"""Script model — game logic scripts owned by users and associated with worlds."""

from typing import Optional

from sqlalchemy import Column, Integer, String, Text, DateTime, ForeignKey, func
from sqlalchemy.dialects.postgresql import ENUM, JSONB
from sqlalchemy.orm import relationship
import enum

from app.database import Base


class ScriptType(str, enum.Enum):
    """Type of script storage."""
    GDSCRIPT = "gdscript"
    DSL = "dsl"


class Script(Base):
    """A game script — either raw GDScript source or a DSL payload."""
    __tablename__ = "scripts"

    id = Column(Integer, primary_key=True, index=True)
    name = Column(String(255), nullable=False)
    world_id = Column(Integer, ForeignKey("worlds.id", ondelete="CASCADE"), nullable=True)
    owner_id = Column(Integer, ForeignKey("users.id", ondelete="CASCADE"), nullable=False)
    source_code = Column(Text, nullable=True)
    version = Column(Integer, nullable=False, server_default="1")
    script_type = Column(
        ENUM(ScriptType, name="script_type", create_type=False),
        nullable=False,
        default=ScriptType.GDSCRIPT,
    )
    dsl_payload = Column(JSONB, nullable=True)
    created_at = Column(DateTime(timezone=True), server_default=func.now())
    updated_at = Column(DateTime(timezone=True), server_default=func.now(), onupdate=func.now())

    owner = relationship("User", back_populates="scripts")
    world = relationship("World", back_populates="scripts")