import Flash from '../src/plugin';
import {createTimeRange} from 'video.js';
import document from 'global/document';
import window from 'global/window';
import sinon from 'sinon';
import QUnit from 'qunit';

// fake out the <object> interaction but leave all the other logic intact
class MockFlash extends Flash {
  constructor() {
    super({});
  }
}

QUnit.module('Flash');

QUnit.test('Flash.canPlaySource', function(assert) {
  const canPlaySource = Flash.canPlaySource;

  // Supported
  assert.ok(
    canPlaySource({type: 'video/mp4; codecs=avc1.42E01E,mp4a.40.2' }, {}),
    'codecs supported'
  );
  assert.ok(canPlaySource({type: 'video/mp4' }, {}), 'video/mp4 supported');
  assert.ok(canPlaySource({type: 'video/x-flv' }, {}), 'video/x-flv supported');
  assert.ok(canPlaySource({type: 'video/flv' }, {}), 'video/flv supported');
  assert.ok(canPlaySource({type: 'video/m4v' }, {}), 'video/m4v supported');
  assert.ok(canPlaySource({type: 'VIDEO/FLV' }, {}), 'capitalized mime type');

  // Not supported
  assert.ok(!canPlaySource({ type: 'video/webm; codecs="vp8, vorbis"' }, {}));
  assert.ok(!canPlaySource({ type: 'video/webm' }, {}));
});

QUnit.test('currentTime', function(assert) {
  const getCurrentTime = Flash.prototype.currentTime;
  const setCurrentTime = Flash.prototype.setCurrentTime;
  let seekingCount = 0;
  let seeking = false;
  let setPropVal;
  let getPropVal;
  let result;

  // Mock out a Flash instance to avoid creating the swf object
  const mockFlash = {
    el_: {
      /* eslint-disable camelcase */
      vjs_setProperty(prop, val) {
        setPropVal = val;
      },
      vjs_getProperty() {
        return getPropVal;
      }
      /* eslint-enable camelcase */
    },
    seekable() {
      return createTimeRange(5, 1000);
    },
    trigger(event) {
      if (event === 'seeking') {
        seekingCount++;
      }
    },
    seeking() {
      return seeking;
    }
  };

  // Test the currentTime getter
  getPropVal = 3;
  result = getCurrentTime.call(mockFlash);
  assert.equal(result, 3, 'currentTime is retreived from the swf element');

  // Test the currentTime setter
  setCurrentTime.call(mockFlash, 10);
  assert.equal(setPropVal, 10, 'currentTime is set on the swf element');
  assert.equal(seekingCount, 1, 'triggered seeking');

  // Test current time while seeking
  setCurrentTime.call(mockFlash, 20);
  seeking = true;
  result = getCurrentTime.call(mockFlash);
  assert.equal(
    result,
    20,
    'currentTime is retrieved from the lastSeekTarget while seeking'
  );
  assert.notEqual(
    result,
    getPropVal,
    'currentTime is not retrieved from the element while seeking'
  );
  assert.equal(seekingCount, 2, 'triggered seeking');

  // clamp seeks to seekable
  setCurrentTime.call(mockFlash, 1001);
  result = getCurrentTime.call(mockFlash);
  assert.equal(result, mockFlash.seekable().end(0), 'clamped to the seekable end');
  assert.equal(seekingCount, 3, 'triggered seeking');

  setCurrentTime.call(mockFlash, 1);
  result = getCurrentTime.call(mockFlash);
  assert.equal(result, mockFlash.seekable().start(0), 'clamped to the seekable start');
  assert.equal(seekingCount, 4, 'triggered seeking');
});

QUnit.test('dispose removes the object element even before ready fires', function(assert) {
  // This test appears to test bad functionaly that was fixed
  // so it's debateable whether or not it's useful
  const dispose = Flash.prototype.dispose;
  const mockFlash = new MockFlash();
  const noop = function() {};

  // Mock required functions for dispose
  mockFlash.off = noop;
  mockFlash.trigger = noop;
  mockFlash.el_ = {};

  dispose.call(mockFlash);
  assert.strictEqual(mockFlash.el_, null, 'swf el is nulled');
});

QUnit.test('ready triggering before and after disposing the tech', function(assert) {
  const checkReady = sinon.stub(Flash, 'checkReady');
  const fixtureDiv = document.getElementById('qunit-fixture');
  const playerDiv = document.createElement('div');
  const techEl = document.createElement('div');

  techEl.id = 'foo1234';
  playerDiv.appendChild(techEl);
  fixtureDiv.appendChild(playerDiv);

  // Mock the swf element
  techEl.tech = {
    el() {
      return techEl;
    }
  };

  playerDiv.player = {
    tech: techEl.tech
  };

  Flash.onReady(techEl.id);
  assert.ok(checkReady.called, 'checkReady should be called before the tech is disposed');

  // remove the tech el from the player div to simulate being disposed
  playerDiv.removeChild(techEl);
  Flash.onReady(techEl.id);
  assert.ok(
    !checkReady.calledTwice,
    'checkReady should not be called after the tech is disposed'
  );

  Flash.checkReady.restore();
});

QUnit.test('should have the source handler interface', function(assert) {
  assert.ok(Flash.registerSourceHandler, 'has the registerSourceHandler function');
});

QUnit.test('canPlayType should select the correct types to play', function(assert) {
  const canPlayType = Flash.nativeSourceHandler.canPlayType;

  assert.equal(canPlayType('video/flv'), 'maybe', 'should be able to play FLV files');
  assert.equal(canPlayType('video/x-flv'), 'maybe', 'should be able to play x-FLV files');
  assert.equal(canPlayType('video/mp4'), 'maybe', 'should be able to play MP4 files');
  assert.equal(canPlayType('video/m4v'), 'maybe', 'should be able to play M4V files');
  assert.equal(
    canPlayType('video/ogg'),
    '',
    'should return empty string if it can not play the video'
  );
});

QUnit.test('canHandleSource should be able to work with src objects without a type', function(assert) {
  const canHandleSource = Flash.nativeSourceHandler.canHandleSource;

  assert.equal(
    'maybe',
    canHandleSource({ src: 'test.video.mp4' }, {}),
    'should guess that it is a mp4 video'
  );
  assert.equal(
    'maybe',
    canHandleSource({ src: 'test.video.m4v' }, {}),
    'should guess that it is a m4v video'
  );
  assert.equal(
    'maybe',
    canHandleSource({ src: 'test.video.flv' }, {}),
    'should guess that it is a flash video'
  );
  assert.equal(
    '',
    canHandleSource({ src: 'test.video.wgg' }, {}),
    'should return empty string if it can not play the video'
  );
});

QUnit.test('seekable', function(assert) {
  const seekable = Flash.prototype.seekable;
  let result;
  const mockFlash = {
    duration() {
      return this.duration_;
    }
  };

  // Test a normal duration
  mockFlash.duration_ = 23;
  result = seekable.call(mockFlash);
  assert.equal(result.length, 1, 'seekable is non-empty');
  assert.equal(result.start(0), 0, 'starts at zero');
  assert.equal(result.end(0), mockFlash.duration_, 'ends at the duration');

  // Test a zero duration
  mockFlash.duration_ = 0;
  result = seekable.call(mockFlash);
  assert.equal(
    result.length, mockFlash.duration_,
    'seekable is empty with a zero duration'
  );
});

QUnit.test('play after ended seeks to the beginning', function(assert) {
  let plays = 0;
  const seeks = [];

  Flash.prototype.play.call({
    el_: {
      /* eslint-disable camelcase */
      vjs_play() {
        plays++;
      }
      /* eslint-enable camelcase */
    },
    ended() {
      return true;
    },
    setCurrentTime(time) {
      seeks.push(time);
    }
  });

  assert.equal(plays, 1, 'called play on the SWF');
  assert.equal(seeks.length, 1, 'seeked on play');
  assert.equal(seeks[0], 0, 'seeked to the beginning');
});

QUnit.test('duration returns NaN, Infinity or duration according to the HTML standard', function(assert) {
  const duration = Flash.prototype.duration;
  let mockedDuration = -1;
  let mockedReadyState = 0;
  let result;
  const mockFlash = {
    el_: {
      /* eslint-disable camelcase */
      vjs_getProperty() {
        return mockedDuration;
      }
      /* eslint-enable camelcase */
    },
    readyState() {
      return mockedReadyState;
    }
  };

  result = duration.call(mockFlash);
  assert.ok(Number.isNaN(result), 'duration returns NaN when readyState equals 0');

  mockedReadyState = 1;
  result = duration.call(mockFlash);
  assert.ok(
    !Number.isFinite(result),
    'duration returns Infinity when duration property is less then 0'
  );

  mockedDuration = 1;
  result = duration.call(mockFlash);
  assert.equal(
    result,
    1,
    'duration returns duration property when readyState' +
              ' and duration property are both higher than 0'
  );
});

QUnit.test('getVideoPlaybackQuality API exists', function(assert) {
  const propertyCalls = [];
  const videoPlaybackQuality = { test: 'test' };
  const mockFlash = {
    el_: {
      /* eslint-disable camelcase */
      vjs_getProperty(attr) {
        propertyCalls.push(attr);
        return videoPlaybackQuality;
      }
      /* eslint-enable camelcase */
    }
  };

  assert.deepEqual(
    Flash.prototype.getVideoPlaybackQuality.call(mockFlash),
    videoPlaybackQuality,
    'called to get property from flash'
  );
  assert.equal(propertyCalls.length, 1, 'only one property call');
  assert.equal(
    propertyCalls[0],
    'getVideoPlaybackQuality',
    'called for getVideoPlaybackQuality'
  );
});

QUnit.test('getVideoPlaybackQuality uses best available creationTime', function(assert) {
  const origPerformance = window.performance;
  const origDate = window.Date;
  const videoPlaybackQuality = {};
  const mockFlash = {
    el_: {
      /* eslint-disable camelcase */
      vjs_getProperty(attr) {
        return videoPlaybackQuality;
      }
      /* eslint-enable camelcase */
    }
  };

  window.performance = void 0;
  assert.notOk(
    Flash.prototype.getVideoPlaybackQuality.call(mockFlash).creationTime,
    'no creationTime when no performance API available'
  );

  window.performance = {
    timing: {}
  };
  assert.notOk(
    Flash.prototype.getVideoPlaybackQuality.call(mockFlash).creationTime,
    'no creationTime when performance API insufficient'
  );

  window.performance = {
    now: () => 4
  };
  assert.equal(
    Flash.prototype.getVideoPlaybackQuality.call(mockFlash).creationTime,
    4,
    'creationTime is performance.now when available'
  );

  window.Date = {
    now: () => 10
  };
  window.performance = {
    timing: {
      navigationStart: 3
    }
  };
  assert.equal(
    Flash.prototype.getVideoPlaybackQuality.call(mockFlash).creationTime,
    7,
    'creationTime uses Date.now() - navigationStart when available'
  );

  window.performance.now = () => 4;
  assert.equal(
    Flash.prototype.getVideoPlaybackQuality.call(mockFlash).creationTime,
    4,
    'creationTime prioritizes performance.now when available'
  );

  window.Date = origDate;
  window.performance = origPerformance;
});