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import pandas as pd
import gradio as gr
from retriever import get_relevant_passages
from reranker import rerank
from fastapi import FastAPI, Request
from fastapi.responses import JSONResponse
from fastapi.middleware.cors import CORSMiddleware
from gradio.routes import mount_gradio_app
import json
# Define FastAPI app
app = FastAPI()
# Enable CORS for Spaces
app.add_middleware(
CORSMiddleware,
allow_origins=["*"],
allow_credentials=True,
allow_methods=["*"],
allow_headers=["*"],
)
# Load and clean CSV
def clean_df(df):
df = df.copy()
second_col = df.iloc[:, 2].astype(str)
if second_col.str.contains('http').any() or second_col.str.contains('www').any():
df["url"] = second_col
else:
df["url"] = "https://www.shl.com" + second_col.str.replace(r'^(?!/)', '/', regex=True)
df["remote_support"] = df.iloc[:, 3].map(lambda x: "Yes" if x == "T" else "No")
df["adaptive_support"] = df.iloc[:, 4].map(lambda x: "Yes" if x == "T" else "No")
df["test_type"] = df.iloc[:, 5].apply(lambda x: eval(x) if isinstance(x, str) else x)
df["description"] = df.iloc[:, 6]
df["duration"] = pd.to_numeric(df.iloc[:, 9].astype(str).str.extract(r'(\d+)')[0], errors='coerce')
return df[["url", "adaptive_support", "remote_support", "description", "duration", "test_type"]]
try:
df = pd.read_csv("assesments.csv", encoding='utf-8')
df_clean = clean_df(df)
except Exception as e:
print(f"Error loading CSV: {e}")
df_clean = pd.DataFrame(columns=["url", "adaptive_support", "remote_support", "description", "duration", "test_type"])
def validate_and_fix_urls(candidates):
for candidate in candidates:
if not isinstance(candidate, dict):
continue
if 'url' not in candidate or not candidate['url']:
candidate['url'] = 'https://www.shl.com/missing-url'
continue
url = str(candidate['url'])
if url.isdigit():
candidate['url'] = f"https://www.shl.com/{url}"
continue
if not url.startswith(('http://', 'https://')):
candidate['url'] = f"https://www.shl.com{url}" if url.startswith('/') else f"https://www.shl.com/{url}"
return candidates
def recommend(query):
if not query.strip():
return {"error": "Please enter a job description"}
try:
top_k_df = get_relevant_passages(query, df_clean, top_k=20)
if top_k_df.empty:
return {"error": "No matching assessments found"}
top_k_df['test_type'] = top_k_df['test_type'].apply(
lambda x: x if isinstance(x, list) else
(eval(x) if isinstance(x, str) and x.startswith('[') else [str(x)])
)
top_k_df['duration'] = top_k_df['duration'].fillna(-1).astype(int)
top_k_df.loc[top_k_df['duration'] == -1, 'duration'] = None
candidates = top_k_df.to_dict(orient="records")
candidates = validate_and_fix_urls(candidates)
result = rerank(query, candidates)
if 'recommended_assessments' in result:
result['recommended_assessments'] = validate_and_fix_urls(result['recommended_assessments'])
return result
except Exception as e:
import traceback
return {"error": f"Error: {str(e)}", "trace": traceback.format_exc()}
# --- API Endpoints ---
@app.get("/health")
async def health_check():
return JSONResponse(status_code=200, content={"status": "healthy"})
@app.post("/recommend")
async def recommend_api(request: Request):
body = await request.json()
query = body.get("query", "").strip()
if not query:
return JSONResponse(status_code=400, content={"error": "Missing 'query' in request body"})
result = recommend(query)
return JSONResponse(status_code=200, content=result)
# --- Gradio UI ---
gradio_iface = gr.Interface(
fn=recommend,
inputs=gr.Textbox(label="Enter Job Description", lines=4),
outputs="json",
title="SHL Assessment Recommender",
description="Paste a job description to get the most relevant SHL assessments."
)
# Mount Gradio app at root
app = mount_gradio_app(app, gradio_iface, path="/")
# Hugging Face Spaces runs `app` object, so no need for __main__
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