pub fn handler(
    ctx: Context<ModifyLiquidity>,
    liquidity_amount: u128,
    token_min_a: u64,
    token_min_b: u64,
) -> Result<()> {
    
    ...

    let (delta_a, delta_b) = calculate_liquidity_token_deltas(
        ctx.accounts.whirlpool.tick_current_index,
        ctx.accounts.whirlpool.sqrt_price,
        &ctx.accounts.position,
        liquidity_delta,
    )?;

    if delta_a < token_min_a {
        return Err(ErrorCode::TokenMinSubceeded.into());
    } else if delta_b < token_min_b {
        return Err(ErrorCode::TokenMinSubceeded.into());
    }

    ...
}
        ...

        whirlpool.decreaseLiquidity{accounts: metasDecreaseLiquidity, seeds: [[pdaProgramSeed, pdaBump]]}(amount, 0, 0);

        ...
    if delta_a < token_min_a {
        return Err(ErrorCode::TokenMinSubceeded.into());
    } else if delta_b < token_min_b {
        return Err(ErrorCode::TokenMinSubceeded.into());
    }
    if delta_a < token_min_a { // @audit delta_a < 0 => false for all delta_a, so no error
        return Err(ErrorCode::TokenMinSubceeded.into());
    } else if delta_b < token_min_b { // @audit delta_b < 0 => false for al delta_b, so no error
        return Err(ErrorCode::TokenMinSubceeded.into());
    }

    // @audit if token_min_a = token_min_b = 0, then delta_a and delta_b can be ANY value, 
    // @audit even 0, which means total loss of funds is possible
-   function withdraw(uint64 amount) external {
+   function withdraw(uint64 amount, uint64 minA, uint64 minB) external {
        
        ...

-       whirlpool.decreaseLiquidity{accounts: metasDecreaseLiquidity, seeds: [[pdaProgramSeed, pdaBump]]}(amount, 0, 0);
+       whirlpool.decreaseLiquidity{accounts: metasDecreaseLiquidity, seeds: [[pdaProgramSeed, pdaBump]]}(amount, minA, minB);

        ...
}
