import { module, test } from 'qunit';
import { setupRenderingTest } from 'ember-qunit';
import hbs from 'htmlbars-inline-precompile';
import { componentA11yAudit } from 'nomad-ui/tests/helpers/a11y-audit';
import { create } from 'ember-cli-page-object';
import sinon from 'sinon';
import faker from 'nomad-ui/mirage/faker';
import topoVizPageObject from 'nomad-ui/tests/pages/components/topo-viz';

const TopoViz = create(topoVizPageObject());

const alloc = (nodeId, jobId, taskGroupName, memory, cpu, props = {}) => ({
  id: faker.random.uuid(),
  taskGroupName,
  isScheduled: true,
  allocatedResources: {
    cpu,
    memory,
  },
  belongsTo: type => ({
    id: () => (type === 'job' ? jobId : nodeId),
  }),
  ...props,
});

const node = (datacenter, id, memory, cpu) => ({
  datacenter,
  id,
  resources: { memory, cpu },
});

module('Integration | Component | TopoViz', function(hooks) {
  setupRenderingTest(hooks);

  const commonTemplate = hbs`
    <TopoViz
      @nodes={{this.nodes}}
      @allocations={{this.allocations}}
      @onAllocationSelect={{this.onAllocationSelect}}
      @onNodeSelect={{this.onNodeSelect}} />
  `;

  test('presents as a FlexMasonry of datacenters', async function(assert) {
    this.setProperties({
      nodes: [node('dc1', 'node0', 1000, 500), node('dc2', 'node1', 1000, 500)],

      allocations: [
        alloc('node0', 'job1', 'group', 100, 100),
        alloc('node0', 'job1', 'group', 100, 100),
        alloc('node1', 'job1', 'group', 100, 100),
      ],
    });

    await this.render(commonTemplate);

    assert.equal(TopoViz.datacenters.length, 2);
    assert.equal(TopoViz.datacenters[0].nodes.length, 1);
    assert.equal(TopoViz.datacenters[1].nodes.length, 1);
    assert.equal(TopoViz.datacenters[0].nodes[0].memoryRects.length, 2);
    assert.equal(TopoViz.datacenters[1].nodes[0].memoryRects.length, 1);

    await componentA11yAudit(this.element, assert);
  });

  test('clicking on a node in a deeply nested TopoViz::Node will toggle node selection and call @onNodeSelect', async function(assert) {
    this.setProperties({
      // TopoViz must be dense for node selection to be a feature
      nodes: Array(55)
        .fill(null)
        .map((_, index) => node('dc1', `node${index}`, 1000, 500)),
      allocations: [],
      onNodeSelect: sinon.spy(),
    });

    await this.render(commonTemplate);

    await TopoViz.datacenters[0].nodes[0].selectNode();
    assert.ok(this.onNodeSelect.calledOnce);
    assert.equal(this.onNodeSelect.getCall(0).args[0].node, this.nodes[0]);

    await TopoViz.datacenters[0].nodes[0].selectNode();
    assert.ok(this.onNodeSelect.calledTwice);
    assert.equal(this.onNodeSelect.getCall(1).args[0], null);
  });

  test('clicking on an allocation in a deeply nested TopoViz::Node will update the topology object with selections and call @onAllocationSelect and @onNodeSelect', async function(assert) {
    this.setProperties({
      nodes: [node('dc1', 'node0', 1000, 500)],
      allocations: [alloc('node0', 'job1', 'group', 100, 100)],
      onNodeSelect: sinon.spy(),
      onAllocationSelect: sinon.spy(),
    });

    await this.render(commonTemplate);

    await TopoViz.datacenters[0].nodes[0].memoryRects[0].select();
    assert.ok(this.onAllocationSelect.calledOnce);
    assert.equal(this.onAllocationSelect.getCall(0).args[0], this.allocations[0]);
    assert.ok(this.onNodeSelect.calledOnce);

    await TopoViz.datacenters[0].nodes[0].memoryRects[0].select();
    assert.ok(this.onAllocationSelect.calledTwice);
    assert.equal(this.onAllocationSelect.getCall(1).args[0], null);
    assert.ok(this.onNodeSelect.calledTwice);
    assert.ok(this.onNodeSelect.alwaysCalledWith(null));
  });

  test('clicking on an allocation in a deeply nested TopoViz::Node will associate sibling allocations with curves', async function(assert) {
    this.setProperties({
      nodes: [
        node('dc1', 'node0', 1000, 500),
        node('dc1', 'node1', 1000, 500),
        node('dc1', 'node2', 1000, 500),
        node('dc2', 'node3', 1000, 500),
        node('dc2', 'node4', 1000, 500),
        node('dc2', 'node5', 1000, 500),
      ],
      allocations: [
        alloc('node0', 'job1', 'group', 100, 100),
        alloc('node0', 'job1', 'group', 100, 100),
        alloc('node1', 'job1', 'group', 100, 100),
        alloc('node2', 'job1', 'group', 100, 100),
        alloc('node0', 'job1', 'groupTwo', 100, 100),
        alloc('node1', 'job2', 'group', 100, 100),
        alloc('node2', 'job2', 'groupTwo', 100, 100),
      ],
      onNodeSelect: sinon.spy(),
      onAllocationSelect: sinon.spy(),
    });

    const selectedAllocations = this.allocations.filter(
      alloc => alloc.belongsTo('job').id() === 'job1' && alloc.taskGroupName === 'group'
    );

    await this.render(commonTemplate);

    assert.notOk(TopoViz.allocationAssociationsArePresent);

    await TopoViz.datacenters[0].nodes[0].memoryRects[0].select();

    assert.ok(TopoViz.allocationAssociationsArePresent);
    assert.equal(TopoViz.allocationAssociations.length, selectedAllocations.length * 2);

    await TopoViz.datacenters[0].nodes[0].memoryRects[0].select();
    assert.notOk(TopoViz.allocationAssociationsArePresent);
  });

  test('when the count of sibling allocations is high enough relative to the node count, curves are not rendered', async function(assert) {
    this.setProperties({
      nodes: [node('dc1', 'node0', 1000, 500), node('dc1', 'node1', 1000, 500)],
      allocations: [
        alloc('node0', 'job1', 'group', 100, 100),
        alloc('node0', 'job1', 'group', 100, 100),
        alloc('node1', 'job1', 'group', 100, 100),
        alloc('node1', 'job1', 'group', 100, 100),
        alloc('node0', 'job1', 'groupTwo', 100, 100),
      ],
      onNodeSelect: sinon.spy(),
      onAllocationSelect: sinon.spy(),
    });

    await this.render(commonTemplate);
    assert.notOk(TopoViz.allocationAssociationsArePresent);

    await TopoViz.datacenters[0].nodes[0].memoryRects[0].select();
    assert.equal(TopoViz.allocationAssociations.length, 0);
  });
});