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>

api4/post.go

@@ -148,6 +148,7 @@ func getPostsForChannel(c *Context, w http.ResponseWriter, r *http.Request) {
 			return
 		}
 	}
+	skipFetchThreads := r.URL.Query().Get("skipFetchThreads") == "true"
 
 	channelId := c.Params.ChannelId
 	page := c.Params.Page
@@ -163,7 +164,7 @@ func getPostsForChannel(c *Context, w http.ResponseWriter, r *http.Request) {
 	etag := ""
 
 	if since > 0 {
-		list, err = c.App.GetPostsSince(channelId, since)
+		list, err = c.App.GetPostsSince(model.GetPostsSinceOptions{ChannelId: channelId, Time: since, SkipFetchThreads: skipFetchThreads})
 	} else if len(afterPost) > 0 {
 		etag = c.App.GetPostsEtag(channelId)
 
@@ -171,7 +172,7 @@ func getPostsForChannel(c *Context, w http.ResponseWriter, r *http.Request) {
 			return
 		}
 
-		list, err = c.App.GetPostsAfterPost(channelId, afterPost, page, perPage)
+		list, err = c.App.GetPostsAfterPost(model.GetPostsOptions{ChannelId: channelId, PostId: afterPost, Page: page, PerPage: perPage, SkipFetchThreads: skipFetchThreads})
 	} else if len(beforePost) > 0 {
 		etag = c.App.GetPostsEtag(channelId)
 
@@ -179,7 +180,7 @@ func getPostsForChannel(c *Context, w http.ResponseWriter, r *http.Request) {
 			return
 		}
 
-		list, err = c.App.GetPostsBeforePost(channelId, beforePost, page, perPage)
+		list, err = c.App.GetPostsBeforePost(model.GetPostsOptions{ChannelId: channelId, PostId: beforePost, Page: page, PerPage: perPage, SkipFetchThreads: skipFetchThreads})
 	} else {
 		etag = c.App.GetPostsEtag(channelId)
 
@@ -187,7 +188,7 @@ func getPostsForChannel(c *Context, w http.ResponseWriter, r *http.Request) {
 			return
 		}
 
-		list, err = c.App.GetPostsPage(channelId, page, perPage)
+		list, err = c.App.GetPostsPage(model.GetPostsOptions{ChannelId: channelId, Page: page, PerPage: perPage, SkipFetchThreads: skipFetchThreads})
 	}
 
 	if err != nil {
@@ -223,7 +224,8 @@ func getPostsForChannelAroundLastUnread(c *Context, w http.ResponseWriter, r *ht
 		return
 	}
 
-	postList, err := c.App.GetPostsForChannelAroundLastUnread(channelId, userId, c.Params.LimitBefore, c.Params.LimitAfter)
+	skipFetchThreads := r.URL.Query().Get("skipFetchThreads") == "true"
+	postList, err := c.App.GetPostsForChannelAroundLastUnread(channelId, userId, c.Params.LimitBefore, c.Params.LimitAfter, skipFetchThreads)
 	if err != nil {
 		c.Err = err
 		return
@@ -237,7 +239,7 @@ func getPostsForChannelAroundLastUnread(c *Context, w http.ResponseWriter, r *ht
 			return
 		}
 
-		postList, err = c.App.GetPostsPage(channelId, app.PAGE_DEFAULT, c.Params.LimitBefore)
+		postList, err = c.App.GetPostsPage(model.GetPostsOptions{ChannelId: channelId, Page: app.PAGE_DEFAULT, PerPage: c.Params.LimitBefore, SkipFetchThreads: skipFetchThreads})
 		if err != nil {
 			c.Err = err
 			return
@@ -391,8 +393,8 @@ func getPostThread(c *Context, w http.ResponseWriter, r *http.Request) {
 	if c.Err != nil {
 		return
 	}
-
-	list, err := c.App.GetPostThread(c.Params.PostId)
+	skipFetchThreads := r.URL.Query().Get("skipFetchThreads") == "true"
+	list, err := c.App.GetPostThread(c.Params.PostId, skipFetchThreads)
 	if err != nil {
 		c.Err = err
 		return