[MM-22133] Allow exporting and importing archived channels (#23724)

server/channels/store/store.go

@@ -192,6 +192,7 @@ type ChannelStore interface {
 	GetByName(team_id string, name string, allowFromCache bool) (*model.Channel, error)
 	GetByNames(team_id string, names []string, allowFromCache bool) ([]*model.Channel, error)
 	GetByNameIncludeDeleted(team_id string, name string, allowFromCache bool) (*model.Channel, error)
+	GetByNamesIncludeDeleted(team_id string, names []string, allowFromCache bool) ([]*model.Channel, error)
 	GetDeletedByName(team_id string, name string) (*model.Channel, error)
 	GetDeleted(team_id string, offset int, limit int, userID string) (model.ChannelList, error)
 	GetChannels(teamID, userID string, opts *model.ChannelSearchOpts) (model.ChannelList, error)
@@ -285,7 +286,7 @@ type ChannelStore interface {
 	DeleteSidebarCategory(categoryID string) error
 	GetAllChannelsForExportAfter(limit int, afterID string) ([]*model.ChannelForExport, error)
 	GetAllDirectChannelsForExportAfter(limit int, afterID string) ([]*model.DirectChannelForExport, error)
-	GetChannelMembersForExport(userID string, teamID string) ([]*model.ChannelMemberForExport, error)
+	GetChannelMembersForExport(userID string, teamID string, includeArchivedChannel bool) ([]*model.ChannelMemberForExport, error)
 	RemoveAllDeactivatedMembers(channelID string) error
 	GetChannelsBatchForIndexing(startTime int64, startChannelID string, limit int) ([]*model.Channel, error)
 	UserBelongsToChannels(userID string, channelIds []string) (bool, error)
@@ -379,7 +380,7 @@ type PostStore interface {
 	PermanentDeleteBatch(endTime int64, limit int64) (int64, error)
 	GetOldest() (*model.Post, error)
 	GetMaxPostSize() int
-	GetParentsForExportAfter(limit int, afterID string) ([]*model.PostForExport, error)
+	GetParentsForExportAfter(limit int, afterID string, includeArchivedChannels bool) ([]*model.PostForExport, error)
 	GetRepliesForExport(parentID string) ([]*model.ReplyForExport, error)
 	GetDirectPostParentsForExportAfter(limit int, afterID string) ([]*model.DirectPostForExport, error)
 	SearchPostsForUser(paramsList []*model.SearchParams, userID, teamID string, page, perPage int) (*model.PostSearchResults, error)