"use strict";

var wd = require('wd'),

Q = require('q');

exports.swipe = function (opts) {

var action = new wd.TouchAction();

action

.press({x: opts.startX, y: opts.startY})

.wait(opts.duration)

.moveTo({x: opts.endX, y: opts.endY})

.release();

return this.performTouchAction(action);

};

exports.pinch = function (el) {

return Q.all([

el.getSize(),

el.getLocation(),

]).then(function (res) {

var size = res[0];

var loc = res[1];

var center = {

x: loc.x + size.width / 2,

y: loc.y + size.height / 2

};

var a1 = new wd.TouchAction(this);

a1.press({el: el, x: center.x, y: center.y - 100}).moveTo({el: el}).release();

var a2 = new wd.TouchAction(this);

a2.press({el: el, x: center.x, y: center.y + 100}).moveTo({el: el}).release();

var m = new wd.MultiAction(this);

m.add(a1, a2);

return m.perform();

}.bind(this));

};

exports.zoom = function (el) {

return Q.all([

this.getWindowSize(),

this.getLocation(el),

]).then(function (res) {

var size = res[0];

var loc = res[1];

var center = {

x: loc.x + size.width / 2,

y: loc.y + size.height / 2

};

var a1 = new wd.TouchAction(this);

a1.press({el: el}).moveTo({el: el, x: center.x, y: center.y - 100}).release();

var a2 = new wd.TouchAction(this);

a2.press({el: el}).moveTo({el: el, x: center.x, y: center.y + 100}).release();

var m = new wd.MultiAction(this);

m.add(a1, a2);

return m.perform();

}.bind(this));

};