refactor: remove lodash

src/app/modules/calendar/ical/ical.spec.ts

@@ -1,12 +1,12 @@
 /*
- * Copyright (C) 2021 StApps
+ * Copyright (C) 2022 StApps
  *  This program is free software: you can redistribute it and/or modify it
  *  under the terms of the GNU General Public License as published by the Free
  *  Software Foundation, version 3.
  *
  *  This program is distributed in the hope that it will be useful, but WITHOUT
  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- *  FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public Licens for
+ *  FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  *  more details.
  *
  *  You should have received a copy of the GNU General Public License along with
@@ -15,8 +15,8 @@
 
 import {findRRules, RRule} from './ical';
 import moment, {unitOfTime} from 'moment';
-import {shuffle} from 'lodash-es';
 import {SCISO8601Date} from '@openstapps/core';
+import {shuffle} from '../../../_helpers/collections/shuffle';
 
 /**
  *

src/app/modules/calendar/ical/ical.ts

@@ -1,12 +1,12 @@
 /*
- * Copyright (C) 2021 StApps
+ * Copyright (C) 2022 StApps
  *  This program is free software: you can redistribute it and/or modify it
  *  under the terms of the GNU General Public License as published by the Free
  *  Software Foundation, version 3.
  *
  *  This program is distributed in the hope that it will be useful, but WITHOUT
  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- *  FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public Licens for
+ *  FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  *  more details.
  *
  *  You should have received a copy of the GNU General Public License along with
@@ -20,16 +20,9 @@ import {
   SCThingWithCategories,
   SCUuid,
 } from '@openstapps/core';
-import {
-  difference,
-  flatMap,
-  isObject,
-  last,
-  mapValues,
-  minBy,
-  size,
-} from 'lodash-es';
 import moment, {unitOfTime} from 'moment';
+import {minBy} from '../../../_helpers/collections/min';
+import {mapValues} from '../../../_helpers/collections/map-values';
 
 export interface ICalEvent {
   name?: string;
@@ -126,7 +119,7 @@ export function findRRules(
   for (let i = 0; i < sorted.length; i++) {
     const current = sorted[i];
     const next = sorted[i + 1] as SCISO8601Date | undefined;
-    const element = last(output);
+    const element = output[output.length - 1];
 
     const units: unitOfTime.Diff[] = element?.freq
       ? [element.freq]
@@ -208,8 +201,9 @@ export function toICal(
   options: ToICalOptions = {},
 ): ICalEvent[] {
   const rrules = findRRules(
-    options.excludeCancelledEvents
-      ? difference(dateSeries.dates, dateSeries.exceptions ?? [])
+    options.excludeCancelledEvents && dateSeries.exceptions
+      ? // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+        dateSeries.dates.filter(it => !dateSeries.exceptions!.includes(it))
       : dateSeries.dates,
   );
 
@@ -276,8 +270,9 @@ function stringifyLinebreaks<T extends string | unknown[] | unknown>(
   if (Array.isArray(value)) {
     return value.map(stringifyLinebreaks) as T;
   }
-  if (isObject(value)) {
-    return mapValues(value, stringifyLinebreaks) as T;
+  // noinspection SuspiciousTypeOfGuard
+  if (value instanceof Object) {
+    return mapValues<object, unknown>(value, stringifyLinebreaks) as T;
   }
   return value;
 }
@@ -348,7 +343,7 @@ export function serializeICalEvent(iCal: ICalEvent): ICalLike {
     `STATUS:${normalized.cancelled === true ? 'CANCELLED' : 'CONFIRMED'}`,
     `URL:${normalized.url}`,
     // `RDATE;VALUE=DATE:${normalized.dates.join(',')}`,
-    size(normalized.exceptionDates) > 0
+    (normalized.exceptionDates?.length ?? 0) > 0
       ? `EXDATE;VALUE=DATE:${normalized.exceptionDates?.join(',')}`
       : undefined,
     `RRULE:${serializeRRule(normalized.rrule)}`,
@@ -372,7 +367,7 @@ export function serializeICal(iCal: ICalEvent[]): string {
     'CALSCALE:GREGORIAN',
     'COLOR:#FF0000',
     'METHOD:PUBLISH',
-    ...flatMap(iCal, serializeICalEvent),
+    ...iCal.flatMap(serializeICalEvent),
     'END:VCALENDAR',
   ]);
 }
@@ -384,7 +379,7 @@ export function getNativeCalendarExport(
   dateSeries: SCDateSeries[],
   translator: SCThingTranslator,
 ): ICalEvent[] {
-  return flatMap(dateSeries, event =>
+  return dateSeries.flatMap(event =>
     toICal(event, translator, {
       allowRRuleExceptions: false,
       excludeCancelledEvents: true,
@@ -401,14 +396,14 @@ export function getICalExport(
   includeCancelled: boolean,
 ): ICalEvent[] {
   return [
-    ...flatMap(dateSeries, event =>
+    ...dateSeries.flatMap(event =>
       toICal(event, translator, {
         allowRRuleExceptions: false,
         excludeCancelledEvents: !includeCancelled,
       }),
     ),
     ...(includeCancelled
-      ? flatMap(dateSeries, event => toICalUpdates(event, translator))
+      ? dateSeries.flatMap(event => toICalUpdates(event, translator))
       : []),
   ];
 }