Circuit Management

class Provider:
    """
    Service providers for circuit management.
    
    Attributes:
        name (str): Provider name
        slug (str): URL-safe slug  
        asn (int): Autonomous System Number
        account (str): Account number
        portal_url (str): Customer portal URL
        noc_contact (str): NOC contact information
        admin_contact (str): Administrative contact
        comments (str): Comments
        tags (list): Associated tags
    """

class ProviderNetwork:
    """
    Provider networks for service delivery.
    
    Attributes:
        name (str): Network name
        provider (Provider): Associated provider
        description (str): Network description
        service_id (str): Service identifier  
        comments (str): Comments
        tags (list): Associated tags
    """

class CircuitType:
    """
    Circuit type definitions.
    
    Attributes:
        name (str): Circuit type name
        slug (str): URL-safe slug
        description (str): Type description
    """

class Circuit:
    """
    Service provider circuits.
    
    Attributes:
        cid (str): Circuit ID
        provider (Provider): Service provider
        type (CircuitType): Circuit type
        status (Status): Circuit status
        tenant (Tenant): Tenant assignment
        install_date (date): Installation date
        commit_rate (int): Committed rate in Kbps
        description (str): Circuit description
        comments (str): Comments
        tags (list): Associated tags
    """

class CircuitTermination:
    """
    Circuit endpoints/terminations.
    
    Attributes:
        circuit (Circuit): Associated circuit
        term_side (str): Termination side (A or Z)
        location (Location): Termination location
        provider_network (ProviderNetwork): Provider network
        port_speed (int): Port speed in Kbps
        upstream_speed (int): Upstream speed in Kbps  
        xconnect_id (str): Cross-connect ID
        pp_info (str): Patch panel information
        description (str): Termination description
    """

from nautobot.circuits.models import Provider, ProviderNetwork

# Create provider
provider = Provider.objects.create(
    name="Acme Telecom",
    asn=65001,
    account="ACCT-12345",
    portal_url="https://portal.acme-telecom.com",
    noc_contact="noc@acme-telecom.com"
)

# Create provider network
network = ProviderNetwork.objects.create(
    name="MPLS-Core",
    provider=provider,
    description="Core MPLS network"
)

from nautobot.circuits.models import Circuit, CircuitType, CircuitTermination
from nautobot.dcim.models import Location

# Create circuit type
circuit_type = CircuitType.objects.create(
    name="MPLS",
    description="MPLS VPN Service"
)

# Create circuit
circuit = Circuit.objects.create(
    cid="MPLS-001",
    provider=provider,
    type=circuit_type,
    commit_rate=100000,  # 100 Mbps
    description="Primary MPLS connection"
)

# Create circuit terminations
site_a = Location.objects.get(name="New York")
site_z = Location.objects.get(name="Chicago")

term_a = CircuitTermination.objects.create(
    circuit=circuit,
    term_side="A",
    location=site_a,
    port_speed=100000
)

term_z = CircuitTermination.objects.create(
    circuit=circuit,
    term_side="Z", 
    location=site_z,
    port_speed=100000
)