fix: token address prompt

src/tools/get_token_data.ts

@@ -1,14 +1,12 @@
 import { PublicKey } from "@solana/web3.js";
 import { JupiterTokenData } from "../types";
 
-export async function fetchTokenData(
-  name?: string,
-  symbol?: string,
-  mint?: PublicKey,
+export async function getTokenDataByAddress(
+  mint: PublicKey,
 ): Promise<JupiterTokenData | undefined> {
   try {
-    if (!mint && !symbol && !name) {
-      throw new Error("Either mint address, name or symbol is required");
+    if (!mint) {
+      throw new Error("Mint address is required");
     }
 
     const response = await fetch("https://tokens.jup.ag/tokens?tags=verified", {
@@ -20,19 +18,53 @@ export async function fetchTokenData(
 
     const data = (await response.json()) as JupiterTokenData[];
     const token = data.find((token: JupiterTokenData) => {
-      if (mint) {
-        return token.address === mint.toBase58();
-      }
-      if (symbol) {
-        return token.symbol === symbol;
-      }
-      if (name) {
-        return token.name === name;
-      }
-      return false;
+      return token.address === mint.toBase58();
     });
     return token;
   } catch (error: any) {
     throw new Error(`Error fetching token data: ${error.message}`);
   }
 }
+
+export async function getTokenAddressFromTicker(
+  ticker: string
+): Promise<string | null> {
+  try {
+    const response = await fetch(
+      `https://api.dexscreener.com/latest/dex/search?q=${ticker}`
+    );
+    const data = await response.json();
+
+    if (!data.pairs || data.pairs.length === 0) {
+      return null;
+    }
+
+    // Filter for Solana pairs only and sort by FDV
+    let solanaPairs = data.pairs
+      .filter((pair: any) => pair.chainId === "solana")
+      .sort((a: any, b: any) => (b.fdv || 0) - (a.fdv || 0));
+
+    console.log("solanaPairs", solanaPairs);
+
+    solanaPairs = solanaPairs.filter(
+      (pair: any) =>
+        pair.baseToken.symbol.toLowerCase() === ticker.toLowerCase()
+    );
+
+    // Return the address of the highest FDV Solana pair
+    return solanaPairs[0].baseToken.address;
+  } catch (error) {
+    console.error("Error fetching token address from DexScreener:", error);
+    return null;
+  }
+}
+
+export async function getTokenDataByTicker(
+  ticker: string
+): Promise<JupiterTokenData | undefined> {
+  const address = await getTokenAddressFromTicker(ticker);
+  if (!address) {
+    throw new Error(`Token address not found for ticker: ${ticker}`);
+  }
+  return getTokenDataByAddress(new PublicKey(address));
+}