from fastapi import APIRouter, HTTPException, Depends
from sqlalchemy.orm import Session
from typing import List
from app.models.community import CommunityDB, CommunityCreate, CommunityUpdate, CommunityInfo
from app.models.database import get_db

router = APIRouter()

@router.post("/", response_model=CommunityInfo)
async def create_community(
    community: CommunityCreate,
    db: Session = Depends(get_db)
):
    """创建社区"""
    db_community = CommunityDB(**community.model_dump())
    db.add(db_community)
    db.commit()
    db.refresh(db_community)
    return db_community

@router.get("/", response_model=List[CommunityInfo])
async def get_communities(
    skip: int = 0,
    limit: int = 10,
    db: Session = Depends(get_db)
):
    """获取社区列表"""
    communities = db.query(CommunityDB).offset(skip).limit(limit).all()
    return communities

@router.get("/{community_id}", response_model=CommunityInfo)
async def get_community(
    community_id: int,
    db: Session = Depends(get_db)
):
    """获取社区详情"""
    community = db.query(CommunityDB).filter(CommunityDB.id == community_id).first()
    if not community:
        raise HTTPException(status_code=404, detail="社区不存在")
    return community

@router.put("/{community_id}", response_model=CommunityInfo)
async def update_community(
    community_id: int,
    community: CommunityUpdate,
    db: Session = Depends(get_db)
):
    """更新社区信息"""
    db_community = db.query(CommunityDB).filter(CommunityDB.id == community_id).first()
    if not db_community:
        raise HTTPException(status_code=404, detail="社区不存在")
    
    update_data = community.model_dump(exclude_unset=True)
    for key, value in update_data.items():
        setattr(db_community, key, value)
    
    db.commit()
    db.refresh(db_community)
    return db_community

@router.delete("/{community_id}")
async def delete_community(
    community_id: int,
    db: Session = Depends(get_db)
):
    """删除社区"""
    result = db.query(CommunityDB).filter(CommunityDB.id == community_id).delete()
    if not result:
        raise HTTPException(status_code=404, detail="社区不存在")
    
    db.commit()
    return {"message": "社区已删除"}