Suggestion: Remove unused functions or ensure they are called appropriately within the module.

None

Suggestion: Break the prompt string into smaller parts or use a different approach to build the prompt for better maintainability.

prompt_intro = """
    Analyze the following code changes and provide detailed review comments.
    Focus on:
    - Code quality and best practices
    - Potential security vulnerabilities
    - Performance implications
    
    Important:
    - Provide insights in the comment section for each code segment. Provide improvements in suggestions when necessary.
    - Always output the codeSegmentToFix in the diff format (e.g., '+ added code', '- removed code', 'or nothing for normal code').
    - If there is a new line in the codeSegmentToFix (when there are multiple lines), you MUST indicate it with the new line symbol.
    - Ensure that you provide all the necessary code lines in the codeSegmentToFix field.
    - If there are multiple comments for the same code segment, provide the comments separated by commas.
    """

prompt_critical = """
    CRITICAL REQUIREMENTS:
    - Precisely mention the position where the comment should be placed.
    - The codeSegmentToFix should exactly start from the start_line_with_prefix and end at the end_line_with_prefix.
    - Use the file-based line numbers provided in the structured diff below.
    - You MUST provide exact start_line_with_prefix and end_line_with_prefix numbers for each comment.
    - Never omit line numbers or the system will fail.
    """

prompt_examples = """
    Examples for start_line_with_prefix when the start_line is from new file: "+5, +2, +51, +61" 
    Examples for start_line_with_prefix when the start_line is from old file: "-8, -1, -56, -20" 
    
    Examples for end_line_with_prefix when the start_line is from new file: "+10, +2, +77, +65" 
    Examples for end_line_with_prefix when the start_line is from old file: "-1, -5, -22, -44" 
    
    Diff content:
    {structured_diff_text}
    """

prompt = f"{prompt_intro}{prompt_critical}{prompt_examples}"

Suggestion: Refactor the webhook function into smaller, focused functions to improve maintainability and adhere to the Single Responsibility Principle.

None

Suggestion: Add a docstring to the webhook function to describe its purpose and functionality.

@app.post("/webhook")
async def webhook(request: Request, x_hub_signature: str = Header(None)):
    """
    Handle incoming webhook requests from GitHub.

    This function verifies the webhook signature, processes the payload to
    determine if it is a pull request event, and initiates a code review
    process if applicable.

    Args:
        request (Request): The incoming request object.
        x_hub_signature (str): The signature header from GitHub for verification.

    Returns:
        dict: An empty dictionary as a response.
    """