from fastapi import FastAPI
from pydantic import BaseModel
import sys
import os

# allow importing from src
sys.path.append(os.path.abspath("src"))

from query_engine import QueryEngine

app = FastAPI()

engine = QueryEngine()


class QueryRequest(BaseModel):
    query: str
    top_k: int = 5


@app.get("/")
def home():
    return {"message": "Semantic Search Cache API running"}


@app.post("/query")
def search(request: QueryRequest):

    result = engine.search(request.query, request.top_k)

    return result


@app.get("/cache/stats")
def cache_stats():

    return engine.cache_stats()


@app.delete("/cache")
def clear_cache():

    engine.clear_cache()

    return {"message": "Cache cleared"}