import uuid
from datetime import datetime

from sqlalchemy import DateTime, ForeignKey, Integer, UniqueConstraint, func
from sqlalchemy.dialects.postgresql import JSONB, UUID
from sqlalchemy.orm import Mapped, mapped_column

from app.db.base_class import Base


class StudySetupConfig(Base):
    __tablename__ = "study_setup_configs"
    __table_args__ = (UniqueConstraint("study_id", name="uq_study_setup_config_study"),)

    id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    study_id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), ForeignKey("studies.id"), nullable=False, index=True)
    version: Mapped[int] = mapped_column(Integer, nullable=False, default=1)
    config: Mapped[dict] = mapped_column(JSONB, nullable=False)
    publish_status: Mapped[str] = mapped_column(default="DRAFT", nullable=False)
    published_config: Mapped[dict | None] = mapped_column(JSONB, nullable=True)
    published_project_snapshot: Mapped[dict | None] = mapped_column(JSONB, nullable=True)
    published_by: Mapped[uuid.UUID | None] = mapped_column(UUID(as_uuid=True), ForeignKey("users.id"), nullable=True)
    published_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
    saved_by: Mapped[uuid.UUID | None] = mapped_column(UUID(as_uuid=True), ForeignKey("users.id"), nullable=True)
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=False, server_default=func.now())
    updated_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), nullable=False, server_default=func.now(), onupdate=func.now()
    )