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import $ from 'jquery';

function addMiscFunctions(AblePlayer) {

AblePlayer.prototype.getNextHeadingLevel = function ($element) {

// Finds the nearest heading in the ancestor tree

// Loops over each parent of the current element until a heading is found

// If multiple headings are found beneath a given parent, get the closest

// Returns an integer (1-6) representing the next available heading level

var $parents, $foundHeadings, numHeadings, headingType, headingNumber;

$parents = $element.parents();

$parents.each(function () {

$foundHeadings = $(this).children(":header");

numHeadings = $foundHeadings.length;

if (numHeadings) {

headingType = $foundHeadings.eq(numHeadings - 1).prop("tagName");

return false;

}

});

if (typeof headingType === "undefined") {

// page has no headings

headingNumber = 1;

} else {

// Increment closest heading by one if less than 6.

headingNumber = parseInt(headingType[1]);

headingNumber += 1;

if (headingNumber > 6) {

headingNumber = 6;

}

}

return headingNumber;

};

AblePlayer.prototype.countProperties = function (obj) {

// returns the number of properties in an object

var count, prop;

count = 0;

for (prop in obj) {

if (Object.hasOwn(obj, prop)) {

++count;

}

}

return count;

};

AblePlayer.prototype.formatSecondsAsColonTime = function (

seconds,

showFullTime

) {

// Takes seconds and converts to string of form hh:mm:ss

// If showFullTime is true, shows 00 for hours if time is less than an hour

// and show milliseconds (e.g., 00:00:04.123 as in Video Track Sorter)

// Otherwise, omits empty hours and milliseconds (e.g., 00:04 as in timer on controller)

var times,format,parts,milliSeconds,numShort,i;

if (showFullTime) {

// preserve milliseconds, if included in seconds

parts = seconds.toString().split(".");

if (parts.length === 2) {

milliSeconds = parts[1];

if (milliSeconds.length < 3) {

numShort = 3 - milliSeconds.length;

for (i = 1; i <= numShort; i++) {

milliSeconds += "0";

}

}

} else {

milliSeconds = "000";

}

}

times = this.secondsToTime( seconds );

format = times['value'];

return (showFullTime) ? format + '.' + milliSeconds : format;

};

AblePlayer.prototype.getSecondsFromColonTime = function (timeStr) {

// Converts string of form hh:mm:ss to seconds

var timeParts, hours, minutes, seconds;

timeParts = timeStr.split(":");

if (timeParts.length === 3) {

hours = parseInt(timeParts[0]);

minutes = parseInt(timeParts[1]);

seconds = parseFloat(timeParts[2]);

return hours * 3600 + minutes * 60 + seconds;

} else if (timeParts.length === 2) {

minutes = parseInt(timeParts[0]);

seconds = parseFloat(timeParts[1]);

return minutes * 60 + seconds;

} else if (timeParts.length === 1) {

seconds = parseFloat(timeParts[0]);

return seconds;

}

};

AblePlayer.prototype.capitalizeFirstLetter = function (string) {

return string.charAt(0).toUpperCase() + string.slice(1);

};

AblePlayer.prototype.roundDown = function (value, decimals) {

// round value down to the nearest X decimal points

// where X is the value of the decimals parameter

return Number(Math.floor(value + "e" + decimals) + "e-" + decimals);

};

AblePlayer.prototype.defer = function() {

const self = this;

const promise = new Promise((resolve, reject) => {

self.resolve = resolve;

self.reject = reject;

self.promise = () => promise;

});

}

AblePlayer.prototype.getScript = function( source, callback ) {

var script = document.createElement('script');

var prior = document.getElementsByTagName('script')[0];

script.async = 1;

script.onload = script.onreadystatechange = function( _, isAbort ) {

if ( isAbort || !script.readyState || /loaded|complete/.test(script.readyState) ) {

script.onload = script.onreadystatechange = null;

script = undefined;

if ( !isAbort && callback ) {

setTimeout(callback, 0);

}

}

};

script.src = source;

prior.parentNode.insertBefore(script, prior);

}

AblePlayer.prototype.hasAttr = function (object, attribute) {

// surprisingly, there is no hasAttr() function in Jquery as of 3.2.1

// return true if object has attribute; otherwise false

// selector is a Jquery object

// attribute is a string

var attr = object.attr(attribute);

// For some browsers, `attr` is undefined; for others,

// `attr` is false. Check for both.

if (typeof attr !== typeof undefined && attr !== false) {

return true;

} else {

return false;

}

};

}

export default addMiscFunctions;