const {
  time,
  loadFixture,
} = require('@nomicfoundation/hardhat-toolbox/network-helpers');
const { expect } = require('chai');
const { ethers } = require('hardhat');

describe('DAO', () => {
  // We define a fixture to reuse the same setup in every test.
  // We use loadFixture to run this setup once, snapshot that state,
  // and reset Hardhat Network to that snapshot in every test.
  async function deployDAO() {
    // Contracts are deployed using the first signer/account by default
    const [account1, account2] = await ethers.getSigners();

    const DAO = await ethers.getContractFactory('DAO');
    const dao = await DAO.deploy();

    return { dao, account1, account2 };
  }

  it('Should deploy', async () => {
    const { dao } = await loadFixture(deployDAO);
    expect(dao).to.exist;
    expect(await dao.totalValue()).to.equal(0);
  });

  describe('Validation Pool', () => {
    let dao;
    let account1;
    const POOL_DURATION = 3600; // 1 hour
    const fee = 100;

    beforeEach(async () => {
      const setup = await loadFixture(deployDAO);
      dao = setup.dao;
      account1 = setup.account1;
      const init = () => dao.initiateValidationPool(account1, POOL_DURATION, { value: fee });
      await expect(init()).to.emit(dao, 'ValidationPoolInitiated').withArgs(0);
      expect(await dao.validationPoolCount()).to.equal(1);
      expect(await dao.memberCount()).to.equal(0);
      expect(await dao.balanceOf(account1)).to.equal(0);
    });

    it('should not be able to initiate a validation pool without a fee', async () => {
      const setup = await loadFixture(deployDAO);
      const init = () => setup.dao.initiateValidationPool(setup.account1, POOL_DURATION);
      await expect(init()).to.be.revertedWith('Fee is required to initiate validation pool');
    });

    it('should be able to initiate a second validation pool', async () => {
      const init = () => dao.initiateValidationPool(account1, POOL_DURATION, { value: fee });
      await expect(init()).to.emit(dao, 'ValidationPoolInitiated').withArgs(1);
      expect(await dao.validationPoolCount()).to.equal(2);
    });

    it('Should be able to fetch pool instance', async () => {
      const pool = await dao.validationPools(0);
      expect(pool).to.exist;
      expect(pool.duration).to.equal(POOL_DURATION);
    });

    it('should not be able to evaluate outcome before duration has elapsed', async () => {
      await expect(dao.evaluateOutcome(0)).to.be.revertedWith('Pool end time has not yet arrived');
    });

    it('should be able to evaluate outcome after duration has elapsed', async () => {
      time.increase(POOL_DURATION + 1);
      await expect(dao.evaluateOutcome(0)).to.emit(dao, 'ValidationPoolResolved').withArgs(true);
      expect(await dao.memberCount()).to.equal(1);
      expect(await dao.balanceOf(account1)).to.equal(100);
    });

    it('should not be able to evaluate outcome more than once', async () => {
      time.increase(POOL_DURATION + 1);
      await expect(dao.evaluateOutcome(0)).to.emit(dao, 'ValidationPoolResolved').withArgs(true);
      await expect(dao.evaluateOutcome(0)).to.be.revertedWith('Pool is already resolved');
    });

    it('should be able to evaluate outcome of second validation pool', async () => {
      const init = () => dao.initiateValidationPool(account1, POOL_DURATION, { value: fee });
      await expect(init()).to.emit(dao, 'ValidationPoolInitiated').withArgs(1);
      expect(await dao.validationPoolCount()).to.equal(2);
      time.increase(POOL_DURATION + 1);
      await expect(dao.evaluateOutcome(0)).to.emit(dao, 'ValidationPoolResolved').withArgs(true);
      expect(await dao.balanceOf(account1)).to.equal(100);
      await expect(dao.evaluateOutcome(1)).to.emit(dao, 'ValidationPoolResolved').withArgs(true);
      expect(await dao.balanceOf(account1)).to.equal(200);
    });
  });
});