Used to generate school calendars for Apple Calendars (iCal whatever) for NHS schedules.

CreateMonthCalendar.scpt

// Create the application.  
var app = Application.currentApplication()

// Ensure that we have the Calendar application available for use.  
app.includeStandardAdditions = true

// This function is used when we need to prompt the user for something.  
function askUser(prompt) {
    var response = app.displayDialog(prompt, {
        defaultAnswer: "",
        withIcon: "note",
        buttons: ["Cancel", "Continue"],
        defaultButton: "Continue"
    })
    // Result: {"buttonReturned":"Continue", "textReturned":"Jen"}
    
    return response.textReturned
}

// Get the required info before we start.  
var inDays = parseInt(askUser("Monday is how many days from now?"));
var mondayWas = parseInt(askUser("Monday will be 1: Red1, 2: Blue1, ..."));
var weeksToAdd = parseInt(askUser("How many weeks should be populated?"));

var toSkip = askUser("Which weekdays, starting on monday, aren't school days? (comma space separated)");
var toSkipDays = [];
if (toSkip !== "") {
	var days = toSkip.split(", ");
	for (var day of days) {
		toSkipDays.push(parseInt(day));
	}
}

// Tell user the data we just got, in case they want to cancel early (entered something wrong for instance).  
app.displayDialog("Monday was " + inDays + " days ago and was a " +  mondayWas + " day, populating " + weeksToAdd + " weeks");

// Create Calendar events.  
app.includeStandardAdditions = true;
var CalendarApp = Application("Calendar");
var schoolCalendar = CalendarApp.calendars.whose({name: "School Calendar"})[0];

var myClassesRed1 = {
	"Guidance Sem": "7:30 - 8:10", 
	"Rec Activities for Life": "8:15 - 9:35", 
	"AP Physics C": "9:40 - 11:0", 
	"AP Economics": "12:57 - 14:17"
};

var myClassesBlue1 = {
	"AP Physics C Lab": "7:30 - 8:10", 
	"AP Psychology": "8:15 - 9:35", 
	"AP Spanish": "9:40 - 11:0", 
	"AP Literature Pre-Lunch": "11:05 - 11:22", 
	"Lunch": "11:27 - 11:52", 
	"AP Literature Post-Lunch": "11:57 - 12:52", 
};

var myClassesRed2 = {
	"Rec Activities for Life": "8:15 - 9:35", 
	"AP Physics C": "9:40 - 11:0", 
	"AP Economics": "12:57 - 14:17"
};

var myClassesBlue2 = {
	"AP Psychology": "8:15 - 9:35", 
	"AP Spanish": "9:40 - 11:0", 
	"AP Literature Pre-Lunch": "11:05 - 11:22", 
	"Lunch": "11:27 - 11:52", 
	"AP Literature Post-Lunch": "11:57 - 12:52", 
};

var toSkipIndex = 0;

var firstMonday = app.currentDate();
firstMonday.setDate(firstMonday.getDate() + inDays);

// The type of day
var scheduleForToday = mondayWas;

var daysPastMonday = 0;

for (var week = 1; week <= weeksToAdd; week++) {
	for (var weekday = 1; weekday <= 5; weekday++) {
		if (scheduleForToday === 5) {
			scheduleForToday = 1; // Re-cycle schedules.  
		}
		
		if (toSkipDays.length > 0 && daysPastMonday === toSkipDays[toSkipIndex]) {
			toSkipIndex++;
			daysPastMonday++;
			// scheduleForToday++; // Skip a schedule (maybe).  
			continue;
		}
	
		var todaysClasses;
		switch (scheduleForToday) {
			case 1: 
				todaysClasses = myClassesRed1;
				break;
			case 2: 
				todaysClasses = myClassesBlue1;
				break;
			case 3: 
				todaysClasses = myClassesRed2;
				break;
			case 4: 
				todaysClasses = myClassesBlue2;
				break;
		}
		
		// Add new events for today.  
		for (var newClass of Object.keys(todaysClasses)) {
			// Figure out the class times for this period.  
			var timesForClassToday = todaysClasses[newClass].split(" - ");
			
			// Start times.  
			var startStringTimes = timesForClassToday[0].split(":");
			var startHour = parseInt(startStringTimes[0]);
			var startMin = parseInt(startStringTimes[1]);
		
			// Set event params.  
			var eventStart = new Date();
			eventStart.setMonth(firstMonday.getMonth());
			eventStart.setDate(firstMonday.getDate() + daysPastMonday);
			eventStart.setHours(startHour);
			eventStart.setMinutes(startMin);
			eventStart.setSeconds(0);
			
			// Start times.  
			var endStringTimes = timesForClassToday[1].split(":");
			var endHour = parseInt(endStringTimes[0]);
			var endMin = parseInt(endStringTimes[1]);
			
			// Set event params.  
			var eventEnd = new Date();
			eventEnd.setMonth(firstMonday.getMonth());
			eventEnd.setDate(firstMonday.getDate() + daysPastMonday);
			eventEnd.setHours(endHour);
			eventEnd.setMinutes(endMin);
			eventEnd.setSeconds(0);
			 
			var event = CalendarApp.Event(
				{
					summary: newClass, 
					startDate: eventStart, 
					endDate: eventEnd
				}
			);
			schoolCalendar.events.push(event);
			// app.displayDialog("Adding event " + newClass + " First was " + firstMonday.getDate() + "Start Date " + eventStart + " End Date " + eventEnd);
			event
		}
		daysPastMonday++;
		scheduleForToday++;
	}
	
	daysPastMonday += 2; // Skip weekend
}