defituna-client 3.5.8

Rust client to interact with DefiTuna's on-chain program.
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use crate::accounts::{fetch_all_vault, fetch_tuna_lp_position};
use crate::types::PoolToken;
use crate::utils::get_create_ata_instructions;
use crate::{
    close_tuna_lp_position_fusion_instruction, decrease_tuna_lp_position_fusion_instruction, get_tuna_liquidity_position_address, get_vault_address,
    DecreaseTunaLpPositionArgs, HUNDRED_PERCENT,
};
use anyhow::{anyhow, Result};
use fusionamm_client::fetch_fusion_pool;
use solana_client::rpc_client::RpcClient;
use solana_instruction::Instruction;
use solana_pubkey::Pubkey;

#[derive(Default)]
pub struct CloseActiveTunaLpPositionArgs {
    pub swap_to_token: Option<PoolToken>,
    pub min_removed_amount_a: u64,
    pub min_removed_amount_b: u64,
    pub max_swap_slippage: u32,
}

pub fn close_active_tuna_lp_position_fusion_instructions(
    rpc: &RpcClient,
    authority: &Pubkey,
    position_mint: &Pubkey,
    args: CloseActiveTunaLpPositionArgs,
) -> Result<Vec<Instruction>> {
    let tuna_position = fetch_tuna_lp_position(&rpc, &get_tuna_liquidity_position_address(&position_mint).0)?;

    let fusion_pool = fetch_fusion_pool(rpc, &tuna_position.data.pool)?;
    let mint_a_address = fusion_pool.data.token_mint_a;
    let mint_b_address = fusion_pool.data.token_mint_b;

    let vaults = fetch_all_vault(&rpc, &[get_vault_address(&mint_a_address).0, get_vault_address(&mint_b_address).0])?;
    let (vault_a, vault_b) = (&vaults[0], &vaults[1]);

    let all_mint_addresses = vec![mint_a_address, mint_b_address];

    let mint_accounts = rpc.get_multiple_accounts(all_mint_addresses[0..all_mint_addresses.len()].into())?;
    let mint_a_account = mint_accounts[0].as_ref().ok_or(anyhow!("Token A mint account not found"))?;
    let mint_b_account = mint_accounts[1].as_ref().ok_or(anyhow!("Token B mint account not found"))?;

    let authority_ata_a_instructions = get_create_ata_instructions(&mint_a_address, authority, authority, &mint_a_account.owner, 0);
    let authority_ata_b_instructions = get_create_ata_instructions(&mint_b_address, authority, authority, &mint_b_account.owner, 0);

    let mut instructions = vec![];
    instructions.extend(authority_ata_a_instructions.create);
    instructions.extend(authority_ata_b_instructions.create);

    instructions.push(decrease_tuna_lp_position_fusion_instruction(
        authority,
        &tuna_position.data,
        &vault_a.data,
        &vault_b.data,
        &fusion_pool.data,
        &mint_a_account.owner,
        &mint_b_account.owner,
        DecreaseTunaLpPositionArgs {
            decrease_percent: HUNDRED_PERCENT,
            swap_to_token: args.swap_to_token,
            min_removed_amount_a: args.min_removed_amount_a,
            min_removed_amount_b: args.min_removed_amount_b,
            max_swap_slippage: args.max_swap_slippage,
        },
    ));

    instructions.extend(authority_ata_a_instructions.cleanup);
    instructions.extend(authority_ata_b_instructions.cleanup);

    instructions.push(close_tuna_lp_position_fusion_instruction(&authority, &tuna_position.data, &mint_a_account.owner, &mint_b_account.owner));

    Ok(instructions)
}