nexus-sdk 2.1.0

Rust SDK for Nexus protocol types, RPC access, and transaction construction.
Documentation 
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use {
    crate::{
        move_boundary::NexusPtbBuilder,
        scheduler::SchedulerError,
        transactions::agent_input::AgentInput,
    },
    sui_sdk_types::Argument,
    talus_sui_move_call::{CallSpecError, CallTarget},
};

#[derive(Clone, Debug, PartialEq, Eq)]
pub(crate) enum ResolvedAuthority {
    Address,
    Agent(AgentInput),
}

#[derive(Clone, Copy)]
enum AgentBorrow {
    Immutable,
    Mutable,
}

/// Ordered arguments surrounding the Task and optional Agent authority.
struct AuthorityCallArguments {
    prefix: Vec<Argument>,
    task: Argument,
    tail: Vec<Argument>,
}

impl ResolvedAuthority {
    pub(crate) fn lower<T>(
        &self,
        tx: &mut NexusPtbBuilder,
        address: impl FnOnce(&mut NexusPtbBuilder) -> Result<T, SchedulerError>,
        agent: impl FnOnce(&mut NexusPtbBuilder, AgentInput) -> Result<T, SchedulerError>,
    ) -> Result<T, SchedulerError> {
        match self {
            Self::Address => address(tx),
            Self::Agent(input) => agent(tx, input.clone()),
        }
    }

    pub(crate) fn call(
        &self,
        tx: &mut NexusPtbBuilder,
        address_target: impl FnOnce() -> Result<CallTarget, CallSpecError>,
        agent_target: impl FnOnce() -> Result<CallTarget, CallSpecError>,
        task: Argument,
        tail: Vec<Argument>,
    ) -> Result<Argument, SchedulerError> {
        self.call_with_agent_borrow(
            tx,
            address_target,
            agent_target,
            AuthorityCallArguments {
                prefix: Vec::new(),
                task,
                tail,
            },
            AgentBorrow::Immutable,
        )
    }

    pub(crate) fn call_with_prefix(
        &self,
        tx: &mut NexusPtbBuilder,
        address_target: impl FnOnce() -> Result<CallTarget, CallSpecError>,
        agent_target: impl FnOnce() -> Result<CallTarget, CallSpecError>,
        prefix: Vec<Argument>,
        task: Argument,
        tail: Vec<Argument>,
    ) -> Result<Argument, SchedulerError> {
        self.call_with_agent_borrow(
            tx,
            address_target,
            agent_target,
            AuthorityCallArguments { prefix, task, tail },
            AgentBorrow::Immutable,
        )
    }

    pub(crate) fn call_mutably(
        &self,
        tx: &mut NexusPtbBuilder,
        address_target: impl FnOnce() -> Result<CallTarget, CallSpecError>,
        agent_target: impl FnOnce() -> Result<CallTarget, CallSpecError>,
        task: Argument,
        tail: Vec<Argument>,
    ) -> Result<Argument, SchedulerError> {
        self.call_with_agent_borrow(
            tx,
            address_target,
            agent_target,
            AuthorityCallArguments {
                prefix: Vec::new(),
                task,
                tail,
            },
            AgentBorrow::Mutable,
        )
    }

    fn call_with_agent_borrow(
        &self,
        tx: &mut NexusPtbBuilder,
        address_target: impl FnOnce() -> Result<CallTarget, CallSpecError>,
        agent_target: impl FnOnce() -> Result<CallTarget, CallSpecError>,
        arguments: AuthorityCallArguments,
        borrow: AgentBorrow,
    ) -> Result<Argument, SchedulerError> {
        let AuthorityCallArguments { prefix, task, tail } = arguments;
        let address_prefix = prefix.clone();
        let address_tail = tail.clone();
        self.lower(
            tx,
            |tx| {
                tx.call_target(
                    address_target,
                    address_prefix
                        .into_iter()
                        .chain(std::iter::once(task))
                        .chain(address_tail)
                        .collect(),
                )
                .map_err(SchedulerError::transaction)
            },
            |tx, agent| {
                let agent = match borrow {
                    AgentBorrow::Immutable => agent.clone().immutable_ptb_argument(tx),
                    AgentBorrow::Mutable => agent.clone().mutable_ptb_argument(tx),
                }
                .map_err(SchedulerError::transaction)?;
                let arguments = prefix
                    .into_iter()
                    .chain([task, agent])
                    .chain(tail)
                    .collect();
                tx.call_target(agent_target, arguments)
                    .map_err(SchedulerError::transaction)
            },
        )
    }
}