@xspswap/smart-order-router
Version:
XSwap Protocol V3 Smart Order Router
59 lines • 6.99 kB
JavaScript
import { Protocol } from '@x-swap-protocol/router-sdk';
import { Percent } from '@x-swap-protocol/sdk-core';
import { Pair } from '@x-swap-protocol/v2-sdk';
import { FACTORY_ADDRESS, Pool, POOL_INIT_CODE_HASH, } from '@x-swap-protocol/v3-sdk';
import _ from 'lodash';
import { getFathomPoolAddress } from '../providers/v2-fathom/utils';
import { CurrencyAmount } from '.';
export const routeToString = (route) => {
const routeStr = [];
const tokens = route.protocol === Protocol.V3 || route.protocol === Protocol.UNI_V3
? // @ts-ignore
route.tokenPath
: // @ts-ignore
route.path;
const tokenPath = _.map(tokens, (token) => `${token.symbol}`);
const pools = route.protocol === Protocol.V2 || route.protocol === Protocol.FATHOM
? route.pairs
: // @ts-ignore
route.pools;
const poolFeePath = _.map(pools, (pool) => {
return `${pool instanceof Pool
? ` -- ${pool.fee / 10000}% [${Pool.getAddress(pool.token0, pool.token1, pool.fee, {
address: pool.factory ? pool.factory.address : FACTORY_ADDRESS,
initCode: pool.factory
? pool.factory.initCode
: POOL_INIT_CODE_HASH,
})}]`
: route.protocol === Protocol.FATHOM
? ` -- [${getFathomPoolAddress(pool.token0, pool.token1)}]`
: ` -- [${Pair.getAddress(pool.token0, pool.token1)}]`} --> `;
});
for (let i = 0; i < tokenPath.length; i++) {
routeStr.push(tokenPath[i]);
if (i < poolFeePath.length) {
routeStr.push(poolFeePath[i]);
}
}
return routeStr.join('');
};
export const routeAmountsToString = (routeAmounts) => {
const total = _.reduce(routeAmounts, (total, cur) => {
return total.add(cur.amount);
}, CurrencyAmount.fromRawAmount(routeAmounts[0].amount.currency, 0));
const routeStrings = _.map(routeAmounts, ({ protocol, route, amount }) => {
const portion = amount.divide(total);
const percent = new Percent(portion.numerator, portion.denominator);
/// @dev special case for MIXED routes we want to show user friendly V2+V3 instead
return `[${protocol == Protocol.MIXED ? 'V2 + V3' : protocol}] ${percent.toFixed(2)}% = ${routeToString(route)}`;
});
return _.join(routeStrings, ', ');
};
export const routeAmountToString = (routeAmount) => {
const { route, amount } = routeAmount;
return `${amount.toExact()} = ${routeToString(route)}`;
};
export const poolToString = (p) => {
return `${p.token0.symbol}/${p.token1.symbol}${p instanceof Pool ? `/${p.fee / 10000}%` : ``}`;
};
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