///|
/// Utility functions for rendering prompts.
/// Note: Terminal control functions are placeholders for future implementation.

///|
/// Placeholder for hiding cursor (no-op in this version)
pub fn hide_cursor() -> Unit {
  // Terminal control not implemented in this version
  // Future implementation: print "\x1b[?25l"
}

///|
/// Placeholder for showing cursor (no-op in this version)
pub fn show_cursor() -> Unit {
  // Terminal control not implemented in this version
  // Future implementation: print "\x1b[?25h"
}

///|
/// Placeholder for clearing line (no-op in this version)
pub fn clear_line() -> Unit {
  // Terminal control not implemented in this version
  // Future implementation: print "\x1b[2K\r"
}

///|
/// Placeholder for moving cursor up (no-op in this version)
pub fn move_cursor_up(_n : Int) -> Unit {
  // Terminal control not implemented in this version
  // Future implementation: print "\x1b[{n}A"
}

///|
/// Placeholder for moving cursor down (no-op in this version)
pub fn move_cursor_down(_n : Int) -> Unit {
  // Terminal control not implemented in this version
  // Future implementation: print "\x1b[{n}B"
}

///|
/// Placeholder for moving cursor to start (no-op in this version)
pub fn move_cursor_to_start() -> Unit {
  // Terminal control not implemented in this version
  // Future implementation: print "\r"
}

///|
pub fn render_prompt(message : String, default? : String) -> String {
  match default {
    Some(d) => "\{message} [\{d}]: "
    None => "\{message}: "
  }
}

///|
pub fn render_list_item(
  _index : Int,
  choice : String,
  selected : Bool,
) -> String {
  let indicator = if selected { "❯" } else { " " }
  "\{indicator} \{choice}"
}

///|
pub fn render_checkbox_item(
  _index : Int,
  choice : String,
  checked : Bool,
) -> String {
  let indicator = if checked { "◉" } else { "◯" }
  "\{indicator} \{choice}"
}

///|
pub fn render_rawlist_item(index : Int, choice : String) -> String {
  "\{index + 1}) \{choice}"
}

///|
pub fn render_expand_item(key : String, choice : String) -> String {
  "\{key}) \{choice}"
}

///|
pub fn mask_password(input : String) -> String {
  let len = input.length()
  let mut result = ""
  for _ in 0..