297 lines
10 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 { Injectable } from '@angular/core';
import { CoreComments } from '@features/comments/services/comments';
import { CoreCourseActivityPrefetchHandlerBase } from '@features/course/classes/activity-prefetch-handler';
import { CoreCourseCommonModWSOptions, CoreCourse, CoreCourseAnyModuleData } from '@features/course/services/course';
import { CoreCourses } from '@features/courses/services/courses';
import { CoreFilepool } from '@services/filepool';
import { CoreGroup, CoreGroups } from '@services/groups';
import { CoreSitesCommonWSOptions, CoreSites, CoreSitesReadingStrategy } from '@services/sites';
import { CoreTimeUtils } from '@services/utils/time';
import { CoreUtils } from '@services/utils/utils';
import { CoreWSFile } from '@services/ws';
import { makeSingleton } from '@singletons';
import { AddonModDataProvider, AddonModDataEntry, AddonModData, AddonModDataData } from '../data';
import { AddonModDataSync, AddonModDataSyncResult } from '../data-sync';
import { ContextLevel } from '@/core/constants';
/**
* Handler to prefetch databases.
*/
@Injectable({ providedIn: 'root' })
export class AddonModDataPrefetchHandlerService extends CoreCourseActivityPrefetchHandlerBase {
name = 'AddonModData';
modName = 'data';
component = AddonModDataProvider.COMPONENT;
updatesNames = /^configuration$|^.*files$|^entries$|^gradeitems$|^outcomes$|^comments$|^ratings/;
/**
* Retrieves all the entries for all the groups and then returns only unique entries.
*
* @param dataId Database Id.
* @param groups Array of groups in the activity.
* @param options Other options.
* @returns All unique entries.
*/
protected async getAllUniqueEntries(
dataId: number,
groups: CoreGroup[],
options: CoreSitesCommonWSOptions = {},
): Promise<AddonModDataEntry[]> {
const promises = groups.map((group) => AddonModData.fetchAllEntries(dataId, {
groupId: group.id,
...options, // Include all options.
}));
const responses = await Promise.all(promises);
const uniqueEntries: Record<number, AddonModDataEntry> = {};
responses.forEach((groupEntries) => {
groupEntries.forEach((entry) => {
uniqueEntries[entry.id] = entry;
});
});
return CoreUtils.objectToArray(uniqueEntries);
}
/**
* Helper function to get all database info just once.
*
* @param module Module to get the files.
* @param courseId Course ID the module belongs to.
* @param omitFail True to always return even if fails. Default false.
* @param options Other options.
* @returns Promise resolved with the info fetched.
*/
protected async getDatabaseInfoHelper(
module: CoreCourseAnyModuleData,
courseId: number,
omitFail: boolean,
options: CoreCourseCommonModWSOptions = {},
): Promise<{ database: AddonModDataData; groups: CoreGroup[]; entries: AddonModDataEntry[]; files: CoreWSFile[]}> {
let groups: CoreGroup[] = [];
let entries: AddonModDataEntry[] = [];
let files: CoreWSFile[] = [];
options.cmId = options.cmId || module.id;
options.siteId = options.siteId || CoreSites.getCurrentSiteId();
const database = await AddonModData.getDatabase(courseId, module.id, options);
try {
files = this.getIntroFilesFromInstance(module, database);
const groupInfo = await CoreGroups.getActivityGroupInfo(module.id, false, undefined, options.siteId);
if (!groupInfo.groups || groupInfo.groups.length == 0) {
groupInfo.groups = [{ id: 0, name: '' }];
}
groups = groupInfo.groups || [];
entries = await this.getAllUniqueEntries(database.id, groups, options);
files = files.concat(this.getEntriesFiles(entries));
return {
database,
groups,
entries,
files,
};
} catch (error) {
if (omitFail) {
// Any error, return the info we have.
return {
database,
groups,
entries,
files,
};
}
throw error;
}
}
/**
* Returns the file contained in the entries.
*
* @param entries List of entries to get files from.
* @returns List of files.
*/
protected getEntriesFiles(entries: AddonModDataEntry[]): CoreWSFile[] {
let files: CoreWSFile[] = [];
entries.forEach((entry) => {
CoreUtils.objectToArray(entry.contents).forEach((content) => {
files = files.concat(<CoreWSFile[]>content.files);
});
});
return files;
}
/**
* @inheritdoc
*/
async getFiles(module: CoreCourseAnyModuleData, courseId: number): Promise<CoreWSFile[]> {
return this.getDatabaseInfoHelper(module, courseId, true).then((info) => info.files);
}
/**
* @inheritdoc
*/
async getIntroFiles(module: CoreCourseAnyModuleData, courseId: number): Promise<CoreWSFile[]> {
const data = await CoreUtils.ignoreErrors(AddonModData.getDatabase(courseId, module.id));
return this.getIntroFilesFromInstance(module, data);
}
/**
* @inheritdoc
*/
async invalidateContent(moduleId: number, courseId: number): Promise<void> {
await AddonModData.invalidateContent(moduleId, courseId);
}
/**
* @inheritdoc
*/
async invalidateModule(module: CoreCourseAnyModuleData, courseId: number): Promise<void> {
const promises: Promise<void>[] = [];
promises.push(AddonModData.invalidateDatabaseData(courseId));
promises.push(AddonModData.invalidateDatabaseAccessInformationData(module.instance));
await Promise.all(promises);
}
/**
* @inheritdoc
*/
async isDownloadable(module: CoreCourseAnyModuleData, courseId: number): Promise<boolean> {
const database = await AddonModData.getDatabase(courseId, module.id, {
readingStrategy: CoreSitesReadingStrategy.PREFER_CACHE,
});
const accessData = await AddonModData.getDatabaseAccessInformation(database.id, { cmId: module.id });
// Check if database is restricted by time.
if (!accessData.timeavailable) {
const time = CoreTimeUtils.timestamp();
// It is restricted, checking times.
if (database.timeavailablefrom && time < database.timeavailablefrom) {
return false;
}
if (database.timeavailableto && time > database.timeavailableto) {
return false;
}
}
return true;
}
/**
* @inheritdoc
*/
prefetch(module: CoreCourseAnyModuleData, courseId: number): Promise<void> {
return this.prefetchPackage(module, courseId, (siteId) => this.prefetchDatabase(module, courseId, siteId));
}
/**
* Prefetch a database.
*
* @param module Module.
* @param courseId Course ID the module belongs to.
* @param siteId Site ID.
* @returns Promise resolved when done.
*/
protected async prefetchDatabase(module: CoreCourseAnyModuleData, courseId: number, siteId: string): Promise<void> {
const options = {
cmId: module.id,
readingStrategy: CoreSitesReadingStrategy.ONLY_NETWORK,
siteId,
};
const info = await this.getDatabaseInfoHelper(module, courseId, false, options);
// Prefetch the database data.
const database = info.database;
const commentsEnabled = CoreComments.areCommentsEnabledInSite();
const promises: Promise<unknown>[] = [];
promises.push(AddonModData.getFields(database.id, options));
promises.push(CoreFilepool.addFilesToQueue(siteId, info.files, this.component, module.id));
info.groups.forEach((group) => {
promises.push(AddonModData.getDatabaseAccessInformation(database.id, {
groupId: group.id,
...options, // Include all options.
}));
});
info.entries.forEach((entry) => {
promises.push(AddonModData.getEntry(database.id, entry.id, options));
if (commentsEnabled && database.comments) {
promises.push(CoreComments.getComments(
ContextLevel.MODULE,
database.coursemodule,
'mod_data',
entry.id,
'database_entry',
0,
siteId,
));
}
});
// Add Basic Info to manage links.
promises.push(CoreCourse.getModuleBasicInfoByInstance(database.id, 'data', { siteId }));
// Get course data, needed to determine upload max size if it's configured to be course limit.
promises.push(CoreUtils.ignoreErrors(CoreCourses.getCourseByField('id', courseId, siteId)));
await Promise.all(promises);
}
/**
* Sync a module.
*
* @param module Module.
* @param courseId Course ID the module belongs to
* @param siteId Site ID. If not defined, current site.
* @returns Promise resolved when done.
*/
async sync(module: CoreCourseAnyModuleData, courseId: number, siteId?: string): Promise<AddonModDataSyncResult> {
const promises = [
AddonModDataSync.syncDatabase(module.instance, siteId),
AddonModDataSync.syncRatings(module.id, true, siteId),
];
const results = await Promise.all(promises);
return results.reduce((a, b) => ({
updated: a.updated || b.updated,
warnings: (a.warnings || []).concat(b.warnings || []),
}), { updated: false , warnings: [] });
}
}
export const AddonModDataPrefetchHandler = makeSingleton(AddonModDataPrefetchHandlerService);