# api/employ_api.py
# 学生就业管理模块：接口层只负责 HTTP 出入参，查库/校验/事务交给 dao.employ_dao

from typing import Optional

from fastapi import APIRouter, Depends, Query
from sqlalchemy.orm import Session

from dao import employ_dao
from database import get_db
from schemas.employ_schema import EmployCreate, EmployUpdate, EmployOut

router = APIRouter()


@router.get("", summary="分页查询就业记录")
def list_employ(
    page: int = Query(1, ge=1, description="页码"),
    size: int = Query(10, ge=1, le=100, description="每页数量"),
    emp_company: Optional[str] = Query(None, description="按公司名称模糊查询"),
    employed: Optional[bool] = Query(None, description="是否已就业(true/false)"),
    db: Session = Depends(get_db),
):
    total, items = employ_dao.list_employ(
        db, page=page, size=size, emp_company=emp_company, employed=employed
    )
    return {
        "total": total,
        "page": page,
        "size": size,
        "items": [EmployOut.model_validate(x) for x in items],
    }


@router.get("/{stu_id}", summary="查询单个学生的就业信息")
def get_employ(stu_id: str, db: Session = Depends(get_db)):
    """查询就业详情，附带学生姓名。"""
    emp = employ_dao.assert_employ_alive(db, stu_id)
    data = EmployOut.model_validate(emp).model_dump()
    data["student_name"] = emp.stu.name if emp.stu else None
    return data


@router.post("", response_model=EmployOut, status_code=201, summary="新增就业记录")
def create_employ(payload: EmployCreate, db: Session = Depends(get_db)):
    """新增就业记录（学生必须存在，且一对一不可重复，由 DAO 校验）。"""
    return employ_dao.create_employ(db, payload.model_dump())


@router.put("/{stu_id}", response_model=EmployOut, summary="更新就业信息")
def update_employ(stu_id: str, payload: EmployUpdate, db: Session = Depends(get_db)):
    """按传入字段局部更新就业信息。"""
    return employ_dao.update_employ(db, stu_id, payload.model_dump(exclude_unset=True))


@router.delete("/{stu_id}", summary="删除就业记录(软删除)")
def delete_employ(stu_id: str, db: Session = Depends(get_db)):
    """软删除就业记录。"""
    employ_dao.soft_delete_employ(db, stu_id)
    return {"message": "删除成功", "stu_id": stu_id}