Vmeda.Online/src/core/features/course/classes/main-resource-component.ts

574 lines
20 KiB
TypeScript

// (C) Copyright 2015 Moodle Pty Ltd.
//
// 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 { DownloadStatus } from '@/core/constants';
import { OnInit, OnDestroy, Input, Output, EventEmitter, Component, Optional, Inject } from '@angular/core';
import { CoreAnyError } from '@classes/errors/error';
import { CoreNetwork } from '@services/network';
import { CoreSites } from '@services/sites';
import { CoreDomUtils } from '@services/utils/dom';
import { CoreTextErrorObject, CoreTextUtils } from '@services/utils/text';
import { CoreUtils } from '@services/utils/utils';
import { Translate } from '@singletons';
import { CoreEventObserver, CoreEvents } from '@singletons/events';
import { CoreLogger } from '@singletons/logger';
import { CoreCourseModuleSummaryComponent, CoreCourseModuleSummaryResult } from '../components/module-summary/module-summary';
import { CoreCourseContentsPage } from '../pages/contents/contents';
import { CoreCourse } from '../services/course';
import { CoreCourseHelper, CoreCourseModuleData } from '../services/course-helper';
import { CoreCourseModuleDelegate, CoreCourseModuleMainComponent } from '../services/module-delegate';
import { CoreCourseModulePrefetchDelegate } from '../services/module-prefetch-delegate';
import { CoreAnalytics, CoreAnalyticsEventType } from '@services/analytics';
import { CoreUrl } from '@singletons/url';
import { CoreTime } from '@singletons/time';
/**
* Result of a resource download.
*/
export type CoreCourseResourceDownloadResult = {
failed?: boolean; // Whether the download has failed.
error?: string | CoreTextErrorObject; // The error in case it failed.
};
/**
* Template class to easily create CoreCourseModuleMainComponent of resources (or activities without syncing).
*/
@Component({
template: '',
})
export class CoreCourseModuleMainResourceComponent implements OnInit, OnDestroy, CoreCourseModuleMainComponent {
@Input() module!: CoreCourseModuleData; // The module of the component.
@Input() courseId!: number; // Course ID the component belongs to.
@Output() dataRetrieved = new EventEmitter<unknown>(); // Called to notify changes the index page from the main component.
showLoading = true; // Whether to show loading.
component?: string; // Component name.
componentId?: number; // Component ID.
hasOffline = false; // Resources don't have any data to sync.
description?: string; // Module description.
pluginName?: string; // The plugin name without "mod_", e.g. assign or book.
protected fetchContentDefaultError = 'core.course.errorgetmodule'; // Default error to show when loading contents.
protected isCurrentView = false; // Whether the component is in the current view.
protected siteId?: string; // Current Site ID.
protected statusObserver?: CoreEventObserver; // Observer of package status. Only if setStatusListener is called.
currentStatus?: DownloadStatus; // The current status of the module. Only if setStatusListener is called.
downloadTimeReadable?: string; // Last download time in a readable format. Only if setStatusListener is called.
protected completionObserver?: CoreEventObserver;
protected logger: CoreLogger;
protected debouncedUpdateModule?: () => void; // Update the module after a certain time.
protected showCompletion = false; // Whether to show completion inside the activity.
protected displayDescription = true; // Wether to show Module description on module page, and not on summary or the contrary.
protected isDestroyed = false; // Whether the component is destroyed.
protected checkCompletionAfterLog = true; // Whether to check if completion has changed after calling logActivity.
protected finishSuccessfulFetch: () => void;
constructor(
@Optional() @Inject('') loggerName: string = 'CoreCourseModuleMainResourceComponent',
protected courseContentsPage?: CoreCourseContentsPage,
) {
this.logger = CoreLogger.getInstance(loggerName);
this.finishSuccessfulFetch = CoreTime.once(() => this.performFinishSuccessfulFetch());
}
/**
* @inheritdoc
*/
async ngOnInit(): Promise<void> {
this.siteId = CoreSites.getCurrentSiteId();
this.description = this.module.description;
this.componentId = this.module.id;
this.courseId = this.courseId || this.module.course;
this.showCompletion = !!CoreSites.getRequiredCurrentSite().isVersionGreaterEqualThan('3.11');
if (this.showCompletion) {
CoreCourseHelper.loadModuleOfflineCompletion(this.courseId, this.module);
this.completionObserver = CoreEvents.on(CoreEvents.COMPLETION_MODULE_VIEWED, async (data) => {
if (data && data.cmId == this.module.id) {
await CoreCourse.invalidateModule(this.module.id);
this.fetchModule();
}
});
this.debouncedUpdateModule = CoreUtils.debounce(() => {
this.fetchModule();
}, 10000);
}
}
/**
* Refresh the data.
*
* @param refresher Refresher.
* @param showErrors If show errors to the user of hide them.
* @returns Promise resolved when done.
*/
async doRefresh(refresher?: HTMLIonRefresherElement | null, showErrors = false): Promise<void> {
if (!this.module) {
// Module can be undefined if course format changes from single activity to weekly/topics.
return;
}
// If it's a single activity course and the refresher is displayed within the component,
// call doRefresh on the section page to refresh the course data.
if (this.courseContentsPage && !CoreCourseModuleDelegate.displayRefresherInSingleActivity(this.module.modname)) {
await CoreUtils.ignoreErrors(this.courseContentsPage.doRefresh());
}
await CoreUtils.ignoreErrors(this.refreshContent(true, showErrors));
refresher?.complete();
}
/**
* Perform the refresh content function.
*
* @param sync If the refresh needs syncing.
* @param showErrors Wether to show errors to the user or hide them.
* @returns Resolved when done.
*/
// eslint-disable-next-line @typescript-eslint/no-unused-vars
protected async refreshContent(sync: boolean = false, showErrors: boolean = false): Promise<void> {
if (!this.module) {
// This can happen if course format changes from single activity to weekly/topics.
return;
}
await CoreUtils.ignoreErrors(Promise.all([
this.invalidateContent(),
this.showCompletion ? CoreCourse.invalidateModule(this.module.id) : undefined,
]));
if (this.showCompletion) {
this.fetchModule();
}
await this.loadContent(true);
}
/**
* Perform the invalidate content function.
*
* @returns Resolved when done.
*/
protected async invalidateContent(): Promise<void> {
return;
}
/**
* Download the component contents.
*
* @param refresh Whether we're refreshing data.
* @returns Promise resolved when done.
*/
// eslint-disable-next-line @typescript-eslint/no-unused-vars
protected async fetchContent(refresh?: boolean): Promise<void> {
return;
}
/**
* Loads the component contents and shows the corresponding error.
*
* @param refresh Whether we're refreshing data.
* @returns Promise resolved when done.
*/
protected async loadContent(refresh?: boolean): Promise<void> {
if (!this.module) {
// This can happen if course format changes from single activity to weekly/topics.
return;
}
try {
await this.fetchContent(refresh);
this.finishSuccessfulFetch();
} catch (error) {
if (!refresh && !CoreSites.getCurrentSite()?.isOfflineDisabled() && this.isNotFoundError(error)) {
// Module not found, retry without using cache.
return await this.refreshContent();
}
CoreDomUtils.showErrorModalDefault(error, this.fetchContentDefaultError, true);
} finally {
this.showLoading = false;
}
}
/**
* Check if an error is a "module not found" error.
*
* @param error Error.
* @returns Whether the error is a "module not found" error.
*/
protected isNotFoundError(error: CoreAnyError): boolean {
return CoreTextUtils.getErrorMessageFromError(error) === Translate.instant('core.course.modulenotfound');
}
/**
* Updage package last downloaded.
*/
protected async getPackageLastDownloaded(): Promise<void> {
if (!this.module) {
return;
}
const lastDownloaded =
await CoreCourseHelper.getModulePackageLastDownloaded(this.module, this.component);
this.downloadTimeReadable = CoreTextUtils.ucFirst(lastDownloaded.downloadTimeReadable);
}
/**
* Check if the module is prefetched or being prefetched.
* To make it faster, just use the data calculated by setStatusListener.
*
* @returns If module has been prefetched.
*/
protected isPrefetched(): boolean {
return this.currentStatus !== DownloadStatus.NOT_DOWNLOADABLE &&
this.currentStatus !== DownloadStatus.DOWNLOADABLE_NOT_DOWNLOADED;
}
/**
* Get message about an error occurred while downloading files.
*
* @param error The specific error.
* @param multiLine Whether to put each message in a different paragraph or in a single line.
* @returns Error text message.
*/
protected getErrorDownloadingSomeFilesMessage(error: string | CoreTextErrorObject, multiLine?: boolean): string {
if (multiLine) {
return CoreTextUtils.buildSeveralParagraphsMessage([
Translate.instant('core.errordownloadingsomefiles'),
error,
]);
} else {
error = CoreTextUtils.getErrorMessageFromError(error) || '';
return Translate.instant('core.errordownloadingsomefiles') + (error ? ' ' + error : '');
}
}
/**
* Show an error occurred while downloading files.
*
* @param error The specific error.
*/
protected showErrorDownloadingSomeFiles(error: string | CoreTextErrorObject): void {
CoreDomUtils.showErrorModal(this.getErrorDownloadingSomeFilesMessage(error, true));
}
/**
* Displays some data based on the current status.
*
* @param status The current status.
* @param previousStatus The previous status. If not defined, there is no previous status.
*/
// eslint-disable-next-line @typescript-eslint/no-unused-vars
protected showStatus(status: DownloadStatus, previousStatus?: DownloadStatus): void {
// To be overridden.
}
/**
* Watch for changes on the status.
*
* @param refresh Whether we're refreshing data.
* @returns Promise resolved when done.
*/
protected async setStatusListener(refresh?: boolean): Promise<void> {
if (this.statusObserver === undefined) {
// Listen for changes on this module status.
this.statusObserver = CoreEvents.on(CoreEvents.PACKAGE_STATUS_CHANGED, (data) => {
if (data.componentId != this.module.id || data.component != this.component) {
return;
}
// The status has changed, update it.
const previousStatus = this.currentStatus;
this.currentStatus = data.status;
this.getPackageLastDownloaded();
this.showStatus(this.currentStatus, previousStatus);
}, this.siteId);
} else if (!refresh) {
return;
}
if (refresh) {
await CoreUtils.ignoreErrors(CoreCourseModulePrefetchDelegate.invalidateCourseUpdates(this.courseId));
}
// Also, get the current status.
const status = await CoreCourseModulePrefetchDelegate.getModuleStatus(this.module, this.courseId, undefined, refresh);
this.currentStatus = status;
this.getPackageLastDownloaded();
this.showStatus(status);
}
/**
* Download a resource if needed.
* If the download call fails the promise won't be rejected, but the error will be included in the returned object.
* If module.contents cannot be loaded then the Promise will be rejected.
*
* @param refresh Whether we're refreshing data.
* @returns Promise resolved when done.
*/
protected async downloadResourceIfNeeded(
refresh?: boolean,
contentsAlreadyLoaded?: boolean,
): Promise<CoreCourseResourceDownloadResult> {
const result: CoreCourseResourceDownloadResult = {
failed: false,
};
// Get module status to determine if it needs to be downloaded.
await this.setStatusListener(refresh);
if (this.currentStatus !== DownloadStatus.DOWNLOADED) {
// Download content. This function also loads module contents if needed.
try {
await CoreCourseModulePrefetchDelegate.downloadModule(this.module, this.courseId);
// If we reach here it means the download process already loaded the contents, no need to do it again.
contentsAlreadyLoaded = true;
} catch (error) {
// Mark download as failed but go on since the main files could have been downloaded.
result.failed = true;
result.error = error;
}
}
if (!this.module.contents?.length || (refresh && !contentsAlreadyLoaded)) {
// Try to load the contents.
const ignoreCache = refresh && CoreNetwork.isOnline();
try {
await CoreCourse.loadModuleContents(this.module, undefined, undefined, false, ignoreCache);
} catch (error) {
// Error loading contents. If we ignored cache, try to get the cached value.
if (ignoreCache && !this.module.contents) {
await CoreCourse.loadModuleContents(this.module);
} else if (!this.module.contents) {
// Not able to load contents, throw the error.
throw error;
}
}
}
return result;
}
/**
* The completion of the modules has changed.
*
* @returns Promise resolved when done.
*/
async onCompletionChange(): Promise<void> {
// Update the module data after a while.
this.debouncedUpdateModule?.();
}
/**
* Fetch module.
*
* @returns Promise resolved when done.
*/
protected async fetchModule(): Promise<void> {
const previousCompletion = this.module.completiondata;
const module = await CoreCourse.getModule(this.module.id, this.courseId);
await CoreCourseHelper.loadModuleOfflineCompletion(this.courseId, module);
this.module = module;
// @todo: Temporary fix to update course page completion. This should be refactored in MOBILE-4326.
if (previousCompletion && module.completiondata && previousCompletion.state !== module.completiondata.state) {
await CoreUtils.ignoreErrors(CoreCourse.invalidateSections(this.courseId));
CoreEvents.trigger(CoreEvents.COMPLETION_MODULE_VIEWED, {
courseId: this.courseId,
cmId: module.completiondata.cmid,
});
}
}
/**
* Opens a module summary page.
*/
async openModuleSummary(): Promise<void> {
if (!this.module) {
return;
}
const data = await CoreDomUtils.openSideModal<CoreCourseModuleSummaryResult>({
component: CoreCourseModuleSummaryComponent,
componentProps: {
moduleId: this.module.id,
module: this.module,
description: this.description,
component: this.component,
courseId: this.courseId,
hasOffline: this.hasOffline,
displayOptions: {
// Show description on summary if not shown on the page.
displayDescription: !this.displayDescription,
},
},
});
if (data) {
if (!this.showLoading && (data.action == 'refresh' || data.action == 'sync')) {
this.showLoading = true;
try {
await this.doRefresh(undefined, data.action == 'sync');
} finally {
this.showLoading = false;
}
}
}
}
/**
* Finish first successful fetch.
*
* @returns Promise resolved when done.
*/
protected async performFinishSuccessfulFetch(): Promise<void> {
this.storeModuleViewed();
// Log activity now.
try {
await this.logActivity();
if (this.checkCompletionAfterLog) {
this.checkCompletion();
}
} catch {
// Ignore errors.
}
}
/**
* Store module as viewed.
*
* @returns Promise resolved when done.
*/
protected async storeModuleViewed(): Promise<void> {
await CoreCourse.storeModuleViewed(this.courseId, this.module.id, { sectionId: this.module.section });
}
/**
* Log activity.
*
* @returns Promise resolved when done.
*/
protected async logActivity(): Promise<void> {
// To be overridden.
}
/**
* Log activity view in analytics.
*
* @param wsName Name of the WS used.
* @param options Other data to send.
* @returns Promise resolved when done.
*/
async analyticsLogEvent(
wsName: string,
options: AnalyticsLogEventOptions = {},
): Promise<void> {
let url: string | undefined;
if (options.sendUrl === true || options.sendUrl === undefined) {
if (typeof options.url === 'string') {
url = options.url;
} else if (this.pluginName) {
// Use default value.
url = CoreUrl.addParamsToUrl(`/mod/${this.pluginName}/view.php?id=${this.module.id}`, options.data);
}
}
await CoreAnalytics.logEvent({
type: CoreAnalyticsEventType.VIEW_ITEM,
ws: wsName,
name: options.name || this.module.name,
data: { id: this.module.instance, category: this.pluginName, ...options.data },
url,
});
}
/**
* Check the module completion.
*/
protected checkCompletion(): void {
CoreCourse.checkModuleCompletion(this.courseId, this.module.completiondata);
}
/**
* @inheritdoc
*/
ngOnDestroy(): void {
this.isDestroyed = true;
this.statusObserver?.off();
this.completionObserver?.off();
}
/**
* User entered the page that contains the component. This function should be called by the page that contains this component.
*/
ionViewDidEnter(): void {
this.isCurrentView = true;
}
/**
* User left the page that contains the component. This function should be called by the page that contains this component.
*/
ionViewDidLeave(): void {
this.isCurrentView = false;
}
/**
* User will enter the page that contains the component. This function should be called by the page that contains the component.
*/
ionViewWillEnter(): void {
// To be overridden.
}
/**
* User will leave the page that contains the component. This function should be called by the page that contains the component.
*/
ionViewWillLeave(): void {
// To be overridden.
}
}
type AnalyticsLogEventOptions = {
data?: Record<string, unknown>; // Other data to send.
name?: string; // Name to send, defaults to activity name.
url?: string; // URL to use. If not set and sendUrl is true, a default value will be used.
sendUrl?: boolean; // Whether to pass a URL to analytics. Defaults to true.
};