from datetime import datetime as dt
from datetime import timezone

import pytest
from conftest import DB, Response
from hircine.db.models import World


@pytest.fixture
def query_world(execute_id):
    query = """
    query world($id: Int!) {
        world(id: $id) {
            __typename
            ... on World {
                id
                name
            }
            ... on Error {
                message
            }
            ... on IDNotFoundError {
                id
            }
        }
    }
    """

    return execute_id(query)


@pytest.fixture
def query_worlds(execute):
    query = """
    query worlds {
        worlds {
            __typename
            count
            edges {
                id
                name
            }
        }
    }
    """

    return execute(query)


@pytest.fixture
def add_world(execute_add):
    mutation = """
    mutation addWorld($input: AddWorldInput!) {
        addWorld(input: $input) {
            __typename
            ... on AddSuccess {
                id
            }
            ... on Error {
                message
            }
            ... on InvalidParameterError {
                parameter
            }
        }
    }
    """

    return execute_add(mutation)


@pytest.fixture
def update_worlds(execute_update):
    mutation = """
    mutation updateWorlds($ids: [Int!]!, $input: UpdateWorldInput!) {
        updateWorlds(ids: $ids, input: $input) {
            __typename
            ... on Success {
                message
            }
            ... on Error {
                message
            }
            ... on IDNotFoundError {
                id
            }
            ... on InvalidParameterError {
                parameter
            }
        }
    }
    """  # noqa: E501

    return execute_update(mutation)


@pytest.fixture
def delete_worlds(execute_delete):
    mutation = """
    mutation deleteWorlds($ids: [Int!]!) {
        deleteWorlds(ids: $ids) {
            __typename
            ... on Success {
                message
            }
            ... on Error {
                message
            }
            ... on IDNotFoundError {
                id
            }
        }
    }
    """

    return execute_delete(mutation)


@pytest.mark.anyio
async def test_query_world(query_world, gen_world):
    world = await DB.add(next(gen_world))

    response = Response(await query_world(world.id))
    response.assert_is("World")

    assert response.id == world.id
    assert response.name == world.name


@pytest.mark.anyio
async def test_query_world_fails_not_found(query_world):
    response = Response(await query_world(1))
    response.assert_is("IDNotFoundError")
    assert response.id == 1
    assert response.message == "World ID not found: '1'"


@pytest.mark.anyio
async def test_query_worlds(query_worlds, gen_world):
    worlds = await DB.add_all(*gen_world)

    response = Response(await query_worlds())
    response.assert_is("WorldFilterResult")

    assert response.count == len(worlds)
    assert isinstance((response.edges), list)
    assert len(response.edges) == len(worlds)

    edges = iter(response.edges)
    for world in sorted(worlds, key=lambda a: a.name):
        edge = next(edges)
        assert edge["id"] == world.id
        assert edge["name"] == world.name


@pytest.mark.anyio
async def test_add_world(add_world):
    response = Response(await add_world({"name": "added world"}))
    response.assert_is("AddSuccess")

    world = await DB.get(World, response.id)
    assert world is not None
    assert world.name == "added world"


@pytest.mark.anyio
async def test_add_world_fails_empty_parameter(add_world):
    response = Response(await add_world({"name": ""}))

    response.assert_is("InvalidParameterError")
    assert response.parameter == "name"
    assert response.message == "Invalid parameter 'name': cannot be empty"


@pytest.mark.anyio
async def test_add_world_fails_exists(add_world, gen_world):
    world = await DB.add(next(gen_world))

    response = Response(await add_world({"name": world.name}))
    response.assert_is("NameExistsError")
    assert response.message == "Another World with this name exists"


@pytest.mark.anyio
async def test_delete_world(delete_worlds, gen_world):
    world = await DB.add(next(gen_world))
    id = world.id

    response = Response(await delete_worlds(id))
    response.assert_is("DeleteSuccess")

    world = await DB.get(World, id)
    assert world is None


@pytest.mark.anyio
async def test_delete_world_not_found(delete_worlds):
    response = Response(await delete_worlds(1))

    response.assert_is("IDNotFoundError")
    assert response.id == 1
    assert response.message == "World ID not found: '1'"


@pytest.mark.anyio
async def test_update_world(update_worlds, gen_world):
    world = await DB.add(next(gen_world))

    input = {"name": "updated world"}
    response = Response(await update_worlds(world.id, input))
    response.assert_is("UpdateSuccess")

    world = await DB.get(World, world.id)
    assert world is not None
    assert world.name == "updated world"


@pytest.mark.anyio
async def test_update_world_fails_exists(update_worlds, gen_world):
    first = await DB.add(next(gen_world))
    second = await DB.add(next(gen_world))

    response = Response(await update_worlds(second.id, {"name": first.name}))
    response.assert_is("NameExistsError")
    assert response.message == "Another World with this name exists"


@pytest.mark.anyio
async def test_update_world_fails_not_found(update_worlds):
    response = Response(await update_worlds(1, {"name": "updated world"}))

    response.assert_is("IDNotFoundError")
    assert response.id == 1
    assert response.message == "World ID not found: '1'"


@pytest.mark.anyio
async def test_update_worlds_cannot_bulk_edit_name(update_worlds, gen_world):
    first = await DB.add(next(gen_world))
    second = await DB.add(next(gen_world))

    response = Response(await update_worlds([first.id, second.id], {"name": "unique"}))
    response.assert_is("InvalidParameterError")


@pytest.mark.parametrize(
    "empty",
    [
        None,
        "",
    ],
    ids=[
        "none",
        "empty string",
    ],
)
@pytest.mark.anyio
async def test_update_world_fails_empty_parameter(update_worlds, gen_world, empty):
    world = await DB.add(next(gen_world))

    response = Response(await update_worlds(world.id, {"name": empty}))

    response.assert_is("InvalidParameterError")
    assert response.parameter == "name"
    assert response.message == "Invalid parameter 'name': cannot be empty"


@pytest.mark.anyio
async def test_update_world_changes_updated_at(update_worlds):
    original_world = World(name="world")
    original_world.updated_at = dt(2023, 1, 1, tzinfo=timezone.utc)
    original_world = await DB.add(original_world)

    response = Response(await update_worlds(original_world.id, {"name": "updated"}))
    response.assert_is("UpdateSuccess")

    world = await DB.get(World, original_world.id)
    assert world.updated_at > original_world.updated_at