MM-17468 - Improve thread fetching (#13653)

* Revert "Thread fetching revert (#13616)"

This reverts commit 8e0fe90897.

* renamed query param for clarity

Co-authored-by: mattermod <mattermod@users.noreply.github.com>

model/post.go

@@ -74,7 +74,6 @@ type Post struct {
 	OriginalId string `json:"original_id"`
 
 	Message string `json:"message"`
-
 	// MessageSource will contain the message as submitted by the user if Message has been modified
 	// by Mattermost for presentation (e.g if an image proxy is being used). It should be used to
 	// populate edit boxes if present.
@@ -89,7 +88,8 @@ type Post struct {
 	HasReactions  bool            `json:"has_reactions,omitempty"`
 
 	// Transient data populated before sending a post to the client
-	Metadata *PostMetadata `json:"metadata,omitempty" db:"-"`
+	ReplyCount int64         `json:"reply_count" db:"-"`
+	Metadata   *PostMetadata `json:"metadata,omitempty" db:"-"`
 }
 
 type PostEphemeral struct {
@@ -171,6 +171,20 @@ func (o *Post) ToUnsanitizedJson() string {
 	return string(b)
 }
 
+type GetPostsSinceOptions struct {
+	ChannelId        string
+	Time             int64
+	SkipFetchThreads bool
+}
+
+type GetPostsOptions struct {
+	ChannelId        string
+	PostId           string
+	Page             int
+	PerPage          int
+	SkipFetchThreads bool
+}
+
 func PostFromJson(data io.Reader) *Post {
 	var o *Post
 	json.NewDecoder(data).Decode(&o)