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"""Sample agent using FilesRetrieval with gemini-embedding-2-preview.

This agent indexes local text files and answers questions about them
using retrieval-augmented generation.

Usage:
  cd contributing/samples
  adk run files_retrieval_agent
  # or
  adk web .
"""

import os

from google.adk.agents.llm_agent import Agent
from google.adk.tools.retrieval.files_retrieval import FilesRetrieval

DATA_DIR = os.path.join(os.path.dirname(__file__), "data")

files_retrieval = FilesRetrieval(
    name="search_documents",
    description=(
        "Search through local ADK documentation files to find relevant"
        " information. Use this tool when the user asks questions about ADK"
        " features, architecture, or tools."
    ),
    input_dir=DATA_DIR,
)

root_agent = Agent(
    name="files_retrieval_agent",
    instruction=(
        "You are a helpful assistant that answers questions about the Agent"
        " Development Kit (ADK). Use the search_documents tool to find"
        " relevant information before answering. Always base your answers"
        " on the retrieved documents."
    ),
    tools=[files_retrieval],
)