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use std::io::Write;

/// Does a readline from stdin and returns a trimmed string in a Result
/// # Arguments
///
/// * `prompt` - A string slice that is displayed as a prompt to the user
///
/// # Examples
///
/// ```
/// let name = oh::input("What's your name? : ").expect("Error at input.");
/// println!("Oh! So your name is {}!", name);
/// ```
pub fn input(prompt: &str) -> Result<String, std::io::Error> {
    print!("{}", prompt);
    std::io::stdout().flush().unwrap();
    let mut result = String::new();
    match std::io::stdin().read_line(&mut result) {
        Ok(_) => Ok(result.trim().to_string()),
        Err(err) => Err(err),
    }
}