mango-v4/programs/mango-v4/src/instructions/serum3_register_market.rs

83 lines
2.6 KiB
Rust

use anchor_lang::prelude::*;
use crate::error::MangoError;
use crate::serum3_cpi::{load_market_state, pubkey_from_u64_array};
use crate::state::*;
use crate::util::fill16_from_str;
#[derive(Accounts)]
pub struct Serum3RegisterMarket<'info> {
#[account(
mut,
has_one = admin,
)]
pub group: AccountLoader<'info, Group>,
pub admin: Signer<'info>,
// TODO: limit?
/// CHECK: Can register a market for any serum program
pub serum_program: UncheckedAccount<'info>,
/// CHECK: Can register any serum market
pub serum_market_external: UncheckedAccount<'info>,
#[account(
init,
// using the serum_market_external in the seed guards against registering the same market twice
seeds = [group.key().as_ref(), b"Serum3Market".as_ref(), serum_market_external.key().as_ref()],
bump,
payer = payer,
space = 8 + std::mem::size_of::<Serum3Market>(),
)]
pub serum_market: AccountLoader<'info, Serum3Market>,
#[account(has_one = group)]
pub quote_bank: AccountLoader<'info, Bank>,
#[account(has_one = group)]
pub base_bank: AccountLoader<'info, Bank>,
#[account(mut)]
pub payer: Signer<'info>,
pub system_program: Program<'info, System>,
}
// TODO: should this be "configure_serum_market", which allows reconfiguring?
pub fn serum3_register_market(
ctx: Context<Serum3RegisterMarket>,
market_index: Serum3MarketIndex,
name: String,
) -> Result<()> {
// TODO: must guard against accidentally using the same market_index twice!
let base_bank = ctx.accounts.base_bank.load()?;
let quote_bank = ctx.accounts.quote_bank.load()?;
let market_external = load_market_state(
&ctx.accounts.serum_market_external,
&ctx.accounts.serum_program.key(),
)?;
require!(
pubkey_from_u64_array(market_external.pc_mint) == quote_bank.mint,
MangoError::SomeError
);
require!(
pubkey_from_u64_array(market_external.coin_mint) == base_bank.mint,
MangoError::SomeError
);
let mut serum_market = ctx.accounts.serum_market.load_init()?;
*serum_market = Serum3Market {
name: fill16_from_str(name)?,
group: ctx.accounts.group.key(),
serum_program: ctx.accounts.serum_program.key(),
serum_market_external: ctx.accounts.serum_market_external.key(),
market_index,
base_token_index: base_bank.token_index,
quote_token_index: quote_bank.token_index,
bump: *ctx.bumps.get("serum_market").ok_or(MangoError::SomeError)?,
padding: Default::default(),
reserved: Default::default(),
};
Ok(())
}