solana-agent-kit/src/langchain/orca/orca_single_sided_pool.ts

import { PublicKey } from "@solana/web3.js";
import { Decimal } from "decimal.js";
import { FEE_TIERS } from "../../tools/orca";
import { Tool } from "langchain/tools";
import { SolanaAgentKit } from "../../agent";

export class SolanaOrcaCreateSingleSideLiquidityPool extends Tool {
  name = "orca_create_single_sided_liquidity_pool";
  description = `Create a single-sided liquidity pool on Orca, the most efficient and capital-optimized CLMM platform on Solana.

  This function initializes a single-sided liquidity pool, ideal for community driven project, fair launches, and fundraising. Minimize price impact by setting a narrow price range.

  Inputs (JSON string):
  - depositTokenAmount: number, in units of the deposit token including decimals, e.g., 1000000000 (required).
  - depositTokenMint: string, mint address of the deposit token, e.g., "DepositTokenMintAddress" (required).
  - otherTokenMint: string, mint address of the other token, e.g., "OtherTokenMintAddress" (required).
  - initialPrice: number, initial price of the deposit token in terms of the other token, e.g., 0.001 (required).
  - maxPrice: number, maximum price at which liquidity is added, e.g., 5.0 (required).
  - feeTier: number, fee tier for the pool in bps. Options: 1, 2, 4, 5, 16, 30, 65, 100, 200 (required).`;

  constructor(private solanaKit: SolanaAgentKit) {
    super();
  }

  async _call(input: string): Promise<string> {
    try {
      const inputFormat = JSON.parse(input);
      const depositTokenAmount = inputFormat.depositTokenAmount;
      const depositTokenMint = new PublicKey(inputFormat.depositTokenMint);
      const otherTokenMint = new PublicKey(inputFormat.otherTokenMint);
      const initialPrice = new Decimal(inputFormat.initialPrice);
      const maxPrice = new Decimal(inputFormat.maxPrice);
      const feeTier = inputFormat.feeTier;

      if (!feeTier || !(feeTier in FEE_TIERS)) {
        throw new Error(
          `Invalid feeTier. Available options: ${Object.keys(FEE_TIERS).join(
            ", ",
          )}`,
        );
      }

      const txId = await this.solanaKit.orcaCreateSingleSidedLiquidityPool(
        depositTokenAmount,
        depositTokenMint,
        otherTokenMint,
        initialPrice,
        maxPrice,
        feeTier,
      );

      return JSON.stringify({
        status: "success",
        message: "Single-sided Whirlpool created successfully",
        transaction: txId,
      });
    } catch (error: any) {
      return JSON.stringify({
        status: "error",
        message: error.message,
        code: error.code || "UNKNOWN_ERROR",
      });
    }
  }
}