feat: updated slpx functions for manta

Author: zxstim

src/slpx.ts

@@ -1,5 +1,76 @@
 import { CONTRACT_ADDRESS_INFO } from "./constants";
-import { SLPX_V2_ABI } from "./abis";
+import { SLPX_V2_ABI, MANTA_SLPX_V1_ABI } from "./abis";
+import { parseUnits, encodePacked } from "viem";
+import { manta } from "viem/chains"
+
+//===============================================
+// Function exports
+//===============================================
+
+/**
+ * Estimates the fee for sending and calling a cross-chain transaction
+ * @param asset - The token contract address to send (e.g. 0xeeeEEEeEEeeeEeEeEEEeEeeeeEEEEeEEeEeeeeeE for native token, or token address)
+ * @param chainId - The destination chain ID (currently supports Manta Pacific)
+ * @param amount - The amount to send as a string (will be parsed with 18 decimals)
+ * @returns Contract call params for estimateSendAndCallFee function
+ * @throws Error if asset is not supported for the given chain
+ */
+export function getEstimateSendAndCallFeeParams(asset: string, chainId: number, amount: string) {
+  switch (chainId) {
+    // Handle Manta Pacific (SLPX v1)
+    case manta.id:
+      // throw error if not MANTA token
+      if (asset !== CONTRACT_ADDRESS_INFO.mantaPacific.manta?.address) {
+        throw new Error("Asset is not MANTA token");
+      }
+      // Otherwise return params
+      return {
+        address: CONTRACT_ADDRESS_INFO.mantaPacific.slpx?.address,
+        abi: MANTA_SLPX_V1_ABI,
+        functionName: "estimateSendAndCallFee",
+        args: [
+          asset, // MANTA token
+          parseUnits(amount, 18), // amount
+          0, // channel_id
+          4000000, // dstGasForCall
+          encodePacked(["uint16", "uint256"], [1, BigInt(4200000)]), // adapterParams
+        ],
+      }
+    default:
+      throw new Error("Chain ID is not valid or unsupported");
+  }
+}
+
+/**
+ * Returns the contract address info
+ * @param consoleLog - Whether to console log the contract address info
+ * @returns 
+ */
+export function getContractAddressInfo(consoleLog = false) {
+  if (consoleLog) {
+    console.log(CONTRACT_ADDRESS_INFO, 2, 2);
+  }
+  return CONTRACT_ADDRESS_INFO;
+}
+
+/**
+ * Returns the SLPX v2 ABI
+ * @param consoleLog - Whether to console log the SLPX v2 ABI
+ * @returns SLPX v2 ABI
+ */
+export function getSlpxAbi(consoleLog = false) {
+  if (consoleLog) {
+    console.log(SLPX_V2_ABI, 2, 2);
+  }
+  return SLPX_V2_ABI;
+}
+
+
+
+
+//===============================================
+// Class export
+//===============================================
 
 export class Slpx {
   private rspId: string;