from __future__ import annotations
from fastapi import APIRouter, Depends, HTTPException, Query
from sqlalchemy.orm import Session
from sqlalchemy import func as sqlfunc

from app.database import get_db
from app.auth import get_current_user
from app.models.review import Review, ReviewSummary
from app.schemas.review import ReviewSchema, ReviewResponse, ReviewListResponse, ReviewSummarySchema

router = APIRouter(prefix="/api/reviews", tags=["客户评价"], dependencies=[Depends(get_current_user)])


@router.get("/summary", response_model=ReviewSummarySchema)
def get_summary(db: Session = Depends(get_db)):
    summary = db.query(ReviewSummary).first()
    if not summary:
        return ReviewSummarySchema()
    return ReviewSummarySchema(total_count=summary.total_count, approval_rate=summary.approval_rate, keywords=summary.keywords or [])


@router.put("/summary")
def update_summary(req: ReviewSummarySchema, db: Session = Depends(get_db)):
    summary = db.query(ReviewSummary).first()
    if not summary:
        summary = ReviewSummary()
        db.add(summary)
    summary.total_count = req.total_count
    summary.approval_rate = req.approval_rate
    summary.keywords = req.keywords
    db.commit()
    return {"message": "评价概要更新成功"}


@router.get("/", response_model=ReviewListResponse)
def list_reviews(
    page: int = Query(1, ge=1),
    page_size: int = Query(20, ge=1, le=100),
    keyword: str = Query("", description="搜索关键词"),
    db: Session = Depends(get_db),
):
    query = db.query(Review)
    if keyword:
        query = query.filter(Review.nickname.contains(keyword) | Review.content.contains(keyword))
    total = query.count()
    items = query.order_by(Review.sort_order, Review.id).offset((page - 1) * page_size).limit(page_size).all()
    return ReviewListResponse(
        items=[ReviewResponse.model_validate(r) for r in items],
        total=total,
    )


@router.post("/", response_model=ReviewResponse, status_code=201)
def create_review(req: ReviewSchema, db: Session = Depends(get_db)):
    max_order = db.query(sqlfunc.max(Review.sort_order)).scalar() or 0
    review = Review(
        nickname=req.nickname,
        travel_date=req.travel_date,
        product_version=req.product_version,
        screenshot=req.screenshot,
        content=req.content,
        scenes=req.scenes,
        concerns=req.concerns,
        is_visible=req.is_visible,
        sort_order=max_order + 1,
    )
    db.add(review)
    db.commit()
    db.refresh(review)
    return ReviewResponse.model_validate(review)


@router.put("/{review_id}", response_model=ReviewResponse)
def update_review(review_id: int, req: ReviewSchema, db: Session = Depends(get_db)):
    review = db.query(Review).get(review_id)
    if not review:
        raise HTTPException(status_code=404, detail="评价不存在")
    for key, val in req.model_dump().items():
        setattr(review, key, val)
    db.commit()
    db.refresh(review)
    return ReviewResponse.model_validate(review)


@router.delete("/{review_id}")
def delete_review(review_id: int, db: Session = Depends(get_db)):
    review = db.query(Review).get(review_id)
    if not review:
        raise HTTPException(status_code=404, detail="评价不存在")
    db.delete(review)
    db.commit()
    return {"message": "删除成功"}


@router.put("/reorder/batch")
def reorder_reviews(ids: list[int], db: Session = Depends(get_db)):
    for i, rid in enumerate(ids):
        db.query(Review).filter(Review.id == rid).update({"sort_order": i})
    db.commit()
    return {"message": "排序更新成功"}