from sqlalchemy import Column, Integer, String
from sqlalchemy.orm import relationship

from app.database import Base
from app.models.project_skill import project_skills


class Skill(Base):
    __tablename__ = "skills"

    id = Column(
        Integer,
        primary_key=True,
        index=True,
        nullable=False
    )

    name = Column(
        String(255),
        nullable=False,
        unique=True
    )

    type = Column(
        String(255),
        nullable=False
    )

    projects = relationship(
        "Project",
        secondary=project_skills,
        back_populates="skills"
    )