// Copyright 2017-2019 @polkadot/api-derive authors & contributors
// This software may be modified and distributed under the terms
// of the Apache-2.0 license. See the LICENSE file for details.

import { BlockNumber } from '@polkadot/types';
import { DerivedStaking } from '../../src/types';
import { SubmittableResult } from '../../../api/src';

import ApiPromise from '@polkadot/api/promise/Api';
import testKeyring from '@polkadot/keyring/testing';
import { WsProvider } from '@polkadot/rpc-provider';

// const WS = 'ws://127.0.0.1:9944/';
const WS = 'wss://poc3-rpc.polkadot.io/';

describe.skip('derive e2e', () => {
  let api: ApiPromise;

  beforeAll(() => {
    jest.setTimeout(30000);
  });

  beforeEach(async (done) => {
    api = await ApiPromise.create(new WsProvider(WS));
    done();
  });

  it('returns correct results', async () => {
    // https://github.com/polkadot-js/api/issues/777
    const block1 = await api.derive.chain.bestNumber();
    await new Promise((resolve) => setTimeout(resolve, 15000));
    const block2 = await api.derive.chain.bestNumber();

    expect((block1 as BlockNumber).eq(block2)).toBe(false);
  });

  it('subscribes to newHead, retrieving the actual validator', (done) => {
    return api.derive.chain.subscribeNewHead(({ author }) => {
      console.log('author', author.toString());

      if (author) {
        done();
      }
    });
  });

  it('retrieves the fees (api.queryMulti)', (done) => {
    return api.derive.balances.fees((fees) => {
      console.error('fees', JSON.stringify(fees));

      done();
    });
  });

  it('retrieves the balances', (done) => {
    return api.derive.balances.all('5FLSigC9HGRKVhB9FiEo4Y3koPsNmBmLJbpXg2mp1hXcS59Y', (balance) => {
      console.error(JSON.stringify(balance));

      if (balance.freeBalance.gtn(1)) {
        done();
      }
    });
  });

  it('retrieves balances for a problematic account', (done) => {
    return api.derive.balances.all('5F7BJL6Z4m8RLtK7nXEqqpEqhBbd535Z3CZeYF6ccvaQAY6N', (balance) => {
      console.error(JSON.stringify(balance));

      if (balance.availableBalance.eqn(0)) {
        done();
      }
    });
  });

  it('retrieves all session info', (done) => {
    let count = 0;

    return api.derive.session.info((info) => {
      console.error(JSON.stringify(info));

      // 5 blocks only, then go our merry way
      if (++count === 5) {
        done();
      }
    });
  });

  it('retrieves all staking info (for controller)', (done) => {
    const accountId = '5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY';

    return api.derive.staking.info(accountId, (info) => {
      console.error(JSON.stringify(info));

      expect(info.accountId.eq(accountId)).toBe(true);
      expect(info.controllerId.eq(accountId)).toBe(true);
      expect(info.stashId.eq('5GNJqTPyNqANBkUVMN1LPPrxXnFouWXoe2wNSmmEoLctxiZY')).toBe(true);
      expect(info.stashId.eq(info.stakingLedger.stash)).toBe(true);

      done();
    });
  });

  it('retrieves all staking info (for stash)', (done) => {
    const accountId = '5GNJqTPyNqANBkUVMN1LPPrxXnFouWXoe2wNSmmEoLctxiZY';

    return api.derive.staking.info(accountId, (info: DerivedStaking) => {
      console.error(JSON.stringify(info));

      if (!info.stashId || !info.controllerId || !info.stakingLedger) {
        return done.fail(new Error('At leat one of info.stashId, info.controllerId or info.stakingLedger is undefined.'));
      }

      expect(info.accountId.eq(accountId)).toBe(true);
      expect(info.controllerId.eq('5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY')).toBe(true);
      expect(info.stashId.eq(accountId)).toBe(true);
      expect(info.stashId.eq(info.stakingLedger.stash)).toBe(true);

      done();
    });
  });

  describe('verifies derive.staking.unlocking',() => {
    const BOND_VALUE = 10;
    const UNBOND_VALUE = 1;
    const ALICE_STASH = '5GNJqTPyNqANBkUVMN1LPPrxXnFouWXoe2wNSmmEoLctxiZY';
    const ALICE = '5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY';
    const keyring = testKeyring();
    const aliceStashPair = keyring.getPair(ALICE_STASH);
    const alicePair = keyring.getPair(ALICE);

    it('bondsExtra funds for Alice Stash', (done) => {
      return api.tx.staking.bondExtra(BOND_VALUE)
        .signAndSend(aliceStashPair, (result: SubmittableResult) => {
          if (result.status.isFinalized) {

            done();
          }
        });
    });

    it('unbonds dots for Alice (from Alice Stash)', (done) => {
      return api.tx.staking.unbond(UNBOND_VALUE)
        .signAndSend(alicePair, (result: SubmittableResult) => {
          if (result.status.isFinalized) {

            done();
          }
        });
    });

    it('verifies that derive.staking.unlocking isn\'t empty/undefined', () => {
      return api.derive.session.info(ALICE_STASH, (info: DerivedStaking) => {
        expect(info.unlocking).toBeGreaterThan(0);
      });
    });
  });
});