"""人物模型。"""

from datetime import datetime

from sqlalchemy import Boolean, DateTime, String, Text
from sqlalchemy.orm import Mapped, mapped_column

from app.core.ids import new_character_id
from app.core.time import utc_now
from app.db.base import Base


class Character(Base):
    __tablename__ = "characters"

    id: Mapped[str] = mapped_column(String(80), primary_key=True, default=new_character_id)
    name: Mapped[str] = mapped_column(String(120), nullable=False)
    display_name: Mapped[str | None] = mapped_column(String(120))
    status: Mapped[str] = mapped_column(String(40), nullable=False, default="active", index=True)
    language: Mapped[str] = mapped_column(String(20), nullable=False, default="zh-CN")
    profile_json: Mapped[str] = mapped_column(Text, nullable=False, default="{}")
    model_policy_json: Mapped[str] = mapped_column(Text, nullable=False, default="{}")
    safety_policy_id: Mapped[str | None] = mapped_column(String(80))
    # 道体恒定层（设计理念 §2.1）：不可运行时覆盖的人格内核快照，
    # 由铸魂确认流 / 用户确认 / 酒馆卡降生写入，组装运行时契约时做完整性校验。
    personality_summary: Mapped[str | None] = mapped_column(Text)
    mission: Mapped[str | None] = mapped_column(Text)
    safety_guidelines: Mapped[str | None] = mapped_column(Text)
    current_mood_id: Mapped[str | None] = mapped_column(String(80))
    privacy_level: Mapped[str] = mapped_column(String(40), nullable=False, default="normal")
    owner_scope: Mapped[str] = mapped_column(String(80), nullable=False, index=True)
    is_system_template: Mapped[bool] = mapped_column(
        Boolean, nullable=False, default=False, index=True
    )
    source_template_id: Mapped[str | None] = mapped_column(String(80), index=True)
    template_key: Mapped[str | None] = mapped_column(String(80), index=True)
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=utc_now)
    updated_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), default=utc_now, onupdate=utc_now
    )
    activated_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
    archived_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
    # ── rewrite/1.0 镜生域增量列（data-model.md §1）：来源、道体锚点、死亡与冷静期 ──
    source: Mapped[str] = mapped_column(
        String(40), nullable=False, default="original", server_default="original", index=True
    )
    identity_baseline_json: Mapped[str] = mapped_column(
        Text, nullable=False, default="{}", server_default="{}"
    )
    death_requested_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
    calm_period_until: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
    died_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))