From e13b8a96282d8b47435a0b7341f41d6605b5cbd6 Mon Sep 17 00:00:00 2001
From: Frank Elsinga <frank@elsinga.de>
Date: Sat, 26 Aug 2023 20:08:22 +0200
Subject: [PATCH 1/3] removed all components

---
 server/backend/cron/chat.go     | 7 -------
 server/backend/cron/cronjobs.go | 3 ---
 2 files changed, 10 deletions(-)
 delete mode 100644 server/backend/cron/chat.go

diff --git a/server/backend/cron/chat.go b/server/backend/cron/chat.go
deleted file mode 100644
index 5f6498f1..00000000
--- a/server/backend/cron/chat.go
+++ /dev/null
@@ -1,7 +0,0 @@
-package cron
-
-//lint:ignore U1000 stub
-func (c *CronService) chatCron() error {
-	// TODO: implement
-	return nil
-}
diff --git a/server/backend/cron/cronjobs.go b/server/backend/cron/cronjobs.go
index 1316f575..fc6858b9 100644
--- a/server/backend/cron/cronjobs.go
+++ b/server/backend/cron/cronjobs.go
@@ -31,7 +31,6 @@ const (
 	IOSActivityReset         = "iosActivityReset"
 
 	/* MensaType      = "mensa"
-	ChatType       = "chat"
 	KinoType       = "kino"
 	RoomfinderType = "roomfinder"
 	AlarmType      = "alarm" */
@@ -107,8 +106,6 @@ func (c *CronService) Run() error {
 					TODO: Implement handlers for other cronjobs
 					case MensaType:
 						g.Go(func() error { return c.mensaCron() })
-					case ChatType:
-						g.Go(func() error { return c.chatCron() })
 					case KinoType:
 						g.Go(func() error { return c.kinoCron() })
 					case RoomfinderType:

From 8689fd8e00fda020e155746abde54fdce376131e Mon Sep 17 00:00:00 2001
From: Frank Elsinga <frank@elsinga.de>
Date: Sat, 26 Aug 2023 20:08:32 +0200
Subject: [PATCH 2/3] added a migration to remove the chat variabnt from the
 cronjob

---
 server/backend/migration/20230825000000.go | 25 ++++++++++++++++++++++
 server/model/crontab.go                    |  2 +-
 2 files changed, 26 insertions(+), 1 deletion(-)
 create mode 100644 server/backend/migration/20230825000000.go

diff --git a/server/backend/migration/20230825000000.go b/server/backend/migration/20230825000000.go
new file mode 100644
index 00000000..6f64ea82
--- /dev/null
+++ b/server/backend/migration/20230825000000.go
@@ -0,0 +1,25 @@
+package migration
+
+import (
+	"github.com/TUM-Dev/Campus-Backend/server/model"
+	"github.com/go-gormigrate/gormigrate/v2"
+	"gorm.io/gorm"
+)
+
+// migrate20230825000000
+// Removes the ability to run chat cronjobs
+func (m TumDBMigrator) migrate20230825000000() *gormigrate.Migration {
+	return &gormigrate.Migration{
+		ID: "20230825000000",
+		Migrate: func(tx *gorm.DB) error {
+			// deactivete the crontab (Rollback deletes this from the enum)
+			// given that previously, not cronjobs for this type existed there is no need to remove offending entries first
+			return SafeEnumRollback(tx, &model.Crontab{}, "type", "chat")
+		},
+		Rollback: func(tx *gorm.DB) error {
+			// activete the crontab (Migrate adds this from to the enum)
+			// given that previously, not cronjobs for this type existed there is no need to add entries first
+			return SafeEnumMigrate(tx, &model.Crontab{}, "type", "chat")
+		},
+	}
+}
diff --git a/server/model/crontab.go b/server/model/crontab.go
index e42571b2..a4506833 100644
--- a/server/model/crontab.go
+++ b/server/model/crontab.go
@@ -18,7 +18,7 @@ type Crontab struct {
 	//[ 2] lastRun                                        int                  null: false  primary: false  isArray: false  auto: false  col: int             len: -1      default: [0]
 	LastRun int32 `gorm:"column:lastRun;type:int;default:0;" json:"last_run"`
 	//[ 3] type                                           char(10)             null: true   primary: false  isArray: false  auto: false  col: char            len: 10      default: []
-	Type null.String `gorm:"column:type;type:enum ('news', 'mensa', 'chat', 'kino', 'roomfinder', 'alarm', 'fileDownload','dishNameDownload','averageRatingComputation', 'iosNotifications', 'iosActivityReset', 'canteenHeadCount');" json:"type"`
+	Type null.String `gorm:"column:type;type:enum ('news', 'mensa', 'kino', 'roomfinder', 'alarm', 'fileDownload','dishNameDownload','averageRatingComputation', 'iosNotifications', 'iosActivityReset', 'canteenHeadCount');" json:"type"`
 	//[ 4] id                                             int                  null: true   primary: false  isArray: false  auto: false  col: int             len: -1      default: []
 	ID null.Int `gorm:"column:id;type:int;" json:"id"`
 }

From 97b089b85f376db1dbd4474ecde83b5b14d69000 Mon Sep 17 00:00:00 2001
From: Frank Elsinga <frank@elsinga.de>
Date: Tue, 12 Sep 2023 21:34:51 +0200
Subject: [PATCH 3/3] added the missing migration to the list of migrations

---
 server/backend/migration/migration.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/server/backend/migration/migration.go b/server/backend/migration/migration.go
index b5511a82..1613c268 100644
--- a/server/backend/migration/migration.go
+++ b/server/backend/migration/migration.go
@@ -42,6 +42,7 @@ func (m TumDBMigrator) Migrate() error {
 		m.migrate20221119131300(),
 		m.migrate20221210000000(),
 		m.migrate20230904000000(),
+		m.migrate20230825000000(),
 	})
 	err := mig.Migrate()
 	return err