mirror of
https://gitlab.com/comunic/comunicmobile
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425 lines
14 KiB
Dart
425 lines
14 KiB
Dart
import 'package:comunic/helpers/database/conversation_messages_database_helper.dart';
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import 'package:comunic/helpers/database/conversations_database_helper.dart';
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import 'package:comunic/helpers/users_helper.dart';
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import 'package:comunic/helpers/websocket_helper.dart';
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import 'package:comunic/lists/conversation_messages_list.dart';
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import 'package:comunic/lists/conversations_list.dart';
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import 'package:comunic/lists/users_list.dart';
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import 'package:comunic/models/api_request.dart';
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import 'package:comunic/models/api_response.dart';
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import 'package:comunic/models/conversation.dart';
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import 'package:comunic/models/conversation_message.dart';
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import 'package:comunic/models/displayed_content.dart';
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import 'package:comunic/models/new_conversation_message.dart';
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import 'package:comunic/utils/account_utils.dart';
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import 'package:meta/meta.dart';
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/// Conversation helper
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///
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/// @author Pierre HUBERT
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enum SendMessageResult { SUCCESS, MESSAGE_REJECTED, FAILED }
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class ConversationsHelper {
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static final _registeredConversations = Map<int, int>();
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final ConversationsDatabaseHelper _conversationsDatabaseHelper =
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ConversationsDatabaseHelper();
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final ConversationMessagesDatabaseHelper _conversationMessagesDatabaseHelper =
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ConversationMessagesDatabaseHelper();
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/// Create a new conversation
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///
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/// Return the ID of the newly created conversation or -1 in case of failure
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Future<int> createConversation(Conversation settings) async {
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final response =
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await APIRequest(uri: "conversations/create", needLogin: true, args: {
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"name": settings.hasName ? settings.name : "false",
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"follow": settings.following ? "true" : "false",
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"users": settings.members.join(","),
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}).addBool("canEveryoneAddMembers", settings.canEveryoneAddMembers).exec();
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if (response.code != 200) return -1;
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return response.getObject()["conversationID"];
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}
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/// Update an existing conversation
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///
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/// Returns a boolean depending of the success of the operation
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Future<bool> updateConversation(Conversation settings) async {
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final request =
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APIRequest(uri: "conversations/updateSettings", needLogin: true, args: {
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"conversationID": settings.id.toString(),
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"following": settings.following ? "true" : "false"
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});
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if (settings.isOwner || settings.canEveryoneAddMembers)
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request.addString("members", settings.members.join(","));
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// Update all conversation settings, if possible
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if (settings.isOwner) {
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request.addString("name", settings.hasName ? settings.name : "false");
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request.addBool("canEveryoneAddMembers", settings.canEveryoneAddMembers);
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}
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final response = await request.exec();
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if (response.code != 200) return false;
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//Delete old conversation entry from the database
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await _conversationsDatabaseHelper.delete(settings.id);
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// Success
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return true;
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}
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/// Delete a conversation specified by its [id]
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Future<bool> deleteConversation(int id) async {
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final response = await APIRequest(
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uri: "conversations/delete",
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needLogin: true,
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args: {
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"conversationID": id.toString(),
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},
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).exec();
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return response.code == 200;
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}
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/// Download the list of conversations from the server
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Future<ConversationsList> downloadList() async {
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final response =
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await APIRequest(uri: "conversations/getList", needLogin: true).exec();
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if (response.code != 200) return null;
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try {
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ConversationsList list = ConversationsList();
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response.getArray().forEach((f) => list.add(apiToConversation(f)));
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// Update the database
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await _conversationsDatabaseHelper.clearTable();
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await _conversationsDatabaseHelper.insertAll(list);
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return list;
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} on Exception catch (e) {
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print(e.toString());
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return null;
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}
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}
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/// Get the local list of conversations
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Future<ConversationsList> getCachedList() async {
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final list = await _conversationsDatabaseHelper.getAll();
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list.sort();
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return list;
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}
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/// Get information about a single conversation specified by its [id]
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Future<Conversation> _downloadSingle(int id) async {
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try {
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final response = await APIRequest(
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uri: "conversations/getInfoOne",
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needLogin: true,
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args: {"conversationID": id.toString()}).exec();
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if (response.code != 200) return null;
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final conversation = apiToConversation(response.getObject());
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_conversationsDatabaseHelper.insertOrUpdate(conversation);
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return conversation;
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} on Exception catch (e) {
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print(e.toString());
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print("Could not get information about a single conversation !");
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return null;
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}
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}
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/// Get information about a single conversation. If [force] is set to false,
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/// cached version of the conversation will be used, else it will always get
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/// the information from the server
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Future<Conversation> getSingle(int id, {bool force = false}) async {
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if (force || !await _conversationsDatabaseHelper.has(id))
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return await _downloadSingle(id);
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else
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return _conversationsDatabaseHelper.get(id);
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}
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/// Get information about a conversation. The method throws an [Exception] in
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/// case of failure
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///
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/// Return value of this method is never null.
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Future<Conversation> getSingleOrThrow(int id, {bool force = false}) async {
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final conv = await this.getSingle(id, force: force);
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if (conv == null)
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throw Exception("Could not get information about the conversation!");
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return conv;
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}
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/// Get the name of a [conversation]. This requires information
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/// about the users of this conversation
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static String getConversationName(
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Conversation conversation, UsersList users) {
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if (conversation.hasName) return conversation.name;
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String name = "";
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int count = 0;
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for (int i = 0; i < 3 && i < conversation.members.length; i++)
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if (conversation.members[i] != userID()) {
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name += (count > 0 ? ", " : "") +
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users.getUser(conversation.members[i]).fullName;
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count++;
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}
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if (conversation.members.length > 3) name += ", ...";
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return name;
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}
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/// Search and return a private conversation with a given [userID]. If such
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/// conversation does not exists, it is created if [allowCreate] is set to
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/// true
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Future<int> getPrivate(int userID, {bool allowCreate = true}) async {
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final response = await APIRequest(
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uri: "conversations/getPrivate",
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needLogin: true,
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args: {
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"otherUser": userID.toString(),
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"allowCreate": allowCreate.toString()
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},
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).exec();
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if (response.code != 200) return null;
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// Get and return conversation ID
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try {
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return int.parse(response.getObject()["conversationsID"][0].toString());
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} catch (e) {
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e.toString();
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return null;
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}
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}
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/// Asynchronously get the name of the conversation
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///
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/// Unlike the synchronous method, this method does not need information
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/// about the members of the conversation
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///
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/// Returns null in case of failure
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static Future<String> getConversationNameAsync(
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Conversation conversation) async {
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if (conversation.hasName) return conversation.name;
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//Get information about the members of the conversation
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final members = await UsersHelper().getUsersInfo(conversation.members);
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if (members == null) return null;
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return ConversationsHelper.getConversationName(conversation, members);
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}
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/// Turn an API entry into a [Conversation] object
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static Conversation apiToConversation(Map<String, dynamic> map) {
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return Conversation(
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id: map["ID"],
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ownerID: map["ID_owner"],
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lastActive: map["last_active"],
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name: map["name"] == false ? null : map["name"],
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following: map["following"] == 1,
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sawLastMessage: map["saw_last_message"] == 1,
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members: List<int>.from(map["members"]),
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canEveryoneAddMembers: map["canEveryoneAddMembers"],
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callCapabilities: map["can_have_video_call"]
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? CallCapabilities.VIDEO
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: (map["can_have_call"]
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? CallCapabilities.AUDIO
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: CallCapabilities.NONE),
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isHavingCall: map["has_call_now"]);
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}
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/// Parse a list of messages given by the server
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Future<ConversationMessagesList> _parseConversationMessageFromServer(
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int conversationID, APIResponse response) async {
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if (response.code != 200) return null;
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// Parse the response of the server
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ConversationMessagesList list = ConversationMessagesList();
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response.getArray().forEach((f) {
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list.add(
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apiToConversationMessage(f),
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);
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});
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// Save messages in the cache
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_conversationMessagesDatabaseHelper.insertOrUpdateAll(list);
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return list;
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}
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/// Refresh the list of messages of a conversation
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///
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/// Set [lastMessageID] to 0 to specify that we do not have any message of the
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/// conversation yet or another value else
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Future<ConversationMessagesList> _downloadNewMessagesSingle(
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int conversationID,
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{int lastMessageID = 0}) async {
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// Execute the request on the server
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final response = await APIRequest(
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uri: "conversations/refresh_single",
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needLogin: true,
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args: {
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"conversationID": conversationID.toString(),
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"last_message_id": lastMessageID.toString()
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}).exec();
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return await _parseConversationMessageFromServer(conversationID, response);
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}
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/// Get older messages for a given conversation from an online source
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Future<ConversationMessagesList> getOlderMessages({
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@required int conversationID,
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@required int oldestMessagesID,
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int limit = 15,
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}) async {
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// Perform the request online
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final response = await APIRequest(
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uri: "conversations/get_older_messages",
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needLogin: true,
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args: {
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"conversationID": conversationID.toString(),
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"oldest_message_id": oldestMessagesID.toString(),
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"limit": limit.toString()
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}).exec();
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return await _parseConversationMessageFromServer(conversationID, response);
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}
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/// Get new messages for a given conversation
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///
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/// If [lastMessageID] is set to 0 then we retrieve the last messages of
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/// the conversation.
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/// Otherwise [lastMessageID] contains the ID of the last known message
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Future<ConversationMessagesList> getNewMessages(
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{@required int conversationID,
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int lastMessageID = 0,
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bool online = true}) async {
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if (online)
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return await _downloadNewMessagesSingle(conversationID,
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lastMessageID: lastMessageID);
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else
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return await _conversationMessagesDatabaseHelper
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.getAllMessagesConversations(conversationID,
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lastMessageID: lastMessageID);
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}
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/// Get a single conversation message from the local database
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///
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/// Returns the message if found or null in case of failure
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Future<ConversationMessage> getSingleMessageFromCache(int messageID) async {
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return await _conversationMessagesDatabaseHelper.get(messageID);
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}
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/// Send a new message to the server
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Future<SendMessageResult> sendMessage(NewConversationMessage message) async {
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final request = APIRequest(
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uri: "conversations/sendMessage",
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needLogin: true,
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args: {
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"conversationID": message.conversationID.toString(),
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"message": message.hasMessage ? message.message : ""
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},
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);
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//Check for image
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if (message.hasImage) request.addFile("image", message.image);
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//Send the message
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APIResponse response;
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if (!message.hasImage)
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response = await request.exec();
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else
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response = await request.execWithFiles();
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if (response.code == 401)
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return SendMessageResult.MESSAGE_REJECTED;
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else if (response.code != 200) return SendMessageResult.FAILED;
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return SendMessageResult.SUCCESS;
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}
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/// Save / Update a message into the database
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Future<void> saveMessage(ConversationMessage msg) async {
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await _conversationMessagesDatabaseHelper.insertOrUpdate(msg);
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}
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/// Remove a message from the database
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Future<void> removeMessage(int msgID) async {
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await _conversationMessagesDatabaseHelper.delete(msgID);
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}
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/// Update a message content
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Future<bool> updateMessage(int id, String newContent) async {
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final response = await APIRequest(
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uri: "conversations/updateMessage",
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needLogin: true,
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args: {"messageID": id.toString(), "content": newContent}).exec();
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if (response.code != 200) return false;
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return true;
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}
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/// Delete permanently a message specified by its [id]
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Future<bool> deleteMessage(int id) async {
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// Delete the message online
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final response = await APIRequest(
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uri: "conversations/deleteMessage",
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needLogin: true,
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args: {"messageID": id.toString()}).exec();
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if (response.code != 200) return false;
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return true;
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}
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/// Register a conversation : ask the server to notify about updates to the
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/// conversation through WebSocket
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Future<void> registerConversationEvents(int id) async {
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if (_registeredConversations.containsKey(id))
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_registeredConversations[id]++;
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else {
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_registeredConversations[id] = 1;
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await ws("\$main/register_conv", {"convID": id});
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}
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}
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/// Un-register to conversation update events
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Future<void> unregisterConversationEvents(int id) async {
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if (!_registeredConversations.containsKey(id)) return;
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_registeredConversations[id]--;
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if (_registeredConversations[id] <= 0) {
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_registeredConversations.remove(id);
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await ws("\$main/unregister_conv", {"convID": id});
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}
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}
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/// Turn an API response into a ConversationMessage object
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static ConversationMessage apiToConversationMessage(
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Map<String, dynamic> map,
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) {
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return ConversationMessage(
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id: map["ID"],
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conversationID: map["convID"],
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userID: map["ID_user"],
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timeInsert: map["time_insert"],
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message: DisplayedString(map["message"]),
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imageURL: map["image_path"],
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);
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}
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}
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