From df5a5986b1a3b0c1bec723078814e91c19a52310 Mon Sep 17 00:00:00 2001
From: vimniky <vimniky@gmail.com>
Date: Tue, 24 Apr 2018 23:32:31 +0800
Subject: [PATCH] Prevent notifier from being deleted when there are alerts
 referencing it

---
 app/models/notifier.js  | 46 ++++++++++++++++++++++++++++++++++++++++-
 translations/en-us.yaml |  1 +
 2 files changed, 46 insertions(+), 1 deletion(-)

diff --git a/app/models/notifier.js b/app/models/notifier.js
index 960cdb086..231ad6e43 100644
--- a/app/models/notifier.js
+++ b/app/models/notifier.js
@@ -1,10 +1,14 @@
 import Resource from 'ember-api-store/models/resource';
 import { inject as service } from '@ember/service';
-import { get } from '@ember/object';
+import { computed, get } from '@ember/object';
+import { hash, reject } from 'rsvp';
 
 export default Resource.extend({
   type: 'notifier',
+  growl: service(),
+  intl: service(),
 
+  globalStore: service(),
   modalService: service('modal'),
 
   init(...args) {
@@ -33,6 +37,46 @@ export default Resource.extend({
 
   }.property('slackConfig', 'pagerdutyConfig', 'emailConfig', 'webhookConfig'),
 
+  findAlerts() {
+    const globalStore = get(this, 'globalStore');
+    const clusterId = get(this, 'clusterId');
+    const clusterAlerts = globalStore.findAll('clusterAlert', {filter: {clusterId}});
+    const projectAlerts = globalStore.findAll('projectAlert');
+    return hash({
+      clusterAlerts,
+      projectAlerts,
+    }).then(({
+      clusterAlerts,
+      projectAlerts,
+    }) => {
+      const alerts = [
+        ...clusterAlerts.content,
+        ...projectAlerts.content,
+      ].filter(alert => {
+        const recipients = get(alert, 'recipients');
+        if (!recipients || recipients.length === 0) {
+          return false;
+        }
+        return recipients.some(recipient => recipient.notifierId === get(this, 'id'));
+      });
+
+      return alerts;
+    });
+  },
+  delete() {
+    const self = this;
+    const sup = self._super;
+    return this.findAlerts().then(alerts => {
+      if (alerts.length) {
+        const alertNames = alerts.map(alert => get(alert, 'displayName')).join(',');
+        get(this, 'growl')
+          .error(get(this, 'intl')
+          .t('notifierPage.deleteErrorMessage', {displayName: get(this, 'displayName'), alertNames}));
+      } else {
+        sup.apply(self, arguments);
+      }
+    });
+  },
   actions: {
     edit() {
       this.get('modalService').toggleModal('notifier/modal-new-edit', {
diff --git a/translations/en-us.yaml b/translations/en-us.yaml
index d93ef3e46..376b5991d 100644
--- a/translations/en-us.yaml
+++ b/translations/en-us.yaml
@@ -1336,6 +1336,7 @@ notifierPage:
   notifiers: Notifiers
   testedBtnLabel: OK
   testingBtnLabel: Testing
+  deleteErrorMessage: 'Notifier {displayName} is in use by: {alertNames}'
   notifierTypes:
     slack: Slack
     email: Email