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

from app.core.db import Base, utc_now


class User(Base):
    __tablename__ = "users"

    id = Column(String, primary_key=True)
    phone = Column(String, unique=True, nullable=False, index=True)
    password_hash = Column(String, nullable=False)
    email = Column(String, unique=True, nullable=True)
    openid = Column(String, unique=True, nullable=True)
    nickname = Column(String, nullable=False)
    avatar_url = Column(String, nullable=True)
    subscription_type = Column(String, default="free")
    subscription_expires_at = Column(DateTime(timezone=True), nullable=True)
    created_at = Column(DateTime(timezone=True), default=utc_now)
    birth_year = Column(Integer, nullable=True)
    birth_place = Column(String, nullable=True)
    grew_up_place = Column(String, nullable=True)
    occupation = Column(String, nullable=True)
    language_preference = Column(
        String(8), nullable=False, default="zh", server_default="zh"
    )

    conversations = relationship("Conversation", back_populates="user")
    chapters = relationship("Chapter", back_populates="user")
    stories = relationship("Story", back_populates="user")
    books = relationship("Book", back_populates="user")
    orders = relationship("Order", back_populates="user", cascade="all, delete-orphan")
    memoir_state = relationship(
        "MemoirState",
        back_populates="user",
        uselist=False,
        cascade="all, delete-orphan",
    )
    refresh_tokens = relationship(
        "RefreshToken", back_populates="user", cascade="all, delete-orphan"
    )