import { Box } from '../../classes/box.js';
import { Scene } from '../../classes/scene.js';
import { Expert } from '../../classes/expert.js';
import { PostContent } from '../../classes/post-content.js';
import { delay } from '../../util.js';
import { DAO } from '../../classes/dao.js';

const POOL_DURATION_MS = 100;
const DEFAULT_DELAY_MS = 100;

let scene;
let experts;
let dao;

async function newExpert() {
  const index = experts.length;
  const name = `Expert${index + 1}`;
  const expert = await new Expert(dao, name).initialize();
  expert.addValue('rep', () => dao.reputation.valueOwnedBy(expert.reputationPublicKey));
  experts.push(expert);
  return expert;
}

async function setup() {
  const rootElement = document.getElementById('scene');
  const rootBox = new Box('rootBox', rootElement).flex();

  scene = (window.scene = new Scene('Validation Pool test', rootBox));
  scene.withSequenceDiagram();
  scene.withTable();

  dao = new DAO('DGF');

  experts = (window.experts = []);
  await newExpert();
  await newExpert();

  await delay(DEFAULT_DELAY_MS);
}

describe('Validation Pool', () => {
  before(async () => {
    await setup();
  });

  it('First expert can self-approve', async () => {
    scene.startSection();
    const { pool } = await experts[0].submitPostWithFee(new PostContent(), {
      fee: 7,
      duration: POOL_DURATION_MS,
      tokenLossRatio: 1,
    });
    // Attempting to evaluate winning conditions before the duration has expired
    // should result in an exception
    try {
      await pool.evaluateWinningConditions();
    } catch (e) {
      if (e.message.match(/Validation pool duration has not yet elapsed/)) {
        console.log(
          'Caught expected error: Validation pool duration has not yet elapsed',
        );
      } else {
        console.error('Unexpected error');
        throw e;
      }
    }
    await delay(POOL_DURATION_MS);
    await pool.evaluateWinningConditions(); // Vote passes
    await delay(DEFAULT_DELAY_MS);
    scene.endSection();
  });

  it('Failure example: second expert can not self-approve', async () => {
    scene.startSection();
    try {
      const { pool } = await experts[1].submitPostWithFee(new PostContent(), {
        fee: 1,
        duration: POOL_DURATION_MS,
        tokenLossRatio: 1,
      });
      await delay(POOL_DURATION_MS);
      await pool.evaluateWinningConditions(); // Quorum not met!
      await delay(DEFAULT_DELAY_MS);
    } catch (e) {
      e.message.should.match(/Quorum is not met/);
    }
    scene.endSection();
  });

  it('Second expert must be approved by first expert', async () => {
    scene.startSection();
    const { pool } = await experts[1].submitPostWithFee(new PostContent(), {
      fee: 1,
      duration: POOL_DURATION_MS,
      tokenLossRatio: 1,
    });
    await experts[0].stake(pool, {
      position: true,
      amount: 4,
      lockingTime: 0,
    });
    await delay(POOL_DURATION_MS);
    await pool.evaluateWinningConditions(); // Stake passes
    await delay(DEFAULT_DELAY_MS);
    scene.endSection();
  });
});