import os
import shutil
from typing import List
from Modules.Config import DOCUMENT_DIR, RERANKER
def saveFiles(filepath: str, target_filename: str) -> str:
"""
Saves a file to the designated DOCUMENT_DIR.
Args:
filepath (str): Path to the source file to be saved.
Returns:
str: Destination path where the file is saved, or an error message.
"""
try:
filename = target_filename or os.path.basename(filepath)
destination = os.path.normpath(os.path.join(DOCUMENT_DIR, filename))
shutil.copy(filepath, destination)
if not os.path.exists(destination):
raise FileNotFoundError(f"File was not saved correctly: {destination}")
return destination
except Exception as err:
raise RuntimeError(f"Error saving file: {err}")
def rerankDocs(query: str, results: list, top_k: int = 5) -> List:
"""
Reranks retrieved documents based on their relevance to the query using a cross-encoder model.
Args:
query (str): The search query or prompt.
results (list): List of retrieved documents, each as a dictionary with "content" key.
top_k (int, optional): Number of top documents to return after reranking. Defaults to 5.
Returns:
List: Reranked list of top_k documents.
"""
try:
if not results:
return []
pairs = [(query, doc.get("content", "")) for doc in results]
scores = RERANKER.predict(pairs, batch_size = 32)
reranked = sorted(zip(results, scores), key = lambda x: x[1], reverse = True)[:top_k]
return [r[0] for r in reranked]
except Exception as err:
print(f"[RAG RERANKER] Error: {err}")
return results[:top_k]
