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| from omegaconf import OmegaConf | |
| import streamlit as st | |
| import os | |
| from PIL import Image | |
| import re | |
| import sys | |
| import datetime | |
| from pydantic import Field, BaseModel | |
| from vectara_agent.agent import Agent, AgentType, AgentStatusType | |
| from vectara_agent.tools import ToolsFactory | |
| tickers = { | |
| "AAPL": "Apple Computer", | |
| "GOOG": "Google", | |
| "AMZN": "Amazon", | |
| "SNOW": "Snowflake", | |
| "TEAM": "Atlassian", | |
| "TSLA": "Tesla", | |
| "NVDA": "Nvidia", | |
| "MSFT": "Microsoft", | |
| "AMD": "Advanced Micro Devices", | |
| "INTC": "Intel", | |
| "NFLX": "Netflix", | |
| } | |
| years = [2020, 2021, 2022, 2023, 2024] | |
| initial_prompt = "How can I help you today?" | |
| def create_tools(cfg): | |
| def get_company_info() -> list[str]: | |
| """ | |
| Returns a dictionary of companies you can query about their financial reports. | |
| The output is a dictionary of valid ticker symbols mapped to company names. | |
| You can use this to identify the companies you can query about, and their ticker information. | |
| """ | |
| return tickers | |
| def get_valid_years() -> list[str]: | |
| """ | |
| Returns a list of the years for which financial reports are available. | |
| """ | |
| return years | |
| class QueryFinancialReportsArgs(BaseModel): | |
| query: str = Field(..., description="The user query.") | |
| year: int = Field(..., description=f"The year. an integer between {min(years)} and {max(years)}.") | |
| ticker: str = Field(..., description=f"The company ticker. Must be a valid ticket symbol from the list {tickers.keys()}.") | |
| tools_factory = ToolsFactory(vectara_api_key=cfg.api_key, | |
| vectara_customer_id=cfg.customer_id, | |
| vectara_corpus_id=cfg.corpus_id) | |
| query_financial_reports = tools_factory.create_rag_tool( | |
| tool_name = "query_financial_reports", | |
| tool_description = """ | |
| Given a company name and year, | |
| returns a response (str) to a user query about the company's financial reports for that year. | |
| make sure to provide the a valid company ticker and year. | |
| """, | |
| tool_args_schema = QueryFinancialReportsArgs, | |
| tool_filter_template = "doc.year = {year} and doc.ticker = '{ticker}'", | |
| reranker = "multilingual_reranker_v1", rerank_k = 100, | |
| n_sentences_before = 2, n_sentences_after = 2, lambda_val = 0.01, | |
| summary_num_results = 10, | |
| vectara_summarizer = 'vectara-summary-ext-24-05-med-omni', | |
| ) | |
| return (tools_factory.get_tools( | |
| [ | |
| get_company_info, | |
| get_valid_years, | |
| ] | |
| ) + | |
| tools_factory.standard_tools() + | |
| tools_factory.financial_tools() + | |
| tools_factory.guardrail_tools() + | |
| [query_financial_reports] | |
| ) | |
| def initialize_agent(agent_type: AgentType, _cfg): | |
| date = datetime.datetime.now().strftime("%Y-%m-%d") | |
| financial_bot_instructions = f""" | |
| - You are a helpful financial assistant, with expertise in finanal reporting, in conversation with a user. | |
| - Today's date is {date}. | |
| - Report in a concise and clear manner, and provide the most relevant information to the user. | |
| - Respond in a concise format by using appropriate units of measure (e.g., K for thousands, M for millions, B for billions). | |
| - Use tools when available instead of depending on your own knowledge. | |
| - When querying a tool for a numeric value or KPI, use a concise and non-ambiguous description of what you are looking for. | |
| - If you calculate a metric, make sure you have all the necessary information to complete the calculation. Don't guess. | |
| - Be very careful not to report results you are not confident about. | |
| - Always use any guardrails tools to ensure your responses are polite and do not discuss politices. | |
| """ | |
| def update_func(status_type: AgentStatusType, msg: str): | |
| output = f"{status_type.value} - {msg}" | |
| st.session_state.thinking_placeholder.text(output) | |
| agent = Agent( | |
| agent_type=agent_type, | |
| tools=create_tools(_cfg), | |
| topic="10-K annual financial reports", | |
| custom_instructions=financial_bot_instructions, | |
| update_func=update_func | |
| ) | |
| return agent | |
| def launch_bot(agent_type: AgentType): | |
| def reset(): | |
| cfg = st.session_state.cfg | |
| st.session_state.messages = [{"role": "assistant", "content": initial_prompt, "avatar": "🦖"}] | |
| st.session_state.thinking_message = "Agent at work..." | |
| st.session_state.agent = initialize_agent(agent_type, cfg) | |
| st.set_page_config(page_title="Financial Assistant", layout="wide") | |
| if 'cfg' not in st.session_state: | |
| cfg = OmegaConf.create({ | |
| 'customer_id': str(os.environ['VECTARA_CUSTOMER_ID']), | |
| 'corpus_id': str(os.environ['VECTARA_CORPUS_ID']), | |
| 'api_key': str(os.environ['VECTARA_API_KEY']), | |
| }) | |
| st.session_state.cfg = cfg | |
| reset() | |
| cfg = st.session_state.cfg | |
| # left side content | |
| with st.sidebar: | |
| image = Image.open('Vectara-logo.png') | |
| st.image(image, width=250) | |
| st.markdown("## Welcome to the financial assistant demo.\n\n\n") | |
| companies = ", ".join(tickers.values()) | |
| st.markdown( | |
| f"This assistant can help you with any questions about the financials of several companies:\n\n **{companies}**.\n" | |
| ) | |
| st.markdown("\n\n") | |
| if st.button('Start Over'): | |
| reset() | |
| st.markdown("---") | |
| st.markdown( | |
| "## How this works?\n" | |
| "This app was built with [Vectara](https://vectara.com).\n\n" | |
| "It demonstrates the use of Agentic Chat functionality with Vectara" | |
| ) | |
| st.markdown("---") | |
| if "messages" not in st.session_state.keys(): | |
| reset() | |
| # Display chat messages | |
| for message in st.session_state.messages: | |
| with st.chat_message(message["role"], avatar=message["avatar"]): | |
| st.write(message["content"]) | |
| # User-provided prompt | |
| if prompt := st.chat_input(): | |
| st.session_state.messages.append({"role": "user", "content": prompt, "avatar": '🧑💻'}) | |
| with st.chat_message("user", avatar='🧑💻'): | |
| print(f"Starting new question: {prompt}\n") | |
| st.write(prompt) | |
| # Generate a new response if last message is not from assistant | |
| if st.session_state.messages[-1]["role"] != "assistant": | |
| with st.chat_message("assistant", avatar='🤖'): | |
| with st.spinner(st.session_state.thinking_message): | |
| st.session_state.thinking_placeholder = st.empty() | |
| res = st.session_state.agent.chat(prompt) | |
| cleaned = re.sub(r'\[\d+\]', '', res).replace('$', '\\$') | |
| message = {"role": "assistant", "content": cleaned, "avatar": '🤖'} | |
| st.session_state.messages.append(message) | |
| st.session_state.thinking_placeholder.empty() | |
| st.rerun() | |
| sys.stdout.flush() | |
| if __name__ == "__main__": | |
| launch_bot(agent_type=AgentType.OPENAI) | |