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import * as Denomination from 'voltaire-effect/Denomination'
import { Effect } from 'effect'
import * as Schema from 'effect/Schema'

// Decode with schemas
const wei = Schema.decodeSync(Denomination.WeiSchema)(1000000000000000000n)
const gwei = Schema.decodeSync(Denomination.GweiSchema)(30n)
const ether = Schema.decodeSync(Denomination.EtherSchema)(1n)

// Create with Effect
const w = Effect.runSync(Denomination.fromWei(1000000000000000000n))
const g = Effect.runSync(Denomination.fromGwei(30n))
const e = Effect.runSync(Denomination.fromEther(1n))

// Convert between units
Effect.runSync(Denomination.weiToGwei(w))   // Wei → Gwei
Effect.runSync(Denomination.weiToEther(w))  // Wei → Ether
Effect.runSync(Denomination.gweiToWei(g))   // Gwei → Wei
Effect.runSync(Denomination.gweiToEther(g)) // Gwei → Ether
Effect.runSync(Denomination.etherToWei(e))  // Ether → Wei
Effect.runSync(Denomination.etherToGwei(e)) // Ether → Gwei

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Types

import type { WeiType, GweiType, EtherType } from 'voltaire-effect/Denomination'
Branded types prevent mixing denominations at compile time.

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Gas Cost Example

const gasCost = Effect.gen(function* () {
  const gasPrice = yield* Denomination.fromGwei(30n)
  const priceWei = yield* Denomination.gweiToWei(gasPrice)
  const totalWei = yield* Denomination.fromWei(BigInt(priceWei) * 21000n)
  return yield* Denomination.weiToEther(totalWei)
})