/**
 * RPC — Direct JSON-RPC proxy to chain nodes.
 *
 * Run: npx tsx examples/11-rpc.ts
 */
import { Spectrum } from '@spectrumnodes/sdk';

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

interface BlockSummary {
  number: string;
  transactions: unknown[];
  gasUsed: string;
}

async function main() {
  // --- send (shorthand — returns just the result) ---
  const blockNumber = await spectrum.rpc.send<string>('ethereum', 'eth_blockNumber');
  console.log(`Block number: ${parseInt(blockNumber, 16)}`);

  const gasPrice = await spectrum.rpc.send<string>('ethereum', 'eth_gasPrice');
  console.log(`Gas price: ${parseInt(gasPrice, 16)} wei`);

  // --- send with params ---
  const balance = await spectrum.rpc.send<string>('ethereum', 'eth_getBalance', [
    '0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045',
    'latest',
  ]);
  console.log(`Vitalik balance: ${parseInt(balance, 16) / 1e18} ETH`);

  // --- request (full JSON-RPC response object) ---
  const blockResponse = await spectrum.rpc.request('ethereum', {
    method: 'eth_getBlockByNumber',
    params: ['latest', false],
  });
  if ('result' in blockResponse && blockResponse.result) {
    const block = blockResponse.result as BlockSummary;
    console.log(`\nLatest block: ${parseInt(block.number, 16)}`);
    console.log(`  Transactions: ${block.transactions.length}`);
    console.log(`  Gas used: ${parseInt(block.gasUsed, 16)}`);
  }

  // --- requestBatch (multiple calls in one round-trip) ---
  const results = await spectrum.rpc.requestBatch('ethereum', [
    { method: 'eth_blockNumber' },
    { method: 'eth_gasPrice' },
    { method: 'eth_chainId' },
    { method: 'net_version' },
  ]);
  console.log('\nBatch RPC results:');
  for (const r of results) {
    if ('result' in r) {
      console.log(`  id=${r.id}: ${r.result}`);
    }
  }

  // --- Advanced: trace a block (requires archive node) ---
  try {
    const trace = await spectrum.rpc.send('ethereum', 'trace_block', ['latest']);
    console.log(`\nBlock trace: ${JSON.stringify(trace).slice(0, 200)}...`);
  } catch {
    console.log('\ntrace_block not supported on this node (requires archive/trace node)');
  }

  // --- Works with any EVM chain ---
  const polyBlock = await spectrum.rpc.send<string>('polygon', 'eth_blockNumber');
  console.log(`\nPolygon block: ${parseInt(polyBlock, 16)}`);

  const arbBlock = await spectrum.rpc.send<string>('arbitrum', 'eth_blockNumber');
  console.log(`Arbitrum block: ${parseInt(arbBlock, 16)}`);
}

main().catch(console.error);