# This code is part of Qiskit.
#
# (C) Copyright IBM 2021.
#
# This code is licensed under the Apache License, Version 2.0. You may
# obtain a copy of this license in the LICENSE.txt file in the root directory
# of this source tree or at http://www.apache.org/licenses/LICENSE-2.0.
#
# Any modifications or derivative works of this code must retain this
# copyright notice, and modified files need to carry a notice indicating
# that they have been altered from the originals.

"""Values used by the API for different values."""

import enum

QISKIT_IBM_API_URL = "https://auth.quantum-computing.ibm.com/api"


class ApiJobStatus(enum.Enum):
    """Possible values used by the API for a job status.

    The enum names represent the strings returned by the API verbatim in
    several endpoints (`status()`, websocket information, etc). The general
    flow is:

    `CREATING -> CREATED -> VALIDATING -> VALIDATED -> RUNNING -> COMPLETED`
    """

    CREATING = "CREATING"
    CREATED = "CREATED"
    TRANSPILING = "TRANSPILING"
    TRANSPILED = "TRANSPILED"
    VALIDATING = "VALIDATING"
    VALIDATED = "VALIDATED"
    RUNNING = "RUNNING"
    COMPLETED = "COMPLETED"
    PENDING_IN_QUEUE = "PENDING_IN_QUEUE"
    QUEUED = "QUEUED"
    CANCELLED = "CANCELLED"
    CANCELLED_RAN_TOO_LONG = "CANCELLED - RAN TOO LONG"
    FAILED = "FAILED"
    ERROR_CREATING_JOB = "ERROR_CREATING_JOB"
    ERROR_VALIDATING_JOB = "ERROR_VALIDATING_JOB"
    ERROR_RUNNING_JOB = "ERROR_RUNNING_JOB"
    ERROR_TRANSPILING_JOB = "ERROR_TRANSPILING_JOB"


API_JOB_FINAL_STATES = (
    ApiJobStatus.COMPLETED,
    ApiJobStatus.CANCELLED,
    ApiJobStatus.ERROR_CREATING_JOB,
    ApiJobStatus.ERROR_VALIDATING_JOB,
    ApiJobStatus.ERROR_RUNNING_JOB,
    ApiJobStatus.ERROR_TRANSPILING_JOB,
    ApiJobStatus.FAILED,
)


class ApiJobKind(enum.Enum):
    """Possible values used by the API for a job kind."""

    QOBJECT = "q-object"
    QOBJECT_STORAGE = "q-object-external-storage"
    CIRCUIT = "q-circuit"