adds unique has column because of mysql unique character limitation

Signed-off-by: Billy Stalnaker <bstalnaker@roadie.com>

plugins/notifications-common/report.api.md

@@ -11,6 +11,14 @@ export type ChannelSetting = {
   origins: OriginSetting[];
 };
 
+// @public (undocumented)
+export const generateSettingsHash: (
+  user: string,
+  channel: string,
+  origin: string,
+  topic: string | null,
+) => string;
+
 // @public (undocumented)
 export const getProcessorFiltersFromConfig: (
   config: Config,

plugins/notifications-common/src/utils.ts

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 import { NotificationSettings } from './types';
+import crypto from 'crypto';
 
 /** @public */
 export const isNotificationsEnabledFor = (
@@ -40,3 +41,14 @@ export const isNotificationsEnabledFor = (
   }
   return topic.enabled;
 };
+
+/** @public */
+export const generateSettingsHash = (
+  user: string,
+  channel: string,
+  origin: string,
+  topic: string | null,
+): string => {
+  const rawKey = `${user}|${channel}|${origin}|${topic ?? ''}`;
+  return crypto.createHash('sha256').update(rawKey).digest('hex');
+};