"""育种计划 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 PlanModel(ModelMixin, UserMixin, MappedBase):
    """育种计划 主数据表。"""

    __tablename__ = "bre_plan"

    plan_code: Mapped[str] = mapped_column(String(64), nullable=False, comment="计划编号")

    plan_name: Mapped[str] = mapped_column(String(128), nullable=False, comment="计划名称")

    objective: Mapped[str | None] = mapped_column(Text, nullable=True, comment="计划目标", default=None)

    start_year: Mapped[int | None] = mapped_column(Integer, nullable=True, comment="起始年份", default=None)

    end_year: Mapped[int | None] = mapped_column(Integer, nullable=True, comment="结束年份", default=None)

    leader: Mapped[str | None] = mapped_column(String(64), nullable=True, comment="负责人", 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_plan_created_deleted", "created_time", "is_deleted"),
    )