from fastapi import APIRouter, Depends, HTTPException, status
from sqlalchemy.orm import Session

from app.auth import get_current_admin
from app.database import get_db
from app import models, schemas

router = APIRouter(prefix="/api/newsletter", tags=["Newsletter"])


@router.post("", response_model=schemas.NewsletterOut, status_code=status.HTTP_201_CREATED)
def subscribe(payload: schemas.NewsletterCreate, db: Session = Depends(get_db)):
    """اندپوینت عمومی — فرم خبرنامه سایت این را صدا می‌زند."""
    existing = db.query(models.NewsletterSubscriber).filter(
        models.NewsletterSubscriber.email == payload.email
    ).first()
    if existing:
        raise HTTPException(status.HTTP_400_BAD_REQUEST, "این ایمیل قبلاً ثبت شده است")
    sub = models.NewsletterSubscriber(email=payload.email)
    db.add(sub)
    db.commit()
    db.refresh(sub)
    return sub


@router.get("", response_model=list[schemas.NewsletterOut])
def list_subscribers(
    db: Session = Depends(get_db),
    _admin=Depends(get_current_admin),
):
    """فقط ادمین: لیست همه مشترکین خبرنامه."""
    return db.query(models.NewsletterSubscriber).order_by(
        models.NewsletterSubscriber.created_at.desc()
    ).all()


@router.delete("/{sub_id}", status_code=status.HTTP_204_NO_CONTENT)
def delete_subscriber(
    sub_id: int,
    db: Session = Depends(get_db),
    _admin=Depends(get_current_admin),
):
    sub = db.get(models.NewsletterSubscriber, sub_id)
    if not sub:
        raise HTTPException(status.HTTP_404_NOT_FOUND, "مشترک پیدا نشد")
    db.delete(sub)
    db.commit()
    return None