carbon-orca-whirlpool-decoder 1.0.0

Orca Whirlpool Decoder
Documentation 
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//! This code was AUTOGENERATED using the Codama library.
use carbon_core::{account_utils::next_account, deserialize::ArrangeAccounts};
/// Sets the adaptive fee constants for an AdaptiveFeeTier.
/// Only the current fee authority in WhirlpoolsConfig has permission to invoke
/// this instruction. ### Authority
/// - "fee_authority" - Set authority in the WhirlpoolConfig
///
/// ### Parameters
/// - `filter_period` - Period determine high frequency trading time window.
///   (seconds)
/// - `decay_period` - Period determine when the adaptive fee start decrease.
///   (seconds)
/// - `reduction_factor` - Adaptive fee rate decrement rate.
/// - `adaptive_fee_control_factor` - Adaptive fee control factor.
/// - `max_volatility_accumulator` - Max volatility accumulator.
/// - `tick_group_size` - Tick group size to define tick group index.
/// - `major_swap_threshold_ticks` - Major swap threshold ticks to define major
///   swap.
#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
#[derive(Debug, Clone, borsh::BorshSerialize, borsh::BorshDeserialize, PartialEq)]
pub struct SetPresetAdaptiveFeeConstants {
    pub filter_period: u16,
    pub decay_period: u16,
    pub reduction_factor: u16,
    pub adaptive_fee_control_factor: u32,
    pub max_volatility_accumulator: u32,
    pub tick_group_size: u16,
    pub major_swap_threshold_ticks: u16,
}

#[derive(Debug, Clone, PartialEq)]
#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
pub struct SetPresetAdaptiveFeeConstantsInstructionAccounts {
    pub whirlpools_config: solana_pubkey::Pubkey,
    pub adaptive_fee_tier: solana_pubkey::Pubkey,
    pub fee_authority: solana_pubkey::Pubkey,
    pub remaining: Vec<solana_instruction::AccountMeta>,
}

impl SetPresetAdaptiveFeeConstants {
    pub fn decode(data: &[u8]) -> Option<Self> {
        if data.len() < 8 {
            return None;
        }
        let discriminator = &data[0..8];
        if discriminator != [132, 185, 66, 148, 83, 88, 134, 198] {
            return None;
        }

        let mut data_slice = data;

        data_slice = &data_slice[8..];

        borsh::BorshDeserialize::deserialize(&mut data_slice).ok()
    }
}

impl ArrangeAccounts for SetPresetAdaptiveFeeConstants {
    type ArrangedAccounts = SetPresetAdaptiveFeeConstantsInstructionAccounts;

    fn arrange_accounts(
        accounts: &[solana_instruction::AccountMeta],
    ) -> Option<Self::ArrangedAccounts> {
        let mut iter = accounts.iter();

        let whirlpools_config = next_account(&mut iter)?;
        let adaptive_fee_tier = next_account(&mut iter)?;
        let fee_authority = next_account(&mut iter)?;

        let remaining = iter.as_slice();

        Some(SetPresetAdaptiveFeeConstantsInstructionAccounts {
            whirlpools_config,
            adaptive_fee_tier,
            fee_authority,
            remaining: remaining.to_vec(),
        })
    }
}