183 lines
6.9 KiB
Rust
183 lines
6.9 KiB
Rust
use anchor_lang::prelude::*;
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use fixed::types::I80F48;
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use crate::accounts_zerocopy::AccountInfoRef;
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use crate::error::*;
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use crate::state::*;
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use crate::util::fill_from_str;
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use crate::logs::{emit_stack, TokenMetaDataLogV2};
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pub const INDEX_START: I80F48 = I80F48::from_bits(1_000_000 * I80F48::ONE.to_bits());
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use crate::accounts_ix::*;
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#[allow(clippy::too_many_arguments)]
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pub fn token_register(
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ctx: Context<TokenRegister>,
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token_index: TokenIndex,
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name: String,
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oracle_config: OracleConfigParams,
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interest_rate_params: InterestRateParams,
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loan_fee_rate: f32,
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loan_origination_fee_rate: f32,
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maint_asset_weight: f32,
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init_asset_weight: f32,
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maint_liab_weight: f32,
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init_liab_weight: f32,
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liquidation_fee: f32,
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stable_price_delay_interval_seconds: u32,
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stable_price_delay_growth_limit: f32,
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stable_price_growth_limit: f32,
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min_vault_to_deposits_ratio: f64,
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net_borrow_limit_window_size_ts: u64,
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net_borrow_limit_per_window_quote: i64,
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borrow_weight_scale_start_quote: f64,
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deposit_weight_scale_start_quote: f64,
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reduce_only: u8,
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token_conditional_swap_taker_fee_rate: f32,
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token_conditional_swap_maker_fee_rate: f32,
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flash_loan_swap_fee_rate: f32,
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interest_curve_scaling: f32,
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interest_target_utilization: f32,
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group_insurance_fund: bool,
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deposit_limit: u64,
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zero_util_rate: f32,
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platform_liquidation_fee: f32,
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disable_asset_liquidation: bool,
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collateral_fee_per_day: f32,
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) -> Result<()> {
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// Require token 0 to be in the insurance token
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if token_index == INSURANCE_TOKEN_INDEX {
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require_keys_eq!(
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ctx.accounts.group.load()?.insurance_mint,
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ctx.accounts.mint.key()
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);
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}
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require_neq!(token_index, TokenIndex::MAX);
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let now_ts: u64 = Clock::get()?.unix_timestamp.try_into().unwrap();
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let mut bank = ctx.accounts.bank.load_init()?;
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*bank = Bank {
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group: ctx.accounts.group.key(),
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name: fill_from_str(&name)?,
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mint: ctx.accounts.mint.key(),
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vault: ctx.accounts.vault.key(),
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oracle: ctx.accounts.oracle.key(),
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deposit_index: INDEX_START,
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borrow_index: INDEX_START,
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indexed_deposits: I80F48::ZERO,
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indexed_borrows: I80F48::ZERO,
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index_last_updated: now_ts,
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bank_rate_last_updated: now_ts,
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// TODO: add a require! verifying relation between the parameters
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avg_utilization: I80F48::ZERO,
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adjustment_factor: I80F48::from_num(interest_rate_params.adjustment_factor),
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util0: I80F48::from_num(interest_rate_params.util0),
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rate0: I80F48::from_num(interest_rate_params.rate0),
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util1: I80F48::from_num(interest_rate_params.util1),
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rate1: I80F48::from_num(interest_rate_params.rate1),
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max_rate: I80F48::from_num(interest_rate_params.max_rate),
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collected_fees_native: I80F48::ZERO,
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loan_origination_fee_rate: I80F48::from_num(loan_origination_fee_rate),
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loan_fee_rate: I80F48::from_num(loan_fee_rate),
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maint_asset_weight: I80F48::from_num(maint_asset_weight),
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init_asset_weight: I80F48::from_num(init_asset_weight),
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maint_liab_weight: I80F48::from_num(maint_liab_weight),
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init_liab_weight: I80F48::from_num(init_liab_weight),
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liquidation_fee: I80F48::from_num(liquidation_fee),
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dust: I80F48::ZERO,
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flash_loan_token_account_initial: u64::MAX,
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flash_loan_approved_amount: 0,
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token_index,
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bump: *ctx.bumps.get("bank").ok_or(MangoError::SomeError)?,
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mint_decimals: ctx.accounts.mint.decimals,
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bank_num: 0,
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oracle_config: oracle_config.to_oracle_config(),
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stable_price_model: StablePriceModel {
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delay_interval_seconds: stable_price_delay_interval_seconds,
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delay_growth_limit: stable_price_delay_growth_limit,
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stable_growth_limit: stable_price_growth_limit,
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..StablePriceModel::default()
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},
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min_vault_to_deposits_ratio,
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net_borrow_limit_window_size_ts,
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last_net_borrows_window_start_ts: now_ts / net_borrow_limit_window_size_ts
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* net_borrow_limit_window_size_ts,
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net_borrow_limit_per_window_quote,
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net_borrows_in_window: 0,
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borrow_weight_scale_start_quote,
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deposit_weight_scale_start_quote,
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reduce_only,
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force_close: 0,
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disable_asset_liquidation: u8::from(disable_asset_liquidation),
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force_withdraw: 0,
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padding: Default::default(),
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fees_withdrawn: 0,
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token_conditional_swap_taker_fee_rate,
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token_conditional_swap_maker_fee_rate,
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flash_loan_swap_fee_rate: flash_loan_swap_fee_rate,
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interest_target_utilization,
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interest_curve_scaling: interest_curve_scaling.into(),
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potential_serum_tokens: 0,
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maint_weight_shift_start: 0,
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maint_weight_shift_end: 0,
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maint_weight_shift_duration_inv: I80F48::ZERO,
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maint_weight_shift_asset_target: I80F48::ZERO,
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maint_weight_shift_liab_target: I80F48::ZERO,
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fallback_oracle: ctx.accounts.fallback_oracle.key(),
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deposit_limit,
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zero_util_rate: I80F48::from_num(zero_util_rate),
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platform_liquidation_fee: I80F48::from_num(platform_liquidation_fee),
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collected_liquidation_fees: I80F48::ZERO,
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collected_collateral_fees: I80F48::ZERO,
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collateral_fee_per_day,
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reserved: [0; 1900],
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};
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let oracle_ref = &AccountInfoRef::borrow(ctx.accounts.oracle.as_ref())?;
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if let Ok(oracle_price) = bank.oracle_price(&OracleAccountInfos::from_reader(oracle_ref), None)
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{
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bank.stable_price_model
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.reset_to_price(oracle_price.to_num(), now_ts);
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} else {
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bank.stable_price_model.reset_on_nonzero_price = 1;
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}
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bank.verify()?;
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check_is_valid_fallback_oracle(&AccountInfoRef::borrow(
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ctx.accounts.fallback_oracle.as_ref(),
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)?)?;
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let mut mint_info = ctx.accounts.mint_info.load_init()?;
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*mint_info = MintInfo {
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group: ctx.accounts.group.key(),
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token_index,
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group_insurance_fund: if group_insurance_fund { 1 } else { 0 },
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padding1: Default::default(),
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mint: ctx.accounts.mint.key(),
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banks: Default::default(),
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vaults: Default::default(),
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oracle: ctx.accounts.oracle.key(),
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fallback_oracle: ctx.accounts.fallback_oracle.key(),
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registration_time: Clock::get()?.unix_timestamp.try_into().unwrap(),
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reserved: [0; 2528],
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};
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mint_info.banks[0] = ctx.accounts.bank.key();
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mint_info.vaults[0] = ctx.accounts.vault.key();
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emit_stack(TokenMetaDataLogV2 {
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mango_group: ctx.accounts.group.key(),
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mint: ctx.accounts.mint.key(),
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token_index,
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mint_decimals: ctx.accounts.mint.decimals,
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oracle: ctx.accounts.oracle.key(),
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fallback_oracle: ctx.accounts.fallback_oracle.key(),
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mint_info: ctx.accounts.mint_info.key(),
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});
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Ok(())
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}
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