#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright (C) 2015 GNS3 Technologies Inc.
#
# 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 uuid
import json
import pytest
import aiohttp
import zipfile
from unittest.mock import MagicMock
from tests.utils import AsyncioMagicMock
from unittest.mock import patch
from uuid import uuid4

from gns3server.controller.project import Project
from gns3server.config import Config


@pytest.fixture
def project(controller):
    return Project(controller=controller, name="Test")


@pytest.fixture
def node(controller, project, async_run):
    compute = MagicMock()
    compute.id = "local"

    response = MagicMock()
    response.json = {"console": 2048}
    compute.post = AsyncioMagicMock(return_value=response)

    node = async_run(project.add_node(compute, "test", None, node_type="vpcs", properties={"startup_config": "test.cfg"}))
    return node


def test_affect_uuid():
    p = Project(name="Test")
    assert len(p.id) == 36

    p = Project(project_id='00010203-0405-0607-0809-0a0b0c0d0e0f', name="Test 2")
    assert p.id == '00010203-0405-0607-0809-0a0b0c0d0e0f'


def test_json(tmpdir):
    p = Project(name="Test")
    assert p.__json__() == {"name": "Test", "project_id": p.id, "path": p.path, "status": "opened", "filename": "Test.gns3"}


def test_path(tmpdir):

    directory = Config.instance().get_section_config("Server").get("projects_path")

    with patch("gns3server.utils.path.get_default_project_directory", return_value=directory):
        p = Project(project_id=str(uuid4()), name="Test")
        assert p.path == os.path.join(directory, p.id)
        assert os.path.exists(os.path.join(directory, p.id))


def test_path_exist(tmpdir):
    """
    Should raise an error when you try to owerwrite
    an existing project
    """
    os.makedirs(str(tmpdir / "demo"))
    with pytest.raises(aiohttp.web.HTTPForbidden):
        p = Project(name="Test", path=str(tmpdir / "demo"))


def test_init_path(tmpdir):

    p = Project(path=str(tmpdir), project_id=str(uuid4()), name="Test")
    assert p.path == str(tmpdir)


def test_changing_path_with_quote_not_allowed(tmpdir):
    with pytest.raises(aiohttp.web.HTTPForbidden):
        p = Project(project_id=str(uuid4()), name="Test")
        p.path = str(tmpdir / "project\"53")


def test_captures_directory(tmpdir):
    p = Project(path=str(tmpdir / "capturestest"), name="Test")
    assert p.captures_directory == str(tmpdir / "capturestest" / "project-files" / "captures")
    assert os.path.exists(p.captures_directory)


def test_add_node_local(async_run, controller):
    """
    For a local server we send the project path
    """
    compute = MagicMock()
    compute.id = "local"
    project = Project(controller=controller, name="Test")
    controller._notification = MagicMock()

    response = MagicMock()
    response.json = {"console": 2048}
    compute.post = AsyncioMagicMock(return_value=response)

    node = async_run(project.add_node(compute, "test", None, node_type="vpcs", properties={"startup_config": "test.cfg"}))
    assert node.id in project._nodes

    compute.post.assert_any_call('/projects', data={
        "name": project._name,
        "project_id": project._id,
        "path": project._path
    })
    compute.post.assert_any_call('/projects/{}/vpcs/nodes'.format(project.id),
                                 data={'node_id': node.id,
                                       'startup_config': 'test.cfg',
                                       'name': 'test'})
    assert compute in project._project_created_on_compute
    controller.notification.emit.assert_any_call("node.created", node.__json__())


def test_add_node_non_local(async_run, controller):
    """
    For a non local server we do not send the project path
    """
    compute = MagicMock()
    compute.id = "remote"
    project = Project(controller=controller, name="Test")
    controller._notification = MagicMock()

    response = MagicMock()
    response.json = {"console": 2048}
    compute.post = AsyncioMagicMock(return_value=response)

    node = async_run(project.add_node(compute, "test", None, node_type="vpcs", properties={"startup_config": "test.cfg"}))

    compute.post.assert_any_call('/projects', data={
        "name": project._name,
        "project_id": project._id
    })
    compute.post.assert_any_call('/projects/{}/vpcs/nodes'.format(project.id),
                                 data={'node_id': node.id,
                                       'startup_config': 'test.cfg',
                                       'name': 'test'})
    assert compute in project._project_created_on_compute
    controller.notification.emit.assert_any_call("node.created", node.__json__())


def test_delete_node(async_run, controller):
    """
    For a local server we send the project path
    """
    compute = MagicMock()
    project = Project(controller=controller, name="Test")
    controller._notification = MagicMock()

    response = MagicMock()
    response.json = {"console": 2048}
    compute.post = AsyncioMagicMock(return_value=response)

    node = async_run(project.add_node(compute, "test", None, node_type="vpcs", properties={"startup_config": "test.cfg"}))
    assert node.id in project._nodes
    async_run(project.delete_node(node.id))
    assert node.id not in project._nodes

    compute.delete.assert_any_call('/projects/{}/vpcs/nodes/{}'.format(project.id, node.id))
    controller.notification.emit.assert_any_call("node.deleted", node.__json__())


def test_delete_node_delete_link(async_run, controller):
    """
    Delete a node delete all the node connected
    """
    compute = MagicMock()
    project = Project(controller=controller, name="Test")
    controller._notification = MagicMock()

    response = MagicMock()
    response.json = {"console": 2048}
    compute.post = AsyncioMagicMock(return_value=response)

    node = async_run(project.add_node(compute, "test", None, node_type="vpcs", properties={"startup_config": "test.cfg"}))

    link = async_run(project.add_link())
    async_run(link.add_node(node, 0, 0))

    async_run(project.delete_node(node.id))
    assert node.id not in project._nodes
    assert link.id not in project._links

    compute.delete.assert_any_call('/projects/{}/vpcs/nodes/{}'.format(project.id, node.id))
    controller.notification.emit.assert_any_call("node.deleted", node.__json__())
    controller.notification.emit.assert_any_call("link.deleted", link.__json__())


def test_get_node(async_run, controller):
    compute = MagicMock()
    project = Project(controller=controller, name="Test")

    response = MagicMock()
    response.json = {"console": 2048}
    compute.post = AsyncioMagicMock(return_value=response)

    vm = async_run(project.add_node(compute, "test", None, node_type="vpcs", properties={"startup_config": "test.cfg"}))
    assert project.get_node(vm.id) == vm

    with pytest.raises(aiohttp.web_exceptions.HTTPNotFound):
        project.get_node("test")

    # Raise an error if the project is not opened
    async_run(project.close())
    with pytest.raises(aiohttp.web.HTTPForbidden):
        project.get_node(vm.id)


def test_addLink(async_run, project, controller):
    compute = MagicMock()

    response = MagicMock()
    response.json = {"console": 2048}
    compute.post = AsyncioMagicMock(return_value=response)

    vm1 = async_run(project.add_node(compute, "test1", None, node_type="vpcs", properties={"startup_config": "test.cfg"}))
    vm2 = async_run(project.add_node(compute, "test2", None, node_type="vpcs", properties={"startup_config": "test.cfg"}))
    controller._notification = MagicMock()
    link = async_run(project.add_link())
    async_run(link.add_node(vm1, 3, 1))
    async_run(link.add_node(vm2, 4, 2))
    assert len(link._nodes) == 2
    controller.notification.emit.assert_any_call("link.created", link.__json__())


def test_getLink(async_run, project):
    compute = MagicMock()

    response = MagicMock()
    response.json = {"console": 2048}
    compute.post = AsyncioMagicMock(return_value=response)

    link = async_run(project.add_link())
    assert project.get_link(link.id) == link

    with pytest.raises(aiohttp.web_exceptions.HTTPNotFound):
        project.get_link("test")


def test_deleteLink(async_run, project, controller):
    compute = MagicMock()

    response = MagicMock()
    response.json = {"console": 2048}
    compute.post = AsyncioMagicMock(return_value=response)

    assert len(project._links) == 0
    link = async_run(project.add_link())
    assert len(project._links) == 1
    controller._notification = MagicMock()
    async_run(project.delete_link(link.id))
    controller.notification.emit.assert_any_call("link.deleted", link.__json__())
    assert len(project._links) == 0


def test_addDrawing(async_run, project, controller):
    controller.notification.emit = MagicMock()

    drawing = async_run(project.add_drawing(None, svg="<svg></svg>"))
    assert len(project._drawings) == 1
    controller.notification.emit.assert_any_call("drawing.created", drawing.__json__())


def test_getDrawing(async_run, project):
    drawing = async_run(project.add_drawing(None))
    assert project.get_drawing(drawing.id) == drawing

    with pytest.raises(aiohttp.web_exceptions.HTTPNotFound):
        project.get_drawing("test")


def test_deleteDrawing(async_run, project, controller):
    assert len(project._drawings) == 0
    drawing = async_run(project.add_drawing())
    assert len(project._drawings) == 1
    controller._notification = MagicMock()
    async_run(project.delete_drawing(drawing.id))
    controller.notification.emit.assert_any_call("drawing.deleted", drawing.__json__())
    assert len(project._drawings) == 0


def test_cleanPictures(async_run, project, controller):
    """
    When a project is close old pictures should be removed
    """

    drawing = async_run(project.add_drawing())
    drawing._svg = "test.png"
    open(os.path.join(project.pictures_directory, "test.png"), "w+").close()
    open(os.path.join(project.pictures_directory, "test2.png"), "w+").close()
    async_run(project.close())
    assert os.path.exists(os.path.join(project.pictures_directory, "test.png"))
    assert not os.path.exists(os.path.join(project.pictures_directory, "test2.png"))


def test_delete(async_run, project, controller):
    assert os.path.exists(project.path)
    async_run(project.delete())
    assert not os.path.exists(project.path)


def test_dump():
    directory = Config.instance().get_section_config("Server").get("projects_path")

    with patch("gns3server.utils.path.get_default_project_directory", return_value=directory):
        p = Project(project_id='00010203-0405-0607-0809-0a0b0c0d0e0f', name="Test")
        p.dump()
        with open(os.path.join(directory, p.id, "Test.gns3")) as f:
            content = f.read()
            assert "00010203-0405-0607-0809-0a0b0c0d0e0f" in content


def test_open_close(async_run, controller):
    project = Project(controller=controller, status="closed", name="Test")
    assert project.status == "closed"
    async_run(project.open())
    assert project.status == "opened"
    async_run(project.close())
    assert project.status == "closed"


def test_is_running(project, async_run, node):
    """
    If a node is started or paused return True
    """

    assert project.is_running() is False
    node._status = "started"
    assert project.is_running() is True


def test_duplicate(project, async_run, controller):
    """
    Duplicate a project, the node should remain on the remote server
    if they were on remote server
    """
    compute = MagicMock()
    compute.id = "remote"
    compute.list_files = AsyncioMagicMock(return_value=[])
    controller._computes["remote"] = compute

    response = MagicMock()
    response.json = {"console": 2048}
    compute.post = AsyncioMagicMock(return_value=response)

    remote_vpcs = async_run(project.add_node(compute, "test", None, node_type="vpcs", properties={"startup_config": "test.cfg"}))

    # We allow node not allowed for standard import / export
    remote_virtualbox = async_run(project.add_node(compute, "test", None, node_type="virtualbox", properties={"startup_config": "test.cfg"}))

    new_project = async_run(project.duplicate(name="Hello"))
    assert new_project.id != project.id
    assert new_project.name == "Hello"

    async_run(new_project.open())

    assert new_project.get_node(remote_vpcs.id).compute.id == "remote"
    assert new_project.get_node(remote_virtualbox.id).compute.id == "remote"


def test_snapshots(project):
    """
    List the snapshots
    """
    os.makedirs(os.path.join(project.path, "snapshots"))
    open(os.path.join(project.path, "snapshots", "test1_260716_103713.gns3project"), "w+").close()
    project.reset()

    assert len(project.snapshots) == 1
    assert list(project.snapshots.values())[0].name == "test1"


def test_get_snapshot(project):
    os.makedirs(os.path.join(project.path, "snapshots"))
    open(os.path.join(project.path, "snapshots", "test1.gns3project"), "w+").close()
    project.reset()

    snapshot = list(project.snapshots.values())[0]
    assert project.get_snapshot(snapshot.id) == snapshot

    with pytest.raises(aiohttp.web_exceptions.HTTPNotFound):
        project.get_snapshot("BLU")


def test_delete_snapshot(project, async_run):
    os.makedirs(os.path.join(project.path, "snapshots"))
    open(os.path.join(project.path, "snapshots", "test1_260716_103713.gns3project"), "w+").close()
    project.reset()

    snapshot = list(project.snapshots.values())[0]
    assert project.get_snapshot(snapshot.id) == snapshot

    async_run(project.delete_snapshot(snapshot.id))

    with pytest.raises(aiohttp.web_exceptions.HTTPNotFound):
        project.get_snapshot(snapshot.id)

    assert not os.path.exists(os.path.join(project.path, "snapshots", "test1.gns3project"))


def test_snapshot(project, async_run):
    """
    Create a snapshot
    """
    assert len(project.snapshots) == 0

    snapshot = async_run(project.snapshot("test1"))
    assert snapshot.name == "test1"

    assert len(project.snapshots) == 1
    assert list(project.snapshots.values())[0].name == "test1"

    # Raise a conflict if name is already use
    with pytest.raises(aiohttp.web_exceptions.HTTPConflict):
        snapshot = async_run(project.snapshot("test1"))