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/projects", tags=["Projects"])


@router.get("", response_model=list[schemas.ProjectOut])
def list_projects(status_filter: str | None = None, db: Session = Depends(get_db)):
    query = db.query(models.Project)
    if status_filter:
        query = query.filter(models.Project.status == status_filter)
    return query.order_by(models.Project.order).all()


@router.get("/{slug}", response_model=schemas.ProjectOut)
def get_project(slug: str, db: Session = Depends(get_db)):
    project = db.query(models.Project).filter(models.Project.slug == slug).first()
    if not project:
        raise HTTPException(status.HTTP_404_NOT_FOUND, "پروژه پیدا نشد")
    return project


@router.post("", response_model=schemas.ProjectOut, status_code=status.HTTP_201_CREATED)
def create_project(
    payload: schemas.ProjectCreate,
    db: Session = Depends(get_db),
    _admin=Depends(get_current_admin),
):
    if db.query(models.Project).filter(models.Project.slug == payload.slug).first():
        raise HTTPException(status.HTTP_400_BAD_REQUEST, "این slug قبلاً استفاده شده است")
    project = models.Project(**payload.model_dump())
    db.add(project)
    db.commit()
    db.refresh(project)
    return project


@router.put("/{project_id}", response_model=schemas.ProjectOut)
def update_project(
    project_id: int,
    payload: schemas.ProjectUpdate,
    db: Session = Depends(get_db),
    _admin=Depends(get_current_admin),
):
    project = db.get(models.Project, project_id)
    if not project:
        raise HTTPException(status.HTTP_404_NOT_FOUND, "پروژه پیدا نشد")
    for field, value in payload.model_dump(exclude_unset=True).items():
        setattr(project, field, value)
    db.commit()
    db.refresh(project)
    return project


@router.delete("/{project_id}", status_code=status.HTTP_204_NO_CONTENT)
def delete_project(
    project_id: int,
    db: Session = Depends(get_db),
    _admin=Depends(get_current_admin),
):
    project = db.get(models.Project, project_id)
    if not project:
        raise HTTPException(status.HTTP_404_NOT_FOUND, "پروژه پیدا نشد")
    db.delete(project)
    db.commit()
    return None