app.py

import os
import time
import gradio as gr
import requests
import inspect
import pandas as pd
import re
import warnings
warnings.filterwarnings("ignore")
import json
import logging
from typing import TypedDict, Annotated, Dict, Any
from json_repair import repair_json
import requests
from bs4 import BeautifulSoup
from pydantic import BaseModel, Field
from typing import Dict
from transformers import AutoTokenizer, AutoModelForCausalLM
import torch
from langgraph.graph import StateGraph, START, END
from langgraph.graph.message import add_messages
from langchain_core.messages import AnyMessage, HumanMessage, AIMessage
from langchain_community.retrievers import BM25Retriever
from langchain_core.tools import Tool
from langchain_core.documents import Document
from langgraph.prebuilt import ToolNode, tools_condition
from sentence_transformers import SentenceTransformer
from sklearn.metrics.pairwise import cosine_similarity
# from langchain.agents import create_tool_calling_agent

# (Keep Constants as is)
# --- Constants ---
DEFAULT_API_URL = "https://agents-course-unit4-scoring.hf.space"

sentence_transformer_model = SentenceTransformer("all-mpnet-base-v2")

logger = logging.getLogger("agent")
logging.basicConfig(level=logging.INFO)

class Config(object):
    def __init__(self):
        self.random_state = 42
        self.max_len = 256
        self.reasoning_max_len = 256
        self.temperature = 0.1
        self.repetition_penalty = 1.2
        self.DEVICE = "cuda" if torch.cuda.is_available() else "cpu"
        self.model_name = "Qwen/Qwen2.5-7B-Instruct"
        # self.model_name = "deepseek-ai/DeepSeek-R1-Distill-Qwen-7B"
        # self.reasoning_model_name = "deepseek-ai/DeepSeek-R1-Distill-Qwen-7B"
        # self.reasoning_model_name = "Qwen/Qwen2.5-7B-Instruct"
        # self.reasoning_model_name = "mistralai/Mistral-7B-Instruct-v0.2"


config = Config()


tokenizer = AutoTokenizer.from_pretrained(config.model_name)
model = AutoModelForCausalLM.from_pretrained(
    config.model_name,
    torch_dtype=torch.float16,
    device_map="auto"
)

# reasoning_tokenizer = AutoTokenizer.from_pretrained(config.reasoning_model_name)
# reasoning_model = AutoModelForCausalLM.from_pretrained(
#     config.reasoning_model_name,
#     torch_dtype=torch.float16,
#     device_map="auto"
# )

def generate(prompt):
    """
    Generate a text completion from a causal language model given a prompt.

    Parameters
    ----------
    prompt : str
        Input text prompt used to condition the language model.

    Returns
    -------
    str
        The generated continuation text, decoded into a string with special
        tokens removed and leading/trailing whitespace stripped.

    """
    inputs = tokenizer(prompt, return_tensors="pt").to(model.device)

    with torch.no_grad():
        outputs = model.generate(
            **inputs,
            max_new_tokens=config.max_len,
            temperature=config.temperature,
            repetition_penalty = config.repetition_penalty,
        )

    generated = outputs[0][inputs["input_ids"].shape[-1]:]

    return tokenizer.decode(generated, skip_special_tokens=True).strip()

def reasoning_generate(prompt):
    """
    Generate a text completion from a causal language model given a prompt.

    Parameters
    ----------
    prompt : str
        Input text prompt used to condition the language model.

    Returns
    -------
    str
        The generated continuation text, decoded into a string with special
        tokens removed and leading/trailing whitespace stripped.

    """
    inputs = tokenizer(prompt, return_tensors="pt").to(model.device)

    with torch.no_grad():
        outputs = model.generate(
            **inputs,
            max_new_tokens=config.reasoning_max_len,
            temperature=config.temperature,
            repetition_penalty = config.repetition_penalty,
        )

    generated = outputs[0][inputs["input_ids"].shape[-1]:]

    return tokenizer.decode(generated, skip_special_tokens=True).strip()


def reasoning_generate(prompt):
    """
    Generate a text completion from a causal language model given a prompt.

    Parameters
    ----------
    prompt : str
        Input text prompt used to condition the language model.

    Returns
    -------
    str
        The generated continuation text, decoded into a string with special
        tokens removed and leading/trailing whitespace stripped.

    """
    inputs = tokenizer(prompt, return_tensors="pt").to(model.device)

    with torch.no_grad():
        outputs = model.generate(
            **inputs,
            max_new_tokens=config.reasoning_max_len,
            temperature=config.temperature,
            repetition_penalty = config.repetition_penalty,
        )

    generated = outputs[0][inputs["input_ids"].shape[-1]:]

    return tokenizer.decode(generated, skip_special_tokens=True).strip()
    

class Action(BaseModel):
    tool: str = Field(...)
    args: Dict

# Generate the AgentState and Agent graph
class AgentState(TypedDict):
    messages: Annotated[list[AnyMessage], add_messages]
    proposed_action: str
    information: str
    output: str
    confidence: float
    judge_explanation: str


ALL_TOOLS = {
    "web_search": ["query"],
    "visit_webpage": ["url"],
}

ALLOWED_TOOLS = {
    "web_search": ["query"],
    "visit_webpage": ["url"],
}


def visit_webpage(url: str) -> str:
    """
    Fetch and read the content of a webpage.
    Args:
        url: URL of the webpage
    Returns:
        Extracted readable text (truncated)
    """

    headers = {
        "User-Agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120 Safari/537.36"
    }

    response = requests.get(url, headers=headers, timeout=10)
    response.raise_for_status()

    soup = BeautifulSoup(response.text, "html.parser")

    paragraphs = [p.get_text() for p in soup.find_all("p")]
    text = "\n".join(paragraphs)

    return (text[:500], text[500:1000])


def visit_webpage(url: str) -> str:
    headers = {
        "User-Agent": "Mozilla/5.0"
    }

    response = requests.get(url, headers=headers, timeout=10)
    response.raise_for_status()

    soup = BeautifulSoup(response.text, "html.parser")

    # Remove scripts/styles
    for tag in soup(["script", "style"]):
        tag.extract()

    # Extract more elements (not just <p>)
    elements = soup.find_all(["p", "dd"])

    text = " \n ".join(el.get_text(strip=False) for el in elements)

    return (text[:1000], )


def visit_webpage(url: str) -> str:
    headers = {
        "User-Agent": "Mozilla/5.0"
    }

    response = requests.get(url, headers=headers, timeout=10)
    response.raise_for_status()

    soup = BeautifulSoup(response.text, "html.parser")

    # Remove scripts/styles
    for tag in soup(["script", "style"]):
        tag.extract()

    content = soup.find("div", {"id": "mw-content-text"})

    texts = []

    # 1. Paragraphs
    for p in content.find_all("p"):
        texts.append(p.get_text(strip=False))

    # 2. Definition lists
    for dd in content.find_all("dd"):
        texts.append(dd.get_text(strip=False))

    # 3. Tables (IMPORTANT)
    for table in content.find_all("table", {"class": "wikitable"}):
        for row in table.find_all("tr"):
            cols = [c.get_text(strip=True) for c in row.find_all(["td", "th"])]
            if cols:
                texts.append(" | ".join(cols))

    return (" \n ".join(texts)[:1000], )


def visit_webpage(url: str) -> str:
    headers = {
        "User-Agent": "Mozilla/5.0"
    }

    response = requests.get(url, headers=headers, timeout=10)
    response.raise_for_status()

    soup = BeautifulSoup(response.text, "html.parser")

    # Remove scripts/styles
    for tag in soup(["script", "style"]):
        tag.extract()

    content = soup.find("div", {"id": "mw-content-text"})

    # Extract more elements (not just <p>)
    elements = soup.find_all(["p", "dd"])

    main_text = " \n ".join(el.get_text(strip=False) for el in elements)

    # 3. Tables (IMPORTANT)
    table_texts = []
    for table in content.find_all("table", {"class": "wikitable"}):
        for row in table.find_all("tr"):
            cols = [c.get_text(strip=True) for c in row.find_all(["td", "th"])]
            if cols:
                table_texts.append(" | ".join(cols))

    if len(table_texts) > 0:
        return [main_text[:1000], " \n ".join(table_texts),]
    else:
        return [main_text[:1000],]


def visit_webpage(url: str) -> str:
    headers = {
        "User-Agent": "Mozilla/5.0"
    }

    response = requests.get(url, headers=headers, timeout=10)
    response.raise_for_status()

    soup = BeautifulSoup(response.text, "html.parser")

    # Remove scripts/styles
    for tag in soup(["script", "style"]):
        tag.extract()

    content = soup.find("div", {"id": "mw-content-text"})

    # Extract more elements (not just <p>)
    elements = soup.find_all(["p", "dd"])

    main_text = " \n ".join(el.get_text(strip=False) for el in elements)

    # 3. Tables (IMPORTANT)
    table_texts = []
    if content is not None:
        for table in content.find_all("table", {"class": "wikitable"}):
            for row in table.find_all("tr"):
                cols = [c.get_text(strip=True) for c in row.find_all(["td", "th"])]
                if cols:
                    table_texts.append(" | ".join(cols))

    if len(table_texts) > 0:
        return [main_text[:1000], " \n ".join(table_texts),]
    else:
        return [main_text[:1000],]


def visit_webpage_wiki(url: str) -> str:
    headers = {
        "User-Agent": "Mozilla/5.0"
    }

    response = requests.get(url, headers=headers, timeout=10)
    response.raise_for_status()

    soup = BeautifulSoup(response.text, "html.parser")

    # Remove scripts/styles
    for tag in soup(["script", "style"]):
        tag.extract()

    content = soup.find("div", {"id": "mw-content-text"})

    # Extract more elements (not just <p>)
    elements = soup.find_all(["p", "dd"])

    main_text = " \n ".join(el.get_text(strip=False) for el in elements)

    # 3. Tables (IMPORTANT)
    table_texts = []
    if content is not None:
        for table in content.find_all("table", {"class": "wikitable"}):
            for row in table.find_all("tr"):
                cols = [c.get_text(strip=False) for c in row.find_all(["td", "th"])]
                if cols:
                    table_texts.append(" | ".join(cols))

    if len(table_texts) > 0:
        return [main_text[:1000], " \n ".join(table_texts)[:5000],]
    else:
        return [main_text[:1000],]


def visit_webpage_main(url: str):
    headers = {"User-Agent": "Mozilla/5.0"}

    response = requests.get(url, headers=headers, timeout=10)
    response.raise_for_status()

    soup = BeautifulSoup(response.text, "html.parser")

    # Remove scripts/styles
    for tag in soup(["script", "style"]):
        tag.extract()

    # 🔥 Try to focus on body (fallback if no clear container)
    content = soup.find("body")

    # ✅ Extract broader set of elements
    elements = content.find_all(["p", "dd", "td", "div"])

    texts = []
    for el in elements:
        text = el.get_text(strip=True)
        if text and len(text) > 30:  # filter noise
            texts.append(text)

    main_text = "\n".join(texts)

    # ✅ Extract all tables (not just wikitable)
    table_texts = []
    for table in soup.find_all("table"):
        for row in table.find_all("tr"):
            cols = [c.get_text(strip=True) for c in row.find_all(["td", "th"])]
            if cols:
                table_texts.append(" | ".join(cols))

    if table_texts:
        return [main_text[:1500], "\n".join(table_texts)[:5000]]
    else:
        return [main_text[:1500]]


def web_search(query: str, num_results: int = 10):
    """
    Search the internet for the query provided
    Args:
        query: Query to search in the internet
    Returns:
        list of urls
    """

    url = "https://html.duckduckgo.com/html/"
    headers = {
        "User-Agent": "Mozilla/5.0"
    }

    response = requests.post(url, data={"q": query}, headers=headers)
    
    soup = BeautifulSoup(response.text, "html.parser")
    return [a.get("href") for a in soup.select(".result__a")[:num_results]]


def planner_node(state: AgentState):
    """
    Planning node for a tool-using LLM agent.

    The planner enforces:
    - Strict JSON-only output
    - Tool selection constrained to predefined tools
    - Argument generation limited to user-provided information

    Parameters
    ----------
    state : dict
        Agent state dictionary containing:
        - "messages" (str): The user's natural language request.

    Returns
    -------
    dict
        Updated state dictionary with additional keys:
        - "proposed_action" (dict): Parsed JSON tool call in the form:
              {
                  "tool": "<tool_name>",
                  "args": {...}
              }
        - "risk_score" (float): Initialized risk score (default 0.0).
        - "decision" (str): Initial decision ("allow" by default).

    Behavior
    --------
    1. Constructs a planning prompt including:
       - Available tools and allowed arguments
       - Strict JSON formatting requirements
       - Example of valid output
    2. Calls the language model via `generate()`.
    3. Attempts to extract valid JSON from the model output.
    4. Repairs malformed JSON using `repair_json`.
    5. Stores the parsed action into the agent state.

    Security Notes
    --------------
    - This node does not enforce tool-level authorization.
    - It does not validate hallucinated tools.
    - It does not perform risk scoring beyond initializing values.
    - Downstream nodes must implement:
        * Tool whitelist validation
        * Argument validation
        * Risk scoring and mitigation
        * Execution authorization

    Intended Usage
    --------------
    Designed for multi-agent or LangGraph-style workflows where:
        Planner → Risk Assessment → Tool Executor → Logger

    This node represents the *planning layer* of the agent architecture.
    """

    user_input = state["messages"][-1].content

    prompt = f"""
You are a planning agent.

You MUST return ONLY valid JSON as per the tools specs below ONLY.
No extra text.
DO NOT invent anything additional beyond the user request provided. Keep it strict to the user request information provided. The question and the query should be fully relevant to the user request provided, no deviation and hallucination. If possible and makes sense then the query should be exactly the user request.

The available tools and their respective arguments are: {{
    "web_search": ["query"],
    "visit_webpage": ["url"],
}}

Return exactly the following format:
Response:
{{
  "tool": "...",
  "args": {{...}}
}}

User request: Who nominated the only Featured Article on English Wikipedia about a dinosaur that was promoted in November 2016?. Example of valid JSON expected:
Response:
{{"tool": "web_search",
 "args": {{"query": "Who nominated the only Featured Article on English Wikipedia about a dinosaur that was promoted in November 2016?",
  }}
}}

Return only one Response!

User request:
{user_input}
"""

    output = generate(prompt)

    state["proposed_action"] = output.split("Response:")[-1]
    fixed = repair_json(state["proposed_action"])
    data = json.loads(fixed)
    state["proposed_action"] = data

    return state
    

def safety_node(state: AgentState):
    """
    Evaluate the information provided and output the response for the user request.
    """

    user_input = state["messages"][-1].content
    information = state["information"]

    prompt = f"""
You are a response agent.

You must reason over the user request and the provided information and output the answer to the user's request. Reason well over the information provided, if any, and output the answer that satisfies the user's question exactly.

You MUST ONLY return EXACTLY the answer to the user's question in the following format:
Response: <answer>

DO NOT add anything additional and return ONLY what is asked and in the format asked.

ONLY return a response if you are confident about the answer, otherwise return empty string.

If you output anything else, it is incorrect.

If there is no information provided or the information is not relevant then answer as best based on your own knowledge.

Example of valid json response for user request: Who was the winner of 2025 World Snooker Championship:
Response: Zhao Xintong.

Return exactly the above requested format and nothing more! 
DO NOT generate any additional text after it!

User request:
{user_input}

Information:
{information}
"""

    raw_output = reasoning_generate(prompt)
    # raw_output = generate(prompt)

    logger.info(f"Raw Output: {raw_output}")

    # output = raw_output.split("Response:")[-1].strip()
    # output = output.split("\n")[0].strip()
    # # match = re.search(r"Response:\s*(.*)", raw_output, re.IGNORECASE)
    # # output = match.group(1).strip() if match else ""

    # if len(output) > 2 and output[0] == '"' and output[-1] == '"':
    #     output = output[1:-1]

    # if len(output) > 2 and output[-1] == '.':
    #     output = output[:-1]



    raw = raw_output.strip()

    matches = re.findall(r"Response:\s*([^\n]+)", raw)
    
    if matches:
        output = matches[-1].strip()  # ✅ take LAST occurrence
    else:
        # Find the first valid "Response: ..." occurrence
        match = re.search(r"Response:\s*([^\n\.]+)", raw)
        
        if match:
            output = match.group(1).strip()
        else:
            # fallback: take first line
            output = raw.split("\n")[0].strip()
    
        if "Response:" in output:
            output = output.split("Response:")[-1]
        elif "Response" in output:
            output = output.split("Response")[-1]
        
        # Clean quotes / trailing punctuation
        output = output.strip('"').strip()
        if output.endswith("."):
            output = output[:-1]
    
    # Clean
    if "Response:" in output:
        output = output.split("Response:")[-1]
    elif "Response" in output:
        output = output.split("Response")[-1]
    
    # Clean quotes / trailing punctuation
    output = output.strip('"').strip()
    if output.endswith("."):
        output = output[:-1]


    if output == "":
        # Find the first valid "Response: ..." occurrence
        match = re.search(r"Response:\s*([^\n\.]+)", raw)
        
        if match:
            output = match.group(1).strip()
        else:
            # fallback: take first line
            output = raw.split("\n")[0].strip()
    
        if "Response:" in output:
            output = output.split("Response:")[-1]
        elif "Response" in output:
            output = output.split("Response")[-1]
        
        # Clean quotes / trailing punctuation
        output = output.strip('"').strip()
        if output.endswith("."):
            output = output[:-1]


    output = output.split(".")[0]


    state["output"] = output

    logger.info(f"State (Safety Agent): {state}")

    return state


def Judge(state: AgentState):
    """
    Evaluate whether the answer provided is indeed based on the information provided or not.
    """

    answer = state["output"]
    information = state["information"]
    user_input = state["messages"][-1].content

    prompt = f"""
You are a Judging agent.

You must reason over the user request and judge with a confidence score whether the answer is indeed based on the provided information or not. 

Example: User request: Who was the winner of 2025 World Snooker Championship?
Information: Zhao Xintong won the 2025 World Snooker Championship with a dominant 18-12 final victory over Mark Williams in Sheffield on Monday. The 28 year-old becomes the first player from China to win snooker’s premier prize at the Crucible Theatre.
Zhao, who collects a top prize worth £500,000, additionally becomes the first player under amateur status to go all the way to victory in a World Snooker Championship.
The former UK champion entered the competition in the very first qualifying round at the English Institute of Sport last month.
He compiled a dozen century breaks as he fought his way through four preliminary rounds in fantastic fashion to qualify for the Crucible for the third time in his career.
In the final round of the qualifiers known as Judgement Day, Zhao edged Elliot Slessor 10-8 in a high-quality affair during which both players made a hat-trick of tons.
Ironically, that probably represented his sternest test throughout the entire event.
Answer: "Zhao Xintong"

Response: {{
    "confidence": 1.0,
    "explanation": Based on the information provided, it is indeed mentioned that Zhao Xingong, which is the answer provided, won the 2025 World Snooker Championship.
}}


Example: User request: Who was the winner of 2025 World Snooker Championship?
Information: Zhao Xintong won the 2025 World Snooker Championship with a dominant 18-12 final victory over Mark Williams in Sheffield on Monday. The 28 year-old becomes the first player from China to win snooker’s premier prize at the Crucible Theatre.
Zhao, who collects a top prize worth £500,000, additionally becomes the first player under amateur status to go all the way to victory in a World Snooker Championship.
The former UK champion entered the competition in the very first qualifying round at the English Institute of Sport last month.
He compiled a dozen century breaks as he fought his way through four preliminary rounds in fantastic fashion to qualify for the Crucible for the third time in his career.
In the final round of the qualifiers known as Judgement Day, Zhao edged Elliot Slessor 10-8 in a high-quality affair during which both players made a hat-trick of tons.
Ironically, that probably represented his sternest test throughout the entire event.
Answer: "Ronnie O'sullivan"

Response: {{
    "confidence": 0.0,
    "explanation": Based on the information provided, it is was Zhao Xingong and not Ronnie O'sullivan who won the 2025 World Snooker Championship.
}}

Example: User request: Who was the winner of 2025 World Snooker Championship?
Information:  
Answer: "Ronnie O'sullivan"

Response: {{
    "confidence": 0.0,
    "explanation": There is no information provided, so cannot answer who won the 2025 World Snooker Championship.
}}

Return exactly the above requested format and nothing more! 
DO NOT generate any additional text after it! 
Return only what is asked and in the format asked!

User request:
{user_input}

Information:
{information}

Answer:
{answer}
"""

    raw_output = generate(prompt)

    print(f"Judge raw output: {raw_output}")

    output = raw_output.split("Response:")[-1].strip()
    fixed = repair_json(output)
    data = json.loads(fixed)

    state["confidence"] = data["confidence"]
    state["judge_explanation"] = data["explanation"]

    # logger.info(f"State (Judge Agent): {state}")

    return state


def route(state: AgentState):
    """Determine the next step based on Safety Agent classification"""
    if state["risk_score"] > 0.5:
        return "block"
    else:
        return "allow"


def tool_executor(state: AgentState):
    """
    Tool execution node for a risk-aware LLM agent.

    This node executes the validated and approved tool call proposed by the
    planner and assessed by the safety layer. It conditionally dispatches
    execution based on the safety decision and updates the agent state with
    the final output.

    Parameters
    ----------
    state : dict
        Agent state dictionary containing:
        - "decision" (str): Safety decision ("allow" or blocking variant).
        - "risk_score" (float): Computed risk score.
        - "proposed_action" (dict): Validated tool call in structured form.

    Returns
    -------
    dict
        Updated state dictionary including:
        - "output" (str): Result of tool execution OR block message.

    Execution Flow
    --------------
    1. If the safety decision is not "allow":
       - Skip tool execution.
       - Return a blocked message including the risk score.

    2. If allowed:
       - Validate the proposed action using the `Action` schema.
       - Dispatch execution to the appropriate tool implementation:
            * "google_calendar"
            * "reply_email"
            * "share_credentials"
       - Store tool result in `state["output"]`.

    3. If the tool is unrecognized:
       - Return "Unknown tool" as a fallback response.

    Security Considerations
    -----------------------
    - Execution only occurs after passing the safety node.
    - No runtime sandboxing is implemented.
    - No per-tool authorization layer (RBAC) is enforced.
    - Sensitive tools (e.g., credential exposure) should require:
        * Elevated approval thresholds
        * Human-in-the-loop confirmation
        * Additional auditing

    Architectural Role
    ------------------
    Planner → Safety → Tool Execution → Logger

    This node represents the controlled execution layer of the agent,
    responsible for translating structured LLM intent into real system actions.
    """

    try:
        webpage_result = ""
        action = Action.model_validate(state["proposed_action"])
    
        best_query_webpage_information_similarity_score = -1.0
        best_webpage_information = ""
    
        webpage_information_complete = ""
    
        if action.tool == "web_search":
            logger.info(f"action.tool: {action.tool}")
            
            query_embeddings = sentence_transformer_model.encode_query(state["messages"][-1].content).reshape(1, -1)
            query_arg_embeddings = sentence_transformer_model.encode_query(state["proposed_action"]["args"]["query"]).reshape(1, -1)
            score = float(cosine_similarity(query_embeddings, query_arg_embeddings)[0][0])
    
            if score > 0.80:
                results = web_search(**action.args)
            else:
                logger.info(f"Overwriting user query because the Agent suggested query had score: {state["proposed_action"]["args"]["query"]} - {score}")
                results = web_search(**{"query": state["messages"][-1].content})
    
            logger.info(f"Webpages - Results: {results}")
    
            for result in results:
                try:
                    webpage_results = visit_webpage_wiki(result)
                    webpage_result = " \n ".join(webpage_results)
    
                    # for webpage_result in webpage_results:
                    query_embeddings = sentence_transformer_model.encode_query(state["messages"][-1].content).reshape(1, -1)
                    webpage_information_embeddings = sentence_transformer_model.encode_query(webpage_result).reshape(1, -1)
                    query_webpage_information_similarity_score = float(cosine_similarity(query_embeddings, webpage_information_embeddings)[0][0])
        
                    # logger.info(f"Webpage Information and Similarity Score: {result} - {webpage_result} - {query_webpage_information_similarity_score}")
        
                    if query_webpage_information_similarity_score > 0.65:
                        webpage_information_complete += webpage_result
                        webpage_information_complete += " \n "
                        webpage_information_complete += " \n "
        
                    if query_webpage_information_similarity_score > best_query_webpage_information_similarity_score:
                        best_query_webpage_information_similarity_score = query_webpage_information_similarity_score
                        best_webpage_information = webpage_result



                    webpage_results = visit_webpage_main(result)
                    webpage_result = " \n ".join(webpage_results)
    
                    # for webpage_result in webpage_results:
                    query_embeddings = sentence_transformer_model.encode_query(state["messages"][-1].content).reshape(1, -1)
                    webpage_information_embeddings = sentence_transformer_model.encode_query(webpage_result).reshape(1, -1)
                    query_webpage_information_similarity_score = float(cosine_similarity(query_embeddings, webpage_information_embeddings)[0][0])
        
                    # logger.info(f"Webpage Information and Similarity Score: {result} - {webpage_result} - {query_webpage_information_similarity_score}")
        
                    if query_webpage_information_similarity_score > 0.65:
                        webpage_information_complete += webpage_result
                        webpage_information_complete += " \n "
                        webpage_information_complete += " \n "
        
                    if query_webpage_information_similarity_score > best_query_webpage_information_similarity_score:
                        best_query_webpage_information_similarity_score = query_webpage_information_similarity_score
                        best_webpage_information = webpage_result
                
    
                except Exception as e:
                    logger.info(f"Tool Executor - Exception: {e}")
                    
        elif action.tool == "visit_webpage":
            try:
                webpage_results = visit_webpage_wiki(result)
                webpage_result = " \n ".join(webpage_results)

                # for webpage_result in webpage_results:
                query_embeddings = sentence_transformer_model.encode_query(state["messages"][-1].content).reshape(1, -1)
                webpage_information_embeddings = sentence_transformer_model.encode_query(webpage_result).reshape(1, -1)
                query_webpage_information_similarity_score = float(cosine_similarity(query_embeddings, webpage_information_embeddings)[0][0])
    
                # logger.info(f"Webpage Information and Similarity Score: {result} - {webpage_result} - {query_webpage_information_similarity_score}")
    
                if query_webpage_information_similarity_score > 0.65:
                    webpage_information_complete += webpage_result
                    webpage_information_complete += " \n "
                    webpage_information_complete += " \n "
    
                if query_webpage_information_similarity_score > best_query_webpage_information_similarity_score:
                    best_query_webpage_information_similarity_score = query_webpage_information_similarity_score
                    best_webpage_information = webpage_result



                webpage_results = visit_webpage_main(result)
                webpage_result = " \n ".join(webpage_results)

                # for webpage_result in webpage_results:
                query_embeddings = sentence_transformer_model.encode_query(state["messages"][-1].content).reshape(1, -1)
                webpage_information_embeddings = sentence_transformer_model.encode_query(webpage_result).reshape(1, -1)
                query_webpage_information_similarity_score = float(cosine_similarity(query_embeddings, webpage_information_embeddings)[0][0])
    
                # logger.info(f"Webpage Information and Similarity Score: {result} - {webpage_result} - {query_webpage_information_similarity_score}")
    
                if query_webpage_information_similarity_score > 0.65:
                    webpage_information_complete += webpage_result
                    webpage_information_complete += " \n "
                    webpage_information_complete += " \n "
    
                if query_webpage_information_similarity_score > best_query_webpage_information_similarity_score:
                    best_query_webpage_information_similarity_score = query_webpage_information_similarity_score
                    best_webpage_information = webpage_result
            except:
                pass
        else:
            result = "Unknown tool"
    
        if webpage_information_complete == "" and best_query_webpage_information_similarity_score > 0.30:
            webpage_information_complete = best_webpage_information
        
        state["information"] = webpage_information_complete[:3000]
        state["best_query_webpage_information_similarity_score"] = best_query_webpage_information_similarity_score
    except:
        state["information"] = ""
        state["best_query_webpage_information_similarity_score"] = -1.0
    
    # logger.info(f"Information: {state['information']}")
    # logger.info(f"Information: {state['best_query_webpage_information_similarity_score']}")

    return state


safe_workflow = StateGraph(AgentState)
# safe_workflow = StateGraph(dict)

safe_workflow.add_node("planner", planner_node)
safe_workflow.add_node("tool_executor", tool_executor)
safe_workflow.add_node("safety", safety_node)
# safe_workflow.add_node("judge", Judge)

# safe_workflow.set_entry_point("planner")

safe_workflow.add_edge(START, "planner")
safe_workflow.add_edge("planner", "tool_executor")
safe_workflow.add_edge("tool_executor", "safety")
# safe_workflow.add_edge("safety", "judge")
# safe_workflow.add_conditional_edges(
#     "safety",
#     route,
#     {
#         "allow": "tool_executor",
#         "block": END,
#     },
# )
# safe_workflow.add_edge("tool_executor", END)

# safe_app = safe_workflow.compile()



# --- Basic Agent Definition ---
# ----- THIS IS WERE YOU CAN BUILD WHAT YOU WANT ------
class BasicAgent:
    def __init__(self):
        self.safe_app = safe_workflow.compile()

        print("BasicAgent initialized.")
    def __call__(self, task_id: str, question: str, filename: str) -> str:
        print(f"Agent received question (first 50 chars): {question[:50]}...")
        fixed_answer = "This is a default answer."
        # print(f"Agent returning fixed answer: {fixed_answer}")


        # if question == "Given this table defining * on the set S = {a, b, c, d, e}\n\n|*|a|b|c|d|e|\n|---|---|---|---|---|---|\n|a|a|b|c|b|d|\n|b|b|c|a|e|c|\n|c|c|a|b|b|a|\n|d|b|e|b|e|d|\n|e|d|b|a|d|c|\n\nprovide the subset of S involved in any possible counter-examples that prove * is not commutative. Provide your answer as a comma separated list of the elements in the set in alphabetical order.":
        # if " image " not in question and " video " not in question:
        # if question == "Who nominated the only Featured Article on English Wikipedia about a dinosaur that was promoted in November 2016?" or question == "What is the first name of the only Malko Competition recipient from the 20th Century (after 1977) whose nationality on record is a country that no longer exists?":
        # if question == "The attached Excel file contains the sales of menu items for a local fast-food chain. What were the total sales that the chain made from food (not including drinks)? Express your answer in USD with two decimal places.":
        # if question == "Where were the Vietnamese specimens described by Kuznetzov in Nedoshivina's 2010 paper eventually deposited? Just give me the city name without abbreviations.":

        if question != "aalskdalsdh" and filename == "":
            time.sleep(60)

        
            state = {
                "messages": question,
            }

            if len(tokenizer.encode(state["messages"][::-1])) < len(tokenizer.encode(state["messages"])):
                state["messages"] = state["messages"][::-1]


            # Replace with your actual API base URL
            BASE_URL = f"{DEFAULT_API_URL}/files"
            
            # Construct the full URL
            url = f"{BASE_URL}/{task_id}"
            
            # Send GET request
            response = requests.get(url)
            
            # Check if the request was successful
            if response.status_code == 200:
                # Save the content to a local file
                with open(filename, "wb") as f:
                    f.write(response.content)
                print("File downloaded successfully!")
            else:
                print(f"Failed to download file: {response.status_code}")

            # df = pd.read_excel(filename)

            try:
                response = self.safe_app.invoke(state)
                agent_answer = response["output"]

                # agent_answer = str(df)
                # agent_answer = str(response.status_code) + " - " + task_id
            except Exception as e:
                agent_answer = str(e)

        else:
            agent_answer = fixed_answer
            # agent_answer = self.agent.run(question)


        # print(f"Agent Answer: {agent_answer}")

        return agent_answer


def run_and_submit_all( profile: gr.OAuthProfile | None):
    """
    Fetches all questions, runs the BasicAgent on them, submits all answers,
    and displays the results.
    """
    # --- Determine HF Space Runtime URL and Repo URL ---
    space_id = os.getenv("SPACE_ID") # Get the SPACE_ID for sending link to the code

    if profile:
        username= f"{profile.username}"
        print(f"User logged in: {username}")
    else:
        print("User not logged in.")
        return "Please Login to Hugging Face with the button.", None

    api_url = DEFAULT_API_URL
    questions_url = f"{api_url}/questions"
    submit_url = f"{api_url}/submit"

    # 1. Instantiate Agent ( modify this part to create your agent)
    try:
        agent = BasicAgent()
    except Exception as e:
        print(f"Error instantiating agent: {e}")
        return f"Error initializing agent: {e}", None
    # In the case of an app running as a hugging Face space, this link points toward your codebase ( usefull for others so please keep it public)
    agent_code = f"https://huggingface.co/spaces/{space_id}/tree/main"
    print(agent_code)

    # 2. Fetch Questions
    print(f"Fetching questions from: {questions_url}")
    try:
        # response = requests.get(questions_url, timeout=15)
        # response.raise_for_status()
        # questions_data = response.json()


        questions_data = [{"task_id":"8e867cd7-cff9-4e6c-867a-ff5ddc2550be","question":"How many studio albums were published by Mercedes Sosa between 2000 and 2009 (included)? You can use the latest 2022 version of english wikipedia.","Level":"1","file_name":""},{"task_id":"a1e91b78-d3d8-4675-bb8d-62741b4b68a6","question":"In the video https://www.youtube.com/watch?v=L1vXCYZAYYM, what is the highest number of bird species to be on camera simultaneously?","Level":"1","file_name":""},{"task_id":"2d83110e-a098-4ebb-9987-066c06fa42d0","question":".rewsna eht sa \"tfel\" drow eht fo etisoppo eht etirw ,ecnetnes siht dnatsrednu uoy fI","Level":"1","file_name":""},{"task_id":"cca530fc-4052-43b2-b130-b30968d8aa44","question":"Review the chess position provided in the image. It is black's turn. Provide the correct next move for black which guarantees a win. Please provide your response in algebraic notation.","Level":"1","file_name":"cca530fc-4052-43b2-b130-b30968d8aa44.png"},{"task_id":"4fc2f1ae-8625-45b5-ab34-ad4433bc21f8","question":"Who nominated the only Featured Article on English Wikipedia about a dinosaur that was promoted in November 2016?","Level":"1","file_name":""},{"task_id":"6f37996b-2ac7-44b0-8e68-6d28256631b4","question":"Given this table defining * on the set S = {a, b, c, d, e}\n\n|*|a|b|c|d|e|\n|---|---|---|---|---|---|\n|a|a|b|c|b|d|\n|b|b|c|a|e|c|\n|c|c|a|b|b|a|\n|d|b|e|b|e|d|\n|e|d|b|a|d|c|\n\nprovide the subset of S involved in any possible counter-examples that prove * is not commutative. Provide your answer as a comma separated list of the elements in the set in alphabetical order.","Level":"1","file_name":""},{"task_id":"9d191bce-651d-4746-be2d-7ef8ecadb9c2","question":"Examine the video at https://www.youtube.com/watch?v=1htKBjuUWec.\n\nWhat does Teal'c say in response to the question \"Isn't that hot?\"","Level":"1","file_name":""},{"task_id":"cabe07ed-9eca-40ea-8ead-410ef5e83f91","question":"What is the surname of the equine veterinarian mentioned in 1.E Exercises from the chemistry materials licensed by Marisa Alviar-Agnew & Henry Agnew under the CK-12 license in LibreText's Introductory Chemistry materials as compiled 08/21/2023?","Level":"1","file_name":""},{"task_id":"3cef3a44-215e-4aed-8e3b-b1e3f08063b7","question":"I'm making a grocery list for my mom, but she's a professor of botany and she's a real stickler when it comes to categorizing things. I need to add different foods to different categories on the grocery list, but if I make a mistake, she won't buy anything inserted in the wrong category. Here's the list I have so far:\n\nmilk, eggs, flour, whole bean coffee, Oreos, sweet potatoes, fresh basil, plums, green beans, rice, corn, bell pepper, whole allspice, acorns, broccoli, celery, zucchini, lettuce, peanuts\n\nI need to make headings for the fruits and vegetables. Could you please create a list of just the vegetables from my list? If you could do that, then I can figure out how to categorize the rest of the list into the appropriate categories. But remember that my mom is a real stickler, so make sure that no botanical fruits end up on the vegetable list, or she won't get them when she's at the store. Please alphabetize the list of vegetables, and place each item in a comma separated list.","Level":"1","file_name":""},{"task_id":"99c9cc74-fdc8-46c6-8f8d-3ce2d3bfeea3","question":"Hi, I'm making a pie but I could use some help with my shopping list. I have everything I need for the crust, but I'm not sure about the filling. I got the recipe from my friend Aditi, but she left it as a voice memo and the speaker on my phone is buzzing so I can't quite make out what she's saying. Could you please listen to the recipe and list all of the ingredients that my friend described? I only want the ingredients for the filling, as I have everything I need to make my favorite pie crust. I've attached the recipe as Strawberry pie.mp3.\n\nIn your response, please only list the ingredients, not any measurements. So if the recipe calls for \"a pinch of salt\" or \"two cups of ripe strawberries\" the ingredients on the list would be \"salt\" and \"ripe strawberries\".\n\nPlease format your response as a comma separated list of ingredients. Also, please alphabetize the ingredients.","Level":"1","file_name":"99c9cc74-fdc8-46c6-8f8d-3ce2d3bfeea3.mp3"},{"task_id":"305ac316-eef6-4446-960a-92d80d542f82","question":"Who did the actor who played Ray in the Polish-language version of Everybody Loves Raymond play in Magda M.? Give only the first name.","Level":"1","file_name":""},{"task_id":"f918266a-b3e0-4914-865d-4faa564f1aef","question":"What is the final numeric output from the attached Python code?","Level":"1","file_name":"f918266a-b3e0-4914-865d-4faa564f1aef.py"},{"task_id":"3f57289b-8c60-48be-bd80-01f8099ca449","question":"How many at bats did the Yankee with the most walks in the 1977 regular season have that same season?","Level":"1","file_name":""},{"task_id":"1f975693-876d-457b-a649-393859e79bf3","question":"Hi, I was out sick from my classes on Friday, so I'm trying to figure out what I need to study for my Calculus mid-term next week. My friend from class sent me an audio recording of Professor Willowbrook giving out the recommended reading for the test, but my headphones are broken :(\n\nCould you please listen to the recording for me and tell me the page numbers I'm supposed to go over? I've attached a file called Homework.mp3 that has the recording. Please provide just the page numbers as a comma-delimited list. And please provide the list in ascending order.","Level":"1","file_name":"1f975693-876d-457b-a649-393859e79bf3.mp3"},{"task_id":"840bfca7-4f7b-481a-8794-c560c340185d","question":"On June 6, 2023, an article by Carolyn Collins Petersen was published in Universe Today. This article mentions a team that produced a paper about their observations, linked at the bottom of the article. Find this paper. Under what NASA award number was the work performed by R. G. Arendt supported by?","Level":"1","file_name":""},{"task_id":"bda648d7-d618-4883-88f4-3466eabd860e","question":"Where were the Vietnamese specimens described by Kuznetzov in Nedoshivina's 2010 paper eventually deposited? Just give me the city name without abbreviations.","Level":"1","file_name":""},{"task_id":"cf106601-ab4f-4af9-b045-5295fe67b37d","question":"What country had the least number of athletes at the 1928 Summer Olympics? If there's a tie for a number of athletes, return the first in alphabetical order. Give the IOC country code as your answer.","Level":"1","file_name":""},{"task_id":"a0c07678-e491-4bbc-8f0b-07405144218f","question":"Who are the pitchers with the number before and after Taishō Tamai's number as of July 2023? Give them to me in the form Pitcher Before, Pitcher After, use their last names only, in Roman characters.","Level":"1","file_name":""},{"task_id":"7bd855d8-463d-4ed5-93ca-5fe35145f733","question":"The attached Excel file contains the sales of menu items for a local fast-food chain. What were the total sales that the chain made from food (not including drinks)? Express your answer in USD with two decimal places.","Level":"1","file_name":"7bd855d8-463d-4ed5-93ca-5fe35145f733.xlsx"},{"task_id":"5a0c1adf-205e-4841-a666-7c3ef95def9d","question":"What is the first name of the only Malko Competition recipient from the 20th Century (after 1977) whose nationality on record is a country that no longer exists?","Level":"1","file_name":""}]


        if not questions_data:
             print("Fetched questions list is empty.")
             return "Fetched questions list is empty or invalid format.", None
        print(f"Fetched {len(questions_data)} questions.")
    except requests.exceptions.RequestException as e:
        print(f"Error fetching questions: {e}")
        return f"Error fetching questions: {e}", None
    except requests.exceptions.JSONDecodeError as e:
         print(f"Error decoding JSON response from questions endpoint: {e}")
         print(f"Response text: {response.text[:500]}")
         return f"Error decoding server response for questions: {e}", None
    except Exception as e:
        print(f"An unexpected error occurred fetching questions: {e}")
        return f"An unexpected error occurred fetching questions: {e}", None





    # questions_data = [
    #     {
    #         "task_id": 1,
    #         "question": "What is the outcome of 12 squared?"
    #     },
    # ]

    # # 3. Run your Agent
    # results_log = []
    # answers_payload = []
    # print(f"Running agent on {len(questions_data)} questions...")
    # for item in questions_data:
    #     task_id = item.get("task_id")
    #     question_text = item.get("question")
    #     if not task_id or question_text is None:
    #         print(f"Skipping item with missing task_id or question: {item}")
    #         continue
    #     try:
    #         submitted_answer = agent(question_text)
    #         answers_payload.append({"task_id": task_id, "submitted_answer": submitted_answer})
    #         results_log.append({"Task ID": task_id, "Question": question_text, "Submitted Answer": submitted_answer})
    #     except Exception as e:
    #          print(f"Error running agent on task {task_id}: {e}")
    #          results_log.append({"Task ID": task_id, "Question": question_text, "Submitted Answer": f"AGENT ERROR: {e}"})

    # if not answers_payload:
    #     print("Agent did not produce any answers to submit.")
    #     return "Agent did not produce any answers to submit.", pd.DataFrame(results_log)

    # # 4. Prepare Submission 
    # submission_data = {"username": username.strip(), "agent_code": agent_code, "answers": answers_payload}
    # status_update = f"Agent finished. Submitting {len(answers_payload)} answers for user '{username}'..."
    # print(status_update)
    # results_df = pd.DataFrame(results_log)
    # print(results_df)




        

    # 3. Run your Agent
    results_log = []
    answers_payload = []
    print(f"Running agent on {len(questions_data)} questions...")
    for item in questions_data:
        task_id = item.get("task_id")
        question_text = item.get("question")
        filename = item.get("file_name")
        if not task_id or question_text is None:
            print(f"Skipping item with missing task_id or question: {item}")
            continue
        try:
            submitted_answer = agent(task_id, question_text, filename)
            answers_payload.append({"task_id": task_id, "submitted_answer": submitted_answer})
            results_log.append({"Task ID": task_id, "Question": question_text, "Submitted Answer": submitted_answer})
        except Exception as e:
             print(f"Error running agent on task {task_id}: {e}")
             results_log.append({"Task ID": task_id, "Question": question_text, "Submitted Answer": f"AGENT ERROR: {e}"})

    if not answers_payload:
        print("Agent did not produce any answers to submit.")
        return "Agent did not produce any answers to submit.", pd.DataFrame(results_log)

    # 4. Prepare Submission 
    submission_data = {"username": username.strip(), "agent_code": agent_code, "answers": answers_payload}
    status_update = f"Agent finished. Submitting {len(answers_payload)} answers for user '{username}'..."
    print(status_update)

    # 5. Submit
    print(f"Submitting {len(answers_payload)} answers to: {submit_url}")
    try:
        response = requests.post(submit_url, json=submission_data, timeout=60)
        response.raise_for_status()
        result_data = response.json()
        final_status = (
            f"Submission Successful!\n"
            f"User: {result_data.get('username')}\n"
            f"Overall Score: {result_data.get('score', 'N/A')}% "
            f"({result_data.get('correct_count', '?')}/{result_data.get('total_attempted', '?')} correct)\n"
            f"Message: {result_data.get('message', 'No message received.')}"
        )
        print("Submission successful.")
        results_df = pd.DataFrame(results_log)
        return final_status, results_df
    except requests.exceptions.HTTPError as e:
        error_detail = f"Server responded with status {e.response.status_code}."
        try:
            error_json = e.response.json()
            error_detail += f" Detail: {error_json.get('detail', e.response.text)}"
        except requests.exceptions.JSONDecodeError:
            error_detail += f" Response: {e.response.text[:500]}"
        status_message = f"Submission Failed: {error_detail}"
        print(status_message)
        results_df = pd.DataFrame(results_log)
        return status_message, results_df
    except requests.exceptions.Timeout:
        status_message = "Submission Failed: The request timed out."
        print(status_message)
        results_df = pd.DataFrame(results_log)
        return status_message, results_df
    except requests.exceptions.RequestException as e:
        status_message = f"Submission Failed: Network error - {e}"
        print(status_message)
        results_df = pd.DataFrame(results_log)
        return status_message, results_df
    except Exception as e:
        status_message = f"An unexpected error occurred during submission: {e}"
        print(status_message)
        results_df = pd.DataFrame(results_log)
        return status_message, results_df


# --- Build Gradio Interface using Blocks ---
with gr.Blocks() as demo:
    gr.Markdown("# Basic Agent Evaluation Runner")
    gr.Markdown(
        """
        **Instructions:**

        1.  Please clone this space, then modify the code to define your agent's logic, the tools, the necessary packages, etc ...
        2.  Log in to your Hugging Face account using the button below. This uses your HF username for submission.
        3.  Click 'Run Evaluation & Submit All Answers' to fetch questions, run your agent, submit answers, and see the score.

        ---
        **Disclaimers:**
        Once clicking on the "submit button, it can take quite some time ( this is the time for the agent to go through all the questions).
        This space provides a basic setup and is intentionally sub-optimal to encourage you to develop your own, more robust solution. For instance for the delay process of the submit button, a solution could be to cache the answers and submit in a seperate action or even to answer the questions in async.
        """
    )

    gr.LoginButton()

    run_button = gr.Button("Run Evaluation & Submit All Answers")

    status_output = gr.Textbox(label="Run Status / Submission Result", lines=5, interactive=False)
    # Removed max_rows=10 from DataFrame constructor
    results_table = gr.DataFrame(label="Questions and Agent Answers", wrap=True)

    run_button.click(
        fn=run_and_submit_all,
        outputs=[status_output, results_table]
    )

if __name__ == "__main__":
    print("\n" + "-"*30 + " App Starting " + "-"*30)
    # Check for SPACE_HOST and SPACE_ID at startup for information
    space_host_startup = os.getenv("SPACE_HOST")
    space_id_startup = os.getenv("SPACE_ID") # Get SPACE_ID at startup

    if space_host_startup:
        print(f"✅ SPACE_HOST found: {space_host_startup}")
        print(f"   Runtime URL should be: https://{space_host_startup}.hf.space")
    else:
        print("ℹ️  SPACE_HOST environment variable not found (running locally?).")

    if space_id_startup: # Print repo URLs if SPACE_ID is found
        print(f"✅ SPACE_ID found: {space_id_startup}")
        print(f"   Repo URL: https://huggingface.co/spaces/{space_id_startup}")
        print(f"   Repo Tree URL: https://huggingface.co/spaces/{space_id_startup}/tree/main")
    else:
        print("ℹ️  SPACE_ID environment variable not found (running locally?). Repo URL cannot be determined.")

    print("-"*(60 + len(" App Starting ")) + "\n")

    print("Launching Gradio Interface for Basic Agent Evaluation...")
    demo.launch(debug=True, share=False)