/**
* Position finding utilities
*/
import { PublicKey } from "@solana/web3.js";
import { fetchPositions } from "../api.js";
import { getTokenInfo } from "../constants.js";
import { PositionSide } from "../types.js";
/**
* Find a position by asset and side
* @param walletAddress Wallet address to search positions for
* @param asset Asset symbol (SOL, ETH, BTC)
* @param side Position side (Long or Short)
* @returns Position public key
* @throws Error if position not found or multiple positions found
*/
export async function findPositionByAssetAndSide(
walletAddress: string,
asset: string,
side: PositionSide
): Promise<PublicKey> {
// Get all positions for the wallet
const positionsResponse = await fetchPositions(walletAddress);
// Get the mint address for the asset
const tokenInfo = getTokenInfo(asset);
const targetMint = tokenInfo.mint.toBase58();
// Filter positions by market mint and side
const matchingPositions = positionsResponse.dataList.filter((pos) => {
const positionSide = pos.side.toLowerCase() === "long" ? "Long" : "Short";
return pos.marketMint === targetMint && positionSide === side;
});
if (matchingPositions.length === 0) {
throw new Error(
`No ${side} position found for ${asset}. Please check your open positions.`
);
}
if (matchingPositions.length > 1) {
// This should not happen due to "one-way positions" design, but handle it anyway
throw new Error(
`Multiple ${side} positions found for ${asset}. This should not happen. ` +
`Position pubkeys: ${matchingPositions.map((p) => p.positionPubkey).join(", ")}`
);
}
return new PublicKey(matchingPositions[0].positionPubkey);
}
