"""Skill model."""
from sqlalchemy import Boolean, Integer, JSON, String, Text
from sqlalchemy.orm import Mapped, mapped_column

from app.models.base import Base, TimestampMixin, UUIDMixin


class Skill(Base, UUIDMixin, TimestampMixin):
    """Reusable skill configuration for AI outputs."""

    __tablename__ = "skills"

    name: Mapped[str] = mapped_column(String(128), nullable=False)
    slug: Mapped[str] = mapped_column(String(128), unique=True, nullable=False, index=True)
    description: Mapped[str | None] = mapped_column(Text, default="")
    type: Mapped[str] = mapped_column(String(32), nullable=False, index=True)  # output / tool / agent
    version: Mapped[int] = mapped_column(Integer, default=1, nullable=False)
    is_default: Mapped[bool] = mapped_column(Boolean, default=False, nullable=False)

    system_prompt: Mapped[str] = mapped_column(Text, nullable=False)
    output_schema: Mapped[dict | None] = mapped_column(JSON, nullable=True)
    tools: Mapped[list] = mapped_column(JSON, default=list, nullable=False)
    input_schema: Mapped[dict | None] = mapped_column(JSON, nullable=True)
    example_inputs: Mapped[list] = mapped_column(JSON, default=list, nullable=False)

    created_by: Mapped[str | None] = mapped_column(String(64), nullable=True)