import re 
from typing import Any
from smolagents.tools import Tool

class DuckDuckGoSearchTool(Tool):
    name = "web_search"
    description = "Performs a duckduckgo web search based on your query (think a Google search) then returns the top search results."
    inputs = {'query': {'type': 'string', 'description': 'The search query to perform.'}}
    output_type = "string"

    def __init__(self, max_results=10, **kwargs):
        super().__init__()
        self.max_results = max_results
        try:
            from duckduckgo_search import DDGS
        except ImportError as e:
            raise ImportError(
                "You must install package `duckduckgo_search` to run this tool: for instance run `pip install duckduckgo-search`."
            ) from e
        self.ddgs = DDGS(**kwargs)

    def forward(self, query: str) -> str:
        results = self.ddgs.text(query, max_results=self.max_results)
        if len(results) == 0:
            raise Exception("No results found! Try a less restrictive/shorter query.")
        postprocessed_results = [f"[{result['title']}]({result['href']})\n{result['body']}" for result in results]
        return "## Search Results\n\n" + "\n\n".join(postprocessed_results)


class VisitWebpageTool(Tool):
    name = "visit_webpage"
    description = "Visits a webpage at the given url and reads its content as a markdown string. Use this to browse webpages."
    inputs = {'url': {'type': 'string', 'description': 'The url of the webpage to visit.'}}
    output_type = "string"

    def forward(self, url: str) -> str:
        try:
            import requests
            from markdownify import markdownify
            from requests.exceptions import RequestException

            from smolagents.utils import truncate_content
        except ImportError as e:
            raise ImportError(
                "You must install packages `markdownify` and `requests` to run this tool: for instance run `pip install markdownify requests`."
            ) from e
        try:
            # Send a GET request to the URL with a 20-second timeout
            response = requests.get(url, timeout=20)
            response.raise_for_status()  # Raise an exception for bad status codes

            # Convert the HTML content to Markdown
            markdown_content = markdownify(response.text).strip()

            # Remove multiple line breaks
            markdown_content = re.sub(r"\n{3,}", "\n\n", markdown_content)

            return truncate_content(markdown_content, 10000)

        except requests.exceptions.Timeout:
            return "The request timed out. Please try again later or check the URL."
        except RequestException as e:
            return f"Error fetching the webpage: {str(e)}"
        except Exception as e:
            return f"An unexpected error occurred: {str(e)}"

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.is_initialized = False

class ReadPythonScript(Tool):
    name = "read_python_script"
    description ="Reads a given python script and returns ist content as a string" 
    inputs = {"file_path":{'type':'string','description':'The path of the given python file'}}
    output_type = "string"

    def forward(self,file_path:str)->str:
        with open(file_path) as f : 
            file_content = f.read()

        return file_content
    
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.is_initialized=False


class FinalAnswerTool(Tool):
    name = "final_answer"
    description = "Provides a final answer to the given problem."
    inputs = {'answer': {'type': 'any', 'description': 'The final answer to the problem'}}
    output_type = "any"

    def forward(self, answer: Any) -> Any:
        return answer

    def __init__(self, *args, **kwargs):
        self.is_initialized = False