miden-multisig-client 0.14.3

//! Well-known procedure roots for multisig accounts.
//!
//! Extracted from: `cargo run --example procedure_roots -p miden-multisig-client -- --json`

use miden_protocol::Word;

/// Procedure names that can be used for threshold overrides.
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub enum ProcedureName {
    UpdateSigners,
    UpdateProcedureThreshold,
    AuthTx,
    UpdateGuardian,
    VerifyGuardian,
    SendAsset,
    ReceiveAsset,
}

impl ProcedureName {
    /// Get the procedure root for this procedure name.
    ///
    /// These roots are deterministic based on the MASM bytecode.
    pub fn root(&self) -> Word {
        match self {
            ProcedureName::UpdateSigners => procedure_root_word(
                "0x3d382ad461f9914c487c6fe908991d088eb54ecbd4aa8560ef79c66c3746bf19",
            ),
            ProcedureName::UpdateProcedureThreshold => procedure_root_word(
                "0x1f43e9d56ceff5d547ffdcb89896fb38cae0be1b74d9235ed2b4aa525df85f8d",
            ),
            ProcedureName::AuthTx => procedure_root_word(
                "0x415530d7169f849d7219e810065f9119bba9af2c55070de0bf4f082a1c0aea5c",
            ),
            ProcedureName::UpdateGuardian => procedure_root_word(
                "0xc8ea876f1837e5cd1d6031becdbd40ce262ecd55930d65400f6890a37149d80c",
            ),
            ProcedureName::VerifyGuardian => procedure_root_word(
                "0x9bc6e7b25c8dbaa29d6ad41e354a545dd0a4bac7f3a521bb5195ba101f0213cc",
            ),
            ProcedureName::SendAsset => procedure_root_word(
                "0x6d30df4312a2c44ec842db1bee227cc045396ca91e2c47d756dcb607f2bf5f89",
            ),
            ProcedureName::ReceiveAsset => procedure_root_word(
                "0x75f638c65584d058542bcf4674b066ae394183021bc9b44dc2fdd97d52f9bcfb",
            ),
        }
    }

    /// Get all available procedure names.
    pub fn all() -> &'static [ProcedureName] {
        &[
            ProcedureName::UpdateSigners,
            ProcedureName::UpdateProcedureThreshold,
            ProcedureName::AuthTx,
            ProcedureName::UpdateGuardian,
            ProcedureName::VerifyGuardian,
            ProcedureName::SendAsset,
            ProcedureName::ReceiveAsset,
        ]
    }
}

/// Per-procedure threshold override.
///
/// Allows specifying different signature thresholds for specific procedures.
///
/// # Example
///
/// ```
/// use miden_multisig_client::{ProcedureThreshold, ProcedureName};
///
/// let receive_threshold = ProcedureThreshold::new(ProcedureName::ReceiveAsset, 1);
/// let config_threshold = ProcedureThreshold::new(ProcedureName::UpdateSigners, 3);
/// ```
#[derive(Debug, Clone, Copy)]
pub struct ProcedureThreshold {
    pub procedure: ProcedureName,
    pub threshold: u32,
}

impl ProcedureThreshold {
    pub fn new(procedure: ProcedureName, threshold: u32) -> Self {
        Self {
            procedure,
            threshold,
        }
    }

    pub fn procedure_root(&self) -> Word {
        self.procedure.root()
    }
}

impl std::fmt::Display for ProcedureName {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        match self {
            ProcedureName::UpdateSigners => write!(f, "update_signers"),
            ProcedureName::UpdateProcedureThreshold => write!(f, "update_procedure_threshold"),
            ProcedureName::AuthTx => write!(f, "auth_tx"),
            ProcedureName::UpdateGuardian => write!(f, "update_guardian"),
            ProcedureName::VerifyGuardian => write!(f, "verify_guardian"),
            ProcedureName::SendAsset => write!(f, "send_asset"),
            ProcedureName::ReceiveAsset => write!(f, "receive_asset"),
        }
    }
}

impl std::str::FromStr for ProcedureName {
    type Err = String;

    fn from_str(s: &str) -> Result<Self, Self::Err> {
        match s {
            "update_signers" => Ok(ProcedureName::UpdateSigners),
            "update_procedure_threshold" => Ok(ProcedureName::UpdateProcedureThreshold),
            "auth_tx" => Ok(ProcedureName::AuthTx),
            "update_guardian" => Ok(ProcedureName::UpdateGuardian),
            "verify_guardian" => Ok(ProcedureName::VerifyGuardian),
            "send_asset" => Ok(ProcedureName::SendAsset),
            "receive_asset" => Ok(ProcedureName::ReceiveAsset),
            _ => Err(format!("unknown procedure name: {}", s)),
        }
    }
}

fn procedure_root_word(hex_str: &str) -> Word {
    Word::parse(hex_str).expect("valid procedure root constant")
}

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

    #[test]
    fn procedure_threshold_new_creates_correctly() {
        let threshold = ProcedureThreshold::new(ProcedureName::ReceiveAsset, 1);
        assert_eq!(threshold.procedure, ProcedureName::ReceiveAsset);
        assert_eq!(threshold.threshold, 1);
    }

    #[test]
    fn procedure_threshold_procedure_root_returns_correct_root() {
        let threshold = ProcedureThreshold::new(ProcedureName::SendAsset, 2);
        assert_eq!(threshold.procedure_root(), ProcedureName::SendAsset.root());
    }

    #[test]
    fn procedure_name_round_trip() {
        for name in ProcedureName::all() {
            let s = name.to_string();
            let parsed: ProcedureName = s.parse().unwrap();
            assert_eq!(*name, parsed);
        }
    }

    #[test]
    fn procedure_roots_are_valid() {
        for name in ProcedureName::all() {
            let _root = name.root();
        }
    }

    #[test]
    fn parse_unknown_returns_error() {
        let result: Result<ProcedureName, _> = "unknown_proc".parse();
        assert!(result.is_err());
    }
}