import pytest

from .helpers.helpers import request_with_validation
from .helpers.collection_setup import drop_collection


collection_name = 'test_collection'
source_collection_name = 'source_collection'


@pytest.fixture(autouse=True, scope="module")
def setup():
    yield
    drop_collection(collection_name=collection_name)
    drop_collection(collection_name=source_collection_name)


# Delete and create collection
def advanced_collection_setup(collection_name, size, distance, on_disk_payload):
    response = request_with_validation(
        api='/collections/{collection_name}',
        method="DELETE",
        path_params={'collection_name': collection_name},
    )
    assert response.ok

    response = request_with_validation(
        api='/collections/{collection_name}',
        method="PUT",
        path_params={'collection_name': collection_name},
        body={
            "vectors": {
                "size": size,
                "distance": distance
            },
            "on_disk_payload": on_disk_payload
        }
    )
    assert response.ok

    response = request_with_validation(
        api='/collections/{collection_name}',
        method="GET",
        path_params={'collection_name': collection_name},
    )
    assert response.ok


# Delete and create collection
def advanced_collection_multi_setup(collection_name, vectors_config):
    response = request_with_validation(
        api='/collections/{collection_name}',
        method="DELETE",
        path_params={'collection_name': collection_name},
    )
    assert response.ok

    response = request_with_validation(
        api='/collections/{collection_name}',
        method="PUT",
        path_params={'collection_name': collection_name},
        body={
            "vectors": vectors_config
        }
    )
    assert response.ok

    response = request_with_validation(
        api='/collections/{collection_name}',
        method="GET",
        path_params={'collection_name': collection_name},
    )
    assert response.ok


def create_from_collection(collection_name, source_collection_name, size, distance, on_disk_payload):
    response = request_with_validation(
        api='/collections/{collection_name}',
        method="DELETE",
        path_params={'collection_name': collection_name},
    )
    assert response.ok

    response = request_with_validation(
        api='/collections/{collection_name}',
        method="PUT",
        path_params={'collection_name': collection_name},
        body={
            "vectors": {
                "size": size,
                "distance": distance
            },
            "on_disk_payload": on_disk_payload,
            "init_from": {
                "collection": source_collection_name
            }
        }
    )
    return response


def create_multi_from_collection(collection_name, source_collection_name, vectors_config):
    response = request_with_validation(
        api='/collections/{collection_name}',
        method="DELETE",
        path_params={'collection_name': collection_name},
    )
    assert response.ok

    response = request_with_validation(
        api='/collections/{collection_name}',
        method="PUT",
        path_params={'collection_name': collection_name},
        body={
            "vectors": vectors_config,
            "init_from": {
                "collection": source_collection_name
            }
        }
    )
    return response


def test_init_from_collection():
    default_vector()
    multi_vector()


def default_vector():
    # test successful init from collection
    advanced_collection_setup(source_collection_name, 4, 'Dot', False)
    response = create_from_collection(collection_name, source_collection_name, 4, 'Dot', False)
    assert response.ok

    # test failed init from collection (non existing source collection)
    advanced_collection_setup(source_collection_name, 4, 'Dot', False)
    response = create_from_collection(collection_name, "i-do-not-exist", 4, 'Dot', False)
    assert not response.ok

    # test failed init from collection (bad size)
    advanced_collection_setup(source_collection_name, 4, 'Dot', False)
    response = create_from_collection(collection_name, source_collection_name, 8, 'Dot', False)
    assert not response.ok

    # test failed init from collection (bad distance)
    advanced_collection_setup(source_collection_name, 4, 'Dot', False)
    response = create_from_collection(collection_name, source_collection_name, 4, 'Cosine', False)
    assert not response.ok


def multi_vector():
    config = {
        "image": {
            "size": 4,
            "distance": "Dot",
        },
        "audio": {
            "size": 8,
            "distance": "Dot",
        }
    }
    # test successful init from collection
    advanced_collection_multi_setup(source_collection_name, config)
    response = create_multi_from_collection(collection_name, source_collection_name, config)
    assert response.ok

    larger_config = {
        "image": {
            "size": 4,
            "distance": "Dot",
        },
        "audio": {
            "size": 8,
            "distance": "Dot",
        },
        "video": {  # new vector
            "size": 16,
            "distance": "Dot",
        }
    }
    # test successful init from collection (source is subset from target)
    advanced_collection_multi_setup(source_collection_name, config)
    response = create_multi_from_collection(collection_name, source_collection_name, larger_config)
    assert response.ok

    larger_config = {
        "image": {
            "size": 4,
            "distance": "Dot",
        },
        "audio": {
            "size": 9,  # bad size
            "distance": "Dot",
        },
        "video": {
            "size": 16,
            "distance": "Dot",
        }
    }
    # test failed init from collection (target changes size of existing vector)
    advanced_collection_multi_setup(source_collection_name, config)
    response = create_multi_from_collection(collection_name, source_collection_name, larger_config)
    assert not response.ok