import type { BrandedUint } from 'tevm/BrandedUint'

export type BrandedWei = BrandedUint & { readonly __brand: unique symbol }

import * as BrandedWei from 'tevm/BrandedWei'

const wei1 = BrandedWei(1_000_000_000n)              // 1 Gwei in Wei
const wei2 = BrandedWei(1_000_000_000_000_000_000n)  // 1 Ether in Wei
const wei3 = BrandedWei("1000000000000000000")       // String input
const wei4 = BrandedWei(42)                          // Number input

import * as BrandedGwei from 'tevm/BrandedGwei'
import * as BrandedWei from 'tevm/BrandedWei'

const gwei = BrandedGwei(50n)
const wei = BrandedWei.fromGwei(gwei)  // 50_000_000_000n Wei

import * as BrandedEther from 'tevm/BrandedEther'
import * as BrandedWei from 'tevm/BrandedWei'

const ether = BrandedEther(1n)
const wei = BrandedWei.fromEther(ether)  // 1_000_000_000_000_000_000n Wei

import * as BrandedWei from 'tevm/BrandedWei'

const wei = BrandedWei(50_000_000_000n)
const gwei = BrandedWei.toGwei(wei)  // BrandedGwei(50n)

// Fractional values truncate
const wei2 = BrandedWei(50_000_000_001n)
const gwei2 = BrandedWei.toGwei(wei2)  // BrandedGwei(50n) - truncates

import * as BrandedWei from 'tevm/BrandedWei'

const wei = BrandedWei(1_000_000_000_000_000_000n)
const ether = BrandedWei.toEther(wei)  // BrandedEther(1n)

// Fractional values truncate
const wei2 = BrandedWei(500_000_000_000_000_000n)  // 0.5 ETH
const ether2 = BrandedWei.toEther(wei2)  // BrandedEther(0n) - truncates

import * as BrandedWei from 'tevm/BrandedWei'
import * as BrandedUint from 'tevm/BrandedUint'

const wei = BrandedWei(1_000_000_000n)
const u256 = BrandedWei.toU256(wei)  // BrandedUint (no denomination)

// Can use with BrandedUint operations
const doubled = BrandedUint.times(u256, BrandedUint(2n))

import { WEI_PER_GWEI, WEI_PER_ETHER } from 'tevm/BrandedWei'

WEI_PER_GWEI   // 1_000_000_000n (10^9)
WEI_PER_ETHER  // 1_000_000_000_000_000_000n (10^18)

import * as BrandedWei from 'tevm/BrandedWei'
import * as BrandedGwei from 'tevm/BrandedGwei'
import * as BrandedUint from 'tevm/BrandedUint'

const gasPrice = BrandedGwei(50n)  // 50 Gwei
const gasUsed = BrandedUint(21_000n)

// Convert to Wei for calculation
const gasPriceWei = BrandedGwei.toWei(gasPrice)
const gasPriceU256 = BrandedWei.toU256(gasPriceWei)

const totalCost = BrandedUint.times(gasPriceU256, gasUsed)
const totalCostWei = BrandedWei(totalCost)

console.log(`Cost: ${totalCostWei} Wei`)

import * as BrandedWei from 'tevm/BrandedWei'
import * as BrandedEther from 'tevm/BrandedEther'

const valueEther = BrandedEther(1n)  // 1 ETH
const valueWei = BrandedEther.toWei(valueEther)

const tx = {
  to: "0x742d35Cc6634C0532925a3b844Bc9e7595f51e3e",
  value: valueWei,  // Type-safe BrandedWei
}

import * as BrandedWei from 'tevm/BrandedWei'
import * as BrandedGwei from 'tevm/BrandedGwei'
import * as BrandedEther from 'tevm/BrandedEther'

// Start with Ether
const ether = BrandedEther(1n)

// Convert to Wei
const wei = BrandedEther.toWei(ether)  // 1_000_000_000_000_000_000n

// Convert to Gwei
const gwei = BrandedWei.toGwei(wei)  // 1_000_000_000n

// Back to Ether
const etherAgain = BrandedGwei.toEther(gwei)  // 1n

import * as BrandedWei from 'tevm/BrandedWei'
import * as BrandedGwei from 'tevm/BrandedGwei'

const wei = BrandedWei(1_000_000_000n)
const gwei = BrandedGwei(1n)

// ✗ Type error - incompatible brands
BrandedWei.toGwei(gwei)

// ✓ Correct - explicit conversion
const weiFromGwei = BrandedGwei.toWei(gwei)
BrandedWei.toGwei(weiFromGwei)