video_analyzer.py

from typing import Optional
from google import genai
from google.genai import types
import os

def analyze_video(video_url: str, analysis_prompt: Optional[str] = None) -> str:
    """
    Analyze a YouTube video using Google Gemini API. Creates summary of the video content.
    
    Args:
        video_url (str): Url path to a YouTube video to anlyze
        analysis_prompt (Optional[str]): Optional prompt for specific analysis focus
        
    Returns:
        str: Text containing analysis results
    """
    try:
        # Initialize Google Gen client

        gemini_llm =  genai.Client(api_key=os.getenv("GOOGLE_API_KEY"))
        
        print(f"Analyzing video from URL {video_url}")

        text=analysis_prompt or "Provide a detailed description of this video."

        # Get response from Gemini Flash 2.0 Vision
        response = gemini_llm.models.generate_content(
        model='models/gemini-2.0-flash',
        contents=types.Content(
                parts=[
                    types.Part(
                        file_data=types.FileData(file_uri=video_url)
                    ),
                    types.Part(text=text)
                ]
            )
        )

        print(response.text)
        return response.text
            
    except Exception as e:
        return {"error": f"Error analyzing video: {str(e)}"}