import * as BaseFeePerGas from './primitives/BaseFeePerGas/index.js';

// From block header
const baseFee = BaseFeePerGas.from(25000000000n); // 25 Gwei
console.log(BaseFeePerGas.toGwei(baseFee)); // 25n

// From Gwei
const fee = BaseFeePerGas.fromGwei(30n);
console.log(BaseFeePerGas.toWei(fee)); // 30000000000n

type BaseFeePerGasType = bigint & { readonly [brand]: "BaseFeePerGas" };

const fee1 = BaseFeePerGas.from(25000000000n);
const fee2 = BaseFeePerGas.from("0x5d21dba00");
const fee3 = BaseFeePerGas.from(25000000000);

const fee = BaseFeePerGas.fromGwei(25n); // 25000000000n Wei

const fee = BaseFeePerGas.fromWei(25000000000n);

const fee = BaseFeePerGas.from(25000000000n);
BaseFeePerGas.toGwei(fee); // 25n

const fee = BaseFeePerGas.from(25000000000n);
BaseFeePerGas.toWei(fee); // 25000000000n

BaseFeePerGas.toNumber(fee); // 25000000000

BaseFeePerGas.toBigInt(fee); // 25000000000n

const fee1 = BaseFeePerGas.from(25000000000n);
const fee2 = BaseFeePerGas.from(25000000000n);
BaseFeePerGas.equals(fee1, fee2); // true

const fee1 = BaseFeePerGas.from(25000000000n);
const fee2 = BaseFeePerGas.from(30000000000n);
BaseFeePerGas.compare(fee1, fee2); // -1

// Block over target (congested)
// Base fee increases by up to 12.5%
const currentBase = BaseFeePerGas.fromGwei(25n);
const nextBase = BaseFeePerGas.fromGwei(28n); // +12% increase

// Block under target (uncongested)
// Base fee decreases by up to 12.5%
const decreased = BaseFeePerGas.fromGwei(22n); // -12% decrease

nextBaseFee = currentBaseFee * (1 + 0.125 * (blockGasUsed - targetGas) / targetGas)

const baseFee = BaseFeePerGas.fromGwei(25n);
const gasUsed = 21000n; // Standard transfer
const burned = baseFee * gasUsed; // 525000000000000n Wei burned

// From JSON-RPC response
const block = await provider.getBlock('latest');
const baseFee = BaseFeePerGas.from(block.baseFeePerGas);

console.log(`Base fee: ${BaseFeePerGas.toGwei(baseFee)} Gwei`);

// Low congestion
const low = BaseFeePerGas.fromGwei(10n);

// Medium congestion
const medium = BaseFeePerGas.fromGwei(25n);

// High congestion
const high = BaseFeePerGas.fromGwei(100n);

// Extreme congestion (NFT drops, etc)
const extreme = BaseFeePerGas.fromGwei(500n);

const history: bigint[] = [];

// Track base fee over time
setInterval(async () => {
  const block = await provider.getBlock('latest');
  const baseFee = BaseFeePerGas.from(block.baseFeePerGas);
  history.push(baseFee);

  if (history.length > 10) history.shift();

  const avg = history.reduce((a, b) => a + b) / BigInt(history.length);
  console.log(`Avg base fee: ${BaseFeePerGas.toGwei(avg)} Gwei`);
}, 12000); // Every block