// Current time as bigint milliseconds
const now = BigInt(Date.now())

// From a specific date
const deadline = BigInt(new Date("2025-12-31T23:59:59Z").getTime())

// ADA amounts in time
const fiveMinutes = 5n * 60n * 1000n       // 300,000ms
const oneHour = 60n * 60n * 1000n           // 3,600,000ms
const oneDay = 24n * 60n * 60n * 1000n      // 86,400,000ms

// Future deadline
const now = BigInt(Date.now())
const expiresIn5Min = now + fiveMinutes
const expiresIn1Hour = now + oneHour

import { createClient } from "@evolution-sdk/evolution"

const client = createClient({
  network: "preprod",
  provider: { type: "blockfrost", baseUrl: "https://cardano-preprod.blockfrost.io/api/v0", projectId: process.env.BLOCKFROST_API_KEY! },
  wallet: { type: "seed", mnemonic: process.env.WALLET_MNEMONIC!, accountIndex: 0 }
})

const now = BigInt(Date.now())

// Transaction valid for the next 10 minutes
// const tx = await client.newTx()
//   .setValidity({ from: now, to: now + 600_000n })
//   ...