"""Ticket #17 prefactor inventory: central identity + rename surfaces.

Seams under test (per spec Testing Decisions):
- Seam 1 (Python behaviour suite): central constants hold current values and
  every previously duplicated consumer resolves through the shared definition.
- Seam 2 (offline policy test): rename/retained inventories enumerate files
  the rename ticket must flip (or deliberately keep) without network access.

No user-visible behaviour, name, path, or string changes: all asserted values
are the pre-rename Vocalinux/vocalinux literals.
"""

import ast
from pathlib import Path

REPO_ROOT = Path(__file__).resolve().parents[1]
SRC_ROOT = REPO_ROOT / "src" / "vocalinux"


def _load_identity():
    from vocalinux import app_identity

    return app_identity


def test_central_values_are_current_names():
    """Shared definition still carries the pre-rename literals."""
    identity = _load_identity()
    assert identity.APP_NAME == "Vocalinux"
    assert identity.APP_ID == "vocalinux"
    assert identity.APP_DIR_NAME == "vocalinux"
    assert identity.CLI_PROG == "vocalinux"
    assert identity.BUS_NAME == "com.vocalinux.Vocalinux"
    assert identity.OBJECT_PATH == "/com/vocalinux/Vocalinux"
    assert identity.INTERFACE_NAME == "com.vocalinux.Vocalinux"
    assert identity.DESKTOP_FILENAME == "vocalinux.desktop"
    assert identity.DESKTOP_ICON_NAME == "vocalinux"
    assert identity.ENGINE_NAME == "vocalinux"
    assert identity.ENGINE_LONGNAME == "Vocalinux"
    assert identity.COMPONENT_NAME == "org.freedesktop.IBus.Vocalinux"
    assert identity.IBUS_DIR_NAME == "vocalinux-ibus"
    assert identity.UPDATE_CHECKER_USER_AGENT == "Vocalinux-UpdateChecker"
    assert identity.RESOURCE_DIR_NAME == "vocalinux"
    assert identity.VERIFICATION_STAMP_NAME == ".vocalinux_verified"
    assert identity.LOG_FILE_PREFIX == "vocalinux_logs_"
    assert identity.PORTAL_TOKEN_PREFIX == "vocalinux_"
    assert identity.ENV_FORCE_BACKEND == "VOCALINUX_FORCE_BACKEND"
    assert identity.ENV_INJECT_MODIFIER_WAIT == "VOCALINUX_INJECT_MODIFIER_WAIT"
    assert identity.ENV_YDOTOOL_KEY_DELAY == "VOCALINUX_YDOTOOL_KEY_DELAY"


def _imports_app_identity(path: Path) -> bool:
    tree = ast.parse(path.read_text(encoding="utf-8"))
    for node in ast.walk(tree):
        if isinstance(node, ast.ImportFrom):
            if node.module and node.module.endswith("app_identity"):
                return True
    return False


def test_consumers_resolve_through_shared_definition():
    """Previously duplicated surfaces import the shared definition (AST, offline)."""
    consumers = [
        SRC_ROOT / "utils" / "paths.py",
        SRC_ROOT / "ui" / "notifications.py",
        SRC_ROOT / "ui" / "tray_indicator.py",
        SRC_ROOT / "dbus_service.py",
        SRC_ROOT / "ui" / "autostart_manager.py",
        SRC_ROOT / "text_injection" / "ibus_engine.py",
        SRC_ROOT / "utils" / "update_checker.py",
        SRC_ROOT / "utils" / "resource_manager.py",
        SRC_ROOT / "main.py",
        SRC_ROOT / "text_injection" / "text_injector.py",
        SRC_ROOT / "text_injection" / "remote_desktop_portal.py",
        SRC_ROOT / "ui" / "logging_dialog.py",
        SRC_ROOT / "utils" / "model_checksums.py",
        SRC_ROOT / "speech_recognition" / "recognition_manager.py",
        SRC_ROOT / "ui" / "settings_dialog.py",
        SRC_ROOT / "ui" / "dictation_overlay.py",
        SRC_ROOT / "ui" / "audio_feedback.py",
        SRC_ROOT / "ui" / "keyboard_backends" / "__init__.py",
    ]
    missing = [str(p) for p in consumers if not p.exists()]
    assert not missing, f"consumer files missing: {missing}"
    not_centralised = [str(p) for p in consumers if not _imports_app_identity(p)]
    assert not_centralised == [], f"consumers not resolving through app_identity: {not_centralised}"


def test_lightweight_consumers_match_shared_values_at_runtime():
    """Runtime check where importing the consumer needs no display server."""
    identity = _load_identity()
    from vocalinux.ui import autostart_manager, notifications
    from vocalinux.utils import paths

    assert paths.APP_DIR_NAME == identity.APP_DIR_NAME
    assert autostart_manager.DESKTOP_FILENAME == identity.DESKTOP_FILENAME
    assert notifications.APP_NAME == identity.APP_NAME


def test_source_pinned_literals_reserved_for_rename():
    """Literals existing source-shape tests pin stay literal until the rename.

    ``tests/test_settings_dialog.py`` (About page) and
    ``tests/test_dictation_pad.py`` (shelving) read module source or exec
    function bodies in isolation, so ``settings_about.py`` and
    ``dictation_pad.py`` keep their current literals. They are recorded here
    as checked rename surfaces for ticket #18 rather than centralised twice.
    """
    about = (SRC_ROOT / "ui" / "settings_about.py").read_text(encoding="utf-8")
    for literal in (
        'VOCALINUX_SITE_URL = "https://vocalinux.com"',
        'title="Vocalinux"',
        'get_icon_path("vocalinux")',
    ):
        assert literal in about, literal
    pad = (SRC_ROOT / "ui" / "dictation_pad.py").read_text(encoding="utf-8")
    assert 'window.set_title("Vocalinux Dictation Pad")' in pad


def test_rename_inventory_files_exist():
    """Every rename surface the rename ticket must flip is a real checked file."""
    identity = _load_identity()
    assert identity.RENAME_SURFACES, "rename inventory must not be empty"
    missing = [rel for rel in identity.RENAME_SURFACES if not (REPO_ROOT / rel).exists()]
    assert missing == [], f"rename inventory entries missing on disk: {missing}"


def test_retained_inventory_records_internal_names():
    """Internal module name and upstream URLs stay, by record not by accident."""
    identity = _load_identity()
    assert any("src/vocalinux" in entry for entry in identity.RETAINED_SURFACES)
    assert any("github.com/VocaHQ/vocalinux" in entry for entry in identity.RETAINED_SURFACES)
    # The retained Python package must still import under its current name.
    import vocalinux

    assert vocalinux.__name__ == "vocalinux"