import uuid
from datetime import datetime
from app.extensions import db


class VisitRequest(db.Model):
    __tablename__ = "visit_requests"

    id = db.Column(db.String(36), primary_key=True, default=lambda: str(uuid.uuid4()))
    user_id = db.Column(
        db.String(36),
        db.ForeignKey("client_users.id", ondelete="SET NULL"),
        nullable=True,
        index=True,
    )
    property_id = db.Column(
        db.UUID(as_uuid=True),
        db.ForeignKey("properties.id", ondelete="SET NULL"),
        nullable=True,
        index=True,
    )
    message = db.Column(db.Text, nullable=False)
    status = db.Column(db.String(20), nullable=False, default="pending")
    scheduled_at = db.Column(db.DateTime, nullable=True)
    created_at = db.Column(db.DateTime, nullable=False, default=datetime.utcnow)

    user = db.relationship(
        "ClientUser", backref=db.backref("visit_requests", lazy="select")
    )
    property = db.relationship("Property", foreign_keys=[property_id], lazy="joined")