"""
Shared test server constants for use in individual test files.

Instead of hardcoding ``BASE = "http://127.0.0.1:8788"`` in every test file,
import from here so the port and state dir are always consistent with
what conftest.py computed for this worktree.

Usage::

    from tests._pytest_port import BASE

conftest.py publishes ``HERMES_WEBUI_TEST_PORT`` and
``HERMES_WEBUI_TEST_STATE_DIR`` to ``os.environ`` at module level
(before any test file is imported), so this module always reads the
correct values.  The auto-derivation fallback matches conftest's logic
exactly, so standalone imports also work correctly.
"""
import hashlib
import os
import pathlib

def _auto_test_port(repo_root: pathlib.Path) -> int:
    h = int(hashlib.md5(str(repo_root).encode()).hexdigest(), 16)
    return 20000 + (h % 10000)

def _auto_state_dir_name(repo_root: pathlib.Path) -> str:
    h = hashlib.md5(str(repo_root).encode()).hexdigest()[:8]
    return f"webui-test-{h}"

_TESTS_DIR   = pathlib.Path(__file__).parent.resolve()
_REPO_ROOT   = _TESTS_DIR.parent.resolve()
_HERMES_HOME = pathlib.Path(os.getenv('HERMES_HOME',
                             str(pathlib.Path.home() / '.hermes')))

TEST_PORT = int(os.environ.get('HERMES_WEBUI_TEST_PORT',
                               str(_auto_test_port(_REPO_ROOT))))
BASE = f"http://127.0.0.1:{TEST_PORT}"

TEST_STATE_DIR = pathlib.Path(os.environ.get(
    'HERMES_WEBUI_TEST_STATE_DIR',
    str(_HERMES_HOME / _auto_state_dir_name(_REPO_ROOT))
))