"""搜索路由"""
from typing import Optional
from fastapi import APIRouter, Depends, Query
from sqlalchemy.orm import Session
from sqlalchemy import or_

from database import get_db
from models.user import User
from models.post import Post
from schemas.post import PostResponse, PostListResponse
from routers.auth import get_current_user
from routers.posts import _enrich_post

router = APIRouter()


@router.get("", response_model=PostListResponse)
def search_posts(
    q: str = Query(..., min_length=1, description="搜索关键词"),
    category: Optional[str] = None,
    page: int = Query(1, ge=1),
    page_size: int = Query(20, ge=1, le=100),
    current_user: User = Depends(get_current_user),
    db: Session = Depends(get_db),
):
    """全文搜索帖子"""
    query = db.query(Post).filter(
        or_(Post.is_public == True, Post.user_id == current_user.id),
        or_(
            Post.title.contains(q),
            Post.content.contains(q),
            Post.tags.contains(q),
        ),
    )

    if category:
        query = query.filter(Post.category == category)

    total = query.count()
    posts = query.order_by(Post.created_at.desc()).offset((page - 1) * page_size).limit(page_size).all()

    return PostListResponse(
        items=[_enrich_post(p, db, current_user.id) for p in posts],
        total=total,
        page=page,
        page_size=page_size,
    )