implement storeInstallation

packages/slackbot-proxy/src/services/InstallerService.ts

@@ -33,12 +33,19 @@ export class InstallerService {
       clientSecret,
       stateSecret,
       installationStore: {
+        // upsert
         storeInstallation: async(slackInstallation: SlackInstallation<'v1' | 'v2', boolean>) => {
-          const installation = new Installation();
-          installation.setData(slackInstallation);
+          const existedInstallation = await repository.findByTeamIdOrEnterpriseId(slackInstallation.team?.id, slackInstallation.enterprise?.id);
 
-          await repository.save(installation);
+          if (existedInstallation != null) {
+            existedInstallation.setData(slackInstallation);
+            repository.save(existedInstallation);
+            return;
+          }
 
+          const installation = new Installation();
+          installation.setData(slackInstallation);
+          repository.save(installation);
           return;
         },
         fetchInstallation: async(installQuery: InstallationQuery<boolean>) => {