged_in_unknown_token(self):

        """ Test the rebase PR API endpoint with an invalid API token """

        tests.create_tokens(self.session)

        tests.create_tokens_acl(self.session)

        headers = {"Authorization": "token unknown"}

        output = self.app.post(

            "/api/0/test/pull-request/1/rebase", headers=headers

        )

        self.assertEqual(output.status_code, 401)

        data = json.loads(output.get_data(as_text=True))

        self.assertEqual(

            data,

            {

                "error": "Invalid or expired token. Please visit "

                "http://localhost.localdomain/settings#api-keys to get "

                "or renew your API token.",

                "error_code": "EINVALIDTOK",

                "errors": "Invalid token",

            },

        )

if __name__ == "__main__":

    unittest.main(verbosity=2)