Convert Roles to TS

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

src/Roles.ts

@@ -0,0 +1,36 @@
+/*
+Copyright 2017 Vector Creations Ltd
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import { _t } from './languageHandler';
+
+export function levelRoleMap(usersDefault: number) {
+    return {
+        undefined: _t('Default'),
+        0: _t('Restricted'),
+        [usersDefault]: _t('Default'),
+        50: _t('Moderator'),
+        100: _t('Admin'),
+    };
+}
+
+export function textualPowerLevel(level: number, usersDefault: number): string {
+    const LEVEL_ROLE_MAP = levelRoleMap(usersDefault);
+    if (LEVEL_ROLE_MAP[level]) {
+        return LEVEL_ROLE_MAP[level];
+    } else {
+        return _t("Custom (%(level)s)", {level});
+    }
+}