import 'dart:convert';
import 'package:http/http.dart' as http;

class RedisService {
  static final RedisService _instance = RedisService._internal();

  factory RedisService() => _instance;

  RedisService._internal();

  Future<void> setKeyValue(String key, Object value) async {
    final uri = Uri.parse('http://143.64.185.20:18606/redis/set');
    await http.post(
      uri,
      headers: {'Content-Type': 'application/json'},
      body: json.encode({'key': key, 'value': value}),
    );
  }

  Future<String?> getValue(String key) async {
    try {
      final uri = Uri.parse('http://143.64.185.20:18606/redis/get?key=$key');
      final response = await http.get(uri);
      if (response.statusCode == 200) {
        return json.decode(response.body);
      } else {
        return null;
      }
    } catch (e) {
      return null;
    }
  }
}