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use cairo_felt::Felt252;

/// Converts a bigint representing a felt252 to a Cairo short-string.
pub fn as_cairo_short_string(value: &Felt252) -> Option<String> {
    let mut as_string = String::default();
    let mut is_end = false;
    for byte in value.to_bytes_be() {
        if byte == 0 {
            is_end = true;
        } else if is_end || !byte.is_ascii() {
            return None;
        } else {
            as_string.push(byte as char);
        }
    }
    Some(as_string)
}