/**
* Meteora DLMM Pool Creation
*/
import {
Connection,
PublicKey,
VersionedTransaction,
} from '@solana/web3.js';
import type { CreateMeteoraPoolParams, CreatePoolResult } from '../types.js';
import { TokenLaunchError, TokenLaunchErrorCode, CONSTANTS } from '../types.js';
import { logger } from '../utils/logger.js';
const METEORA_DLMM_PROGRAM = new PublicKey(CONSTANTS.METEORA_DLMM_PROGRAM);
/**
* Derive Meteora DLMM pool address
*/
export function deriveDlmmPoolAddress(
tokenX: PublicKey,
tokenY: PublicKey,
binStep: number
): PublicKey {
const [sortedX, sortedY] = tokenX.toBuffer().compare(tokenY.toBuffer()) < 0
? [tokenX, tokenY]
: [tokenY, tokenX];
const [poolAddress] = PublicKey.findProgramAddressSync(
[
sortedX.toBuffer(),
sortedY.toBuffer(),
Buffer.from(new Uint16Array([binStep]).buffer),
],
METEORA_DLMM_PROGRAM
);
return poolAddress;
}
/**
* Get DLMM pool info
*/
export async function getDlmmPoolInfo(
connection: Connection,
poolId: string
): Promise<{
tokenX: string;
tokenY: string;
binStep: number;
activeId: number;
reserveX: string;
reserveY: string;
} | null> {
try {
const poolPubkey = new PublicKey(poolId);
const accountInfo = await connection.getAccountInfo(poolPubkey);
if (!accountInfo) {
return null;
}
// Parse DLMM pool data
// This is simplified - actual parsing requires Meteora IDL
const _data = accountInfo.data;
// Placeholder parsing - actual implementation requires Meteora IDL
return null;
} catch (error) {
logger.error('Failed to get DLMM pool info', { poolId, error });
return null;
}
}
/**
* Find DLMM pools for token pair
*/
export async function findDlmmPools(
tokenX: string,
tokenY: string
): Promise<Array<{ poolId: string; binStep: number; liquidity: string }>> {
try {
// Meteora API endpoint
const response = await fetch(
`https://dlmm-api.meteora.ag/pair/all_by_groups?token_x=${tokenX}&token_y=${tokenY}`
);
if (!response.ok) {
return [];
}
const data = await response.json() as { groups?: Array<{ pairs?: Array<{ address: string; bin_step: number; liquidity: string }> }> };
return data.groups?.flatMap((group) =>
group.pairs?.map((pair) => ({
poolId: pair.address,
binStep: pair.bin_step,
liquidity: pair.liquidity,
})) || []
) || [];
} catch (error) {
logger.error('Failed to find DLMM pools', { tokenX, tokenY, error });
return [];
}
}
/**
* Create Meteora DLMM pool
* Note: This requires Meteora SDK for full implementation
*/
export async function createMeteoraPool(
_connection: Connection,
params: CreateMeteoraPoolParams,
_signTransaction: (tx: VersionedTransaction) => Promise<VersionedTransaction>
): Promise<CreatePoolResult> {
logger.info('Creating Meteora DLMM pool', {
tokenMint: params.tokenMint,
quoteMint: params.quoteMint,
binStep: params.binStep,
});
// Full implementation requires Meteora SDK
throw new TokenLaunchError(
TokenLaunchErrorCode.TRANSACTION_FAILED,
'Meteora DLMM pool creation requires Meteora SDK',
{ hint: 'npm install @meteora-ag/dlmm' }
);
}
/**
* Calculate price from bin ID
*/
export function binIdToPrice(binId: number, binStep: number): number {
const basisPointDivisor = 10000;
return Math.pow(1 + binStep / basisPointDivisor, binId);
}
/**
* Calculate bin ID from price
*/
export function priceToBinId(price: number, binStep: number): number {
const basisPointDivisor = 10000;
return Math.floor(
Math.log(price) / Math.log(1 + binStep / basisPointDivisor)
);
}
