"""签到记录表。

每次签到一行,(user_id, signin_date) 唯一,天然防一天签两次。
  - cycle_day: 1..7,7 天循环里今天落在第几档,决定发多少金币;断签后重置回 1
              (周期长度 = rewards.SIGNIN_CYCLE_LEN,2026-06 由 14 天改 7 天一轮)。
  - streak:   连续签到天数(不封顶),用于"已连续签到 N 天"展示;断签后重置回 1。
"""
from __future__ import annotations

from datetime import date, datetime

from sqlalchemy import Date, DateTime, ForeignKey, Integer, String, UniqueConstraint, func
from sqlalchemy.orm import Mapped, mapped_column

from app.db.base import Base


class SigninRecord(Base):
    __tablename__ = "signin_record"
    __table_args__ = (
        UniqueConstraint("user_id", "signin_date", name="uq_signin_user_date"),
    )

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    user_id: Mapped[int] = mapped_column(
        Integer, ForeignKey("user.id"), index=True, nullable=False
    )
    # 签到日期(北京时间的 date)
    signin_date: Mapped[date] = mapped_column(Date, nullable=False)
    cycle_day: Mapped[int] = mapped_column(Integer, nullable=False)
    streak: Mapped[int] = mapped_column(Integer, nullable=False)
    coin_awarded: Mapped[int] = mapped_column(Integer, nullable=False)

    created_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), server_default=func.now(), nullable=False
    )

    def __repr__(self) -> str:  # pragma: no cover
        return (
            f"<SigninRecord user_id={self.user_id} date={self.signin_date} "
            f"day={self.cycle_day} streak={self.streak}>"
        )


class SigninBoostRecord(Base):
    """签到后看广告膨胀记录。

    一天最多膨胀一次,补发金额等于当天签到原始奖励。独立表用于防并发重复补发,
    后续接入真实 S2S 广告 session 时可把 ad_ref_id 回填为广告会话/交易号。
    """

    __tablename__ = "signin_boost_record"
    __table_args__ = (
        UniqueConstraint("user_id", "signin_date", name="uq_signin_boost_user_date"),
    )

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    user_id: Mapped[int] = mapped_column(
        Integer, ForeignKey("user.id"), index=True, nullable=False
    )
    signin_date: Mapped[date] = mapped_column(Date, nullable=False)
    coin_awarded: Mapped[int] = mapped_column(Integer, nullable=False)
    ad_ref_id: Mapped[str | None] = mapped_column(String(64), nullable=True)

    created_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), server_default=func.now(), nullable=False
    )

    def __repr__(self) -> str:  # pragma: no cover
        return f"<SigninBoostRecord user_id={self.user_id} date={self.signin_date} coin={self.coin_awarded}>"