from crewai import Agent, Task, Crew
from crewai_tools import ScrapegraphScrapeTool

# Initialize the tool
scrape_tool = ScrapegraphScrapeTool(api_key="your_api_key")

# Define an agent that uses the tool
web_scraper_agent = Agent(
    role="Web Scraper",
    goal="Extract specific information from websites",
    backstory="An expert in web scraping who can extract targeted content from web pages.",
    tools=[scrape_tool],
    verbose=True,
)

# Example task to extract product information from an e-commerce site
scrape_task = Task(
    description="Extract product names, prices, and descriptions from the featured products section of example.com.",
    expected_output="A structured list of product information including names, prices, and descriptions.",
    agent=web_scraper_agent,
)

# Create and run the crew
crew = Crew(agents=[web_scraper_agent], tasks=[scrape_task])
result = crew.kickoff()

# Initialize the tool with predefined parameters
scrape_tool = ScrapegraphScrapeTool(
    website_url="https://www.example.com",
    user_prompt="Extract all product prices and descriptions",
    api_key="your_api_key"
)

# Example of using the tool with an agent
web_scraper_agent = Agent(
    role="Web Scraper",
    goal="Extract specific information from websites",
    backstory="An expert in web scraping who can extract targeted content from web pages.",
    tools=[scrape_tool],
    verbose=True,
)

# Create a task for the agent to extract specific content
extract_task = Task(
    description="Extract the main heading and summary from example.com",
    expected_output="The main heading and summary from the website",
    agent=web_scraper_agent,
)

# Run the task
crew = Crew(agents=[web_scraper_agent], tasks=[extract_task])
result = crew.kickoff()

# Create a task that includes error handling instructions
robust_extract_task = Task(
    description="""
    Extract the main heading from example.com.
    Be aware that you might encounter errors such as:
    - Invalid URL format
    - Missing API key
    - Rate limit exceeded
    - Network or API errors
    
    If you encounter any errors, provide a clear explanation of what went wrong
    and suggest possible solutions.
    """,
    expected_output="Either the extracted heading or a clear error explanation",
    agent=web_scraper_agent,
)

class ScrapegraphScrapeTool(BaseTool):
    """
    A tool that uses Scrapegraph AI to intelligently scrape website content.
    """
    
    # Implementation details...
    
    def _run(self, **kwargs: Any) -> Any:
        website_url = kwargs.get("website_url", self.website_url)
        user_prompt = (
            kwargs.get("user_prompt", self.user_prompt)
            or "Extract the main content of the webpage"
        )

        if not website_url:
            raise ValueError("website_url is required")

        # Validate URL format
        self._validate_url(website_url)

        try:
            # Make the SmartScraper request
            response = self._client.smartscraper(
                website_url=website_url,
                user_prompt=user_prompt,
            )

            return response
        # Error handling...