"""引导视频待播放计划、起播快照与逐圈结算状态。"""
from __future__ import annotations

from datetime import datetime

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

from app.db.base import Base


class GuideVideoPlay(Base):
    __tablename__ = "guide_video_play"
    __table_args__ = (
        UniqueConstraint("play_token", name="uq_guide_video_play_token"),
        Index(
            "uq_guide_video_play_user_scene_seq",
            "user_id",
            "scene",
            "seq",
            unique=True,
        ),
    )

    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
    )
    play_token: Mapped[str] = mapped_column(String(64), nullable=False)
    scene: Mapped[str] = mapped_column(String(16), nullable=False, default="coupon")
    # prepare 不占次数，seq=NULL；start 成功才写入 1-based seq。
    seq: Mapped[int | None] = mapped_column(Integer, nullable=True)
    video_url: Mapped[str | None] = mapped_column(String(512), nullable=True)
    coin: Mapped[int] = mapped_column(Integer, nullable=False, default=0)
    duration_ms: Mapped[int] = mapped_column(Integer, nullable=False, default=0)
    config_version: Mapped[int] = mapped_column(Integer, nullable=False, default=0)
    settled_circles: Mapped[int] = mapped_column(Integer, nullable=False, default=0)
    # prepared / started / completed / legacy_completed / legacy_closed
    status: Mapped[str] = mapped_column(String(24), nullable=False, default="prepared")
    completed: Mapped[int] = mapped_column(Integer, nullable=False, default=0)

    prepared_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), server_default=func.now(), nullable=False
    )
    expires_at: Mapped[datetime | None] = mapped_column(
        DateTime(timezone=True), index=True, nullable=True
    )
    started_at: Mapped[datetime | None] = mapped_column(
        DateTime(timezone=True), index=True, nullable=True
    )
    granted_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)

    def __repr__(self) -> str:  # pragma: no cover
        return (
            f"<GuideVideoPlay user={self.user_id} scene={self.scene} seq={self.seq} "
            f"{self.status} circles={self.settled_circles}>"
        )