from __future__ import annotations

from datetime import datetime
from typing import Optional

from sqlalchemy import Integer, String, Text, DateTime, ForeignKey, func, JSON
from sqlalchemy.orm import Mapped, mapped_column, relationship

from db.base import Base


class PageConfig(Base):
    __tablename__ = "page_configs"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)

    post_id: Mapped[int] = mapped_column(
        Integer,
        ForeignKey("posts.id", ondelete="CASCADE"),
        unique=True,
        nullable=False,
    )

    features: Mapped[dict] = mapped_column(
        JSON, nullable=False, server_default="{}"
    )

    # Phase 3: per-page SumUp credentials (NULL until configured)
    sumup_merchant_code: Mapped[Optional[str]] = mapped_column(String(64), nullable=True)
    sumup_api_key: Mapped[Optional[str]] = mapped_column(Text(), nullable=True)
    sumup_checkout_prefix: Mapped[Optional[str]] = mapped_column(String(64), 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()
    )
    deleted_at: Mapped[Optional[datetime]] = mapped_column(
        DateTime(timezone=True), nullable=True
    )

    post: Mapped["Post"] = relationship(
        "Post", back_populates="page_config", foreign_keys=[post_id]
    )