/**
 * Yields — DeFi lending, vaults, staking rates.
 *
 * Run: npx tsx examples/04-yields.ts
 */
import { Spectrum } from '@spectrumnodes/sdk';

const spectrum = new Spectrum({ api: process.env.SPECTRUM_API! });

async function main() {
  // --- getLending ---
  const lending = await spectrum.yields.getLending({
    chain: 'ethereum',
    protocol: 'aave',
    pool: 'USDC',
  });
  console.log('Aave USDC lending rates:');
  for (const pool of lending.results) {
    console.log(`  ${pool.chain} — APY: ${pool.apy?.totalApy}%`);
  }

  // --- getVaults ---
  const vaults = await spectrum.yields.getVaults({
    chain: 'polygon',
    protocol: 'beefy',
    pool: 'USDC',
  });
  console.log(`\nBeefy vaults on Polygon: ${vaults.results.length} found`);
  for (const v of vaults.results.slice(0, 3)) {
    console.log(`  ${v.pool}: ${v.apy?.totalApy}% APY`);
  }

  // --- getStaking ---
  // Returns staking-type yields ranked by APY. `token` filters by underlying
  // token symbol (e.g. 'ETH', 'SOL'); `chain` filters client-side after fetch.
  const staking = await spectrum.yields.getStaking({ token: 'ETH' });
  console.log('\nETH staking yields:');
  for (const s of staking.results) {
    console.log(`  ${s.protocol} ${s.pool} on ${s.chain}: ${s.apy.totalApy}% APY`);
  }

  // --- getBest ---
  const best = await spectrum.yields.getBest({ token: 'USDC', limit: 5 });
  console.log('\nTop 5 USDC yields:');
  for (const b of best.results) {
    console.log(`  #${b.rank} ${b.protocol} (${b.chain}): ${b.apy.totalApy}% APY`);
  }

  // --- getBalance (yield-bearing token balance) ---
  const yieldBal = await spectrum.yields.getBalance({
    chain: 'ethereum',
    protocol: 'aave',
    pool: 'USDC',
    address: '0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045',
  });
  console.log(`\nAave USDC position: ${yieldBal.results.length} entries`);

  // --- getPrice (yield-bearing token price) ---
  const yieldPrice = await spectrum.yields.getPrice({
    chain: 'ethereum',
    protocol: 'aave',
    pool: 'USDC',
  });
  console.log(`Aave USDC price data: ${yieldPrice.results.length} entries`);

  // --- getPendleImpliedApy ---
  const pendle = await spectrum.yields.getPendleImpliedApy({
    chain: 'ethereum',
    pool: 'stETH',
    address: '0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045',
  });
  console.log(`Pendle implied APY: ${pendle.results.length} entries`);
}

main().catch(console.error);