# Copyright (C) 2015-2020 Virgil Security, Inc.
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# Lead Maintainer: Virgil Security Inc. <support@virgilsecurity.com>


from virgil_crypto_lib._libs import *
from ctypes import *
from virgil_crypto_lib.foundation._c_bridge._vscf_impl import vscf_impl_t
from virgil_crypto_lib.common._c_bridge import vsc_data_t
from ._vscr_ratchet_group_message import vscr_ratchet_group_message_t


class vscr_ratchet_group_ticket_t(Structure):
    pass


class VscrRatchetGroupTicket(object):
    """Group ticket used to start group session or change participants."""

    def __init__(self):
        """Create underlying C context."""
        self._ll = LowLevelLibs()
        self._lib = self._ll.ratchet

    def vscr_ratchet_group_ticket_new(self):
        vscr_ratchet_group_ticket_new = self._lib.vscr_ratchet_group_ticket_new
        vscr_ratchet_group_ticket_new.argtypes = []
        vscr_ratchet_group_ticket_new.restype = POINTER(vscr_ratchet_group_ticket_t)
        return vscr_ratchet_group_ticket_new()

    def vscr_ratchet_group_ticket_delete(self, ctx):
        vscr_ratchet_group_ticket_delete = self._lib.vscr_ratchet_group_ticket_delete
        vscr_ratchet_group_ticket_delete.argtypes = [POINTER(vscr_ratchet_group_ticket_t)]
        vscr_ratchet_group_ticket_delete.restype = None
        return vscr_ratchet_group_ticket_delete(ctx)

    def vscr_ratchet_group_ticket_use_rng(self, ctx, rng):
        """Random used to generate keys"""
        vscr_ratchet_group_ticket_use_rng = self._lib.vscr_ratchet_group_ticket_use_rng
        vscr_ratchet_group_ticket_use_rng.argtypes = [POINTER(vscr_ratchet_group_ticket_t), POINTER(vscf_impl_t)]
        vscr_ratchet_group_ticket_use_rng.restype = None
        return vscr_ratchet_group_ticket_use_rng(ctx, rng)

    def vscr_ratchet_group_ticket_setup_defaults(self, ctx):
        """Setups default dependencies:
        - RNG: CTR DRBG"""
        vscr_ratchet_group_ticket_setup_defaults = self._lib.vscr_ratchet_group_ticket_setup_defaults
        vscr_ratchet_group_ticket_setup_defaults.argtypes = [POINTER(vscr_ratchet_group_ticket_t)]
        vscr_ratchet_group_ticket_setup_defaults.restype = c_int
        return vscr_ratchet_group_ticket_setup_defaults(ctx)

    def vscr_ratchet_group_ticket_setup_ticket_as_new(self, ctx, session_id):
        """Set this ticket to start new group session."""
        vscr_ratchet_group_ticket_setup_ticket_as_new = self._lib.vscr_ratchet_group_ticket_setup_ticket_as_new
        vscr_ratchet_group_ticket_setup_ticket_as_new.argtypes = [POINTER(vscr_ratchet_group_ticket_t), vsc_data_t]
        vscr_ratchet_group_ticket_setup_ticket_as_new.restype = c_int
        return vscr_ratchet_group_ticket_setup_ticket_as_new(ctx, session_id)

    def vscr_ratchet_group_ticket_get_ticket_message(self, ctx):
        """Returns message that should be sent to all participants using secure channel."""
        vscr_ratchet_group_ticket_get_ticket_message = self._lib.vscr_ratchet_group_ticket_get_ticket_message
        vscr_ratchet_group_ticket_get_ticket_message.argtypes = [POINTER(vscr_ratchet_group_ticket_t)]
        vscr_ratchet_group_ticket_get_ticket_message.restype = POINTER(vscr_ratchet_group_message_t)
        return vscr_ratchet_group_ticket_get_ticket_message(ctx)

    def vscr_ratchet_group_ticket_shallow_copy(self, ctx):
        vscr_ratchet_group_ticket_shallow_copy = self._lib.vscr_ratchet_group_ticket_shallow_copy
        vscr_ratchet_group_ticket_shallow_copy.argtypes = [POINTER(vscr_ratchet_group_ticket_t)]
        vscr_ratchet_group_ticket_shallow_copy.restype = POINTER(vscr_ratchet_group_ticket_t)
        return vscr_ratchet_group_ticket_shallow_copy(ctx)
