apskel-pos-flutter-v2/lib/common/function/app_function.dart

import 'dart:developer';
import 'dart:math' hide log;

import 'package:flutter/material.dart';
import 'package:permission_handler/permission_handler.dart';
import 'package:shared_preferences/shared_preferences.dart';

import '../../injection.dart';
import '../constant/local_storage_key.dart';

void dismissKeyboard(BuildContext context) {
  final currentFocus = FocusScope.of(context);
  if (!currentFocus.hasPrimaryFocus && currentFocus.focusedChild != null) {
    FocusManager.instance.primaryFocus?.unfocus();
  }
}

Map<String, dynamic> getAuthorizationHeader() {
  return {
    'Authorization':
        'Bearer ${getIt<SharedPreferences>().getString(LocalStorageKey.token)}',
  };
}

Map<String, int> getChairDistribution(int capacity) {
  if (capacity == 1) {
    return {'top': 0, 'bottom': 0, 'left': 1, 'right': 0};
  } else if (capacity == 2) {
    return {'top': 0, 'bottom': 0, 'left': 1, 'right': 1};
  } else if (capacity == 3) {
    return {'top': 1, 'bottom': 0, 'left': 1, 'right': 1};
  } else if (capacity == 4) {
    return {'top': 1, 'bottom': 1, 'left': 1, 'right': 1};
  } else if (capacity == 5) {
    return {'top': 2, 'bottom': 1, 'left': 1, 'right': 1};
  } else if (capacity == 6) {
    return {'top': 2, 'bottom': 2, 'left': 1, 'right': 1};
  } else if (capacity == 7) {
    return {'top': 3, 'bottom': 2, 'left': 1, 'right': 1};
  } else if (capacity == 8) {
    return {'top': 3, 'bottom': 3, 'left': 1, 'right': 1};
  } else if (capacity == 9) {
    return {'top': 4, 'bottom': 3, 'left': 1, 'right': 1};
  } else if (capacity == 10) {
    return {'top': 4, 'bottom': 4, 'left': 1, 'right': 1};
  } else {
    int side = ((capacity - 2) / 2).floor();
    return {'top': side, 'bottom': side, 'left': 1, 'right': 1};
  }
}

double safeDouble(double value) {
  if (value.isNaN || value.isInfinite) return 0.0;
  return value;
}

int safeRound(double value) {
  if (value.isNaN || value.isInfinite) return 0;
  return value.round();
}

Future<void> loadPermissionBluetooth() async {
  var status2 = await Permission.bluetoothScan.status;
  log("Permission: $status2");
  if (status2.isDenied) {
    await Permission.bluetoothScan.request();
  }
  var status = await Permission.bluetoothConnect.status;
  if (status.isDenied) {
    await Permission.bluetoothConnect.request();
  }
}

int generateRandomNumber() {
  final random = Random();
  return 1 + random.nextInt(10000);
}