278 lines
9.6 KiB
TypeScript

// (C) Copyright 2015 Martin Dougiamas
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
import { Injectable } from '@angular/core';
import { CoreLoggerProvider } from '@providers/logger';
import { CoreSitesProvider } from '@providers/sites';
import { CoreCourseProvider } from '@core/course/providers/course';
import { AddonCalendarProvider } from './calendar';
import { CoreConstants } from '@core/constants';
import * as moment from 'moment';
/**
* Service that provides some features regarding lists of courses and categories.
*/
@Injectable()
export class AddonCalendarHelperProvider {
protected logger;
protected EVENTICONS = {
course: 'fa-university',
group: 'people',
site: 'globe',
user: 'person',
category: 'fa-cubes'
};
constructor(logger: CoreLoggerProvider,
private courseProvider: CoreCourseProvider,
private sitesProvider: CoreSitesProvider,
private calendarProvider: AddonCalendarProvider) {
this.logger = logger.getInstance('AddonCalendarHelperProvider');
}
/**
* Calculate some day data based on a list of events for that day.
*
* @param {any} day Day.
* @param {any[]} events Events.
*/
calculateDayData(day: any, events: any[]): void {
day.hasevents = events.length > 0;
day.haslastdayofevent = false;
const types = {};
events.forEach((event) => {
types[event.eventtype] = true;
if (event.islastday) {
day.haslastdayofevent = true;
}
});
day.calendareventtypes = Object.keys(types);
}
/**
* Check if current user can create/edit events.
*
* @param {number} [courseId] Course ID. If not defined, site calendar.
* @param {string} [siteId] Site ID. If not defined, current site.
* @return {Promise<boolean>} Promise resolved with boolean: whether the user can create events.
*/
canEditEvents(courseId?: number, siteId?: string): Promise<boolean> {
return this.calendarProvider.canEditEvents(siteId).then((canEdit) => {
if (!canEdit) {
return false;
}
// Site allows creating events. Check if the user has permissions to do so.
return this.calendarProvider.getAllowedEventTypes(courseId, siteId).then((types) => {
return Object.keys(types).length > 0;
});
}).catch(() => {
return false;
});
}
/**
* Classify events into their respective months and days. If an event duration covers more than one day,
* it will be included in all the days it lasts.
*
* @param {any[]} events Events to classify.
* @return {{[monthId: string]: {[day: number]: any[]}}} Object with the classified events.
*/
classifyIntoMonths(events: any[]): {[monthId: string]: {[day: number]: any[]}} {
const result = {};
events.forEach((event) => {
const treatedDay = moment(new Date(event.timestart * 1000)),
endDay = moment(new Date((event.timestart + (event.timeduration || 0)) * 1000));
// Add the event to all the days it lasts.
while (!treatedDay.isAfter(endDay, 'day')) {
const monthId = this.getMonthId(treatedDay.year(), treatedDay.month() + 1),
day = treatedDay.date();
if (!result[monthId]) {
result[monthId] = {};
}
if (!result[monthId][day]) {
result[monthId][day] = [];
}
result[monthId][day].push(event);
treatedDay.add(1, 'day'); // Treat next day.
}
});
return result;
}
/**
* Convenience function to format some event data to be rendered.
*
* @param {any} e Event to format.
*/
formatEventData(e: any): void {
e.icon = this.EVENTICONS[e.eventtype] || false;
if (!e.icon) {
e.icon = this.courseProvider.getModuleIconSrc(e.modulename);
e.moduleIcon = e.icon;
}
if (typeof e.duration != 'undefined') {
// It's an offline event, add some calculated data.
e.format = 1;
e.visible = 1;
if (e.duration == 1) {
e.timeduration = e.timedurationuntil - e.timestart;
} else if (e.duration == 2) {
e.timeduration = e.timedurationminutes * CoreConstants.SECONDS_MINUTE;
} else {
e.timeduration = 0;
}
}
}
/**
* Get options (name & value) for each allowed event type.
*
* @param {any} eventTypes Result of getAllowedEventTypes.
* @return {{name: string, value: string}[]} Options.
*/
getEventTypeOptions(eventTypes: any): {name: string, value: string}[] {
const options = [];
if (eventTypes.user) {
options.push({name: 'core.user', value: AddonCalendarProvider.TYPE_USER});
}
if (eventTypes.group) {
options.push({name: 'core.group', value: AddonCalendarProvider.TYPE_GROUP});
}
if (eventTypes.course) {
options.push({name: 'core.course', value: AddonCalendarProvider.TYPE_COURSE});
}
if (eventTypes.category) {
options.push({name: 'core.category', value: AddonCalendarProvider.TYPE_CATEGORY});
}
if (eventTypes.site) {
options.push({name: 'core.site', value: AddonCalendarProvider.TYPE_SITE});
}
return options;
}
/**
* Get the month "id" (year + month).
*
* @param {number} year Year.
* @param {number} month Month.
* @return {string} The "id".
*/
getMonthId(year: number, month: number): string {
return year + '#' + month;
}
/**
* Check if the data of an event has changed.
*
* @param {any} data Current data.
* @param {any} [original] Original data.
* @return {boolean} True if data has changed, false otherwise.
*/
hasEventDataChanged(data: any, original?: any): boolean {
if (!original) {
// There is no original data, assume it hasn't changed.
return false;
}
// Check the fields that don't depend on any other.
if (data.name != original.name || data.timestart != original.timestart || data.eventtype != original.eventtype ||
data.description != original.description || data.location != original.location ||
data.duration != original.duration || data.repeat != original.repeat) {
return true;
}
// Check data that depends on eventtype.
if ((data.eventtype == AddonCalendarProvider.TYPE_CATEGORY && data.categoryid != original.categoryid) ||
(data.eventtype == AddonCalendarProvider.TYPE_COURSE && data.courseid != original.courseid) ||
(data.eventtype == AddonCalendarProvider.TYPE_GROUP && data.groupcourseid != original.groupcourseid &&
data.groupid != original.groupid)) {
return true;
}
// Check data that depends on duration.
if ((data.duration == 1 && data.timedurationuntil != original.timedurationuntil) ||
(data.duration == 2 && data.timedurationminutes != original.timedurationminutes)) {
return true;
}
if (data.repeat && data.repeats != original.repeats) {
return true;
}
return false;
}
/**
* Check if an event should be displayed based on the filter.
*
* @param {any} event Event object.
* @param {number} courseId Course ID to filter.
* @param {number} categoryId Category ID the course belongs to.
* @param {any} categories Categories indexed by ID.
* @return {boolean} Whether it should be displayed.
*/
shouldDisplayEvent(event: any, courseId: number, categoryId: number, categories: any): boolean {
if (event.eventtype == 'user' || event.eventtype == 'site') {
// User or site event, display it.
return true;
}
if (event.eventtype == 'category') {
if (!event.categoryid || !Object.keys(categories).length) {
// We can't tell if the course belongs to the category, display them all.
return true;
}
if (event.categoryid == categoryId) {
// The event is in the same category as the course, display it.
return true;
}
// Check parent categories.
let category = categories[categoryId];
while (category) {
if (!category.parent) {
// Category doesn't have parent, stop.
break;
}
if (event.categoryid == category.parent) {
return true;
}
category = categories[category.parent];
}
return false;
}
// Show the event if it is from site home or if it matches the selected course.
return event.courseid === this.sitesProvider.getSiteHomeId() || event.courseid == courseId;
}
}