"""搜索接口路由。"""
from __future__ import annotations

import logging

from fastapi import APIRouter, HTTPException, Query

from app.schemas import SearchRequest, SearchResponse
from app.services.cache import faq_cache
from app.services.zendesk_client import ZendeskError, search_articles

logger = logging.getLogger(__name__)

router = APIRouter(tags=["search"])


async def _do_search(req: SearchRequest) -> SearchResponse:
    """共享的搜索逻辑：使用内存中的 FAQ sec_ids 调用 Zendesk。"""
    snapshot = faq_cache.snapshot()
    sec_ids: list[int] = snapshot["sec_ids"]

    if not sec_ids:
        logger.warning("FAQ sec_ids 缓存为空，本次搜索不带 section 过滤")

    try:
        data = await search_articles(
            query=req.query,
            section_ids=sec_ids,
            locale=req.locale,
            page=req.page,
            per_page=req.per_page,
        )
    except ZendeskError as exc:
        raise HTTPException(status_code=502, detail=str(exc)) from exc

    return SearchResponse(
        success=True,
        query=req.query,
        count=int(data.get("count", 0)),
        page=req.page,
        per_page=req.per_page,
        next_page=data.get("next_page"),
        sec_ids_used=sec_ids,
        results=data.get("results", []),
    )


@router.get("/search", response_model=SearchResponse, summary="按 QUERY 搜索 FAQ 文章")
async def search_get(
    query: str = Query(..., min_length=1, description="搜索关键词"),
    locale: str | None = Query(default=None),
    page: int = Query(default=1, ge=1),
    per_page: int = Query(default=25, ge=1, le=100),
) -> SearchResponse:
    """GET 版本，便于浏览器直接测试。"""
    return await _do_search(
        SearchRequest(
            query=query, locale=locale, page=page, per_page=per_page
        )
    )


@router.post("/search", response_model=SearchResponse, summary="按 QUERY 搜索 FAQ 文章 (POST)")
async def search_post(req: SearchRequest) -> SearchResponse:
    """POST 版本，请求体：{"query": "...", "locale": "...", ...}。"""
    return await _do_search(req)