import gzip
import json
from pathlib import Path

import pytest
from deepdiff import DeepDiff

from pyinfra.storage.proto_data_loader import ProtoDataLoader


@pytest.fixture
def test_data_dir():
    return Path(__file__).parents[1] / "data"


@pytest.fixture
def document_data(request, test_data_dir) -> (str, bytes, dict | list):
    doc_type = request.param
    input_file_path = test_data_dir / f"72ea04dfdbeb277f37b9eb127efb0896.{doc_type}.proto.gz"
    target_file_path = test_data_dir / f"3f9d3d9f255007de8eff13648321e197.{doc_type}.json.gz"

    input_data = input_file_path.read_bytes()
    target_data = json.loads(gzip.decompress(target_file_path.read_bytes()))

    return input_file_path, input_data, target_data


@pytest.fixture
def proto_data_loader():
    return ProtoDataLoader()


@pytest.fixture
def should_match():
    return [
        "a.DOCUMENT_STRUCTURE.proto.gz",
        "a.DOCUMENT_TEXT.proto.gz",
        "a.DOCUMENT_PAGES.proto.gz",
        "a.DOCUMENT_POSITION.proto.gz",
        "b.DOCUMENT_STRUCTURE.proto",
        "b.DOCUMENT_TEXT.proto",
        "b.DOCUMENT_PAGES.proto",
        "b.DOCUMENT_POSITION.proto",
        "c.STRUCTURE.proto.gz",
        "c.TEXT.proto.gz",
        "c.PAGES.proto.gz",
        "c.POSITION.proto.gz",
    ]


@pytest.mark.xfail(
    reason="FIXME: The test is not stable, but hast to work before we can deploy the code! Right now, we don't have parity between the proto and the json data."
)
# As DOCUMENT_POSITION is a very large file, the test takes forever. If you want to test it, add "DOCUMENT_POSITION" to the list below.
@pytest.mark.parametrize("document_data", ["DOCUMENT_STRUCTURE", "DOCUMENT_TEXT", "DOCUMENT_PAGES"], indirect=True)
def test_proto_data_loader_end2end(document_data, proto_data_loader):
    file_path, data, target = document_data
    data = gzip.decompress(data)
    loaded_data = proto_data_loader(file_path, data)

    loaded_data_str = json.dumps(loaded_data, sort_keys=True)
    target_str = json.dumps(target, sort_keys=True)

    diff = DeepDiff(sorted(loaded_data_str), sorted(target_str), ignore_order=True)

    # FIXME: remove this block when the test is stable
    # if diff:
    #     with open("/tmp/diff.json", "w") as f:
    #         f.write(diff.to_json(indent=2))

    assert not diff


def test_proto_data_loader_unknown_document_type(proto_data_loader):
    assert not proto_data_loader("unknown_document_type.proto", b"")


def test_proto_data_loader_file_name_matching(proto_data_loader, should_match):
    for file_name in should_match:
        assert proto_data_loader._match(file_name) is not None