/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
import test from 'ava';
import Vue from 'vue';
import JobView from '../components/jobs/JobsView';

test.before('initialize', async t => {
  // load all plugins
  require('../plugins/event-bus');
});

test.serial('selectJobId', async t => {
  const vm = new Vue(JobView).$mount();
  let counter = 0;
  let dagEmitted = null;

  vm.$eventBus.$on('job-id-select', async (data) => {
    counter++;
  });

  vm.$eventBus.$on('dag', async (data) => {
    dagEmitted = data.dag;
  });

  vm._newJob('foo');
  vm._newJob('bar');
  vm.selectedJobId = 'foo';
  vm.jobs.foo.dag = 'lorem';

  await vm.selectJobId('bar');
  t.is(counter, 1, 'job-id-select event should be fired');
  t.is(vm.selectedJobId, 'bar', 'selectedJobId should be changed');
  t.is(dagEmitted, null, 'dag should not be changed');

  await vm.selectJobId('bar');
  t.is(counter, 1, 'job-id-select event should not be fired');
  t.is(vm.selectedJobId, 'bar', 'selectedJobId should not be changed');
  t.is(dagEmitted, null, 'dag should not be changed');

  await vm.selectJobId('foo');
  t.is(counter, 2, 'job-id-select event should be fired');
  t.is(vm.selectedJobId, 'foo', 'selectedJobId should be changed');
  t.is(dagEmitted, 'lorem', 'dag should be changed');

  vm.$eventBus.$off('job-id-select');
  vm.$eventBus.$off('dag');
  vm.$destroy();
});

test('deletejobId', async t => {
  const vm = new Vue(JobView).$mount();
  let deselectCounter = 0;
  let clearDagCounter = 0;

  vm.$eventBus.$on('job-id-deselect', async (data) => {
    deselectCounter++;
  });

  vm.$eventBus.$on('clear-dag', async (data) => {
    clearDagCounter++;
  });

  vm._newJob('foo');
  vm._newJob('bar');
  vm.selectedJobId = 'foo';

  vm.deleteJobId('foo');
  await vm.$nextTick();

  // should be deleted
  t.falsy('foo' in vm.jobs,
    'job `foo` should be deleted from `jobs` object');
  t.is(deselectCounter, 1, 'job-id-deselect event should be fired');
  t.is(clearDagCounter, 1, 'clear-dag event should be fired');
  t.is(vm.selectedJobId, '', 'selectedJobId should be cleared');

  vm.deleteJobId('bar');
  await vm.$nextTick();

  // if selectedJobId and target id is not same, do not emit clear events
  // also, make sure that job id is not changed
  t.falsy('bar' in vm.jobs,
    'job `bar` should be deleted from `jobs` object');
  t.is(deselectCounter, 1,
    'job-id-deselect event should not be fired when selectedJobId is differ from deleted job id');
  t.is(clearDagCounter, 1,
    'clear-dag event should not be fired when selectedJobId is differ from deleted job id');

  vm.$eventBus.$off('job-id-deselect');
  vm.$eventBus.$off('clear-dag');
  vm.$destroy();
});

test('processMetric', async t => {
  const vm = new Vue(JobView).$mount();
  let toBeCalledCounter = 0;
  vm.processIndividualMetric = async () => {
    toBeCalledCounter++;
  };

  // individual metric
  await vm.processMetric({metricType: 'foo'}, 'foo');
  t.is(toBeCalledCounter, 1, 'individual metric should be processed');

  // big chunk of initial metric
  const fakeMetric = {
    FooMetric: {
      FooID: {
        metricType: 'FooMetric',
        data: {}
      },
      BarID: {
        metricType: 'FooMetric',
        data: {}
      },
      BazID: {
        metricType: 'FooMetric',
        data: {}
      }
    },
    BarMetric: {
      LoremID: {
        metricType: 'BarMetric',
        data: {}
      },
      IpsumID: {
        metricType: 'BarMetric',
        data: {}
      }
    }
  };

  await vm.processMetric(fakeMetric, 'foo');
  t.is(toBeCalledCounter, 6, 'metric chunk should be properly processed');

  vm.$destroy();
});