// Config/database_config.dart

import 'dart:io';
import 'dart:async';

class DatabaseConfig {
  // Local MySQL settings
  static const String localHost = '192.168.88.3';
  static const String localUsername = 'guycom';
  static const String? localPassword = '3iV59wjRdbuXAPR';
  static const String localDatabase = 'guycom';
  // static const String localHost = 'localhost';
  // static const String localUsername = 'root';
  // static const String? localPassword = null;
  // static const String localDatabase = 'guycom';

  // Production (public) MySQL settings
  static const String prodHost = '102.16.56.177';
  // static const String prodHost = '185.70.105.157';
  static const String prodUsername = 'guycom';
  static const String prodPassword = '3iV59wjRdbuXAPR';
  static const String prodDatabase = 'guycom';

  static const int port = 3306;
  static const Duration connectionTimeout = Duration(seconds: 30);
  static const Duration queryTimeout = Duration(seconds: 15);

  static const int maxConnections = 10;
  static const int minConnections = 2;

  static bool get isDevelopment => true;

  /// Build config map for connection
  static Map<String, dynamic> _buildConfig({
    required String host,
    required String user,
    required String? password,
    required String database,
  }) {
    return {
      'host': host,
      'port': port,
      'user': user,
      'password': password,
      'database': database,
      'timeout': connectionTimeout.inSeconds,
    };
  }

  /// TCP check if MySQL server is reachable
  static Future<bool> isServerReachable(String host, {int port = 3306}) async {
    try {
      final socket =
          await Socket.connect(host, port, timeout: Duration(seconds: 2));
      socket.destroy();
      return true;
    } catch (_) {
      return false;
    }
  }

  /// Get smart config (local if reachable, otherwise public)
  static Future<Map<String, dynamic>> getSmartConfig() async {
    if (await isServerReachable(localHost, port: port)) {
      return _buildConfig(
        host: localHost,
        user: localUsername,
        password: localPassword,
        database: localDatabase,
      );
    } else {
      return _buildConfig(
        host: prodHost,
        user: prodUsername,
        password: prodPassword,
        database: prodDatabase,
      );
    }
  }

  /// Validate any config
  static bool validateConfig(Map<String, dynamic> config) {
    try {
      return config['host']?.toString().isNotEmpty == true &&
          config['database']?.toString().isNotEmpty == true &&
          config['user'] != null;
    } catch (e) {
      print("Erreur de validation de la configuration: $e");
      return false;
    }
  }

  /// Add retry config
  static Map<String, dynamic> addRetry(Map<String, dynamic> config) {
    return {
      ...config,
      'retryCount': 3,
      'retryDelay': 5000, // ms
    };
  }
}