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"""
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点名相关API路由
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"""
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from fastapi import APIRouter, Depends, HTTPException
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from sqlalchemy.orm import Session
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from datetime import datetime
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from backend.database import get_db
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from backend.models import Student, RollCallRecord, ScoreRecord
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from backend.schemas import (
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RollCallRequest, RollCallResult, RollCallRecordCreate,
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RollCallRecordResponse
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)
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from backend.utils.probability import get_random_student, get_next_order_student
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from backend.utils.events import trigger_random_event
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from typing import Optional, List
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router = APIRouter(prefix="/api/rollcall", tags=["rollcall"])
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# 存储当前顺序点名的学生ID（简单实现，生产环境应使用Redis等）
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current_order_student_id: Optional[int] = None
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@router.post("/start", response_model=RollCallResult)
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def start_rollcall(request: RollCallRequest, db: Session = Depends(get_db)):
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"""开始点名"""
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global current_order_student_id
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try:
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if request.rollcall_type == "random":
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# 随机点名
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student = get_random_student(db)
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student.random_rollcall_count += 1
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elif request.rollcall_type == "order":
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# 顺序点名
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student = get_next_order_student(db, current_order_student_id)
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current_order_student_id = student.id
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student.order_rollcall_count += 1
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else:
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raise HTTPException(status_code=400, detail="无效的点名类型")
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db.commit()
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return RollCallResult(
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student_id=student.id,
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student_code=student.student_id,
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name=student.name,
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major=student.major,
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total_score=student.total_score,
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random_rollcall_count=student.random_rollcall_count
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)
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except ValueError as e:
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raise HTTPException(status_code=400, detail=str(e))
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except Exception as e:
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db.rollback()
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raise HTTPException(status_code=500, detail=f"点名失败: {str(e)}")
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@router.post("/record", response_model=RollCallRecordResponse)
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def record_rollcall(record: RollCallRecordCreate, db: Session = Depends(get_db)):
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"""记录点名结果并更新积分"""
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student = db.query(Student).filter(Student.id == record.student_id).first()
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if not student:
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raise HTTPException(status_code=404, detail="学生不存在")
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# 触发随机事件
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event = trigger_random_event()
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event_multiplier = event["multiplier"]
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# 计算积分变化
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attendance_score = 1.0 if record.is_present else 0.0
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question_repeat_score = record.question_repeat_score # -1, 0, 0.5
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answer_score: float = record.answer_score # 0-3
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# 应用事件倍数
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total_score_change = (
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(attendance_score + question_repeat_score + answer_score) * event_multiplier
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)
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# 更新学生积分
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student.total_score += total_score_change
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# 检查转移权（被点名两次后获得一次转移权）
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total_rollcall_count = student.random_rollcall_count + student.order_rollcall_count
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if total_rollcall_count % 2 == 0 and total_rollcall_count > 0:
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student.transfer_right_count += 1
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# 创建点名记录
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rollcall_record = RollCallRecord(
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student_id=record.student_id,
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rollcall_type=record.rollcall_type,
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is_present=record.is_present,
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question_repeat_score=question_repeat_score,
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answer_score=answer_score,
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attendance_score=attendance_score,
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total_score_change=total_score_change,
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event_type=event["type"]
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)
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db.add(rollcall_record)
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# 创建积分记录
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score_record = ScoreRecord(
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student_id=record.student_id,
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score_change=total_score_change,
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reason=f"点名记录: {event['name']}"
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)
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db.add(score_record)
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db.commit()
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db.refresh(rollcall_record)
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tmp = RollCallRecordResponse(
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id=rollcall_record.id,
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student_id=student.id,
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student_code=student.student_id,
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student_name=student.name,
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rollcall_type=rollcall_record.rollcall_type,
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is_present=rollcall_record.is_present,
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total_score_change=rollcall_record.total_score_change,
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created_at=rollcall_record.created_at
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)
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print(tmp.model_dump_json())
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return RollCallRecordResponse(
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id=rollcall_record.id,
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student_id=student.id,
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student_code=student.student_id,
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student_name=student.name,
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rollcall_type=rollcall_record.rollcall_type,
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is_present=rollcall_record.is_present,
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total_score_change=rollcall_record.total_score_change,
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created_at=rollcall_record.created_at
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)
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@router.get("/records", response_model=List[RollCallRecordResponse])
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def get_rollcall_records(skip: int = 0, limit: int = 100, db: Session = Depends(get_db)):
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"""获取点名记录列表"""
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records = (
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db.query(RollCallRecord)
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.join(Student)
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.offset(skip)
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.limit(limit)
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.order_by(RollCallRecord.created_at.desc())
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.all()
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)
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result = []
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for record in records:
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result.append(RollCallRecordResponse(
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id=record.id,
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student_id=record.student_id,
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student_code=record.student.student_id,
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student_name=record.student.name,
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rollcall_type=record.rollcall_type,
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is_present=record.is_present,
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total_score_change=record.total_score_change,
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created_at=record.created_at
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))
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return result
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@router.post("/transfer")
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def transfer_rollcall(request_data: dict, db: Session = Depends(get_db)):
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"""转移点名（使用转移权）"""
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from_student_id = request_data.get("from_student_id")
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to_student_id = request_data.get("to_student_id")
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if not from_student_id or not to_student_id:
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raise HTTPException(status_code=400, detail="缺少必要参数")
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from_student = db.query(Student).filter(Student.id == from_student_id).first()
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to_student = db.query(Student).filter(Student.id == to_student_id).first()
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if not from_student or not to_student:
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raise HTTPException(status_code=404, detail="学生不存在")
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if from_student.transfer_right_count <= 0:
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raise HTTPException(status_code=400, detail="没有可用的转移权")
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# 使用转移权
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from_student.transfer_right_count -= 1
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db.commit()
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return {
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"message": "转移成功",
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"from_student": from_student.name,
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"to_student": to_student.name,
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"remaining_transfer_rights": from_student.transfer_right_count
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}
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