ssi-sd-jwt 0.2.0

use crate::Deserialized;

/// Lower level API to encode a fully encoded SD-JWT given a JWT and disclosure array
/// already fully encoded into their string representations
pub fn serialize_string_format(jwt: &str, disclosures: &[&str]) -> String {
    let mut serialized = format!("{}~", jwt);

    for disclosure in disclosures {
        serialized = format!("{}{}~", serialized, disclosure)
    }

    serialized
}

/// Lower level API to seserialize a fully encoded SD-JWT into it's JWT and disclosure
/// components
pub fn deserialize_string_format(serialized: &str) -> Option<Deserialized<'_>> {
    if !serialized.contains('~') {
        return None;
    }
    let mut items = serialized.split('~');
    let jwt = items.next()?;

    let mut disclosures: Vec<_> = items.collect();

    // Remove Key Binding JWT
    if disclosures.len() > 1 {
        disclosures.pop();
    }

    Some(Deserialized { jwt, disclosures })
}

#[cfg(test)]
mod tests {
    use super::*;

    const ENCODED: &str = concat!(
        "eyJhbGciOiAiRVMyNTYifQ.eyJfc2QiOiBbIkM5aW5wNllvUmFFWFI0Mjd6WUpQN1Fya",
        "zFXSF84YmR3T0FfWVVyVW5HUVUiLCAiS3VldDF5QWEwSElRdlluT1ZkNTloY1ZpTzlVZ",
        "zZKMmtTZnFZUkJlb3d2RSIsICJNTWxkT0ZGekIyZDB1bWxtcFRJYUdlcmhXZFVfUHBZZ",
        "kx2S2hoX2ZfOWFZIiwgIlg2WkFZT0lJMnZQTjQwVjd4RXhad1Z3ejd5Um1MTmNWd3Q1R",
        "Ew4Ukx2NGciLCAiWTM0em1JbzBRTExPdGRNcFhHd2pCZ0x2cjE3eUVoaFlUMEZHb2ZSL",
        "WFJRSIsICJmeUdwMFdUd3dQdjJKRFFsbjFsU2lhZW9iWnNNV0ExMGJRNTk4OS05RFRzI",
        "iwgIm9tbUZBaWNWVDhMR0hDQjB1eXd4N2ZZdW8zTUhZS08xNWN6LVJaRVlNNVEiLCAic",
        "zBCS1lzTFd4UVFlVTh0VmxsdE03TUtzSVJUckVJYTFQa0ptcXhCQmY1VSJdLCAiaXNzI",
        "jogImh0dHBzOi8vZXhhbXBsZS5jb20vaXNzdWVyIiwgImlhdCI6IDE2ODMwMDAwMDAsI",
        "CJleHAiOiAxODgzMDAwMDAwLCAiYWRkcmVzcyI6IHsiX3NkIjogWyI2YVVoelloWjdTS",
        "jFrVm1hZ1FBTzN1MkVUTjJDQzFhSGhlWnBLbmFGMF9FIiwgIkF6TGxGb2JrSjJ4aWF1c",
        "FJFUHlvSnotOS1OU2xkQjZDZ2pyN2ZVeW9IemciLCAiUHp6Y1Z1MHFiTXVCR1NqdWxmZ",
        "Xd6a2VzRDl6dXRPRXhuNUVXTndrclEtayIsICJiMkRrdzBqY0lGOXJHZzhfUEY4WmN2b",
        "mNXN3p3Wmo1cnlCV3ZYZnJwemVrIiwgImNQWUpISVo4VnUtZjlDQ3lWdWIyVWZnRWs4a",
        "nZ2WGV6d0sxcF9KbmVlWFEiLCAiZ2xUM2hyU1U3ZlNXZ3dGNVVEWm1Xd0JUdzMyZ25Vb",
        "GRJaGk4aEdWQ2FWNCIsICJydkpkNmlxNlQ1ZWptc0JNb0d3dU5YaDlxQUFGQVRBY2k0M",
        "G9pZEVlVnNBIiwgInVOSG9XWWhYc1poVkpDTkUyRHF5LXpxdDd0NjlnSkt5NVFhRnY3R",
        "3JNWDQiXX0sICJfc2RfYWxnIjogInNoYS0yNTYifQ.rFsowW-KSZe7EITlWsGajR9nnG",
        "BLlQ78qgtdGIZg3FZuZnxtapP0H8CUMnffJAwPQJmGnpFpulTkLWHiI1kMmw~WyJHMDJ",
        "OU3JRZmpGWFE3SW8wOXN5YWpBIiwgInJlZ2lvbiIsICJcdTZlMmZcdTUzM2EiXQ~WyJs",
        "a2x4RjVqTVlsR1RQVW92TU5JdkNBIiwgImNvdW50cnkiLCAiSlAiXQ~"
    );

    const JWT: &str = concat!(
        "eyJhbGciOiAiRVMyNTYifQ.eyJfc2QiOiBbIkM5aW5wNllvUmFFWFI0Mjd6WUpQN1Fya",
        "zFXSF84YmR3T0FfWVVyVW5HUVUiLCAiS3VldDF5QWEwSElRdlluT1ZkNTloY1ZpTzlVZ",
        "zZKMmtTZnFZUkJlb3d2RSIsICJNTWxkT0ZGekIyZDB1bWxtcFRJYUdlcmhXZFVfUHBZZ",
        "kx2S2hoX2ZfOWFZIiwgIlg2WkFZT0lJMnZQTjQwVjd4RXhad1Z3ejd5Um1MTmNWd3Q1R",
        "Ew4Ukx2NGciLCAiWTM0em1JbzBRTExPdGRNcFhHd2pCZ0x2cjE3eUVoaFlUMEZHb2ZSL",
        "WFJRSIsICJmeUdwMFdUd3dQdjJKRFFsbjFsU2lhZW9iWnNNV0ExMGJRNTk4OS05RFRzI",
        "iwgIm9tbUZBaWNWVDhMR0hDQjB1eXd4N2ZZdW8zTUhZS08xNWN6LVJaRVlNNVEiLCAic",
        "zBCS1lzTFd4UVFlVTh0VmxsdE03TUtzSVJUckVJYTFQa0ptcXhCQmY1VSJdLCAiaXNzI",
        "jogImh0dHBzOi8vZXhhbXBsZS5jb20vaXNzdWVyIiwgImlhdCI6IDE2ODMwMDAwMDAsI",
        "CJleHAiOiAxODgzMDAwMDAwLCAiYWRkcmVzcyI6IHsiX3NkIjogWyI2YVVoelloWjdTS",
        "jFrVm1hZ1FBTzN1MkVUTjJDQzFhSGhlWnBLbmFGMF9FIiwgIkF6TGxGb2JrSjJ4aWF1c",
        "FJFUHlvSnotOS1OU2xkQjZDZ2pyN2ZVeW9IemciLCAiUHp6Y1Z1MHFiTXVCR1NqdWxmZ",
        "Xd6a2VzRDl6dXRPRXhuNUVXTndrclEtayIsICJiMkRrdzBqY0lGOXJHZzhfUEY4WmN2b",
        "mNXN3p3Wmo1cnlCV3ZYZnJwemVrIiwgImNQWUpISVo4VnUtZjlDQ3lWdWIyVWZnRWs4a",
        "nZ2WGV6d0sxcF9KbmVlWFEiLCAiZ2xUM2hyU1U3ZlNXZ3dGNVVEWm1Xd0JUdzMyZ25Vb",
        "GRJaGk4aEdWQ2FWNCIsICJydkpkNmlxNlQ1ZWptc0JNb0d3dU5YaDlxQUFGQVRBY2k0M",
        "G9pZEVlVnNBIiwgInVOSG9XWWhYc1poVkpDTkUyRHF5LXpxdDd0NjlnSkt5NVFhRnY3R",
        "3JNWDQiXX0sICJfc2RfYWxnIjogInNoYS0yNTYifQ.rFsowW-KSZe7EITlWsGajR9nnG",
        "BLlQ78qgtdGIZg3FZuZnxtapP0H8CUMnffJAwPQJmGnpFpulTkLWHiI1kMmw"
    );

    const DISCLOSURE_0: &str =
        "WyJHMDJOU3JRZmpGWFE3SW8wOXN5YWpBIiwgInJlZ2lvbiIsICJcdTZlMmZcdTUzM2EiXQ";
    const DISCLOSURE_1: &str = "WyJsa2x4RjVqTVlsR1RQVW92TU5JdkNBIiwgImNvdW50cnkiLCAiSlAiXQ";

    #[test]
    fn serialize() {
        assert_eq!(
            serialize_string_format(JWT, &[DISCLOSURE_0, DISCLOSURE_1]),
            ENCODED,
        )
    }

    #[test]
    fn deserialize() {
        assert_eq!(
            deserialize_string_format(ENCODED),
            Some(Deserialized {
                jwt: JWT,
                disclosures: vec![DISCLOSURE_0, DISCLOSURE_1],
            })
        )
    }

    #[test]
    fn deserialize_fails_with_emtpy() {
        assert_eq!(deserialize_string_format(""), None)
    }
}