111 lines
3.9 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';
/**
* Service to handle badges.
*/
@Injectable()
export class AddonBadgesProvider {
protected logger;
protected ROOT_CACHE_KEY = 'mmaBadges:';
constructor(logger: CoreLoggerProvider, private sitesProvider: CoreSitesProvider) {
this.logger = logger.getInstance('AddonBadgesProvider');
}
/**
* Returns whether or not the badge 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, false otherwise.
*/
isPluginEnabled(siteId?: string): Promise<boolean> {
return this.sitesProvider.getSite(siteId).then((site) => {
if (!site.canUseAdvancedFeature('enablebadges')) {
return false;
} else if (!site.wsAvailable('core_course_get_user_navigation_options')) {
return false;
}
return true;
});
}
/**
* Get the cache key for the get badges call.
*
* @param {number} courseId ID of the course to get the badges from.
* @param {number} userId ID of the user to get the badges from.
* @return {string} Cache key.
*/
protected getBadgesCacheKey(courseId: number, userId: number): string {
return this.ROOT_CACHE_KEY + 'badges:' + courseId + ':' + userId;
}
/**
* Get issued badges for a certain user in a course.
*
* @param {number} courseId ID of the course to get the badges from.
* @param {number} userId ID of the user to get the badges from.
* @param {string} [siteId] Site ID. If not defined, current site.
* @return {Promise<any>}Promise to be resolved when the badges are retrieved.
*/
getUserBadges(courseId: number, userId: number, siteId?: string): Promise<any> {
this.logger.debug('Get badges for course ' + courseId);
return this.sitesProvider.getSite(siteId).then((site) => {
const data = {
courseid : courseId,
userid : userId
},
presets = {
cacheKey: this.getBadgesCacheKey(courseId, userId)
};
return site.read('core_badges_get_user_badges', data, presets).then((response) => {
if (response && response.badges) {
return response.badges;
} else {
return Promise.reject(null);
}
});
});
}
/**
* Invalidate get badges WS call.
*
* @param {number} courseId Course ID.
* @param {number} userId ID of the user to get the badges from.
* @param {string} [siteId] Site ID. If not defined, current site.
* @return {Promise<any>} Promise resolved when data is invalidated.
*/
invalidateUserBadges(courseId: number, userId: number, siteId?: string): Promise<any> {
return this.sitesProvider.getSite(siteId).then((site) => {
return site.invalidateWsCacheForKey(this.getBadgesCacheKey(courseId, userId));
});
}
}