import hre from "hardhat"
import { expect } from "chai"
import { setupAccounts } from "../accounts"

const gasLimit = 12000000

function buildTest(
  contractName: string,
  func: string,
  resFunc: string,
  params: bigint[],
  expectedResult: bigint
) {
  it(`${contractName}.${func}(${params}) should return ${expectedResult}`, async function () {
    const [owner] = await setupAccounts()
    const provider = owner.provider!
    const network = await provider.getNetwork()

    const factory = await hre.ethers.getContractFactory(contractName, owner as any)
    const contract = await factory.deploy({ gasLimit })
    await contract.waitForDeployment()

    const tx = await contract.getFunction(func)(...params, { gasLimit })
    const receipt = await tx.wait()
    
    const result = await contract.getFunction(resFunc)()
    expect(result).to.equal(expectedResult)
    
    const txFromChain = await provider.getTransactionReceipt(receipt.hash)
    expect(txFromChain).to.not.be.null
    expect(txFromChain?.status).to.equal(1)
  })
}

const params = [
  BigInt("1000000000000000000"),  // 1e18 (fits in uint128)
  BigInt("500000000000000000")    // 0.5e18
]
const [a, b] = params

describe("Precompile 128-bit", function () {
  buildTest("Arithmetic128TestsContract", "addTest", "getAddResult", params, a + b)
  buildTest("Arithmetic128TestsContract", "checkedAddTest", "getAddResult", params, a + b)
  buildTest("Arithmetic128TestsContract", "subTest", "getSubResult", params, a - b)
  buildTest("Arithmetic128TestsContract", "checkedSubTest", "getSubResult", params, a - b)
  buildTest("Arithmetic128TestsContract", "mulTest", "getMulResult", params, a * b)
  buildTest("Arithmetic128TestsContract", "checkedMulTest", "getMulResult", params, a * b)
  buildTest("Arithmetic128TestsContract", "divTest", "getDivResult", params, a / b)
  buildTest("Arithmetic128TestsContract", "remTest", "getRemResult", params, a % b)
})