"""Plug-in to collect information about the Windows timezone settings."""

from plaso.containers import events
from plaso.parsers import winreg_parser
from plaso.parsers.winreg_plugins import interface


class WindowsTimezoneSettingsEventData(events.EventData):
    """Timezone settings event data attribute container.

    Attributes:
      configuration (str): timezone configuration.
      key_path (str): Windows Registry key path.
      last_written_time (dfdatetime.DateTimeValues): entry last written date and
          time.
    """

    DATA_TYPE = "windows:registry:timezone"

    def __init__(self):
        """Initializes event data."""
        super().__init__(data_type=self.DATA_TYPE)
        self.configuration = None
        self.key_path = None
        self.last_written_time = None


class WinRegTimezonePlugin(interface.WindowsRegistryPlugin):
    """Plug-in to collect information about the Windows timezone settings."""

    NAME = "windows_timezone"
    DATA_FORMAT = "Windows time zone Registry data"

    FILTERS = frozenset(
        [
            interface.WindowsRegistryKeyPathFilter(
                "HKEY_LOCAL_MACHINE\\System\\CurrentControlSet\\Control\\"
                "TimeZoneInformation"
            )
        ]
    )

    _VALUE_NAMES = frozenset(
        [
            "ActiveTimeBias",
            "Bias",
            "DaylightBias",
            "DaylightName",
            "DynamicDaylightTimeDisabled",
            "StandardBias",
            "StandardName",
            "TimeZoneKeyName",
        ]
    )

    def ExtractEvents(self, parser_mediator, registry_key, **kwargs):
        """Extracts events from a Windows Registry key.

        Args:
          parser_mediator (ParserMediator): mediates interactions between parsers
              and other components, such as storage and dfVFS.
          registry_key (dfwinreg.WinRegistryKey): Windows Registry key.
        """
        if registry_key is None:
            return

        configuration = []
        for value_name in self._VALUE_NAMES:
            registry_value = registry_key.GetValueByName(value_name)
            if not registry_value:
                continue

            value = registry_value.GetDataAsObject()
            if value is not None:
                configuration.append(f"{registry_value.name:s}: {value!s}")

        event_data = WindowsTimezoneSettingsEventData()
        event_data.configuration = " ".join(sorted(configuration)) or None
        event_data.key_path = registry_key.path
        event_data.last_written_time = registry_key.last_written_time

        parser_mediator.ProduceEventData(event_data)


winreg_parser.WinRegistryParser.RegisterPlugin(WinRegTimezonePlugin)
