Vmeda.Online/src/addon/mod/chat/providers/chat.ts

393 lines
14 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 { TranslateService } from '@ngx-translate/core';
import { CoreSitesProvider } from '@providers/sites';
import { CoreUserProvider } from '@core/user/providers/user';
import { CoreCourseLogHelperProvider } from '@core/course/providers/log-helper';
import { CoreUtilsProvider } from '@providers/utils/utils';
import { CoreSite, CoreSiteWSPreSets } from '@classes/site';
/**
* Service that provides some features for chats.
*/
@Injectable()
export class AddonModChatProvider {
static COMPONENT = 'mmaModChat';
static POLL_INTERVAL = 4000;
protected ROOT_CACHE_KEY = 'AddonModChat:';
constructor(private sitesProvider: CoreSitesProvider, private userProvider: CoreUserProvider,
private logHelper: CoreCourseLogHelperProvider, protected utils: CoreUtilsProvider, private translate: TranslateService) {}
/**
* Get a chat.
*
* @param {number} courseId Course ID.
* @param {number} cmId Course module ID.
* @param {string} [siteId] Site ID. If not defined, current site.
* @return {Promise<any>} Promise resolved when the chat is retrieved.
*/
getChat(courseId: number, cmId: number, siteId?: string): Promise<any> {
return this.sitesProvider.getSite(siteId).then((site) => {
const params = {
courseids: [courseId]
};
const preSets: CoreSiteWSPreSets = {
cacheKey: this.getChatsCacheKey(courseId),
updateFrequency: CoreSite.FREQUENCY_RARELY
};
return site.read('mod_chat_get_chats_by_courses', params, preSets).then((response) => {
if (response.chats) {
const chat = response.chats.find((chat) => chat.coursemodule == cmId);
if (chat) {
return chat;
}
}
return Promise.reject(null);
});
});
}
/**
* Log the user into a chat room.
*
* @param {number} chatId Chat instance ID.
* @return {Promise<any>} Promise resolved when the WS is executed.
*/
loginUser(chatId: number): Promise<any> {
const params = {
chatid: chatId
};
return this.sitesProvider.getCurrentSite().write('mod_chat_login_user', params).then((response) => {
if (response.chatsid) {
return response.chatsid;
}
return Promise.reject(null);
});
}
/**
* Report a chat as being viewed.
*
* @param {number} id Chat instance ID.
* @param {string} [name] Name of the chat.
* @param {string} [siteId] Site ID. If not defined, current site.
* @return {Promise<any>} Promise resolved when the WS call is successful.
*/
logView(id: number, name?: string, siteId?: string): Promise<any> {
const params = {
chatid: id
};
return this.logHelper.logSingle('mod_chat_view_chat', params, AddonModChatProvider.COMPONENT, id, name, 'chat', {}, siteId);
}
/**
* Send a message to a chat.
*
* @param {number} sessionId Chat sessiond ID.
* @param {string} message Message text.
* @param {number} beepUserId Beep user ID.
* @return {Promise<any>} Promise resolved when the WS is executed.
*/
sendMessage(sessionId: number, message: string, beepUserId: number): Promise<any> {
const params = {
chatsid: sessionId,
messagetext: message,
beepid: beepUserId
};
return this.sitesProvider.getCurrentSite().write('mod_chat_send_chat_message', params).then((response) => {
if (response.messageid) {
return response.messageid;
}
return Promise.reject(null);
});
}
/**
* Get the latest messages from a chat session.
*
* @param {number} sessionId Chat sessiond ID.
* @param {number} lastTime Last time when messages were retrieved.
* @return {Promise<any>} Promise resolved when the WS is executed.
*/
getLatestMessages(sessionId: number, lastTime: number): Promise<any> {
const params = {
chatsid: sessionId,
chatlasttime: lastTime
};
/* We use write to not use cache. It doesn't make sense to store the messages in cache
because we won't be able to retireve them if AddonModChatProvider.loginUser fails. */
return this.sitesProvider.getCurrentSite().write('mod_chat_get_chat_latest_messages', params);
}
/**
* Get user data for messages since they only have userid.
*
* @param {any[]} messages Messages to get the user data for.
* @param {number} courseId ID of the course the messages belong to.
* @return {Promise<any>} Promise always resolved with the formatted messages.
*/
getMessagesUserData(messages: any[], courseId: number): Promise<any> {
const promises = messages.map((message) => {
return this.userProvider.getProfile(message.userid, courseId, true).then((user) => {
message.userfullname = user.fullname;
message.userprofileimageurl = user.profileimageurl;
}).catch(() => {
// Error getting profile, most probably the user is deleted.
message.userfullname = this.translate.instant('core.deleteduser') + ' ' + message.userid;
});
});
return Promise.all(promises).then(() => {
return messages;
});
}
/**
* Get the actives users of a current chat.
*
* @param {number} sessionId Chat sessiond ID.
* @return {Promise<any>} Promise resolved when the WS is executed.
*/
getChatUsers(sessionId: number): Promise<any> {
const params = {
chatsid: sessionId
};
const preSets = {
getFromCache: false
};
return this.sitesProvider.getCurrentSite().read('mod_chat_get_chat_users', params, preSets);
}
/**
* Return whether WS for passed sessions are available.
*
* @param {string} [siteId] Site ID. If not defined, current site.
* @return {Promise<boolean>} Promise resolved with a boolean.
*/
areSessionsAvailable(siteId?: string): Promise<boolean> {
return this.sitesProvider.getSite(siteId).then((site) => {
return site.wsAvailable('mod_chat_get_sessions') && site.wsAvailable('mod_chat_get_session_messages');
});
}
/**
* Get chat sessions.
*
* @param {number} chatId Chat ID.
* @param {number} [groupId=0] Group ID, 0 means that the function will determine the user group.
* @param {boolean} [showAll=false] Whether to include incomplete sessions or not.
* @param {boolean} [ignoreCache=false] True if it should ignore cached data (it will always fail in offline or server down).
* @param {string} [siteId] Site ID. If not defined, current site.
* @return {Promise<any[]>} Promise resolved with the list of sessions.
* @since 3.5
*/
getSessions(chatId: number, groupId: number = 0, showAll: boolean = false, ignoreCache: boolean = false, siteId?: string):
Promise<any[]> {
return this.sitesProvider.getSite(siteId).then((site) => {
const params = {
chatid: chatId,
groupid: groupId,
showall: showAll ? 1 : 0
};
const preSets: CoreSiteWSPreSets = {
cacheKey: this.getSessionsCacheKey(chatId, groupId, showAll),
updateFrequency: CoreSite.FREQUENCY_SOMETIMES
};
if (ignoreCache) {
preSets.getFromCache = false;
preSets.emergencyCache = false;
}
return site.read('mod_chat_get_sessions', params, preSets).then((response) => {
if (!response || !response.sessions) {
return Promise.reject(null);
}
return response.sessions;
});
});
}
/**
* Get chat session messages.
*
* @param {number} chatId Chat ID.
* @param {number} sessionStart Session start time.
* @param {number} sessionEnd Session end time.
* @param {number} [groupId=0] Group ID, 0 means that the function will determine the user group.
* @param {boolean} [ignoreCache=false] True if it should ignore cached data (it will always fail in offline or server down).
* @param {string} [siteId] Site ID. If not defined, current site.
* @return {Promise<any[]>} Promise resolved with the list of messages.
* @since 3.5
*/
getSessionMessages(chatId: number, sessionStart: number, sessionEnd: number, groupId: number = 0, ignoreCache: boolean = false,
siteId?: string): Promise<any[]> {
return this.sitesProvider.getSite(siteId).then((site) => {
const params = {
chatid: chatId,
sessionstart: sessionStart,
sessionend: sessionEnd,
groupid: groupId
};
const preSets: CoreSiteWSPreSets = {
cacheKey: this.getSessionMessagesCacheKey(chatId, sessionStart, groupId),
updateFrequency: CoreSite.FREQUENCY_RARELY
};
if (ignoreCache) {
preSets.getFromCache = false;
preSets.emergencyCache = false;
}
return site.read('mod_chat_get_session_messages', params, preSets).then((response) => {
if (!response || !response.messages) {
return Promise.reject(null);
}
return response.messages;
});
});
}
/**
* Invalidate chats.
*
* @param {number} courseId Course ID.
* @return {Promise<any>} Promise resolved when the data is invalidated.
*/
invalidateChats(courseId: number): Promise<any> {
const site = this.sitesProvider.getCurrentSite();
return site.invalidateWsCacheForKey(this.getChatsCacheKey(courseId));
}
/**
* Invalidate chat sessions.
*
* @param {number} chatId Chat ID.
* @param {number} [groupId=0] Group ID, 0 means that the function will determine the user group.
* @param {boolean} [showAll=false] Whether to include incomplete sessions or not.
* @return {Promise<any>} Promise resolved when the data is invalidated.
*/
invalidateSessions(chatId: number, groupId: number = 0, showAll: boolean = false): Promise<any> {
const site = this.sitesProvider.getCurrentSite();
return site.invalidateWsCacheForKey(this.getSessionsCacheKey(chatId, groupId, showAll));
}
/**
* Invalidate all chat sessions.
*
* @param {number} chatId Chat ID.
* @return {Promise<any>} Promise resolved when the data is invalidated.
*/
invalidateAllSessions(chatId: number): Promise<any> {
const site = this.sitesProvider.getCurrentSite();
return site.invalidateWsCacheForKeyStartingWith(this.getSessionsCacheKeyPrefix(chatId));
}
/**
* Invalidate chat session messages.
*
* @param {number} chatId Chat ID.
* @param {number} sessionStart Session start time.
* @param {number} [groupId=0] Group ID, 0 means that the function will determine the user group.
* @return {Promise<any>} Promise resolved when the data is invalidated.
*/
invalidateSessionMessages(chatId: number, sessionStart: number, groupId: number = 0): Promise<any> {
const site = this.sitesProvider.getCurrentSite();
return site.invalidateWsCacheForKey(this.getSessionMessagesCacheKey(chatId, sessionStart, groupId));
}
/**
* Invalidate all chat session messages.
*
* @param {number} chatId Chat ID.
* @return {Promise<any>} Promise resolved when the data is invalidated.
*/
invalidateAllSessionMessages(chatId: number): Promise<any> {
const site = this.sitesProvider.getCurrentSite();
return site.invalidateWsCacheForKeyStartingWith(this.getSessionMessagesCacheKeyPrefix(chatId));
}
/**
* Get cache key for chats WS call.
*
* @param {number} courseId Course ID.
* @return {string} Cache key.
*/
protected getChatsCacheKey(courseId: number): string {
return this.ROOT_CACHE_KEY + 'chats:' + courseId;
}
/**
* Get cache key for sessions WS call.
*
* @param {number} chatId Chat ID.
* @param {number} groupId Goup ID, 0 means that the function will determine the user group.
* @param {boolean} showAll Whether to include incomplete sessions or not.
* @return {string} Cache key.
*/
protected getSessionsCacheKey(chatId: number, groupId: number, showAll: boolean): string {
return this.getSessionsCacheKeyPrefix(chatId) + groupId + ':' + (showAll ? 1 : 0);
}
/**
* Get cache key prefix for sessions WS call.
*
* @param {number} chatId Chat ID.
* @return {string} Cache key prefix.
*/
protected getSessionsCacheKeyPrefix(chatId: number): string {
return this.ROOT_CACHE_KEY + 'sessions:' + chatId + ':';
}
/**
* Get cache key for session messages WS call.
*
* @param {number} chatId Chat ID.
* @param {number} sessionStart Session start time.
* @param {number} groupId Group ID, 0 means that the function will determine the user group.
* @return {string} Cache key.
*/
protected getSessionMessagesCacheKey(chatId: number, sessionStart: number, groupId: number): string {
return this.getSessionMessagesCacheKeyPrefix(chatId) + sessionStart + ':' + groupId;
}
/**
* Get cache key prefix for session messages WS call.
*
* @param {number} chatId Chat ID.
* @return {string} Cache key prefix.
*/
protected getSessionMessagesCacheKeyPrefix(chatId: number): string {
return this.ROOT_CACHE_KEY + 'sessionsMessages:' + chatId + ':';
}
}