inbar-add-matrix-to-calendar.js

var inbarCalendarByUv = () => {
    const CONTINUE_TEXT = 'המשך';
    const GOOGLE_CAL_IMPORT_URL = 'https://calendar.google.com/calendar/r/settings/export';
    const BTN_ID = 'uv-cal-btn';
    const meetTypes = {
        lecture: 1,
        exercise: 2,
        lab: 3,
        freeHours: 4,
    };
    const textToMeetType = {
        'הרצאה': meetTypes.lecture,
        'תרגיל': meetTypes.exercise,
        'מעבדה': meetTypes.lab,
        'ש.מחלקה': meetTypes.freeHours,
    };
    const meetTypeToText = {
        [meetTypes.lecture] : 'הרצאה',
        [meetTypes.exercise] : 'תרגיל',
        [meetTypes.lab] : 'מעבדה',
    }

    const openInNewTab = url => {
        const win = window.open(url, '_blank');
        win.focus();
    };
    const getEndSemesterDate = (onChange) => {
        const select = document.querySelector('.ToolBarCell1 select');

        const getValue = () => {
            const date = new Date();
            date.setDate(1);
            let month;
            switch (select.value) {         
                case '1':
                default:
                    month = 1;
                    break;
                case '2':
                    month = 6;
                    break;
                case '3':
                    month = 9;
                    break;
            }
            date.setMonth(month);

            return date;
        };
        const defaultValue = getValue();

        if (onChange) {
            select.addEventListener('change', () => {
                onChange(getValue());
            });
        }
        
        return defaultValue;
    };
    const getEventName = (course, meet) => {
        if (meet.type === meetTypes.freeHours) {
            return `${course.name} (${course.number})`;
        }
        return `${meetTypeToText[meet.type]} - ${course.name} (${course.number})`;
    };
    const addButton = () => {
        const td = document.createElement('td');
        const button = document.createElement('button');
        td.appendChild(button);

        button.id = BTN_ID;
        button.innerText = 'ייצוא ליומן ע"י יובל';

        document.querySelector('.ToolBarCell1 tr').appendChild(td);

        return button;
    };
    const addDatePicker = () => {
        const td = document.createElement('td');
        const input = document.createElement('input');
        td.innerText = 'תאריך סוף סמסטר: ';
        td.appendChild(input);

        input.type = 'date';

        const setValue = date => {
            const local = new Date(date);
            local.setMinutes(date.getMinutes() - date.getTimezoneOffset());
            input.value = local.toJSON().slice(0,10);
        };
        const defaultValue = getEndSemesterDate(newValue => {
            setValue(newValue);
        });
        setValue(defaultValue);
        
        document.querySelector('.ToolBarCell1 tr').appendChild(td);

        return input;
    };
    const getTds = () => {
        return Array.from(document.querySelectorAll('#ContentPlaceHolder1_matrixA_gvMatrixPeriodSchedule td'));
    };
    const getDataTds = () => {
        const tds = getTds();
        return tds.filter(td => td.innerHTML !== ' ');
    }
    const modTable = () => {
        const tds = getDataTds();
        tds.forEach(td => {
            const html = td.innerHTML;
            td.innerHTML = `${html.replace(/<span/g, '<div><span').replace('br><div>', 'br></div><div>')}</div>`;
        });
    };
    const getCourseElements = () => {
        return Array.from(document.querySelectorAll('#ContentPlaceHolder1_matrixA_gvMatrixPeriodSchedule td div'));
    };
    const getCourses = () => {
        const elms = getCourseElements();

        const courses = [];
        const coursesNamesToIndex = {};

        elms.forEach(elm => {
            const rowIndex = elm.parentElement.parentElement.rowIndex;
            const columnIndex = elm.parentElement.cellIndex;

            const text = elm.innerText;
            const lines = text.split('\n');
            const headline = lines[0];
            const headlineNoNumber = headline.replace(/\(\d.*/, '').trim();
            let index = coursesNamesToIndex[headlineNoNumber];
            if (index === undefined) {
                index = courses.length;
                coursesNamesToIndex[headlineNoNumber] = index;
                const courseNumber = headline.match(/\((.*)\-/)[1];

                courses[index] = {
                    name: headlineNoNumber,
                    number: courseNumber,
                    meets: [],
                }
            }

            const course = courses[index];
            const day = columnIndex - 1;
            const startTime =  rowIndex + 7;
            const endTime = rowIndex + 8;
            const isContinueMeet = [lines[0], lines[1]].some(line => line.indexOf(CONTINUE_TEXT) !== -1);
            if (!isContinueMeet) {
                const meetType = textToMeetType[lines[1]];

                course.meets.push({
                    type: meetType,
                    day,
                    startTime,
                    endTime,
                    lecturers: lines[2],
                    location: lines[3],
                    elements: [elm],
                });
            } else {
                const meet = course.meets.find(meet => {
                    return (meet.endTime === startTime) && (meet.day === day);
                });
                meet.endTime = endTime;
                meet.elements.push(elm);
            } 
        });

        return courses;
    };


    if (!document.querySelector(`#${BTN_ID}`)) {
        const datePicker = addDatePicker();
        const button = addButton();
        modTable();

        button.addEventListener('click', () => {
            var saveAs = saveAs||function(e){"use strict";if(typeof e==="undefined"||typeof navigator!=="undefined"&&/MSIE [1-9]\./.test(navigator.userAgent)){return}var t=e.document,n=function(){return e.URL||e.webkitURL||e},r=t.createElementNS("http://www.w3.org/1999/xhtml","a"),o="download"in r,a=function(e){var t=new MouseEvent("click");e.dispatchEvent(t)},i=/constructor/i.test(e.HTMLElement)||e.safari,f=/CriOS\/[\d]+/.test(navigator.userAgent),u=function(t){(e.setImmediate||e.setTimeout)(function(){throw t},0)},s="application/octet-stream",d=1e3*40,c=function(e){var t=function(){if(typeof e==="string"){n().revokeObjectURL(e)}else{e.remove()}};setTimeout(t,d)},l=function(e,t,n){t=[].concat(t);var r=t.length;while(r--){var o=e["on"+t[r]];if(typeof o==="function"){try{o.call(e,n||e)}catch(a){u(a)}}}},p=function(e){if(/^\s*(?:text\/\S*|application\/xml|\S*\/\S*\+xml)\s*;.*charset\s*=\s*utf-8/i.test(e.type)){return new Blob([String.fromCharCode(65279),e],{type:e.type})}return e},v=function(t,u,d){if(!d){t=p(t)}var v=this,w=t.type,m=w===s,y,h=function(){l(v,"writestart progress write writeend".split(" "))},S=function(){if((f||m&&i)&&e.FileReader){var r=new FileReader;r.onloadend=function(){var t=f?r.result:r.result.replace(/^data:[^;]*;/,"data:attachment/file;");var n=e.open(t,"_blank");if(!n)e.location.href=t;t=undefined;v.readyState=v.DONE;h()};r.readAsDataURL(t);v.readyState=v.INIT;return}if(!y){y=n().createObjectURL(t)}if(m){e.location.href=y}else{var o=e.open(y,"_blank");if(!o){e.location.href=y}}v.readyState=v.DONE;h();c(y)};v.readyState=v.INIT;if(o){y=n().createObjectURL(t);setTimeout(function(){r.href=y;r.download=u;a(r);h();c(y);v.readyState=v.DONE});return}S()},w=v.prototype,m=function(e,t,n){return new v(e,t||e.name||"download",n)};if(typeof navigator!=="undefined"&&navigator.msSaveOrOpenBlob){return function(e,t,n){t=t||e.name||"download";if(!n){e=p(e)}return navigator.msSaveOrOpenBlob(e,t)}}w.abort=function(){};w.readyState=w.INIT=0;w.WRITING=1;w.DONE=2;w.error=w.onwritestart=w.onprogress=w.onwrite=w.onabort=w.onerror=w.onwriteend=null;return m}(typeof self!=="undefined"&&self||typeof window!=="undefined"&&window||this.content);if(typeof module!=="undefined"&&module.exports){module.exports.saveAs=saveAs}else if(typeof define!=="undefined"&&define!==null&&define.amd!==null){define("FileSaver.js",function(){return saveAs})}
            var ics = function (e, t) { "use strict"; { if (!(navigator.userAgent.indexOf("MSIE") > -1 && -1 == navigator.userAgent.indexOf("MSIE 10"))) { void 0 === e && (e = "default"), void 0 === t && (t = "Calendar"); var r = -1 !== navigator.appVersion.indexOf("Win") ? "\r\n" : "\n", n = [], i = ["BEGIN:VCALENDAR", "PRODID:" + t, "VERSION:2.0"].join(r), o = r + "END:VCALENDAR", a = ["SU", "MO", "TU", "WE", "TH", "FR", "SA"]; return { events: function () { return n }, calendar: function () { return i + r + n.join(r) + o }, addEvent: function (t, i, o, l, u, s) { if (void 0 === t || void 0 === i || void 0 === o || void 0 === l || void 0 === u) return !1; if (s && !s.rrule) { if ("YEARLY" !== s.freq && "MONTHLY" !== s.freq && "WEEKLY" !== s.freq && "DAILY" !== s.freq) throw "Recurrence rrule frequency must be provided and be one of the following: 'YEARLY', 'MONTHLY', 'WEEKLY', or 'DAILY'"; if (s.until && isNaN(Date.parse(s.until))) throw "Recurrence rrule 'until' must be a valid date string"; if (s.interval && isNaN(parseInt(s.interval))) throw "Recurrence rrule 'interval' must be an integer"; if (s.count && isNaN(parseInt(s.count))) throw "Recurrence rrule 'count' must be an integer"; if (void 0 !== s.byday) { if ("[object Array]" !== Object.prototype.toString.call(s.byday)) throw "Recurrence rrule 'byday' must be an array"; if (s.byday.length > 7) throw "Recurrence rrule 'byday' array must not be longer than the 7 days in a week"; s.byday = s.byday.filter(function (e, t) { return s.byday.indexOf(e) == t }); for (var c in s.byday) if (a.indexOf(s.byday[c]) < 0) throw "Recurrence rrule 'byday' values must include only the following: 'SU', 'MO', 'TU', 'WE', 'TH', 'FR', 'SA'" } } var g = new Date(l), d = new Date(u), f = new Date, S = ("0000" + g.getFullYear().toString()).slice(-4), E = ("00" + (g.getMonth() + 1).toString()).slice(-2), v = ("00" + g.getDate().toString()).slice(-2), y = ("00" + g.getHours().toString()).slice(-2), A = ("00" + g.getMinutes().toString()).slice(-2), T = ("00" + g.getSeconds().toString()).slice(-2), b = ("0000" + d.getFullYear().toString()).slice(-4), D = ("00" + (d.getMonth() + 1).toString()).slice(-2), N = ("00" + d.getDate().toString()).slice(-2), h = ("00" + d.getHours().toString()).slice(-2), I = ("00" + d.getMinutes().toString()).slice(-2), R = ("00" + d.getMinutes().toString()).slice(-2), M = ("0000" + f.getFullYear().toString()).slice(-4), w = ("00" + (f.getMonth() + 1).toString()).slice(-2), L = ("00" + f.getDate().toString()).slice(-2), O = ("00" + f.getHours().toString()).slice(-2), p = ("00" + f.getMinutes().toString()).slice(-2), Y = ("00" + f.getMinutes().toString()).slice(-2), U = "", V = ""; y + A + T + h + I + R != 0 && (U = "T" + y + A + T, V = "T" + h + I + R); var B, C = S + E + v + U, j = b + D + N + V, m = M + w + L + ("T" + O + p + Y); if (s) if (s.rrule) B = s.rrule; else { if (B = "rrule:FREQ=" + s.freq, s.until) { var x = new Date(Date.parse(s.until)).toISOString(); B += ";UNTIL=" + x.substring(0, x.length - 13).replace(/[-]/g, "") + "000000Z" } s.interval && (B += ";INTERVAL=" + s.interval), s.count && (B += ";COUNT=" + s.count), s.byday && s.byday.length > 0 && (B += ";BYDAY=" + s.byday.join(",")) } (new Date).toISOString(); var H = ["BEGIN:VEVENT", "UID:" + n.length + "@" + e, "CLASS:PUBLIC", "DESCRIPTION:" + i, "DTSTAMP;VALUE=DATE-TIME:" + m, "DTSTART;VALUE=DATE-TIME:" + C, "DTEND;VALUE=DATE-TIME:" + j, "LOCATION:" + o, "SUMMARY;LANGUAGE=en-us:" + t, "TRANSP:TRANSPARENT", "END:VEVENT"]; return B && H.splice(4, 0, B), H = H.join(r), n.push(H), H }, download: function (e, t) { if (n.length < 1) return !1; t = void 0 !== t ? t : ".ics", e = void 0 !== e ? e : "calendar"; var a, l = i + r + n.join(r) + o; if (-1 === navigator.userAgent.indexOf("MSIE 10")) a = new Blob([l]); else { var u = new BlobBuilder; u.append(l), a = u.getBlob("text/x-vCalendar;charset=" + document.characterSet) } return saveAs(a, e + t), l }, build: function () { return !(n.length < 1) && i + r + n.join(r) + o } } } console.log("Unsupported Browser") } };
            var cal = ics();

            const now = new Date();
            const untilDate = new Date(datePicker.value);

            const courses = getCourses();
            courses.forEach(course => {
                course.meets.forEach(meet => {
                    const dayDiff = meet.day - now.getDay();
                    const dayOffset = dayDiff >= 0 ? dayDiff : (7 + dayDiff);

                    const beginDate = new Date(now.valueOf());
                    beginDate.setDate(beginDate.getDate() + dayOffset);
                    beginDate.setMilliseconds(0);
                    beginDate.setSeconds(0);
                    beginDate.setMinutes(0);
                    beginDate.setHours(meet.startTime);

                    const endDate = new Date(now.valueOf());
                    endDate.setDate(endDate.getDate() + dayOffset);
                    endDate.setMilliseconds(0);
                    endDate.setSeconds(0);
                    endDate.setMinutes(0);
                    endDate.setHours(meet.endTime);
                    
                    cal.addEvent(
                        getEventName(course, meet),
                        meet.lecturers,
                        meet.location,
                        beginDate,
                        endDate,
                        {
                            freq: 'WEEKLY',
                            until: untilDate,
                        }
                    );
                });
            })
            cal.download();
            openInNewTab(GOOGLE_CAL_IMPORT_URL);
            // alert(`You have ${courses.length} courses.`);
        });
    }
};

inbarCalendarByUv();

1. Add bookmark with name "הוצאה ליומן" and address - javascript:(function(){var%20t=document.createElement("script");t.src="//gist.github.com/unimonkiez/37732ff625e3cf282813cfff82c39ff6/raw/5dfd130b50840ab479df8ad54053321abdcc1663/inbar-add-matrix-to-calendar.js",document.getElementsByTagName("head")[0].appendChild(t)})();.
2. Login to Inbar and press "מערכת שעות - מטריצה".
3. Choose the current semester
4. Click on the bookmark you added
5. ???
6. Profit