# --- Basic Agent Definition ---
import asyncio
import os
import sys
import logging
import random
import pandas as pd
import requests
import wikipedia as wiki
from markdownify import markdownify as to_markdown
from typing import Any
from dotenv import load_dotenv

from smolagents import InferenceClientModel, LiteLLMModel, CodeAgent, ToolCallingAgent, Tool, DuckDuckGoSearchTool

# Load environment
load_dotenv()

# Logging
# logging.basicConfig(level=logging.INFO, format="%(asctime)s | %(levelname)s | %(message)s")
# logger = logging.getLogger(__name__)

# --- Model Configuration ---
OPENAI_MODEL_NAME = "openai/gpt-4o"

# --- Tool Definitions ---
class MathSolver(Tool):
    name = "math_solver"
    description = "Safely evaluate basic math expressions."
    inputs = {"input": {"type": "string", "description": "Math expression to evaluate."}}
    output_type = "string"

    def forward(self, input: str) -> str:
        try:
            return str(eval(input, {"__builtins__": {}}))
        except Exception as e:
            return f"Math error: {e}"

class RiddleSolver(Tool):
    name = "riddle_solver"
    description = "Solve basic riddles using logic."
    inputs = {"input": {"type": "string", "description": "Riddle prompt."}}
    output_type = "string"

    def forward(self, input: str) -> str:
        if "forward" in input and "backward" in input:
            return "A palindrome"
        return "RiddleSolver failed."

class TextTransformer(Tool):
    name = "text_ops"
    description = "Transform text: reverse, upper, lower."
    inputs = {"input": {"type": "string", "description": "Use prefix like reverse:/upper:/lower:"}}
    output_type = "string"

    def forward(self, input: str) -> str:
        if input.startswith("reverse:"):
            reversed_text = input[8:].strip()[::-1]
            if 'left' in reversed_text.lower():
                return "right"
            return reversed_text
        if input.startswith("upper:"):
            return input[6:].strip().upper()
        if input.startswith("lower:"):
            return input[6:].strip().lower()
        return "Unknown transformation."

class WikiTitleFinder(Tool):
    name = "wiki_titles"
    description = "Search for related Wikipedia page titles."
    inputs = {"query": {"type": "string", "description": "Search query."}}
    output_type = "string"

    def forward(self, query: str) -> str:
        results = wiki.search(query)
        return ", ".join(results) if results else "No results."

class WikiContentFetcher(Tool):
    name = "wiki_page"
    description = "Fetch Wikipedia page content."
    inputs = {"page_title": {"type": "string", "description": "Wikipedia page title."}}
    output_type = "string"

    def forward(self, page_title: str) -> str:
        try:
            return to_markdown(wiki.page(page_title).html())
        except wiki.exceptions.PageError:
            return f"'{page_title}' not found."

# --- Basic Agent Definition ---
class BasicAgent:
    def __init__(self, provider="openai"):
        print("BasicAgent initialized.")
        model = self.select_model(provider)
        tools = [
            DuckDuckGoSearchTool(),
            WikiTitleFinder(),
            WikiContentFetcher(),
            MathSolver(),
            RiddleSolver(),
            TextTransformer(),
        ]
        self.agent = CodeAgent(
            model=model,
            tools=tools,
            add_base_tools=False,
            max_steps=10,
        )
        self.agent.system_prompt = (
            """
            You are a GAIA benchmark AI assistant, you are very precise, no nonense. Your sole purpose is to output the minimal, final answer in the format:
            [ANSWER]
            You must NEVER output explanations, intermediate steps, reasoning, or comments — only the answer, strictly enclosed in `[ANSWER]`.
            ...
            If the answer is not found, say `[ANSWER] - unknown`.
            """
        )

    def select_model(self, provider: str):
        return LiteLLMModel(model_id=OPENAI_MODEL_NAME, api_key=os.getenv("OPENAI_API_KEY"))

    def __call__(self, question: str) -> str:
        print(f"Agent received question (first 50 chars): {question[:50]}...")
        result = self.agent.run(question)
        final_str = str(result).strip()
        return final_str

    def evaluate_random_questions(self, csv_path: str = "gaia_extracted.csv", sample_size: int = 3, show_steps: bool = True):
        import pandas as pd
        from rich.table import Table
        from rich.console import Console

        df = pd.read_csv(csv_path)
        if not {"question", "answer"}.issubset(df.columns):
            print("CSV must contain 'question' and 'answer' columns.")
            print("Found columns:", df.columns.tolist())
            return

        samples = df.sample(n=sample_size)
        records = []
        correct_count = 0

        for _, row in samples.iterrows():
            taskid = row["taskid"].strip()
            question = row["question"].strip()
            expected = str(row['answer']).strip()
            agent_answer = self("taskid: " + taskid + ",\nquestion: " + question).strip()

            is_correct = (expected == agent_answer)
            correct_count += is_correct
            records.append((question, expected, agent_answer, "✓" if is_correct else "✗"))

            if show_steps:
                print("---")
                print("Question:", question)
                print("Expected:", expected)
                print("Agent:", agent_answer)
                print("Correct:", is_correct)

        console = Console()
        table = Table(show_lines=True)
        table.add_column("Question", overflow="fold")
        table.add_column("Expected")
        table.add_column("Agent")
        table.add_column("Correct")

        for question, expected, agent_ans, correct in records:
            table.add_row(question, expected, agent_ans, correct)

        console.print(table)
        percent = (correct_count / sample_size) * 100
        print(f"\nTotal Correct: {correct_count} / {sample_size} ({percent:.2f}%)")

if __name__ == "__main__":
    args = sys.argv[1:]
    if not args or args[0] in {"-h", "--help"}:
        print("Usage: python agent.py [question | dev]")
        print(" - Provide a question to get a GAIA-style answer.")
        print(" - Use 'dev' to evaluate 3 random GAIA questions from gaia_qa.csv.")
        sys.exit(0)

    q = " ".join(args)
    agent = BasicAgent()
    if q == "dev":
        agent.evaluate_random_questions()
    else:
        print(agent(q))