import pytest
from pytest_httpx import HTTPXMock

from activities.models import Hashtag, Post, PostStates
from activities.models.post_types import QuestionData
from users.models import Identity, InboxMessage


@pytest.mark.django_db
def test_fetch_post(httpx_mock: HTTPXMock, config_system):
    """
    Tests that a post we don't have locally can be fetched by by_object_uri
    """
    httpx_mock.add_response(
        url="https://example.com/test-actor",
        json={
            "@context": [
                "https://www.w3.org/ns/activitystreams",
            ],
            "id": "https://example.com/test-actor",
            "type": "Person",
        },
    )
    httpx_mock.add_response(
        url="https://example.com/test-post",
        json={
            "@context": [
                "https://www.w3.org/ns/activitystreams",
            ],
            "id": "https://example.com/test-post",
            "type": "Note",
            "published": "2022-11-13T23:20:16Z",
            "url": "https://example.com/test-post",
            "attributedTo": "https://example.com/test-actor",
            "content": "BEEEEEES",
        },
    )
    # Fetch with a HTTP access
    post = Post.by_object_uri("https://example.com/test-post", fetch=True)
    assert post.content == "BEEEEEES"
    assert post.author.actor_uri == "https://example.com/test-actor"
    # Fetch again with a DB hit
    assert Post.by_object_uri("https://example.com/test-post").id == post.id


@pytest.mark.django_db
def test_post_create_edit(identity: Identity, config_system):
    """
    Tests that creating/editing a post works, and extracts mentions and hashtags.
    """
    post = Post.create_local(author=identity, content="Hello #world I am @test")
    assert post.hashtags == ["world"]
    assert list(post.mentions.all()) == [identity]

    post.edit_local(content="Now I like #hashtags")
    assert post.hashtags == ["hashtags"]
    assert list(post.mentions.all()) == []


@pytest.mark.django_db
def test_ensure_hashtag(identity: Identity, config_system, stator):
    """
    Tests that normal hashtags get a Hashtag object created, and a hashtag
    over our limit of 100 characters is truncated.
    """
    # Normal length hashtag
    post = Post.create_local(
        author=identity,
        content="Hello, #testtag",
    )
    stator.run_single_cycle()
    assert post.hashtags == ["testtag"]
    assert Hashtag.objects.filter(hashtag="testtag").exists()
    # Excessively long hashtag
    post = Post.create_local(
        author=identity,
        content="Hello, #thisisahashtagthatiswaytoolongandissignificantlyaboveourmaximumlimitofonehundredcharacterswhytheywouldbethislongidontknow",
    )
    stator.run_single_cycle()
    assert post.hashtags == [
        "thisisahashtagthatiswaytoolongandissignificantlyaboveourmaximumlimitofonehundredcharacterswhytheywou"
    ]
    assert Hashtag.objects.filter(
        hashtag="thisisahashtagthatiswaytoolongandissignificantlyaboveourmaximumlimitofonehundredcharacterswhytheywou"
    ).exists()


@pytest.mark.django_db
def test_linkify_mentions_remote(
    identity, identity2, remote_identity, remote_identity2
):
    """
    Tests that we can linkify post mentions properly for remote use
    """
    # Test a short username (remote)
    post = Post.objects.create(
        content="<p>Hello @test</p>",
        author=identity,
        local=True,
    )
    post.mentions.add(remote_identity)
    assert (
        post.safe_content_remote()
        == '<p>Hello <span class="h-card"><a href="https://remote.test/@test/" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>test</span></a></span></p>'
    )
    # Test a full username (local)
    post = Post.objects.create(
        content="<p>@test@example.com, welcome!</p>",
        author=identity,
        local=True,
    )
    post.mentions.add(identity)
    assert (
        post.safe_content_remote()
        == '<p><span class="h-card"><a href="https://example.com/@test/" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>test</span></a></span>, welcome!</p>'
    )
    # Test that they don't get touched without a mention
    post = Post.objects.create(
        content="<p>@test@example.com, welcome!</p>",
        author=identity,
        local=True,
    )
    assert post.safe_content_remote() == "<p>@test@example.com, welcome!</p>"

    # Test case insensitivity (remote)
    post = Post.objects.create(
        content="<p>Hey @TeSt</p>",
        author=identity,
        local=True,
    )
    post.mentions.add(remote_identity)
    assert (
        post.safe_content_remote()
        == '<p>Hey <span class="h-card"><a href="https://remote.test/@test/" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>TeSt</span></a></span></p>'
    )

    # Test trailing dot (remote)
    post = Post.objects.create(
        content="<p>Hey @test@remote.test.</p>",
        author=identity,
        local=True,
    )
    post.mentions.add(remote_identity)
    assert (
        post.safe_content_remote()
        == '<p>Hey <span class="h-card"><a href="https://remote.test/@test/" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>test</span></a></span>.</p>'
    )

    # Test that collapsing only applies to the first unique, short username
    post = Post.objects.create(
        content="<p>Hey @TeSt@remote.test and @test@remote2.test</p>",
        author=identity,
        local=True,
    )
    post.mentions.set([remote_identity, remote_identity2])
    assert post.safe_content_remote() == (
        '<p>Hey <span class="h-card"><a href="https://remote.test/@test/" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>TeSt</span></a></span> '
        'and <span class="h-card"><a href="https://remote2.test/@test/" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>test@remote2.test</span></a></span></p>'
    )

    post.content = "<p>Hey @TeSt, @Test@remote.test and @test</p>"
    assert post.safe_content_remote() == (
        '<p>Hey <span class="h-card"><a href="https://remote2.test/@test/" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>TeSt</span></a></span>, '
        '<span class="h-card"><a href="https://remote.test/@test/" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>Test@remote.test</span></a></span> '
        'and <span class="h-card"><a href="https://remote2.test/@test/" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>test</span></a></span></p>'
    )


@pytest.mark.django_db
def test_linkify_mentions_local(config_system, identity, identity2, remote_identity):
    """
    Tests that we can linkify post mentions properly for local use
    """
    # Test a short username (remote)
    post = Post.objects.create(
        content="<p>Hello @test</p>",
        author=identity,
        local=True,
    )
    post.mentions.add(remote_identity)
    assert (
        post.safe_content_local()
        == '<p>Hello <span class="h-card"><a href="https://remote.test/@test/" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>test</span></a></span></p>'
    )
    # Test a full username (local)
    post = Post.objects.create(
        content="<p>@test@example.com, welcome! @test@example2.com @test@example.com</p>",
        author=identity,
        local=True,
    )
    post.mentions.add(identity)
    post.mentions.add(identity2)
    assert post.safe_content_local() == (
        '<p><span class="h-card"><a href="/@test@example.com/" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>test</span></a></span>, welcome!'
        ' <span class="h-card"><a href="/@test@example2.com/" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>test@example2.com</span></a></span>'
        ' <span class="h-card"><a href="/@test@example.com/" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>test</span></a></span></p>'
    )
    # Test a full username (remote) with no <p>
    post = Post.objects.create(
        content="@test@remote.test hello!",
        author=identity,
        local=True,
    )
    post.mentions.add(remote_identity)
    assert (
        post.safe_content_local()
        == '<span class="h-card"><a href="https://remote.test/@test/" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>test</span></a></span> hello!'
    )
    # Test that they don't get touched without a mention
    post = Post.objects.create(
        content="<p>@test@example.com, welcome!</p>",
        author=identity,
        local=True,
    )
    assert post.safe_content_local() == "<p>@test@example.com, welcome!</p>"


@pytest.mark.django_db
def test_post_transitions(identity, stator):
    # Create post
    post = Post.objects.create(
        content="<p>Hello!</p>",
        author=identity,
        local=False,
        visibility=Post.Visibilities.mentioned,
    )
    # Test: | --> new --> fanned_out
    assert post.state == str(PostStates.new)
    stator.run_single_cycle()
    post = Post.objects.get(id=post.id)
    assert post.state == str(PostStates.fanned_out)

    # Test: fanned_out --> (forced) edited --> edited_fanned_out
    Post.transition_perform(post, PostStates.edited)
    stator.run_single_cycle()
    post = Post.objects.get(id=post.id)
    assert post.state == str(PostStates.edited_fanned_out)

    # Test: edited_fanned_out --> (forced) deleted --> deleted_fanned_out
    Post.transition_perform(post, PostStates.deleted)
    stator.run_single_cycle()
    post = Post.objects.get(id=post.id)
    assert post.state == str(PostStates.deleted_fanned_out)


@pytest.mark.django_db
def test_content_map(remote_identity):
    """
    Tests that post contentmap content also works
    """
    post = Post.by_ap(
        data={
            "id": "https://remote.test/posts/1/",
            "type": "Note",
            "content": "Hi World",
            "attributedTo": "https://remote.test/test-actor/",
            "published": "2022-12-23T10:50:54Z",
        },
        create=True,
    )
    assert post.content == "Hi World"

    post2 = Post.by_ap(
        data={
            "id": "https://remote.test/posts/2/",
            "type": "Note",
            "contentMap": {"und": "Hey World"},
            "attributedTo": "https://remote.test/test-actor/",
            "published": "2022-12-23T10:50:54Z",
        },
        create=True,
    )
    assert post2.content == "Hey World"

    post3 = Post.by_ap(
        data={
            "id": "https://remote.test/posts/3/",
            "type": "Note",
            "contentMap": {"en-gb": "Hello World"},
            "attributedTo": "https://remote.test/test-actor/",
            "published": "2022-12-23T10:50:54Z",
        },
        create=True,
    )
    assert post3.content == "Hello World"


@pytest.mark.django_db
def test_content_map_question(remote_identity: Identity):
    """
    Tests post contentmap for questions
    """
    post = Post.by_ap(
        data={
            "id": "https://remote.test/posts/1/",
            "type": "Question",
            "votersCount": 10,
            "closed": "2023-01-01T26:04:45Z",
            "content": "Test Question",
            "attributedTo": "https://remote.test/test-actor/",
            "published": "2022-12-23T10:50:54Z",
            "endTime": "2023-01-01T20:04:45Z",
            "oneOf": [
                {
                    "type": "Note",
                    "name": "Option 1",
                    "replies": {
                        "type": "Collection",
                        "totalItems": 6,
                    },
                },
                {
                    "type": "Note",
                    "name": "Option 2",
                    "replies": {
                        "type": "Collection",
                        "totalItems": 4,
                    },
                },
            ],
        },
        create=True,
    )
    assert post.content == "Test Question"
    assert isinstance(post.type_data, QuestionData)
    assert post.type_data.voter_count == 10

    # test the update case
    question_id = post.id

    post = Post.by_ap(
        data={
            "id": "https://remote.test/posts/1/",
            "type": "Question",
            "votersCount": 100,
            "closed": "2023-01-01T26:04:45Z",
            "content": "Test Question",
            "attributedTo": "https://remote.test/test-actor/",
            "published": "2022-12-23T10:50:54Z",
            "endTime": "2023-01-01T20:04:45Z",
            "oneOf": [
                {
                    "type": "Note",
                    "name": "Option 1",
                    "replies": {
                        "type": "Collection",
                        "totalItems": 60,
                    },
                },
                {
                    "type": "Note",
                    "name": "Option 2",
                    "replies": {
                        "type": "Collection",
                        "totalItems": 40,
                    },
                },
            ],
        },
        create=False,
        update=True,
    )
    assert isinstance(post.type_data, QuestionData)
    assert post.type_data.voter_count == 100
    assert post.id == question_id


@pytest.mark.django_db
@pytest.mark.parametrize("delete_type", ["note", "tombstone", "ref"])
def test_inbound_posts(
    remote_identity: Identity,
    stator,
    delete_type: bool,
):
    """
    Ensures that a remote post can arrive via inbox message, be edited, and be
    deleted.
    """
    # Create an inbound new post message
    message = {
        "id": "test",
        "type": "Create",
        "actor": remote_identity.actor_uri,
        "object": {
            "id": "https://remote.test/test-post",
            "type": "Note",
            "published": "2022-11-13T23:20:16Z",
            "attributedTo": remote_identity.actor_uri,
            "content": "post version one",
        },
    }
    InboxMessage.objects.create(message=message)

    # Run stator and ensure that made the post
    stator.run_single_cycle()
    post = Post.objects.get(object_uri="https://remote.test/test-post")
    assert post.content == "post version one"
    assert post.published.day == 13
    assert post.url == "https://remote.test/test-post"

    # Create an inbound post edited message
    message = {
        "id": "test",
        "type": "Update",
        "actor": remote_identity.actor_uri,
        "object": {
            "id": "https://remote.test/test-post",
            "type": "Note",
            "published": "2022-11-13T23:20:16Z",
            "updated": "2022-11-14T23:20:16Z",
            "url": "https://remote.test/test-post/display",
            "attributedTo": remote_identity.actor_uri,
            "content": "post version two",
        },
    }
    InboxMessage.objects.create(message=message)

    # Run stator and ensure that edited the post
    stator.run_single_cycle()
    post = Post.objects.get(object_uri="https://remote.test/test-post")
    assert post.content == "post version two"
    assert post.edited.day == 14
    assert post.url == "https://remote.test/test-post/display"

    # Create an inbound post deleted message
    if delete_type == "ref":
        message = {
            "id": "test",
            "type": "Delete",
            "actor": remote_identity.actor_uri,
            "object": "https://remote.test/test-post",
        }
    elif delete_type == "tombstone":
        message = {
            "id": "test",
            "type": "Delete",
            "actor": remote_identity.actor_uri,
            "object": {
                "id": "https://remote.test/test-post",
                "type": "Tombstone",
            },
        }
    else:
        message = {
            "id": "test",
            "type": "Delete",
            "actor": remote_identity.actor_uri,
            "object": {
                "id": "https://remote.test/test-post",
                "type": "Note",
                "published": "2022-11-13T23:20:16Z",
                "attributedTo": remote_identity.actor_uri,
            },
        }
    InboxMessage.objects.create(message=message)

    # Run stator and ensure that deleted the post
    stator.run_single_cycle()
    assert not Post.objects.filter(object_uri="https://remote.test/test-post").exists()

    # Create an inbound new post message with only contentMap
    message = {
        "id": "test",
        "type": "Create",
        "actor": remote_identity.actor_uri,
        "object": {
            "id": "https://remote.test/test-map-only",
            "type": "Note",
            "published": "2022-11-13T23:20:16Z",
            "attributedTo": remote_identity.actor_uri,
            "contentMap": {"und": "post with only content map"},
        },
    }
    InboxMessage.objects.create(message=message)

    # Run stator and ensure that made the post
    stator.run_single_cycle()
    post = Post.objects.get(object_uri="https://remote.test/test-map-only")
    assert post.content == "post with only content map"
    assert post.published.day == 13
    assert post.url == "https://remote.test/test-map-only"


@pytest.mark.django_db
def test_post_hashtag_to_ap(identity: Identity, config_system):
    """
    Tests post hashtags conversion to AP format.
    """
    post = Post.create_local(author=identity, content="Hello #world")
    assert post.hashtags == ["world"]

    ap = post.to_create_ap()
    assert ap["object"]["tag"] == [
        {
            "href": "https://example.com/tags/world/",
            "name": "#world",
            "type": "Hashtag",
        }
    ]
    assert "#world" in ap["object"]["content"]
    assert 'rel="tag"' in ap["object"]["content"]


@pytest.mark.django_db
@pytest.mark.parametrize(
    "visibility",
    [
        Post.Visibilities.public,
        Post.Visibilities.unlisted,
        Post.Visibilities.followers,
        Post.Visibilities.mentioned,
    ],
)
def test_post_targets_to_ap(
    identity: Identity, other_identity: Identity, visibility: Post.Visibilities
):
    """
    Ensures that posts have the right targets in AP form.
    """

    # Make a post
    post = Post.objects.create(
        content="<p>Hello @other</p>",
        author=identity,
        local=True,
        visibility=visibility,
    )
    post.mentions.add(other_identity)

    # Check its AP targets
    ap_dict = post.to_ap()
    if visibility == Post.Visibilities.public:
        assert ap_dict["to"] == ["as:Public"]
        assert ap_dict["cc"] == [other_identity.actor_uri]
    elif visibility == Post.Visibilities.unlisted:
        assert "to" not in ap_dict
        assert ap_dict["cc"] == ["as:Public", other_identity.actor_uri]
    elif visibility == Post.Visibilities.followers:
        assert ap_dict["to"] == [identity.followers_uri]
        assert ap_dict["cc"] == [other_identity.actor_uri]
    elif visibility == Post.Visibilities.mentioned:
        assert "to" not in ap_dict
        assert ap_dict["cc"] == [other_identity.actor_uri]