// ISC, Copyright 2017 Jaco Greeff

const { Server } = require('mock-socket');

const TEST_WS_URL = 'ws://localhost:9955';

let server;

function mockWs (requests) {
  server = new Server(TEST_WS_URL);
  let requestCount = 0;

  server.on('message', (body) => {
    const request = requests[requestCount];
    const result = request.reply;
    const response = request.error
      ? {
        id: request.id,
        jsonrpc: '2.0',
        error: {
          code: request.error.code,
          message: request.error.message
        }
      }
      : {
        id: request.id,
        jsonrpc: '2.0',
        result: result.result
      };

    scope.body[request.method] = body;
    requestCount++;

    server.send(JSON.stringify(response));
  });

  const scope = {
    body: {},
    requests: 0,
    server,
    done: () => server.stop()
  };

  return scope;
}

module.exports = {
  TEST_WS_URL,
  mockWs
};