Notes

chat_provider.dart
import 'dart:io';

import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:firebase_storage/firebase_storage.dart';
import 'package:ichat_app/allConstants/firestore_constants.dart';
import 'package:ichat_app/allModels/message_chat.dart';
import 'package:shared_preferences/shared_preferences.dart';

class ChatProvider{
final SharedPreferences prefs;
final FirebaseFirestore firebaseFirestore;
final FirebaseStorage firebaseStorage;

ChatProvider({
required this.firebaseFirestore,
required this.prefs,
required this.firebaseStorage,
});

UploadTask uploadFile(File image, String filename){
Reference reference = firebaseStorage.ref().child(filename);
UploadTask uploadTask = reference.putFile(image);
return uploadTask;
}

Future<void> updateDataFirestore(String collectionPath,String docPath, Map<String,dynamic> dataNeedUpdate){
return firebaseFirestore.collection(collectionPath).doc(docPath).update(dataNeedUpdate);
}

Stream<QuerySnapshot> getChatStream(String groupChatId, int limit){
return firebaseFirestore
.collection(FirestoreConstants.pathMessageCollection)
.doc(groupChatId)
.collection(groupChatId)
.orderBy(FirestoreConstants.timestamp, descending: true)
.limit(limit)
.snapshots();
}

void sendMessage(String content,int type,String groupChatId, String currentUserId,String peerId){
DocumentReference documentReference = firebaseFirestore
.doc(groupChatId)
.collection(groupChatId)
.doc(DateTime.now().millisecondsSinceEpoch.toString());

MessageChat messageChat = MessageChat(
idFrom: currentUserId,
idTo: peerId,
timestamp: DateTime.now().millisecondsSinceEpoch.toString(),
content: content,
type: type
);

FirebaseFirestore.instance.runTransaction((transaction) async{
transaction.set(
documentReference,
messageChat.toJson()
);
});
}
}

class TypeMessage{
static const text =0;
static const image = 1;
static const sticker = 2;
}