stack_wallet/lib/utilities/stack_file_system.dart

import 'dart:io';

import 'package:path_provider/path_provider.dart';
import 'package:stackwallet/utilities/logger.dart';
import 'package:stackwallet/utilities/util.dart';

abstract class StackFileSystem {
  static Future<Directory> applicationRootDirectory() async {
    Directory appDirectory;

    // todo: can merge and do same as regular linux home dir?
    if (Logging.isArmLinux) {
      appDirectory = await getApplicationDocumentsDirectory();
      appDirectory = Directory("${appDirectory.path}/.stackwallet");
    } else if (Platform.isLinux) {
      appDirectory = Directory("${Platform.environment['HOME']}/.stackwallet");
    } else if (Platform.isWindows) {
      appDirectory = await getApplicationSupportDirectory();
    } else if (Platform.isMacOS) {
      // currently run in ipad mode??
      throw Exception("Unsupported platform");
    } else if (Platform.isIOS) {
      // todo: check if we need different behaviour here
      if (Util.isDesktop) {
        appDirectory = await getLibraryDirectory();
      } else {
        appDirectory = await getLibraryDirectory();
      }
    } else if (Platform.isAndroid) {
      appDirectory = await getApplicationDocumentsDirectory();
    } else {
      throw Exception("Unsupported platform");
    }
    if (!appDirectory.existsSync()) {
      await appDirectory.create(recursive: true);
    }
    return appDirectory;
  }

  static Future<Directory> applicationIsarDirectory() async {
    final root = await applicationRootDirectory();
    if (Util.isDesktop) {
      final dir = Directory("${root.path}/isar");
      if (!dir.existsSync()) {
        await dir.create();
      }
      return dir;
    } else {
      return root;
    }
  }

  static Future<Directory> applicationHiveDirectory() async {
    final root = await applicationRootDirectory();
    if (Util.isDesktop) {
      final dir = Directory("${root.path}/hive");
      if (!dir.existsSync()) {
        await dir.create();
      }
      return dir;
    } else {
      return root;
    }
  }
}