from pydantic import BaseModel,Field
from datetime import date,datetime
from typing import List

#班级基础信息请求体
class ClassBase(BaseModel):
    num:str|None = Field(None,description='班级编号')
    name:str|None = Field(None,description='班级名称')
    head_teacher_id:int|None = Field(None,description='班主任编号(teacher表id)')
    coach_teacher_id:int|None = Field(None,description='授课老师编号(teacher表id)')
    tutor_teacher_id:int|None = Field(None,description='助教老师编号(teacher表id)')
    class_start_time:date|None = Field(None,description='开班日期 YYYY‑MM‑DD')
    class_end_time:date|None = Field(None,description='结课日期 YYYY‑MM‑DD')

#新增班级请求体：num,name必填，其余继承父类ClassBase
class ClassCreate(ClassBase):
    num:str = Field(...,description='班级编号')
    name:str = Field(...,description='班级名称')

#修改班级请求体,继承ClassBase,全部字段可选，传哪个就更新哪个
class ClassUpdate(ClassBase):
    pass



class ClassResponse(BaseModel):
    code:int = 200
    detail:str = 'OK'
    totals:int = 0
    data:str|dict|tuple|list