feat: exporting to txt again (#733)

* feat: initial functions for exporting to txt

* feat: add save as text to calendar header new export option

* docs: comment for saveAsText()

* feat: generate text line by line for each course

* docs: jsdoc

* chore: lint

* Apply suggestion from @doprz

---------

Co-authored-by: Diego Perez <52579214+doprz@users.noreply.github.com>

src/views/components/calendar/CalendarHeader/CalendarHeader.tsx

@@ -1,5 +1,5 @@
 import { Menu, MenuButton, MenuItem, MenuItems } from '@headlessui/react';
-import { CalendarDots, Export, FileCode, FilePng, Sidebar } from '@phosphor-icons/react';
+import { CalendarDots, Export, FileCode, FilePng, FileText, Sidebar } from '@phosphor-icons/react';
 import styles from '@views/components/calendar/CalendarHeader/CalendarHeader.module.scss';
 import { Button } from '@views/components/common/Button';
 import DialogProvider from '@views/components/common/DialogProvider/DialogProvider';
@@ -11,7 +11,7 @@ import useSchedules from '@views/hooks/useSchedules';
 import clsx from 'clsx';
 import React from 'react';
 
-import { handleExportJson, saveAsCal, saveCalAsPng } from '../utils';
+import { handleExportJson, saveAsCal, saveAsText, saveCalAsPng } from '../utils';
 
 interface CalendarHeaderProps {
     sidebarOpen?: boolean;
@@ -111,6 +111,18 @@ export default function CalendarHeader({ sidebarOpen, onSidebarToggle }: Calenda
                                         Save as .json
                                     </Button>
                                 </MenuItem>
+                                <MenuItem>
+                                    <Button
+                                        className='w-full flex justify-start'
+                                        onClick={saveAsText}
+                                        color='ut-black'
+                                        size='small'
+                                        variant='minimal'
+                                        icon={FileText}
+                                    >
+                                        Save as .txt
+                                    </Button>
+                                </MenuItem>
                                 {/* <MenuItem>
                                     <Button color='ut-black' size='small' variant='minimal' icon={FileTxt}>
                                         Export Unique IDs

src/views/components/calendar/utils.ts

@@ -245,6 +245,27 @@ export const scheduleToIcsString = (schedule: Serialized<UserSchedule>) => {
     return icsString;
 };
 
+/**
+ * Returns the provided schedule in a human readable/copyable text format
+ * @param schedule - The schedule object
+ * @returns
+ */
+export const scheduleToText = (schedule: Serialized<UserSchedule>) => {
+    const lines: string[] = [];
+
+    lines.push(`Schedule: ${schedule.name}`);
+    lines.push('');
+
+    for (const c of schedule.courses) {
+        lines.push(c.fullName);
+        lines.push(`${c.creditHours} Credit Hours`);
+        lines.push(`${c.uniqueId}`);
+        lines.push('');
+    }
+
+    return lines.join('\n');
+};
+
 /**
  * Saves the current schedule as a calendar file in the iCalendar format (ICS).
  * Fetches the current active schedule and converts it into an ICS string.
@@ -262,6 +283,25 @@ export const saveAsCal = async () => {
     downloadBlob(icsString, 'CALENDAR', 'schedule.ics');
 };
 
+/**
+ * Save current schedule as a plain text file consisting of
+ * Course Name - Course ID
+ * Course Time
+ * Unique Number
+ * Line Break
+ * Repeat
+ */
+export const saveAsText = async () => {
+    const schedule = await getSchedule();
+
+    if (!schedule) {
+        throw new Error('No schedule found');
+    }
+
+    const scheduleText = scheduleToText(schedule);
+    downloadBlob(scheduleText, 'TEXT', 'schedule.txt');
+};
+
 /**
  * Saves current schedule to JSON that can be imported on other devices.
  * @param id - Provided schedule ID to download