from pydantic import BaseModel, Field
from typing import Optional


class CourseRequest(BaseModel):
    course_id: str = Field(..., description='课程编号')
    course_name: str = Field(..., description='课程名称')
    teacher_id: Optional[str] = Field(None, description='授课教师编号')


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