import datetime

from office365.directory.permissions.identity_set import IdentitySet
from office365.entity import Entity
from office365.onedrive.driveitems.publication_facet import PublicationFacet


class BaseItemVersion(Entity):
    """Represents a previous version of an item or entity."""

    @property
    def last_modified_by(self):
        """Identity of the user which last modified the version. Read-only."""
        return self.properties.get("lastModifiedBy", IdentitySet())

    @property
    def last_modified_datetime(self):
        """Gets date and time the item was last modified."""
        return self.properties.get("lastModifiedDateTime", datetime.datetime.min)

    @property
    def publication(self):
        """Indicates the publication status of this particular version. Read-only."""
        return self.properties.get("publication", PublicationFacet())

    def get_property(self, name, default_value=None):
        if default_value is None:
            property_mapping = {
                "lastModifiedBy": self.last_modified_by,
                "lastModifiedDateTime": self.last_modified_datetime,
            }
            default_value = property_mapping.get(name, None)
        return super(BaseItemVersion, self).get_property(name, default_value)