feat: timetable module - schedule and calendar

src/app/util/array-last.pipe.ts

@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2021 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 License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+import {Injectable, Pipe, PipeTransform} from '@angular/core';
+import {last} from 'lodash-es';
+
+/**
+ * Get the last value of an array
+ */
+@Injectable()
+@Pipe({
+  name: 'last',
+  pure: true,
+})
+export class ArrayLastPipe implements PipeTransform {
+  /**
+   * Transform
+   */
+  // tslint:disable-next-line:prefer-function-over-method
+  transform<T>(value: T[]): T | undefined {
+    return last(value);
+  }
+}

src/app/util/date-is-today.pipe.ts

@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2021 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 License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+import {Injectable, Pipe, PipeTransform} from '@angular/core';
+import moment, {Moment, unitOfTime} from 'moment';
+
+/**
+ * Get the last value of an array
+ */
+@Injectable()
+@Pipe({
+  name: 'dateIsThis',
+  pure: false, // pure pipe can break in some change detection scenarios,
+  // specifically, on the calendar view it causes it to stay true even when you navigate
+})
+export class DateIsThisPipe implements PipeTransform {
+  /**
+   * Transform
+   */
+  // tslint:disable-next-line:prefer-function-over-method
+  transform(value: Moment, granularity: unitOfTime.StartOf): boolean {
+    return value.isSame(moment(moment.now()), granularity);
+  }
+}

src/app/util/nullish-coalecing.pipe.ts

@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2021 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 License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+import {Injectable, Pipe, PipeTransform} from '@angular/core';
+
+/**
+ * Get the last value of an array
+ */
+@Injectable()
+@Pipe({
+  name: 'nullishCoalesce',
+  pure: true,
+})
+export class NullishCoalescingPipe implements PipeTransform {
+  /**
+   * Transform
+   */
+  // tslint:disable-next-line:prefer-function-over-method
+  transform<T, G>(value: T, fallback: G): T | G {
+    return value ?? fallback;
+  }
+}

src/app/util/util.module.ts

@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2021 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 License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+import {NgModule} from '@angular/core';
+import {ArrayLastPipe} from './array-last.pipe';
+import {DateIsThisPipe} from './date-is-today.pipe';
+import {NullishCoalescingPipe} from './nullish-coalecing.pipe';
+
+@NgModule({
+  declarations: [ArrayLastPipe, DateIsThisPipe, NullishCoalescingPipe],
+  exports: [ArrayLastPipe, DateIsThisPipe, NullishCoalescingPipe],
+})
+export class UtilModule {}