import {RippleAPI, RippleAPIBroadcast} from 'ripple-api';
import ledgerClosed from './fixtures/rippled/ledger-close.json';
import {createMockRippled} from './mock-rippled';
import {getFreePort} from './utils/net-utils';

function setupMockRippledConnection(testcase, port) {
  return new Promise((resolve, reject) => {
    testcase.mockRippled = createMockRippled(port);
    testcase._mockedServerPort = port;
    testcase.api = new RippleAPI({server: 'ws://localhost:' + port});
    testcase.api.connect().then(() => {
      testcase.api.once('ledger', () => resolve());
      testcase.api.connection._ws.emit('message', JSON.stringify(ledgerClosed));
    }).catch(reject);
  });
}

function setupMockRippledConnectionForBroadcast(testcase, ports) {
  return new Promise((resolve, reject) => {
    const servers = ports.map(port => 'ws://localhost:' + port);
    testcase.mocks = ports.map(port => createMockRippled(port));
    testcase.api = new RippleAPIBroadcast(servers);
    testcase.api.connect().then(() => {
      testcase.api.once('ledger', () => resolve());
      testcase.mocks[0].socket.send(JSON.stringify(ledgerClosed));
    }).catch(reject);
  });
}

function setup(this: any) {
  return getFreePort().then(port => {
    return setupMockRippledConnection(this, port);
  });
}

function setupBroadcast(this: any) {
  return Promise.all([getFreePort(), getFreePort()]).then(ports => {
    return setupMockRippledConnectionForBroadcast(this, ports);
  });
}

function teardown(this: any, done) {
  this.api.disconnect().then(() => {
    if (this.mockRippled !== undefined) {
      this.mockRippled.close();
    } else {
      this.mocks.forEach(mock => mock.close());
    }
    setImmediate(done);
  }).catch(done);
}

export default {
  setup: setup,
  teardown: teardown,
  setupBroadcast: setupBroadcast,
  createMockRippled: createMockRippled
};