# schemas/employ_schema.py
# 学生就业管理模块的 Pydantic 模式

from datetime import date
from decimal import Decimal
from typing import Optional

from pydantic import BaseModel, ConfigDict, Field


class EmployBase(BaseModel):
    """就业信息公共字段"""
    emp_open_time: Optional[date] = Field(default=None, description="就业开放时间")
    send_offer_time: Optional[date] = Field(default=None, description="收到Offer时间")
    emp_company: Optional[str] = Field(default=None, max_length=50, description="就业公司名称")
    salary: Optional[Decimal] = Field(default=None, ge=0, description="薪资(月薪/元)")


class EmployCreate(EmployBase):
    """新增就业记录时，stu_id 必填（与学生一对一）"""
    stu_id: str = Field(..., max_length=15, description="学生编号(主键)")


class EmployUpdate(BaseModel):
    """更新就业信息：仅更新传入的字段"""
    emp_open_time: Optional[date] = Field(default=None, description="就业开放时间")
    send_offer_time: Optional[date] = Field(default=None, description="收到Offer时间")
    emp_company: Optional[str] = Field(default=None, max_length=50, description="就业公司名称")
    salary: Optional[Decimal] = Field(default=None, ge=0, description="薪资(月薪/元)")


class EmployOut(EmployBase):
    """就业响应模型（含 stu_id 与软删除标记）"""
    stu_id: str
    is_deleted: int

    model_config = ConfigDict(from_attributes=True)