2019-01-25 09:05:23 +01:00

325 lines
13 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 { CoreAppProvider } from '@providers/app';
import { CoreLoggerProvider } from '@providers/logger';
import { CoreUtilsProvider } from '@providers/utils/utils';
import { CoreSitesProvider } from '@providers/sites';
import { CoreSiteWSPreSets } from '@classes/site';
import { TranslateService } from '@ngx-translate/core';
import { CoreUserProvider } from '@core/user/providers/user';
import { AddonNotesOfflineProvider } from './notes-offline';
/**
* Service to handle notes.
*/
@Injectable()
export class AddonNotesProvider {
protected ROOT_CACHE_KEY = 'mmaNotes:';
protected logger;
constructor(logger: CoreLoggerProvider, private sitesProvider: CoreSitesProvider, private appProvider: CoreAppProvider,
private utils: CoreUtilsProvider, private translate: TranslateService, private userProvider: CoreUserProvider,
private notesOffline: AddonNotesOfflineProvider) {
this.logger = logger.getInstance('AddonNotesProvider');
}
/**
* Add a note.
*
* @param {number} userId User ID of the person to add the note.
* @param {number} courseId Course ID where the note belongs.
* @param {string} publishState Personal, Site or Course.
* @param {string} noteText The note text.
* @param {string} [siteId] Site ID. If not defined, current site.
* @return {Promise<boolean>} Promise resolved with boolean: true if note was sent to server, false if stored in device.
*/
addNote(userId: number, courseId: number, publishState: string, noteText: string, siteId?: string): Promise<boolean> {
siteId = siteId || this.sitesProvider.getCurrentSiteId();
// Convenience function to store a note to be synchronized later.
const storeOffline = (): Promise<any> => {
return this.notesOffline.saveNote(userId, courseId, publishState, noteText, siteId).then(() => {
return false;
});
};
if (!this.appProvider.isOnline()) {
// App is offline, store the note.
return storeOffline();
}
// Send note to server.
return this.addNoteOnline(userId, courseId, publishState, noteText, siteId).then(() => {
return true;
}).catch((error) => {
if (this.utils.isWebServiceError(error)) {
// It's a WebService error, the user cannot send the message so don't store it.
return Promise.reject(error);
}
// Error sending note, store it to retry later.
return storeOffline();
});
}
/**
* Add a note. It will fail if offline or cannot connect.
*
* @param {number} userId User ID of the person to add the note.
* @param {number} courseId Course ID where the note belongs.
* @param {string} publishState Personal, Site or Course.
* @param {string} noteText The note text.
* @param {string} [siteId] Site ID. If not defined, current site.
* @return {Promise<any>} Promise resolved when added, rejected otherwise.
*/
addNoteOnline(userId: number, courseId: number, publishState: string, noteText: string, siteId?: string): Promise<any> {
const notes = [
{
courseid: courseId,
format: 1,
publishstate: publishState,
text: noteText,
userid: userId
}
];
return this.addNotesOnline(notes, siteId).then((response) => {
if (response && response[0] && response[0].noteid === -1) {
// There was an error, and it should be translated already.
return Promise.reject(this.utils.createFakeWSError(response[0].errormessage));
}
// A note was added, invalidate the course notes.
return this.invalidateNotes(courseId, undefined, siteId).catch(() => {
// Ignore errors.
});
});
}
/**
* Add several notes. It will fail if offline or cannot connect.
*
* @param {any[]} notes Notes to save.
* @param {string} [siteId] Site ID. If not defined, current site.
* @return {Promise<any>} Promise resolved when added, rejected otherwise. Promise resolved doesn't mean that notes
* have been added, the resolve param can contain errors for notes not sent.
*/
addNotesOnline(notes: any[], siteId?: string): Promise<any> {
if (!notes || !notes.length) {
return Promise.resolve();
}
return this.sitesProvider.getSite(siteId).then((site) => {
const data = {
notes: notes
};
return site.write('core_notes_create_notes', data);
});
}
/**
* Returns whether or not the notes plugin is enabled for a certain site.
*
* This method is called quite often and thus should only perform a quick
* check, we should not be calling WS from here.
*
* @param {string} [siteId] Site ID. If not defined, current site.
* @return {Promise<boolean>} Promise resolved with true if enabled, resolved with false or rejected otherwise.
*/
isPluginEnabled(siteId?: string): Promise<boolean> {
return this.sitesProvider.getSite(siteId).then((site) => {
return site.canUseAdvancedFeature('enablenotes');
});
}
/**
* Returns whether or not the add note plugin is enabled for a certain course.
*
* @param {number} courseId ID of the course.
* @param {string} [siteId] Site ID. If not defined, current site.
* @return {Promise<boolean>} Promise resolved with true if enabled, resolved with false or rejected otherwise.
*/
isPluginAddNoteEnabledForCourse(courseId: number, siteId?: string): Promise<boolean> {
return this.sitesProvider.getSite(siteId).then((site) => {
// The only way to detect if it's enabled is to perform a WS call.
// We use an invalid user ID (-1) to avoid saving the note if the user has permissions.
const data = {
notes: [
{
userid: -1,
publishstate: 'personal',
courseid: courseId,
text: '',
format: 1
}
]
};
/* Use .read to cache data and be able to check it in offline. This means that, if a user loses the capabilities
to add notes, he'll still see the option in the app. */
return this.utils.promiseWorks(site.read('core_notes_create_notes', data));
});
}
/**
* Returns whether or not the read notes plugin is enabled for a certain course.
*
* @param {number} courseId ID of the course.
* @param {string} [siteId] Site ID. If not defined, current site.
* @return {Promise<boolean>} Promise resolved with true if enabled, resolved with false or rejected otherwise.
*/
isPluginViewNotesEnabledForCourse(courseId: number, siteId?: string): Promise<boolean> {
return this.utils.promiseWorks(this.getNotes(courseId, undefined, false, true, siteId));
}
/**
* Get prefix cache key for course notes.
*
* @param {number} courseId ID of the course to get the notes from.
* @return {string} Cache key.
*/
getNotesPrefixCacheKey(courseId: number): string {
return this.ROOT_CACHE_KEY + 'notes:' + courseId + ':';
}
/**
* Get the cache key for the get notes call.
*
* @param {number} courseId ID of the course to get the notes from.
* @param {number} [userId] ID of the user to get the notes from if requested.
* @return {string} Cache key.
*/
getNotesCacheKey(courseId: number, userId?: number): string {
return this.getNotesPrefixCacheKey(courseId) + (userId ? userId : '');
}
/**
* Get users notes for a certain site, course and personal notes.
*
* @param {number} courseId ID of the course to get the notes from.
* @param {number} [userId] ID of the user to get the notes from if requested.
* @param {boolean} [ignoreCache] True when we should not get the value from the cache.
* @param {boolean} [onlyOnline] True to return only online notes, false to return both online and offline.
* @param {string} [siteId] Site ID. If not defined, current site.
* @return {Promise<any>} Promise to be resolved when the notes are retrieved.
*/
getNotes(courseId: number, userId?: number, ignoreCache?: boolean, onlyOnline?: boolean, siteId?: string): Promise<any> {
this.logger.debug('Get notes for course ' + courseId);
return this.sitesProvider.getSite(siteId).then((site) => {
const data = {
courseid: courseId
};
if (userId) {
data['userid'] = userId;
}
const preSets: CoreSiteWSPreSets = {
cacheKey: this.getNotesCacheKey(courseId, userId)
};
if (ignoreCache) {
preSets.getFromCache = false;
preSets.emergencyCache = false;
}
return site.read('core_notes_get_course_notes', data, preSets).then((notes) => {
if (onlyOnline) {
return notes;
}
// Get offline notes and add them to the list.
return this.notesOffline.getNotesForCourseAndUser(courseId, userId, siteId).then((offlineNotes) => {
offlineNotes.forEach((note) => {
const fieldName = note.publishstate + 'notes';
if (!notes[fieldName]) {
notes[fieldName] = [];
}
note.offline = true;
// Add note to the start of array since last notes are shown first.
notes[fieldName].unshift(note);
});
return notes;
});
});
});
}
/**
* Get user data for notes since they only have userid.
*
* @param {any[]} notes Notes to get the data for.
* @param {number} courseId ID of the course the notes belong to.
* @return {Promise<any>} Promise always resolved. Resolve param is the formatted notes.
*/
getNotesUserData(notes: any[], courseId: number): Promise<any> {
const promises = notes.map((note) => {
// Get the user profile to retrieve the user image.
return this.userProvider.getProfile(note.userid, note.courseid, true).then((user) => {
note.userfullname = user.fullname;
note.userprofileimageurl = user.profileimageurl || null;
}).catch(() => {
note.userfullname = this.translate.instant('addon.notes.userwithid', {id: note.userid});
});
});
return Promise.all(promises).then(() => {
return notes;
});
}
/**
* Invalidate get notes WS call.
*
* @param {number} courseId Course ID.
* @param {number} [userId] User ID if needed.
* @param {string} [siteId] Site ID. If not defined, current site.
* @return {Promise<any>} Promise resolved when data is invalidated.
*/
invalidateNotes(courseId: number, userId?: number, siteId?: string): Promise<any> {
return this.sitesProvider.getSite(siteId).then((site) => {
if (userId) {
return site.invalidateWsCacheForKey(this.getNotesCacheKey(courseId, userId));
}
return site.invalidateWsCacheForKeyStartingWith(this.getNotesPrefixCacheKey(courseId));
});
}
/**
* Report notes as being viewed.
*
* @param {number} courseId ID of the course.
* @param {number} [userId] User ID if needed.
* @param {string} [siteId] Site ID. If not defined, current site.
* @return {Promise<any>} Promise resolved when the WS call is successful.
*/
logView(courseId: number, userId?: number, siteId?: string): Promise<any> {
return this.sitesProvider.getSite(siteId).then((site) => {
const params = {
courseid: courseId,
userid: userId || 0
};
return site.write('core_notes_view_notes', params);
});
}
}