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

# Copyright (C) 2010-2019 RhodeCode GmbH
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License, version 3
# (only), as published by the Free Software Foundation.
#
# 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 Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
# This program is dual-licensed. If you wish to learn more about the
# RhodeCode Enterprise Edition, including its added features, Support services,
# and proprietary license terms, please see https://rhodecode.com/licenses/

import pytest

from rhodecode.lib.vcs import nodes
from rhodecode.lib.vcs.backends.base import EmptyCommit
from rhodecode.tests.fixture import Fixture
from rhodecode.tests.utils import commit_change

fixture = Fixture()


def route_path(name, params=None, **kwargs):
    import urllib

    base_url = {
        'repo_compare_select': '/{repo_name}/compare',
        'repo_compare': '/{repo_name}/compare/{source_ref_type}@{source_ref}...{target_ref_type}@{target_ref}',
    }[name].format(**kwargs)

    if params:
        base_url = '{}?{}'.format(base_url, urllib.urlencode(params))
    return base_url


@pytest.mark.usefixtures("autologin_user", "app")
class TestSideBySideDiff(object):

    def test_diff_sidebyside_single_commit(self, app, backend):
        commit_id_range = {
            'hg': {
                'commits': ['25d7e49c18b159446cadfa506a5cf8ad1cb04067',
                            '603d6c72c46d953420c89d36372f08d9f305f5dd'],
                'changes': '21 files changed: 943 inserted, 288 deleted'
            },
            'git': {
                'commits': ['6fc9270775aaf5544c1deb014f4ddd60c952fcbb',
                            '03fa803d7e9fb14daa9a3089e0d1494eda75d986'],
                'changes': '21 files changed: 943 inserted, 288 deleted'
            },

            'svn': {
                'commits': ['336',
                            '337'],
                'changes': '21 files changed: 943 inserted, 288 deleted'
            },
        }

        commit_info = commit_id_range[backend.alias]
        commit2, commit1 = commit_info['commits']
        file_changes = commit_info['changes']

        response = self.app.get(route_path(
            'repo_compare',
            repo_name=backend.repo_name,
            source_ref_type='rev',
            source_ref=commit2,
            target_repo=backend.repo_name,
            target_ref_type='rev',
            target_ref=commit1,
            params=dict(target_repo=backend.repo_name, diffmode='sidebyside')
        ))

        response.mustcontain(file_changes)
        response.mustcontain('Expand 1 commit')

    def test_diff_sidebyside_two_commits(self, app, backend):
        commit_id_range = {
            'hg': {
                'commits': ['4fdd71e9427417b2e904e0464c634fdee85ec5a7',
                            '603d6c72c46d953420c89d36372f08d9f305f5dd'],
                'changes': '32 files changed: 1165 inserted, 308 deleted'
            },
            'git': {
                'commits': ['f5fbf9cfd5f1f1be146f6d3b38bcd791a7480c13',
                            '03fa803d7e9fb14daa9a3089e0d1494eda75d986'],
                'changes': '32 files changed: 1165 inserted, 308 deleted'
            },

            'svn': {
                'commits': ['335',
                            '337'],
                'changes': '32 files changed: 1179 inserted, 310 deleted'
            },
        }

        commit_info = commit_id_range[backend.alias]
        commit2, commit1 = commit_info['commits']
        file_changes = commit_info['changes']

        response = self.app.get(route_path(
            'repo_compare',
            repo_name=backend.repo_name,
            source_ref_type='rev',
            source_ref=commit2,
            target_repo=backend.repo_name,
            target_ref_type='rev',
            target_ref=commit1,
            params=dict(target_repo=backend.repo_name, diffmode='sidebyside')
        ))

        response.mustcontain(file_changes)
        response.mustcontain('Expand 2 commits')

    @pytest.mark.xfail(reason='GIT does not handle empty commit compare correct (missing 1 commit)')
    def test_diff_side_by_side_from_0_commit(self, app, backend, backend_stub):
        f_path = 'test_sidebyside_file.py'
        commit1_content = 'content-25d7e49c18b159446c\n'
        commit2_content = 'content-603d6c72c46d953420\n'
        repo = backend.create_repo()

        commit1 = commit_change(
            repo.repo_name, filename=f_path, content=commit1_content,
            message='A', vcs_type=backend.alias, parent=None, newfile=True)

        commit2 = commit_change(
            repo.repo_name, filename=f_path, content=commit2_content,
            message='B, child of A', vcs_type=backend.alias, parent=commit1)

        response = self.app.get(route_path(
            'repo_compare',
            repo_name=repo.repo_name,
            source_ref_type='rev',
            source_ref=EmptyCommit().raw_id,
            target_ref_type='rev',
            target_ref=commit2.raw_id,
            params=dict(diffmode='sidebyside')
        ))

        response.mustcontain('Expand 2 commits')
        response.mustcontain('123 file changed')

        response.mustcontain(
            'r%s:%s...r%s:%s' % (
                commit1.idx, commit1.short_id, commit2.idx, commit2.short_id))

        response.mustcontain('<strong>{}</strong>'.format(f_path))

    @pytest.mark.xfail(reason='GIT does not handle empty commit compare correct (missing 1 commit)')
    def test_diff_side_by_side_from_0_commit_with_file_filter(self, app, backend, backend_stub):
        f_path = 'test_sidebyside_file.py'
        commit1_content = 'content-25d7e49c18b159446c\n'
        commit2_content = 'content-603d6c72c46d953420\n'
        repo = backend.create_repo()

        commit1 = commit_change(
            repo.repo_name, filename=f_path, content=commit1_content,
            message='A', vcs_type=backend.alias, parent=None, newfile=True)

        commit2 = commit_change(
            repo.repo_name, filename=f_path, content=commit2_content,
            message='B, child of A', vcs_type=backend.alias, parent=commit1)

        response = self.app.get(route_path(
            'repo_compare',
            repo_name=repo.repo_name,
            source_ref_type='rev',
            source_ref=EmptyCommit().raw_id,
            target_ref_type='rev',
            target_ref=commit2.raw_id,
            params=dict(f_path=f_path, target_repo=repo.repo_name, diffmode='sidebyside')
        ))

        response.mustcontain('Expand 2 commits')
        response.mustcontain('1 file changed')

        response.mustcontain(
            'r%s:%s...r%s:%s' % (
                commit1.idx, commit1.short_id, commit2.idx, commit2.short_id))

        response.mustcontain('<strong>{}</strong>'.format(f_path))

    def test_diff_side_by_side_with_empty_file(self, app, backend, backend_stub):
        commits = [
            {'message': 'First commit'},
            {'message': 'Second commit'},
            {'message': 'Commit with binary',
             'added': [nodes.FileNode('file.empty', content='')]},
        ]
        f_path = 'file.empty'
        repo = backend.create_repo(commits=commits)
        commit1 = repo.get_commit(commit_idx=0)
        commit2 = repo.get_commit(commit_idx=1)
        commit3 = repo.get_commit(commit_idx=2)

        response = self.app.get(route_path(
            'repo_compare',
            repo_name=repo.repo_name,
            source_ref_type='rev',
            source_ref=commit1.raw_id,
            target_ref_type='rev',
            target_ref=commit3.raw_id,
            params=dict(f_path=f_path, target_repo=repo.repo_name, diffmode='sidebyside')
        ))

        response.mustcontain('Expand 2 commits')
        response.mustcontain('1 file changed')

        response.mustcontain(
            'r%s:%s...r%s:%s' % (
                commit2.idx, commit2.short_id, commit3.idx, commit3.short_id))

        response.mustcontain('<strong>{}</strong>'.format(f_path))

    def test_diff_sidebyside_two_commits_with_file_filter(self, app, backend):
        commit_id_range = {
            'hg': {
                'commits': ['4fdd71e9427417b2e904e0464c634fdee85ec5a7',
                            '603d6c72c46d953420c89d36372f08d9f305f5dd'],
                'changes': '1 file changed: 3 inserted, 3 deleted'
            },
            'git': {
                'commits': ['f5fbf9cfd5f1f1be146f6d3b38bcd791a7480c13',
                            '03fa803d7e9fb14daa9a3089e0d1494eda75d986'],
                'changes': '1 file changed: 3 inserted, 3 deleted'
            },

            'svn': {
                'commits': ['335',
                            '337'],
                'changes': '1 file changed: 3 inserted, 3 deleted'
            },
        }
        f_path = 'docs/conf.py'

        commit_info = commit_id_range[backend.alias]
        commit2, commit1 = commit_info['commits']
        file_changes = commit_info['changes']

        response = self.app.get(route_path(
            'repo_compare',
            repo_name=backend.repo_name,
            source_ref_type='rev',
            source_ref=commit2,
            target_ref_type='rev',
            target_ref=commit1,
            params=dict(f_path=f_path, target_repo=backend.repo_name, diffmode='sidebyside')
        ))

        response.mustcontain('Expand 2 commits')
        response.mustcontain(file_changes)