from pydantic import BaseModel, Field, field_validator


class GradeRequest(BaseModel):
    stu_id:int = Field(description="学生编号")
    exam_order:int = Field(description='考核序次')
    score:float = Field(description='成绩')

    @field_validator("score")
    def check_score(cls, v):
        if not (0 <= v <= 100):
            raise ValueError("成绩必须在0~100之间")
        return v

    @field_validator("exam_order")
    def check_exam_order(cls, v):
        if v <= 0:
            raise ValueError("考核序次必须大于0")
        return v

class GradeResponse(BaseModel):
    code: int = 200
    detail: str = 'OK'
    score_id: float
    stu_id:int
    exam_order:int
    score:float