# Copyright (C) 2015-2020 Virgil Security, Inc.
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#     notice, this list of conditions and the following disclaimer.
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# Lead Maintainer: Virgil Security Inc. <support@virgilsecurity.com>


from ctypes import *


class VirgilCryptoPheError(Exception):
    pass


class Status(object):
    """Defines the library status codes."""

    # No errors was occurred.
    SUCCESS = 0
    # Success proof check failed.
    ERROR_INVALID_SUCCESS_PROOF = -1
    # Failure proof check failed.
    ERROR_INVALID_FAIL_PROOF = -2
    # RNG returned error.
    ERROR_RNG_FAILED = -3
    # Protobuf decode failed.
    ERROR_PROTOBUF_DECODE_FAILED = -4
    # Invalid public key.
    ERROR_INVALID_PUBLIC_KEY = -5
    # Invalid private key.
    ERROR_INVALID_PRIVATE_KEY = -6
    # AES error occurred.
    ERROR_AES_FAILED = -7

    STATUS_DICT = {
        0: "No errors was occurred.",
        -1: "Success proof check failed.",
        -2: "Failure proof check failed.",
        -3: "RNG returned error.",
        -4: "Protobuf decode failed.",
        -5: "Invalid public key.",
        -6: "Invalid private key.",
        -7: "AES error occurred."
    }

    @classmethod
    def handle_status(cls, status):
        """Handle low level lib status"""
        if status != 0:
            try:
                raise VirgilCryptoPheError(cls.STATUS_DICT[status])
            except KeyError:
                raise VirgilCryptoPheError("Unknown error")
