Feature edit attachments (#29769)

* Updated patch/update post API to allow file modification (#29447)

* WIP

* WIP

* Atatched new files ton post

* WIP: deleting removed files

* Deleted removed files and invalidated file metadata cache

* removed file ignore logif from update post API

* Added TestFindExclusives

* Added tests for DeleteForPostByIds

* Added app layer tests

* Added tests

* Added API level tests

* test enhancements

* Fixed a test

* Edit history include file metadata (#29505)

* Send file metadata in edit history metadata

* Added app tests

* Added store tests

* Added tests for populateEditHistoryFileMetadata{

* Added cache to avoid repetitigve DB calls for edits with only message changes

* Added API tests

* i18m fix

* removed commented code

* Improved test helper

* Show attachments in edit history RHS (#29519)

* Send file metadata in edit history metadata

* Added app tests

* Added store tests

* Added tests for populateEditHistoryFileMetadata{

* Added cache to avoid repetitigve DB calls for edits with only message changes

* Added API tests

* i18m fix

* WIUP: displa files in edit

* removed commented code

* Displayed file in edit history

* Handled file icon

* Fixed closing history component on clicking on file

* Simplified selector

* Simplified selector

* Improved test helper

* Disabled action menu on edit history file

* Added tests

* Improved selector

* Updated snapshot

* review Fixes

* restructured componnets

* Updated test

* Updated test

* Restore post api (#29643)

* Restore post version API WIP

* Undelete files WIP

* Added store tests

* Created post restore API

* Updated updatepost safeUpdate signature

* review fixex and improvements

* Fixed an app test

* Added API laer tests

* Added API tests and OpenAPI specs

* Fixed a typo

* Allow editing files when editing posts (#29709)

* WIP - basic view files when editing post

* Cleanup

* bg color

* Added text editor tests for files

* WIP

* WIP

* removed debug log

* Allowed admin to add and remove files on someone else's post

* Handled drafts and scheduled posts

* linter fixes

* Updated snapshot

* server test fix

* CI

* Added doc

* Restore post api integration (#29719)

* WIP - basic view files when editing post

* Cleanup

* bg color

* Added text editor tests for files

* WIP

* WIP

* removed debug log

* Allowed admin to add and remove files on someone else's post

* Handled drafts and scheduled posts

* linter fixes

* Updated snapshot

* server test fix

* Used new API to restore post

* handled edut limit and undo

* lint fix

* added comments

* Fixed edit post item tests

* Fixed buttons

* Aded snapshots

* fix test

* Updated snapshot

* Minor fixes

* fixed snapshot

* Edit file dnd area (#29763)

* dnd wip

* DND continued

* Supported multiple unbind dragster funcs

* lint fixes

* Got center channel file drop working when editing a post

* file dnd working with center channel and rhs

* file dnd working with center channel and rhs

* removed unneeded stopPropogation calls

* cleanup

* DND overlay fix

* Lint fix

* Advanced text editor test updates for file upload overlay

* fixed use upload hook tests

* Updated some more snapshots

* minor cleanup

* Updated i18n

* removed need of array for dragster unbind events

* lint fixes

* edit history cursor

* Fixed bugu causing faliure to delete empty posts (#29778)

* Files in restore confirmation (#29781)

* Added files to restore post confirmation dialog

* Fixed post restore toast colors

* Fixed restore bug

* Fixed restore confirmation toast tests

* a11y improvement and modal width fix

* Edit attachment misc fixes (#29808)

* Removed single image actions in restore post confirmation dialog

* Fixed file drop overlay size and position

* Made edit indiator accessible

* Lint fix

* Added bunch of more tests

* ANother test migrated from enzyme to react testing library

* More test enhancements

* More test enhancements

* More test enhancements

* lint fixes

* Fixed  a test

* Added missing snapshots

* Test fixes

server/channels/app/helper_test.go

@@ -50,6 +50,10 @@ type TestHelper struct {
 	tempWorkspace string
 }
 
+type PostOptions func(*model.Post)
+
+type PostPatchOptions func(patch *model.PostPatch)
+
 func setupTestHelper(dbStore store.Store, enterprise bool, includeCacheLayer bool,
 	updateConfig func(*model.Config), options []Option, tb testing.TB) *TestHelper {
 	tempWorkspace, err := os.MkdirTemp("", "apptest")
@@ -445,7 +449,7 @@ func (th *TestHelper) CreateGroupChannel(c request.CTX, user1 *model.User, user2
 	return channel
 }
 
-func (th *TestHelper) CreatePost(channel *model.Channel) *model.Post {
+func (th *TestHelper) CreatePost(channel *model.Channel, postOptions ...PostOptions) *model.Post {
 	id := model.NewId()
 
 	post := &model.Post{
@@ -455,6 +459,10 @@ func (th *TestHelper) CreatePost(channel *model.Channel) *model.Post {
 		CreateAt:  model.GetMillis() - 10000,
 	}
 
+	for _, option := range postOptions {
+		option(post)
+	}
+
 	var err *model.AppError
 	if post, err = th.App.CreatePost(th.Context, post, channel, model.CreatePostFlags{SetOnline: true}); err != nil {
 		panic(err)
@@ -772,6 +780,41 @@ func (th *TestHelper) AddPermissionToRole(permission string, roleName string) {
 	}
 }
 
+func (th *TestHelper) CreateFileInfo(userId, postId, channelId string) *model.FileInfo {
+	fileInfo := &model.FileInfo{
+		Id:        model.NewId(),
+		CreatorId: userId,
+		PostId:    postId,
+		ChannelId: channelId,
+		CreateAt:  model.GetMillis(),
+		Name:      model.NewRandomString(10),
+		Path:      model.NewRandomString(50),
+	}
+
+	createdFileInfo, err := th.App.Srv().Store().FileInfo().Save(th.Context, fileInfo)
+	if err != nil {
+		panic(err)
+	}
+
+	return createdFileInfo
+}
+
+func (th *TestHelper) PostPatch(post *model.Post, message string, options ...PostPatchOptions) *model.Post {
+	postPatch := &model.PostPatch{
+		Message: model.NewPointer(message),
+	}
+	for _, optionFunc := range options {
+		optionFunc(postPatch)
+	}
+
+	updatedPost, appErr := th.App.PatchPost(th.Context, post.Id, postPatch, nil)
+	if appErr != nil {
+		panic(appErr)
+	}
+
+	return updatedPost
+}
+
 // This function is copy of storetest/NewTestId
 // NewTestId is used for testing as a replacement for model.NewId(). It is a [A-Z0-9] string 26
 // characters long. It replaces every odd character with a digit.