from __future__ import annotations

import json
import sys
import unittest
from pathlib import Path

import msgpack
import zstandard as zstd

sys.path.insert(0, str(Path(__file__).resolve().parents[1]))

from spectra_ws_payload import SpectraPayloadError, decode_spectra_ws_payload


def _zstd(payload: bytes) -> bytes:
    return zstd.ZstdCompressor().compress(payload)


class SpectraWsPayloadTests(unittest.TestCase):
    def test_decode_zstd_json_object(self) -> None:
        replay = {"completed": [{"_id": 123, "players": {"1": {"nick": "A"}}}]}

        self.assertEqual(decode_spectra_ws_payload(_zstd(json.dumps(replay).encode("utf-8"))), replay)

    def test_decode_zstd_msgpack_object(self) -> None:
        replay = {"completed": [{"_id": 123, "players": {"1": {"nick": "A"}}}]}

        self.assertEqual(decode_spectra_ws_payload(_zstd(msgpack.packb(replay, use_bin_type=True))), replay)

    def test_decode_plain_json_text_frame(self) -> None:
        replay = {"_id": "abc", "teams": []}

        self.assertEqual(decode_spectra_ws_payload(json.dumps(replay)), replay)

    def test_unknown_payload_raises_clear_error(self) -> None:
        with self.assertRaisesRegex(SpectraPayloadError, "neither JSON nor msgpack"):
            decode_spectra_ws_payload(_zstd(b"not-json-or-msgpack"))


if __name__ == "__main__":
    unittest.main()