const assert = require('assert');
const querystring = require('querystring');
const extend = require('extend');
const sinon = require('sinon');
const Client = require('../../lib/client');
const Embed = require('../../lib/api/embed');

describe('api/embed', function() {
  const client = new Client({});
  const embed = Embed(client);
  let stub_request;
  beforeEach(function() {
    // Setup `client.request` as a stub
    stub_request = sinon.stub(client, 'request');
  });
  afterEach(function() {
    // Reset the original `client.request`
    stub_request.restore();
    stub_request = null;
  });
  describe('#create', function() {
    it('should make a valid api call', function() {
      const graphJSON = {
        viz: 'timeseries',
        requests: [
          {
            q: 'system.cpu.idle{*}'
          }
        ]
      };
      const options = {
        timeframe: '1_hour',
        size: 'large',
        legend: 'yes',
        title: 'test graph embed'
      };

      // Make our api call
      embed.create(graphJSON, options);

      // Assert we properly called `client.request`
      assert(stub_request.calledOnce);
      const call_args = stub_request.getCall(0).args;
      // Method and endpoint are correct
      assert.equal(call_args[0], 'POST');
      assert.equal(call_args[1], '/graph/embed');

      // Properly formatted body and content-type
      const params = call_args[2];
      const expectedBody = {
        graph_json: JSON.stringify(graphJSON),
        timeframe: '1_hour',
        size: 'large',
        legend: 'yes',
        title: 'test graph embed'
      };
      assert.deepEqual(querystring.parse(params.body), expectedBody);
      assert(params.contentType, 'application/x-form-urlencoded');
    });

    it('should only require graph_json', function() {
      const graphJSON = {
        viz: 'timeseries',
        requests: [
          {
            q: 'system.cpu.idle{*}'
          }
        ]
      };

      // Make our api call
      embed.create(graphJSON);

      // Assert we properly called `client.request`
      assert(stub_request.calledOnce);
      const call_args = stub_request.getCall(0).args;

      // Properly formatted body
      const params = call_args[2];
      const expectedBody = {
        graph_json: JSON.stringify(graphJSON)
      };
      assert.deepEqual(querystring.parse(params.body), expectedBody);
    });
  });
});