import datetime
from sqlalchemy import String, Text, DateTime, Boolean
from sqlalchemy.orm import Mapped, mapped_column, relationship
from app.database import Base


class Field(Base):
    __tablename__ = "fields"

    id: Mapped[int] = mapped_column(primary_key=True, index=True)
    name: Mapped[str] = mapped_column(String(200), unique=True, index=True)
    slug: Mapped[str] = mapped_column(String(200), unique=True, index=True)
    description: Mapped[str | None] = mapped_column(Text, nullable=True)
    icon: Mapped[str | None] = mapped_column(String(100), nullable=True)
    color: Mapped[str] = mapped_column(String(7), default="#00A651")
    is_active: Mapped[bool] = mapped_column(Boolean, default=True)
    created_at: Mapped[datetime.datetime] = mapped_column(DateTime, default=datetime.datetime.utcnow)

    users = relationship("User", back_populates="field")
    publications = relationship("Publication", back_populates="field")
    questions = relationship("Question", back_populates="field")
    jobs = relationship("Job", back_populates="field")