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//! Set Daily Withdrawal Limit Proposal.
use proposal_derive::Proposal;

use crate::ProposalHeader;

/// Updates the daily withdrawal limit on the variable anchor system.
///
/// The [`SetDailyWithdrawalLimitProposal`] updates the daily withdrawal limit
/// amount allowed on the variable anchor system.
///
/// The format of the proposal looks like:
/// ```text
/// ┌────────────────────┬───────────────────────────┐
/// │                    │                           │
/// │ ProposalHeader 40B │ DailyWithdrawalLimit 32B  │
/// │                    │                           │
/// └────────────────────┴───────────────────────────┘
/// ```
#[derive(
    Proposal,
    Debug,
    Copy,
    Clone,
    PartialEq,
    Eq,
    Hash,
    serde::Serialize,
    serde::Deserialize,
)]
#[proposal(
    function_sig = "function setDailyWithdrawalLimit(uint256 _limit, uint32 _nonce)"
)]
pub struct SetDailyWithdrawalLimitProposal {
    header: ProposalHeader,
    daily_withdrawal_limit: [u8; 32],
}

#[cfg(test)]
mod tests {
    use crate::{
        FunctionSignature, Nonce, ResourceId, TargetSystem, TypedChainId,
    };

    use super::*;

    #[test]
    fn encode() {
        let target_system = TargetSystem::new_contract_address(
            hex_literal::hex!("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"),
        );
        let target_chain = TypedChainId::Evm(4);
        let resource_id = ResourceId::new(target_system, target_chain);
        let function_signature =
            FunctionSignature::new(hex_literal::hex!("cafebabe"));
        let nonce = Nonce::from(0x0001);
        let header =
            ProposalHeader::new(resource_id, function_signature, nonce);
        let limit = hex_literal::hex!(
            "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f"
        );
        let proposal = SetDailyWithdrawalLimitProposal::new(header, limit);
        let bytes = crate::to_vec(&proposal).unwrap();
        let expected = hex_literal::hex!(
            "000000000000aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa010000000004"
            "cafebabe00000001000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f"
        );
        assert_eq!(bytes, expected);
    }

    #[test]
    fn decode() {
        let bytes = hex_literal::hex!(
            "000000000000aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa010000000004"
            "cafebabe00000001000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f"
        );
        let proposal =
            crate::from_slice::<SetDailyWithdrawalLimitProposal>(&bytes)
                .unwrap();
        let header = proposal.header();
        let resource_id = header.resource_id();
        let target_system = resource_id.target_system();
        let target_chain = resource_id.typed_chain_id();
        let function_signature = header.function_signature();
        let nonce = header.nonce();
        let limit = proposal.daily_withdrawal_limit();
        assert_eq!(
            target_system,
            TargetSystem::new_contract_address(hex_literal::hex!(
                "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
            ))
        );
        assert_eq!(target_chain, TypedChainId::Evm(4));
        assert_eq!(
            function_signature,
            FunctionSignature::new(hex_literal::hex!("cafebabe"))
        );
        assert_eq!(nonce, Nonce::from(0x0001));
        assert_eq!(
            limit,
            &hex_literal::hex!(
                "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f"
            )
        );
    }
}