import os
import argparse
from dotenv import load_dotenv
from vectorstore import VectorStore
from agent import get_agent


def main():
    load_dotenv()
    parser = argparse.ArgumentParser(description="RAG Agent CLI")
    parser.add_argument("--docs_dir", type=str, default=None, help="Directory with documents to load")
    args = parser.parse_args()

    vectorstore = VectorStore()
    if args.docs_dir:
        if os.path.isdir(args.docs_dir):
            print(f"Loading documents from {args.docs_dir}...")
            vectorstore.add_documents(args.docs_dir)
            print("Documents loaded and indexed.")
        else:
            print(f"Documents directory {args.docs_dir} does not exist.")
    agent = get_agent(vectorstore)

    print("RAG Agent ready. Type your query or 'exit' to quit.")
    try:
        while True:
            query = input("You: ")
            if query.lower() in ("exit", "quit"):
                print("Goodbye!")
                break
            try:
                response = agent.run(query)
                print(f"Agent: {response}")
            except Exception as e:
                print(f"Error: {e}")
    except KeyboardInterrupt:
        print("\nInterrupted. Exiting.")


if __name__ == "__main__":
    main()