"""Small helpers around the SDK's Xposed hooking and Java threading."""

from hook_utils import find_class


def hook_all(plugin, class_name, method_name, hook):
    """Hooks every overload of `class_name.method_name`; returns the unhook handles."""
    clazz = find_class(class_name)
    if clazz is None:
        plugin.log(f"class not found: {class_name}")
        return []
    try:
        unhooks = plugin.hook_all_methods(clazz, method_name, hook)
    except Exception as exc:
        plugin.log(f"failed to hook {class_name}.{method_name}: {exc}")
        return []
    unhooks = list(unhooks or [])
    if not unhooks:
        plugin.log(f"no overloads hooked for {class_name}.{method_name}")
    return unhooks


def unhook_all(plugin, handles):
    for handle in handles:
        try:
            plugin.unhook_method(handle)
        except Exception:
            pass
    del handles[:]


def field(obj, name, default=None):
    """A (possibly private) field of a Java object."""
    value = getattr(obj, name, None)
    if value is not None:
        return value
    try:
        from hook_utils import get_private_field

        value = get_private_field(obj, name)
    except Exception:
        value = None
    return default if value is None else value


def on_ui(plugin, fn, delay_ms=0):
    """Runs `fn` on the UI thread; exceptions are logged, not lost."""
    from android_utils import run_on_ui_thread

    def run():
        try:
            fn()
        except Exception as exc:
            plugin.log(f"ui task failed: {exc}")

    run_on_ui_thread(run, delay_ms)