import 'package:flutter/material.dart';
import 'package:flutter_gen/gen_l10n/app_localizations.dart';
// implementation of permission types
// according to the server permissions.ts
// https://codeberg.org/outbag/server/src/branch/dev/src/server/permissions.ts

// same as javascript 0b prefix
// pronounced o-b
int oB(String binary) {
  return int.parse(binary, radix: 2);
}

class ServerPermission {
  static int get none {
    return oB("0000000000000000");
  }

  // default permission set
  static int get def {
    return oB("0000000000000011");
  }

  static int get canUseAPI {
    return oB("0000000000000001");
  }

  static int get provideCert {
    return oB("0000000000000010");
  }

  static int get manageOTA {
    return oB("0000010000000000");
  }

  static int get manageServerProductList {
    return oB("0000100000000000");
  }

  static int get viewUsersAndLists {
    return oB("0001000000000000");
  }

  static int get editSettings {
    return oB("0010000000000000");
  }

  static int get editPermissions {
    return oB("0100000000000000");
  }

  static int get editUsers {
    return oB("1000000000000000");
  }

  static int get allManagement {
    return oB("1111110000000000");
  }

  static int get all {
    return oB("1111111111111111");
  }
}

class RoomPermission {
  static int get addArticles {
    return oB("0000001");
  }

  static int get removeArticles {
    return oB("0000010");
  }

  static int get listCategoriesAndProducts {
    return oB("0000100");
  }

  static int get changeMeta {
    return oB("0001000");
  }

  static int get ota {
    return oB("0010000");
  }

  static int get changeAdmin {
    return oB("0100000");
  }

  static int get manageMembers {
    return oB("1000000");
  }

  static List<int> get asList {
    return [
      addArticles,
      removeArticles,
      listCategoriesAndProducts,
      changeMeta,
      ota,
      changeAdmin,
      manageMembers
    ];
  }

  static String name(int permission, BuildContext context) {
    final trans = AppLocalizations.of(context);

    switch (permission) {
      case 1:
      return trans!.roomPermissionAddArticles;
      case 2:
      return trans!.roomPermissionRemoveArticles;
      case 4:
      return trans!.roomPermissionList;
      case 8:
      return trans!.roomPermissionChangeMeta;
      case 16:
      return trans!.roomPermissionManageOTA;
      case 32:
      return trans!.roomPermissionManageAdmins;
      case 64:
      return trans!.roomPermissionManageMembers;
    }

    return trans!.roomPermissionUnknown;
  }

  static String describe(int permission, BuildContext context) {
    final trans = AppLocalizations.of(context);

    switch (permission) {
      case 1:
      return trans!.roomPermissionAddArticlesSubtitle;
      case 2:
      return trans!.roomPermissionRemoveArticlesSubtitle;
      case 4:
      return trans!.roomPermissionListSubtitle;
      case 8:
      return trans!.roomPermissionChangeMetaSubtitle;
      case 16:
      return trans!.roomPermissionManageOTASubtitle;
      case 32:
      return trans!.roomPermissionManageAdminsSubtitle;
      case 64:
      return trans!.roomPermissionManageMembersSubtitle;
    }

    return trans!.roomPermissionUnknownSubtitle;
  }
}