Feature: Wrangler (#23602)

* Migrate feature/wrangler to mono-repo

* Add wrangler files

* Fix linters, types, etc

* Fix snapshots

* Fix playwright

* Fix pipelines

* Fix more pipeline

* Fixes for pipelines

* More changes for pipeline

* Fix types

* Add support for a feature flag, but leave it defaulted on for spinwick usage for now

* Update snapshot

* fix js error when removing last value of multiselect, support CSV marshaling to string array for textsetting

* Fix linter

* Remove TODO

* Remove another TODO

* fix tests

* Fix i18n

* Add server tests

* Fix linter

* Fix linter

* Use proper icon for dot menu

* Update snapshot

* Add Cypress UI tests for various entrypoints to move thread modal, split SCSS out from forward post into its own thing

* clean up

* fix linter

* More cleanup

* Revert files to master

* Fix linter for e2e tests

* Make ForwardPostChannelSelect channel types configurable with a prop

* Add missing return

* Fixes from PR feedback

* First batch of PR Feedback

* Another batch of PR changes

* Fix linter

* Update snapshots

* Wrangler system messages are translated to each user's locale

* Initially translate Wrangler into system locale rather than initiating user

* More fixes for PR Feedback

* Fix some server tests

* More updates with master. Fixes around pipelines. Enforce Enterprise license on front/back end

* Add tests for dot_menu

* More pipeline fixes

* Fix e2etests prettier

* Update cypress tests, change occurrences of 'Wrangler' with 'Move Thread'

* Fix linter

* Remove enterprise lock

* A couple more occurrences of wrangler strings, and one more enterprise lock

* Fix server tests

* Fix i18n

* Fix e2e linter

* Feature flag shouldn't be on by default

* Enable move threads feature in smoke tests (#25657)

* enable move threads feature
* add @prod tag

* Fix move_thread_from_public_channel e2e test

* Fix e2e style

---------

Co-authored-by: Mattermost Build <build@mattermost.com>
Co-authored-by: yasserfaraazkhan <attitude3cena.yf@gmail.com>

server/public/model/post_list.go

@@ -190,3 +190,39 @@ func (o *PostList) IsChannelId(channelId string) bool {
 
 	return true
 }
+
+func (o *PostList) BuildWranglerPostList() *WranglerPostList {
+	wpl := &WranglerPostList{}
+
+	o.UniqueOrder()
+	o.SortByCreateAt()
+	posts := o.ToSlice()
+
+	if len(posts) == 0 {
+		// Something was sorted wrong or an empty PostList was provided.
+		return wpl
+	}
+
+	// A separate ID key map to ensure no duplicates.
+	idKeys := make(map[string]bool)
+
+	for i := range posts {
+		p := posts[len(posts)-i-1]
+
+		// Add UserID to metadata if it's new.
+		if _, ok := idKeys[p.UserId]; !ok {
+			idKeys[p.UserId] = true
+			wpl.ThreadUserIDs = append(wpl.ThreadUserIDs, p.UserId)
+		}
+
+		wpl.FileAttachmentCount += int64(len(p.FileIds))
+
+		wpl.Posts = append(wpl.Posts, p)
+	}
+
+	// Set metadata for earliest and latest posts
+	wpl.EarlistPostTimestamp = wpl.RootPost().CreateAt
+	wpl.LatestPostTimestamp = wpl.Posts[wpl.NumPosts()-1].CreateAt
+
+	return wpl
+}