"""Compat shim framework.

The registries are empty today (no legacy-client shim has been needed since the
first public release, 0.14.1), so every adapter must be a verbatim pass-through
regardless of client version. These tests lock that in and exercise the
empty-registry short-circuit so the seam can't silently start mutating traffic.
"""
import browser_cli.compat as compat
from browser_cli.compat import adapt_auth, adapt_request, adapt_response

def test_registries_are_empty():
  assert compat.commands._COMPAT == []
  assert compat.auth._AUTH_COMPAT == []

def test_adapt_auth_is_passthrough_for_any_version():
  msg = {"id": "1", "command": "tabs.list", "pubkey": "ABCdef", "args": {"x": 1}}
  for version in ("0.9.0", "0.14.1", "0.16.4", "99.0.0"):
    out = adapt_auth(msg, version)
    assert out == msg
    # pubkey casing is NOT normalized anymore (the old <0.9.3 shim is gone)
    assert out["pubkey"] == "ABCdef"

def test_adapt_request_is_passthrough():
  msg = {"command": "tabs.query", "args": {"search": "docs"}}
  assert adapt_request(msg, "0.9.0") == msg
  assert adapt_request(msg, "0.16.4") == msg

def test_adapt_response_is_passthrough():
  resp = b'{"id":"1","success":true,"data":[]}'
  assert adapt_response(resp, "tabs.list", "0.9.0") == resp
  assert adapt_response(resp, "tabs.list", "0.16.4") == resp

def test_empty_guard_skips_version_parsing(monkeypatch):
  """With empty registries the adapters return before parse_version runs."""
  called = False

  def _boom(_v):
    nonlocal called
    called = True
    raise AssertionError("parse_version should not be called on an empty registry")

  monkeypatch.setattr(compat.auth, "parse_version", _boom)
  monkeypatch.setattr(compat.commands, "parse_version", _boom)

  assert adapt_auth({"a": 1}, "0.9.0") == {"a": 1}
  assert adapt_request({"a": 1}, "0.9.0") == {"a": 1}
  assert adapt_response(b"x", "cmd", "0.9.0") == b"x"
  assert called is False