custom_canvas_import.js

async function getElement(selectorText, iframe="") {
    let element;
    if (iframe === "") {
        element = $(selectorText);
    } else {
        element = $(iframe).contents().find(selectorText);
    }
    if (element.length > 0 && element.html().trim() !== "") {
        return element;
    } else {
        await delay(1000);
        return getElement(selectorText, iframe);
    }
}

var s = document.createElement("script");
s.type = "text/javascript";
s.src = "https://jhveem.github.io/external-libraries/sorttable.js";
$("head").append(s);
$("head").append('<script src="https://kit.fontawesome.com/870f83fdd7.js" crossorigin="anonymous"></script>');

function addMenuItem(linkText, linkhref) {
	'use strict';
	var itemHtml;
	var linkId = linkText.split(' ').join('_');

	itemHtml = '<li clas="section">' + 
		' <a href="' + linkhref + '" tabindex="0">' +
		linkText +
		' </a>' +
		'</li>';
	$('#section-tabs').append(itemHtml);
}


//zoom into picture on hover
$('span.avatar').hover(function() {
    let large = $(this).clone();
    large.css('width', '250px');
    large.css('height', '250px');
    large.css('position', 'fixed');
    large.attr('id', 'btech-avatar-zoomed');
    large.css('top', $(this).offset().top - $(window).scrollTop()+'px');
    large.css('left', $(this).offset().left - $(window).scrollLeft()+'px');
    large.css('z-index', '10000');
    $('body').append(large);
}, function() {
    $('#btech-avatar-zoomed').remove();
});
//end zoom on hover

/*gen report on gradebook page
if (/^\/courses\/[0-9]+\/gradebook$/.test(window.location.pathname)) {
  var scriptElement = document.createElement( "script" );
  scriptElement.src = "https://jhveem.github.io/reports/reports_functions.js";
  document.body.appendChild( scriptElement );
  scriptElement.onload = function() {
    let individualReportElement = document.createElement( "script" );
    individualReportElement.src = "https://jhveem.github.io/reports/grades_report.js";
    document.body.appendChild(individualReportElement);
  }
}
/*END report*/

/*gen report on individual page
if (/^\/users\/[0-9]+/.test(window.location.pathname) || /^\/accounts\/[0-9]+\/users\/[0-9]+/.test(window.location.pathname)) {
  var scriptElement = document.createElement( "script" );
  scriptElement.src = "https://jhveem.github.io/reports/reports_functions.js";
  document.body.appendChild( scriptElement );
  scriptElement.onload = function() {
    let individualReportElement = document.createElement( "script" );
    individualReportElement.src = "https://jhveem.github.io/reports/individual_grades_report.js";
    document.body.appendChild(individualReportElement);
  }
}
/*END report*/


//*Show ungraded as 0 Final Grade next to Final Grade based on submitted assignments only.
if (window.location.pathname == "/grades") {
	let user = ENV.current_user_id;
	let tbody = $("table.student_grades").find("tbody");
	$("table.student_grades").find("tbody").find("tr").each(function(i) {
		let element = this;
		let courseURL = $(this).find("a").attr("href");
		let urlArray = courseURL.split("/");
		let course = urlArray[2];
		$.get("/api/v1/courses/"+course+"/enrollments?user_id="+user, function(data) {
			let score = data[0].grades.final_score;
			$(element).append('<td class="percent">'+score+'%</td>');
		});
	});
	tbody.prepend("<tr><td></td><td>Completed Assignments</td><td></td><td>Final Grade</td></tr>");
}


//this adds a link to speed grader on the canvas assignment grading page to make it easier to access
if (/^\/courses\/[0-9]+\/assignments\/[0-9]+\/submissions\/[0-9]+/.test(window.location.pathname)) {
  let pieces = window.location.pathname.match(/^\/courses\/([0-9]+)\/assignments\/([0-9]+)\/submissions\/([0-9]+)/);
  let speed_grader_link = '<br><a class="assess_submission_link Button Button--small Button--link" href="/courses/'+pieces[1]+'/gradebook/speed_grader?assignment_id='+pieces[2]+'&student_id='+pieces[3]+'"><i class="icon-rubric" aria-hidden="true"></i> Speed Grader</a>';
  $(".submission-details-header__rubric--can-grade").append(speed_grader_link);
}
//END SPEED GRADER LINK

//Specific to Animal Sciences, this is hiding certain modules that students who are in specific sections do not need to see
if (/^\/courses\/[0-9]+\/modules$/.test(window.location.pathname)) {
  if (ENV.course_id === "488475") {
    let isStudent = ENV.IS_STUDENT;
    if (isStudent) {
        let modules = $('.item-group-condensed');
        let newStudent = $(modules[1]).find('div.ig-row').length === 1;
        if (newStudent === false) {
            $(modules[1]).hide();
        }
        $('.item-group-condensed').each(function(index, value) {
            let prereq = $(value).find('.ig-header').find('.prerequisites').text();
            if (prereq.includes('Computer Policy') && newStudent === false) {
                $(value).hide();
            }
            if (prereq.includes('Welcome') && newStudent === true) {
                $(value).hide();
            }
        });
    }
  }
}
//END Animal Sciences//