const { BN, ether, balance } = require('@openzeppelin/test-helpers');
const { expect } = require('chai');

const RegistryContract = artifacts.require("Registry");
const PoolETHContract = artifacts.require("PoolETH");

const EthRateLogic = artifacts.require("EthRateLogic");


const masterAddr = "0xfCD22438AD6eD564a1C26151Df73F6B33B817B56"

// ABI

contract('ETH Pool', async accounts => {
    let ethAddr = "0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE";

    let accountA = accounts[0];
    let accountB = accounts[1];

    let ethPoolInstance;
    let registryInstance;

    let ethRateLogicInstance;
    before(async() => {
        registryInstance = await RegistryContract.deployed();
        ethPoolInstance = await PoolETHContract.deployed();

        ethRateLogicInstance = await EthRateLogic.deployed();
    })

  it('should send ether to the master address', async () => {
    // Send 1 eth to userAddress to have gas to send an ERC20 tx.
    await web3.eth.sendTransaction({
      from: accounts[0],
      to: masterAddr,
      value: ether('1')
    });
    const ethBalance = await balance.current(masterAddr);
    expect(new BN(ethBalance)).to.be.bignumber.least(new BN(ether('1')));
  });

  it('should add ETH pool in registry', async () => {
    await addPool(registryInstance, ethPoolInstance.address, ethAddr);
  });

  it('should enable ETH pool in registry', async () => {
      await enablePool(registryInstance, ethPoolInstance.address);
  });

  it('should update ETH Logic contract in registry', async () => {
      await updateRateLogic(registryInstance, ethPoolInstance.address, ethRateLogicInstance.address);
  });

  it('should deposit 5 ETH in ETH pool', async () => {
    var amountInWei = (ether("5")).toString()
    await ethPoolInstance.deposit(amountInWei, {from: accountA, value: amountInWei});
    const ethBalance = await web3.eth.getBalance(ethPoolInstance.address);
    expect(new BN(ethBalance)).to.be.bignumber.least(amountInWei);
    var totalSupply = await ethPoolInstance.totalSupply();
    expect(new BN(totalSupply)).to.be.bignumber.least(amountInWei);
  });

  it('should add profit 0.5 ETH and calculate exchange rate', async () => {
    var amountInWei = new BN(ether("0.5")).toString()
    await web3.eth.sendTransaction({
        from: accountA,
        to: ethRateLogicInstance.address,
        value: amountInWei
      });
    var exchangeRateInit =  await ethPoolInstance.exchangeRate()
    await ethPoolInstance.setExchangeRate({from: masterAddr});
    var exchangeRateFinal =  await ethPoolInstance.exchangeRate()
    expect(exchangeRateInit).to.not.equal(exchangeRateFinal);
  });

  it('should deposit 5 ETH in ETH pool(accountB)', async () => {
    var amountInWei = (ether("5")).toString()
    await ethPoolInstance.deposit(amountInWei, {from: accountB, value: amountInWei});
    const wrapETHBalance = await ethPoolInstance.balanceOf(accountB)
    expect(new BN(wrapETHBalance)).to.be.bignumber.least((ether("4")).toString());
  });

  it('should withdraw 0.5 ETH in ETH pool', async () => {
    var amountInWei = (ether("0.5")).toString()
    await ethPoolInstance.withdraw(amountInWei, accounts[2], {from: accountA});
    const ethBalance = await web3.eth.getBalance(accounts[2]);
    expect(new BN(ethBalance)).to.be.bignumber.least(amountInWei);
  });

  it('should withdraw total ETH in ETH pool', async () => {
    var amountInWei = (ether("1000")).toString()
    var checkAmt = (ether("4.5")).toString()
    await ethPoolInstance.withdraw(amountInWei, accounts[3], {from: accountA});
    const ethBalance = await web3.eth.getBalance(accounts[3]);
    expect(new BN(ethBalance)).to.be.bignumber.least(checkAmt);
  });
});


async function addPool(registryInstance, poolAddr, tokenAddr) {
  await registryInstance.addPool(tokenAddr, poolAddr, {from: masterAddr});
  
  var _poolAddr = await registryInstance.poolToken(tokenAddr);
  expect(_poolAddr).to.equal(poolAddr);
}

async function enablePool(registryInstance, poolAddr) {
 await registryInstance.updatePool(poolAddr, {from: masterAddr});
 
 var _isPool = await registryInstance.isPool(poolAddr);
 expect(_isPool).to.equal(true);
}

async function updateRateLogic(registryInstance, poolAddr, logicAddr) {
  await registryInstance.updatePoolLogic(poolAddr, logicAddr, {from: masterAddr});

  var _logicAddr = await registryInstance.poolLogic(poolAddr);
  expect(_logicAddr).to.equal(logicAddr);
}