Instruction: Show how to implement the `format_setting_help` function in core/rsf_terms.py

Input:
Function: format_setting_help(name, include_examples, include_notes)
Docstring: Get formatted help text for a setting.

Output:
def format_setting_help(name: str, include_examples: bool = True,
                        include_notes: bool = True) -> str:
    """Get formatted help text for a setting.

    Args:
        name: Setting name
        include_examples: Include usage examples
        include_notes: Include additional notes

    Returns:
        Formatted help string
    """
    info = get_setting_info(name)
    if not info:
        return f"  {Colors.YELLOW}No help available for '{name}'{Colors.RESET}"

    lines = []
    lines.append(f"  {Colors.BOLD}{Colors.WHITE}{name.upper()}{Colors.RESET}")
    lines.append(f"  {info['description']}")

    if info.get('input_type'):
        lines.append(f"  {Colors.DIM}Type: {info['input_type']}{Colors.RESET}")

    if info.get('default'):
        lines.append(f"  {Colors.DIM}Default: {info['default']}{Colors.RESET}")

    if include_examples and info.get('examples'):
        lines.append(f"  {Colors.DIM}Examples: {', '.join(info['examples'])}{Colors.RESET}")

    if include_notes and info.get('notes'):
        lines.append(f"  {Colors.DIM}Note: {info['notes']}{Colors.RESET}")

    return '\n'.join(lines)


Instruction: Show how to implement the `validate_setting_value` function in core/rsf_terms.py

Input:
Function: validate_setting_value(name, value)
Docstring: Validate a setting value against its type.

Output:
def validate_setting_value(name: str, value: str) -> tuple:
    """Validate a setting value against its type.

    Args:
        name: Setting name
        value: Value to validate

    Returns:
        Tuple of (is_valid, error_message)
    """
    info = get_setting_info(name)
    if not info:
        return True, ""  # Unknown settings pass validation

    input_type = info.get('input_type', 'string')

    if input_type == 'port':
        try:
            port = int(value)
            if 0 <= port <= 65535:
                return True, ""
            return False, "Port must be between 0 and 65535"
        except ValueError:
            return False, "Port must be a number"

    elif input_type == 'ip':
        # Allow file:// paths for batch targeting
        if value.startswith('file://'):
            return True, ""
        # Basic IPv4 validation
        import re
        if re.match(r'^(\d{1,3}\.){3}\d{1,3}$', value):
            parts = value.split('.')
            if all(0 <= int(p) <= 255 for p in parts):
                return True, ""
            return False, "Invalid IP address octets"
        # IPv6 - basic check
        if ':' in value:
            return True, ""
        return False, "Expected IPv4 address, IPv6 address, or file:// path"

    elif input_type == 'boolean':
        if value.lower() in ('true', 'false', '1', '0', 'yes', 'no'):
            return True, ""
        return False, "Expected true/false"

    elif input_type == 'integer':
        try:
            int(value)
            return True, ""
        except ValueError:
            return False, "Expected an integer"

    return True, ""


Instruction: Show how to implement the `get_sites_db` function in core/sites_db.py

Input:
Function: get_sites_db()
Docstring: Get the global sites database instance.

Output:
def get_sites_db() -> SitesDatabase:
    """Get the global sites database instance."""
    global _sites_db
    if _sites_db is None:
        _sites_db = SitesDatabase()
    return _sites_db


Instruction: Show how to implement the `get_tool_registry` function in core/tools.py

Input:
Function: get_tool_registry()
Docstring: Get the global tool registry.

Output:
def get_tool_registry() -> ToolRegistry:
    """Get the global tool registry."""
    global _registry
    if _registry is None:
        _registry = ToolRegistry()
    return _registry


Instruction: Show how to implement the `create_icon_image` function in core/tray.py

Input:
Function: create_icon_image(size)
Docstring: Load tray icon from .ico file, falling back to programmatic generation.

Output:
def create_icon_image(size=64):
    """Load tray icon from .ico file, falling back to programmatic generation."""
    ico_path = _get_icon_path()
    if ico_path:
        try:
            img = Image.open(str(ico_path))
            img = img.resize((size, size), Image.LANCZOS)
            return img.convert('RGBA')
        except Exception:
            pass

    # Fallback: generate programmatically
    img = Image.new('RGBA', (size, size), (0, 0, 0, 0))
    draw = ImageDraw.Draw(img)
    draw.ellipse([1, 1, size - 2, size - 2], fill=(15, 15, 25, 255),
                 outline=(0, 180, 255, 255), width=2)
    try:
        font = ImageFont.truetype("arial.ttf", int(size * 0.5))
    except OSError:
        font = ImageFont.load_default()
    bbox = draw.textbbox((0, 0), "A", font=font)
    tw, th = bbox[2] - bbox[0], bbox[3] - bbox[1]
    x = (size - tw) // 2
    y = (size - th) // 2 - bbox[1]
    draw.text((x, y), "A", fill=(0, 200, 255, 255), font=font)
    return img


Instruction: Show how to implement the `get_upnp_manager` function in core/upnp.py

Input:
Function: get_upnp_manager(config)
Docstring: Get the global UPnP manager instance.

Output:
def get_upnp_manager(config=None) -> UPnPManager:
    """Get the global UPnP manager instance."""
    global _upnp_manager
    if _upnp_manager is None:
        if config is None:
            from core.config import get_config
            config = get_config()
        _upnp_manager = UPnPManager(config)
    return _upnp_manager


Instruction: Show how to implement the `get_wireshark_manager` function in core/wireshark.py

Input:
Function: get_wireshark_manager()
Docstring: Get the global WiresharkManager instance.

Output:
def get_wireshark_manager() -> WiresharkManager:
    """Get the global WiresharkManager instance."""
    global _manager
    if _manager is None:
        _manager = WiresharkManager()
    return _manager