"""系谱管理 数据模型"""
from datetime import datetime

from sqlalchemy import Float, ForeignKey, Index, Integer, String, Text
from sqlalchemy.orm import Mapped, mapped_column

from app.core.base_model import MappedBase, ModelMixin, UserMixin


class PedigreeModel(ModelMixin, UserMixin, MappedBase):
    """系谱管理 主数据表。"""

    __tablename__ = "bre_pedigree"

    combination_id: Mapped[int] = mapped_column(
        Integer, ForeignKey("bre_cross_combination.id", ondelete="CASCADE"),
        index=True, nullable=False, comment="来源杂交组合"
    )

    child_code: Mapped[str] = mapped_column(String(64), nullable=False, comment="子代种质编号")

    dam_id: Mapped[int | None] = mapped_column(
        Integer, ForeignKey("bre_germplasm.id", ondelete="SET NULL"),
        index=True, nullable=True, comment="母本(种质)"
    )

    sire_id: Mapped[int | None] = mapped_column(
        Integer, ForeignKey("bre_germplasm.id", ondelete="SET NULL"),
        index=True, nullable=True, comment="父本(种质)"
    )

    generation: Mapped[str | None] = mapped_column(String(16), nullable=True, comment="世代", default=None)

    remark: Mapped[str | None] = mapped_column(Text, nullable=True, comment="备注", default=None)

    # 无 status 列：覆盖基类默认 ix_<表>_status_deleted 索引，
    # 仅保留 (created_time, is_deleted) 复合索引用于数据权限过滤。
    __table_args__ = (
        Index("ix_bre_pedigree_created_deleted", "created_time", "is_deleted"),
    )