import 'dart:convert';
import 'package:Envelope/models/messages.dart';
import 'package:http/http.dart' as http;
import 'package:flutter_dotenv/flutter_dotenv.dart';
import 'package:pointycastle/export.dart';
import 'package:sqflite/sqflite.dart';
import 'package:Envelope/models/conversations.dart';
import '/utils/storage/session_cookie.dart';
import '/utils/storage/encryption_keys.dart';
import '/utils/storage/database.dart';
import '/models/conversations.dart';

// TODO: Move this to table
Map<String, Map<String, String>> _mapUsers(String users) {
    List<dynamic> usersJson = jsonDecode(users);

    Map<String, Map<String, String>> mapped = {};

    for (var i = 0; i < usersJson.length; i++) {
        mapped[usersJson[i]['id']] = {
            'username': usersJson[i]['username'],
            'admin': usersJson[i]['admin'],
        };
    }

    return mapped;
}

Future<void> updateMessageThread(Conversation conversation, {RSAPrivateKey? privKey}) async {
    privKey ??= await getPrivateKey();

    var resp = await http.get(
            Uri.parse('${dotenv.env["SERVER_URL"]}api/v1/auth/messages/${conversation.messageThreadKey}'),
            headers: {
                'cookie': await getSessionCookie(),
            }
    );

    if (resp.statusCode != 200) {
        throw Exception(resp.body);
    }

    var mapped = _mapUsers(conversation.users!);

    List<dynamic> messageThreadJson = jsonDecode(resp.body);

    final db = await getDatabaseConnection();

    for (var i = 0; i < messageThreadJson.length; i++) {
        Message message = Message.fromJson(
                messageThreadJson[i] as Map<String, dynamic>,
                privKey,
        );

        // TODO: Fix this
        message.senderUsername = mapped[message.senderId]!['username']!;

        await db.insert(
                'messages',
                message.toMap(),
                conflictAlgorithm: ConflictAlgorithm.replace,
        );

    }
}

Future<void> updateMessageThreads({List<Conversation>? conversations}) async {
    RSAPrivateKey privKey = await getPrivateKey();

    conversations ??= await getConversations();

    for (var i = 0; i < conversations.length; i++) {
        await updateMessageThread(conversations[i], privKey: privKey);
    }
}