from pydantic import BaseModel, Field
from typing import List


class StudentCreate(BaseModel):
    first_name: str = Field(..., min_length=1)
    age: int = Field(..., ge=8, le=12)
    grade: str


class StudentRead(BaseModel):
    id: int
    first_name: str
    age: int
    grade: str

    class Config:
        from_attributes = True


class ChatRequest(BaseModel):
    student_id: int
    message: str


class ChatResponse(BaseModel):
    reply: str
    should_speak: bool = True


class SkillProgress(BaseModel):
    code: str
    subject: str
    label: str
    mastery_score: float
    confidence: float
    evidence_count: int


class ProgressResponse(BaseModel):
    student: StudentRead
    progress: List[SkillProgress]


class AssessmentQuestionResponse(BaseModel):
    skill_code: str
    skill_label: str
    question: str


class AssessmentAnswerRequest(BaseModel):
    student_id: int
    skill_code: str
    answer: str


class AssessmentAnswerResponse(BaseModel):
    correct: bool
    feedback: str
    mastery_score: float