from enum import Enum


class IntegrationAction(Enum):
    ALL_CALLS = "All Calls"
    QUALIFIED_CALLS = "Qualified Calls"


class Environment(Enum):
    LOCAL = "local"
    PRODUCTION = "production"
    TEST = "test"


class WorkflowRunMode(Enum):
    TWILIO = "twilio"
    VONAGE = "vonage"
    STASIS = "stasis"
    WEBRTC = "webrtc"
    SMALLWEBRTC = "smallwebrtc"

    # Historical, not used anymore. Don't
    # use and don't remove
    VOICE = "VOICE"
    CHAT = "CHAT"


class StorageBackend(Enum):
    """Storage backend enumeration.

    Currently supported backends:
    - S3: Amazon S3
    - MINIO: MinIO

    Future extensibility: Additional backends like GCS, Azure can be added by:
    1. Adding new enum values as strings
    2. Implementing storage logic in services/storage.py
    3. Database will automatically support new values via SQLAlchemy Enum type
    """

    # Currently implemented backends
    S3 = "s3"  # AWS S3 for cloud deployments
    MINIO = "minio"  # MinIO for local/OSS deployments

    @classmethod
    def get_current_backend(cls):
        """Get current backend based on ENABLE_AWS_S3 flag."""
        from api.constants import ENABLE_AWS_S3

        if ENABLE_AWS_S3:
            return cls.S3
        else:
            return cls.MINIO


class WorkflowRunStatus(Enum):
    # historical modes
    VOICE = "VOICE"
    CHAT = "CHAT"


class OrganizationConfigurationKey(Enum):
    DISPOSITION_CODE_MAPPING = "DISPOSITION_CODE_MAPPING"
    DISPOSITION_MESSAGE_TEMPLATE = "DISPOSITION_MESSAGE_TEMPLATE"
    CONCURRENT_CALL_LIMIT = "CONCURRENT_CALL_LIMIT"
    TELEPHONY_CONFIGURATION = (
        "TELEPHONY_CONFIGURATION"  # Stores all providers + active one
    )
    TWILIO_CONFIGURATION = (
        "TWILIO_CONFIGURATION"  # Deprecated - for backward compatibility
    )


class WorkflowStatus(Enum):
    """Workflow status values"""

    ACTIVE = "active"
    ARCHIVED = "archived"
    # Future statuses can be added here like:
    # DRAFT = "draft"
    # PAUSED = "paused"


class RedisChannel(Enum):
    """Redis pub/sub channel names"""

    CAMPAIGN_EVENTS = "campaign_events"