MM-45317: global drafts endpoints and ws events (#20614)

* MM-23881: global drafts endpoints and ws events

Adds endpoints:
- create/update drafts
- delete draft
- get drafts

Adds WS events:
- draft_updated
- draft_created
- draft_deleted

* Ordering and WS event name fixes

* Adds PostID to the drafts table

In the future the drafts will include edited posts, this commit adds the
post id in the combined pkey of the table.

* Fixes route for deleting a thread draft

* Fixes failed checks

* Fixes migrations

* Fixes migration

* Extract translation strings

* Removes PostID since we won't sync editing posts

* Fixes tests

* Fixes i18n

* Update migrations for global drafts

* update branch with latest master changes

* Add feature flag for global drafts

* Set global drafts feature flag default to true

* Added support for files in drafts

* Fix failing i18n check

* Added support for deleting files in drafts

* Revert "Added support for deleting files in drafts"

This reverts commit 45dfd04a760359de2e8814d652c9ef46daf994f6.

* Triggering new test server

* Add config setting 'AllowSyncedDrafts' for syncing drafts with server

* Triggering new test server

* Triggering new test server

* Add guard for config setting and add initial tests

* Fix i18n and lint errors

* Triggering new test server

* Add tests for drafts

* fix lint issues

* Add tests for model/draft

* Triggering new test server

* Triggering new test server

* Trigger new test server

* Address PR comments

* Change left join to regular join in GetDraftsForUser

* Fix broken test

Maybe consider adding an inclDeleted field if we want to get deleted drafts in the future

* fix translations

* Add store tests for drafts

* fix test naming

* remove comment

* update migrations

* set feature flag default to false

* update migrations

Co-authored-by: Mylon Suren <mylonsuren@gmail.com>
Co-authored-by: Mattermod <mattermod@users.noreply.github.com>

store/timerlayer/timerlayer.go

@@ -26,6 +26,7 @@ type TimerLayer struct {
 	CommandStore              store.CommandStore
 	CommandWebhookStore       store.CommandWebhookStore
 	ComplianceStore           store.ComplianceStore
+	DraftStore                store.DraftStore
 	EmojiStore                store.EmojiStore
 	FileInfoStore             store.FileInfoStore
 	GroupStore                store.GroupStore
@@ -92,6 +93,10 @@ func (s *TimerLayer) Compliance() store.ComplianceStore {
 	return s.ComplianceStore
 }
 
+func (s *TimerLayer) Draft() store.DraftStore {
+	return s.DraftStore
+}
+
 func (s *TimerLayer) Emoji() store.EmojiStore {
 	return s.EmojiStore
 }
@@ -260,6 +265,11 @@ type TimerLayerComplianceStore struct {
 	Root *TimerLayer
 }
 
+type TimerLayerDraftStore struct {
+	store.DraftStore
+	Root *TimerLayer
+}
+
 type TimerLayerEmojiStore struct {
 	store.EmojiStore
 	Root *TimerLayer
@@ -2955,6 +2965,86 @@ func (s *TimerLayerComplianceStore) Update(compliance *model.Compliance) (*model
 	return result, err
 }
 
+func (s *TimerLayerDraftStore) Delete(userID string, channelID string, rootID string) error {
+	start := time.Now()
+
+	err := s.DraftStore.Delete(userID, channelID, rootID)
+
+	elapsed := float64(time.Since(start)) / float64(time.Second)
+	if s.Root.Metrics != nil {
+		success := "false"
+		if err == nil {
+			success = "true"
+		}
+		s.Root.Metrics.ObserveStoreMethodDuration("DraftStore.Delete", success, elapsed)
+	}
+	return err
+}
+
+func (s *TimerLayerDraftStore) Get(userID string, channelID string, rootID string) (*model.Draft, error) {
+	start := time.Now()
+
+	result, err := s.DraftStore.Get(userID, channelID, rootID)
+
+	elapsed := float64(time.Since(start)) / float64(time.Second)
+	if s.Root.Metrics != nil {
+		success := "false"
+		if err == nil {
+			success = "true"
+		}
+		s.Root.Metrics.ObserveStoreMethodDuration("DraftStore.Get", success, elapsed)
+	}
+	return result, err
+}
+
+func (s *TimerLayerDraftStore) GetDraftsForUser(userID string, teamID string) ([]*model.Draft, error) {
+	start := time.Now()
+
+	result, err := s.DraftStore.GetDraftsForUser(userID, teamID)
+
+	elapsed := float64(time.Since(start)) / float64(time.Second)
+	if s.Root.Metrics != nil {
+		success := "false"
+		if err == nil {
+			success = "true"
+		}
+		s.Root.Metrics.ObserveStoreMethodDuration("DraftStore.GetDraftsForUser", success, elapsed)
+	}
+	return result, err
+}
+
+func (s *TimerLayerDraftStore) Save(d *model.Draft) (*model.Draft, error) {
+	start := time.Now()
+
+	result, err := s.DraftStore.Save(d)
+
+	elapsed := float64(time.Since(start)) / float64(time.Second)
+	if s.Root.Metrics != nil {
+		success := "false"
+		if err == nil {
+			success = "true"
+		}
+		s.Root.Metrics.ObserveStoreMethodDuration("DraftStore.Save", success, elapsed)
+	}
+	return result, err
+}
+
+func (s *TimerLayerDraftStore) Update(d *model.Draft) (*model.Draft, error) {
+	start := time.Now()
+
+	result, err := s.DraftStore.Update(d)
+
+	elapsed := float64(time.Since(start)) / float64(time.Second)
+	if s.Root.Metrics != nil {
+		success := "false"
+		if err == nil {
+			success = "true"
+		}
+		s.Root.Metrics.ObserveStoreMethodDuration("DraftStore.Update", success, elapsed)
+	}
+	return result, err
+}
+
 func (s *TimerLayerEmojiStore) Delete(emoji *model.Emoji, timestamp int64) error {
 	start := time.Now()
 
@@ -11424,6 +11514,7 @@ func New(childStore store.Store, metrics einterfaces.MetricsInterface) *TimerLay
 	newStore.CommandStore = &TimerLayerCommandStore{CommandStore: childStore.Command(), Root: &newStore}
 	newStore.CommandWebhookStore = &TimerLayerCommandWebhookStore{CommandWebhookStore: childStore.CommandWebhook(), Root: &newStore}
 	newStore.ComplianceStore = &TimerLayerComplianceStore{ComplianceStore: childStore.Compliance(), Root: &newStore}
+	newStore.DraftStore = &TimerLayerDraftStore{DraftStore: childStore.Draft(), Root: &newStore}
 	newStore.EmojiStore = &TimerLayerEmojiStore{EmojiStore: childStore.Emoji(), Root: &newStore}
 	newStore.FileInfoStore = &TimerLayerFileInfoStore{FileInfoStore: childStore.FileInfo(), Root: &newStore}
 	newStore.GroupStore = &TimerLayerGroupStore{GroupStore: childStore.Group(), Root: &newStore}