stellar-baselib 0.5.7

use crate::hashing::HashingBehavior;
use std::error::Error;

use crate::xdr;
use crate::xdr::WriteXdr;

use crate::asset::Asset;
use crate::hashing::Sha256Hasher;

// Note: you'll need to bring in equivalent Rust libraries/types for xdr, Asset, and hashing.
use crate::asset::AssetBehavior;
const LIQUIDITY_POOL_FEE_V18: i32 = 30;

// Define a trait for Liquidity Pool behavior
pub trait LiquidityPoolBehavior {
    fn get_liquidity_pool_id(
        liquidity_pool_type: &str,
        liquidity_pool_parameters: xdr::LiquidityPoolParameters,
    ) -> Result<Vec<u8>, Box<dyn Error>>;
}

// Assuming you have a struct related to LiquidityPool. If not, you can implement this trait for a unit struct.
pub struct LiquidityPool;

impl LiquidityPoolBehavior for LiquidityPool {
    /// Computes the Pool ID for the given assets, fee, and pool type.
    /// Returns the raw Pool ID buffer.
    fn get_liquidity_pool_id(
        liquidity_pool_type: &str,
        liquidity_pool_parameters: xdr::LiquidityPoolParameters,
    ) -> Result<Vec<u8>, Box<dyn Error>> {
        if liquidity_pool_type != "constant_product" {
            return Err(Box::new(std::io::Error::new(
                std::io::ErrorKind::InvalidData,
                "liquidityPoolType is invalid",
            )));
        }
        let xdr::LiquidityPoolParameters::LiquidityPoolConstantProduct(liquidity_pool_parametes_x) =
            liquidity_pool_parameters.clone();

        if liquidity_pool_parametes_x.fee != LIQUIDITY_POOL_FEE_V18 {
            return Err(Box::new(std::io::Error::new(
                std::io::ErrorKind::InvalidData,
                "fee is invalid",
            )));
        }

        if Asset::compare(
            &Asset::from_operation(liquidity_pool_parametes_x.clone().asset_a).unwrap(),
            &Asset::from_operation(liquidity_pool_parametes_x.clone().asset_b).unwrap(),
        ) != -1
        {
            return Err(Box::new(std::io::Error::new(
                std::io::ErrorKind::InvalidData,
                "Assets are not in lexicographic order",
            )));
        }
        let va_1 = liquidity_pool_parametes_x.clone().asset_a;

        let lp_type_data =
            xdr::LiquidityPoolType::LiquidityPoolConstantProduct.to_xdr(xdr::Limits::none());
        let lp_params_data = xdr::LiquidityPoolConstantProductParameters {
            asset_a: liquidity_pool_parametes_x.clone().asset_a,
            asset_b: liquidity_pool_parametes_x.clone().asset_b,
            fee: liquidity_pool_parametes_x.fee,
        }
        .to_xdr(xdr::Limits::none());

        let mut payload = Vec::new();
        payload.extend(lp_type_data.unwrap());
        payload.extend(lp_params_data.unwrap());

        Ok(Sha256Hasher::hash(payload).to_vec())
    }
}