from sqlalchemy import (
    Column,
    String,
    Integer,
    ForeignKey
)
from sqlalchemy.orm import relationship

from models.common.base import BaseModel


class pcentral(BaseModel):
    """
    description: Nutanix prism central model
    """
    __tablename__ = "tnc_pcentrals"
    _s_collection_name = "pcentrals"
    _s_class_name = "pcentral"

    id = Column(Integer, primary_key=True, autoincrement=True, index=True)
    name = Column(String(32), unique=True, index=True, nullable=False)
    hostname = Column(String(64), unique=True, index=True, nullable=True)
    ncc_version = Column(String(16), index=True, nullable=False)
    aos_version = Column(String(16), index=True, nullable=False)

    contour_id = Column(Integer, ForeignKey("tcc_contours.id"))
    contour = relationship("contour", back_populates="pcentral")

    npcreport = relationship(
        "npcreport",
        backref="pcentral",
        cascade="save-update, delete",
        lazy="dynamic"
    )
    pelement = relationship(
        "pelement",
        backref="pcentral",
        cascade="save-update, delete",
        lazy="dynamic"
    )