use {
solana_farm_sdk::{
instruction::orca::OrcaUnstake,
program::{account, protocol::orca},
},
solana_program::{
account_info::AccountInfo,
entrypoint::ProgramResult,
instruction::{AccountMeta, Instruction},
msg,
program::invoke,
program_error::ProgramError,
},
};
pub fn unstake(accounts: &[AccountInfo], amount: u64) -> ProgramResult {
msg!("Processing AmmInstruction::Unstake");
msg!("amount {} ", amount);
#[allow(clippy::deprecated_cfg_attr)]
#[cfg_attr(rustfmt, rustfmt_skip)]
if let [
user_account,
user_info_account,
user_lp_token_account,
user_reward_token_account,
user_farm_lp_token_account,
farm_lp_token_mint,
farm_program_id,
base_token_vault,
reward_token_vault,
_spl_token_id,
farm_id,
farm_authority
] = accounts
{
if !orca::check_stake_program_id(farm_program_id.key) {
return Err(ProgramError::IncorrectProgramId);
}
if !account::check_token_account_owner(user_lp_token_account, user_account.key)?
|| !account::check_token_account_owner(user_reward_token_account, user_account.key)?
{
return Err(ProgramError::IllegalOwner);
}
let initial_reward_token_user_balance =
account::get_token_balance(user_reward_token_account)?;
let initial_lp_token_user_balance = account::get_token_balance(user_lp_token_account)?;
let initial_farm_token_user_balance =
account::get_token_balance(user_farm_lp_token_account)?;
let lp_amount = if amount > 0 {
amount
} else {
initial_farm_token_user_balance
};
let orca_accounts = vec![
AccountMeta::new_readonly(*user_account.key, true),
AccountMeta::new(*user_lp_token_account.key, false),
AccountMeta::new(*base_token_vault.key, false),
AccountMeta::new(*farm_lp_token_mint.key, false),
AccountMeta::new(*user_farm_lp_token_account.key, false),
AccountMeta::new_readonly(*user_account.key, true),
AccountMeta::new(*farm_id.key, false),
AccountMeta::new(*user_info_account.key, false),
AccountMeta::new(*reward_token_vault.key, false),
AccountMeta::new(*user_reward_token_account.key, false),
AccountMeta::new_readonly(*farm_authority.key, false),
AccountMeta::new_readonly(spl_token::id(), false),
];
let instruction = Instruction {
program_id: *farm_program_id.key,
accounts: orca_accounts,
data: OrcaUnstake { amount: lp_amount }.to_vec()?,
};
invoke(&instruction, accounts)?;
account::check_tokens_received(
user_lp_token_account,
initial_lp_token_user_balance,
lp_amount,
)?;
account::check_tokens_spent(
user_farm_lp_token_account,
initial_farm_token_user_balance,
lp_amount,
)?;
let _ = account::get_balance_increase(
user_reward_token_account,
initial_reward_token_user_balance,
)?;
} else {
return Err(ProgramError::NotEnoughAccountKeys);
}
msg!("AmmInstruction::Unstake complete");
Ok(())
}