"""Request models"""
from enum import Enum
from sqlalchemy import Column, Integer, String, ForeignKey, DateTime, Enum as SQLAlchemyEnum
from sqlalchemy.sql import func
from sqlalchemy.orm import relationship
from ..db.base_class import Base


class RequestStatus(str, Enum):
    """Request status enum"""
    NEW = "new"
    IN_PROGRESS = "in_progress"
    COMPLETED = "completed"
    REJECTED = "rejected"


class RequestPriority(str, Enum):
    """Request priority enum"""
    LOW = "low"
    MEDIUM = "medium"
    HIGH = "high"


class Request(Base):
    """Request model"""
    __tablename__ = "requests"

    id = Column(Integer, primary_key=True, index=True)
    description = Column(String, nullable=False)
    status = Column(SQLAlchemyEnum(RequestStatus), nullable=False, default=RequestStatus.NEW)
    priority = Column(SQLAlchemyEnum(RequestPriority), nullable=False)
    request_type = Column(String, nullable=False)
    department = Column(String, nullable=False)
    employee_id = Column(Integer, ForeignKey("employees.id", ondelete="CASCADE"), nullable=False)
    created_at = Column(DateTime(timezone=True), server_default=func.now(), nullable=False)
    updated_at = Column(DateTime(timezone=True), onupdate=func.now())

    # Определяем отношение к Employee
    employee = relationship("Employee", back_populates="requests")