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

"""
 (c) 2015-2017 - Copyright Red Hat Inc

 Authors:
   Pierre-Yves Chibon <pingou@pingoured.fr>

"""

from __future__ import unicode_literals, absolute_import

import json
import unittest
import shutil
import sys
import os

import mock
import pygit2
from mock import patch

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

import pagure.docs_server
import pagure.lib.query
import tests
from pagure.lib.repo import PagureRepo


class PagureFlaskDocstests(tests.SimplePagureTest):
    """Tests for flask docs of pagure"""

    def setUp(self):
        """Set up the environnment, ran before every tests."""
        super(PagureFlaskDocstests, self).setUp()

        pagure.docs_server.APP.config["TESTING"] = True
        pagure.docs_server.SESSION = self.session

        pagure.docs_server.APP.config["GIT_FOLDER"] = os.path.join(
            self.path, "repos"
        )
        pagure.docs_server.APP.config["TICKETS_FOLDER"] = os.path.join(
            self.path, "tickets"
        )
        pagure.docs_server.APP.config["DOCS_FOLDER"] = os.path.join(
            self.path, "repos", "docs"
        )
        self.app = pagure.docs_server.APP.test_client()

    def _set_up_doc(self):
        # forked doc repo
        docrepo = os.path.join(self.path, "repos", "docs", "test", "test.git")
        repo = pygit2.init_repository(docrepo)

        # Create files in that git repo
        with open(os.path.join(docrepo, "sources"), "w") as stream:
            stream.write("foo\n bar")
        repo.index.add("sources")
        repo.index.write()

        folderpart = os.path.join(docrepo, "folder1", "folder2")
        os.makedirs(folderpart)
        with open(os.path.join(folderpart, "test_file"), "w") as stream:
            stream.write("row1\nrow2\nrow3")
        repo.index.add(os.path.join("folder1", "folder2", "test_file"))
        repo.index.write()

        # Commits the files added
        tree = repo.index.write_tree()
        author = pygit2.Signature("Alice Author", "alice@authors.tld")
        committer = pygit2.Signature("Cecil Committer", "cecil@committers.tld")
        repo.create_commit(
            "refs/heads/master",  # the name of the reference to update
            author,
            committer,
            "Add test files and folder",
            # binary string representing the tree object ID
            tree,
            # list of binary strings representing parents of the new commit
            [],
        )

        # Push the changes to the bare repo
        remote = repo.remotes.create(
            "origin", os.path.join(self.path, "repos", "docs", "test.git")
        )

        PagureRepo.push(remote, "refs/heads/master:refs/heads/master")

        # Turn on the docs project since it's off by default
        repo = pagure.lib.query.get_authorized_project(self.session, "test")
        repo.settings = {"project_documentation": True}
        self.session.add(repo)
        self.session.commit()

    def test_view_docs_no_project(self):
        """Test the view_docs endpoint with no project."""

        output = self.app.get("/foo/docs")
        self.assertEqual(output.status_code, 404)

    def test_view_docs_project_no_git(self):
        """Test the view_docs endpoint with a project that has no
        corresponding git repo.
        """
        tests.create_projects(self.session)

        # Turn on the docs project since it's off by default
        repo = pagure.lib.query.get_authorized_project(self.session, "test")
        repo.settings = {"project_documentation": True}
        self.session.add(repo)
        self.session.commit()

        output = self.app.get("/test/docs", follow_redirects=True)
        self.assertEqual(output.status_code, 404)
        self.assertTrue(
            "<p>Documentation not found</p>" in output.get_data(as_text=True)
        )

        output = self.app.get("/test", follow_redirects=True)
        self.assertEqual(output.status_code, 404)
        self.assertTrue(
            "<p>Documentation not found</p>" in output.get_data(as_text=True)
        )

    def test_view_docs_project_no_docs(self):
        """Test the view_docs endpoint with a project that disabled the
        docs.
        """
        tests.create_projects(self.session)
        repo = pagure.lib.query.get_authorized_project(self.session, "test")
        tests.create_projects_git(os.path.join(self.path, "repos", "docs"))

        output = self.app.get("/test/docs")
        self.assertEqual(output.status_code, 404)

        repo.settings = {"project_documentation": False}
        self.session.add(repo)
        self.session.commit()

        output = self.app.get("/test/docs", follow_redirects=True)
        self.assertEqual(output.status_code, 404)

    def test_view_docs_empty_repo(self):
        """Test the view_docs endpoint when the git repo is empty."""
        tests.create_projects(self.session)
        repo = pygit2.init_repository(
            os.path.join(self.path, "repos", "docs", "test.git"), bare=True
        )

        # Turn on the docs project since it's off by default
        repo = pagure.lib.query.get_authorized_project(self.session, "test")
        repo.settings = {"project_documentation": True}
        self.session.add(repo)
        self.session.commit()

        output = self.app.get("/test/docs")
        self.assertEqual(output.status_code, 404)
        self.assertIn(
            "<p>No content found in the repository, you may want to read "
            'the <a href="https://docs.pagure.org/pagure/usage/'
            'using_doc.html">Using the doc repository of your project</a> '
            "documentation.</p>",
            output.get_data(as_text=True),
        )

    def test_view_docs(self):
        """Test the view_docs endpoint."""
        tests.create_projects(self.session)
        repo = pygit2.init_repository(
            os.path.join(self.path, "repos", "docs", "test.git"), bare=True
        )

        output = self.app.get("/test/docs")
        self.assertEqual(output.status_code, 404)

        self._set_up_doc()

        # Now check the UI

        output = self.app.get("/test/docs")
        self.assertEqual(output.status_code, 404)

        output = self.app.get("/test/sources")
        self.assertEqual(output.status_code, 200)
        self.assertEqual("<pre>foo\n bar</pre>", output.get_data(as_text=True))

        output = self.app.get("/test/folder1/folder2")
        self.assertEqual(output.status_code, 200)
        self.assertTrue(
            '<li><ul><a href="test_file">test_file</a></ul></li>'
            in output.get_data(as_text=True)
        )

        output = self.app.get("/test/folder1/folder2/test_file")
        self.assertEqual(output.status_code, 200)
        self.assertEqual(
            "<pre>row1\nrow2\nrow3</pre>", output.get_data(as_text=True)
        )

        output = self.app.get("/test/folder1")
        self.assertEqual(output.status_code, 200)
        self.assertTrue(
            '<li><ul><a href="folder2/">folder2/</a></ul></li>'
            in output.get_data(as_text=True)
        )

        output = self.app.get("/test/folder1/foo")
        self.assertEqual(output.status_code, 404)

        output = self.app.get("/test/folder1/foo/folder2")
        self.assertEqual(output.status_code, 404)

    @mock.patch(
        "pagure.lib.encoding_utils.decode",
        mock.MagicMock(side_effect=pagure.exceptions.PagureEncodingException),
    )
    def test_view_docs_encoding_error(self):
        """Test viewing a file of which we cannot find the encoding."""
        tests.create_projects(self.session)
        repo = pygit2.init_repository(
            os.path.join(self.path, "repos", "docs", "test.git"), bare=True
        )

        output = self.app.get("/test/docs")
        self.assertEqual(output.status_code, 404)

        self._set_up_doc()

        output = self.app.get("/test/sources")
        self.assertEqual(output.status_code, 200)
        self.assertEqual("foo\n bar", output.get_data(as_text=True))

        output = self.app.get("/test/folder1")
        self.assertEqual(output.status_code, 200)
        self.assertTrue(
            '<li><ul><a href="folder2/">folder2/</a></ul></li>'
            in output.get_data(as_text=True)
        )

    @mock.patch(
        "pagure.lib.encoding_utils.decode", mock.MagicMock(side_effect=IOError)
    )
    def test_view_docs_unknown_error(self):
        """Test viewing a file of which we cannot find the encoding."""
        tests.create_projects(self.session)
        repo = pygit2.init_repository(
            os.path.join(self.path, "repos", "docs", "test.git"), bare=True
        )

        output = self.app.get("/test/docs")
        self.assertEqual(output.status_code, 404)

        self._set_up_doc()

        output = self.app.get("/test/sources")
        self.assertEqual(output.status_code, 500)

        output = self.app.get("/test/folder1")
        self.assertEqual(output.status_code, 200)


if __name__ == "__main__":
    unittest.main(verbosity=2)