[MM-44084] Feature: Top threads insights (#20195)

* Add route endpoints, model, store functions, and tests for top threads

* Run make store-layers

* Make the following changes

 - Fix top user threads query
 - Fix passing parameters in api4/insights.go to handler in app
 - Add top user threads test

* Add post-message, user_id, participants information to insights results

* model.TopThread.UserID -> model.TopThread.UserId, for compatibility with MySQL

* Rename name -> channel_name

* Add user information to response

* Link post in response, filter out deleted root posts from top threads

* Handle thread delete cases, add app tests for threads insights

* lint: fix typo

* lint: rename asserts

* lint: require.nil -> require.NoError

* Add integration tests for thread insights

* Add embeds and images to top posts

* Add license checks for top threads endpoints

* Query users in batch to populate post-creator

* Make the following changes

 - Add license to test server in api4/
 - Add tests for threads insights
    - top team threads shouldn't include threads from other teams, DMs
    - Test duration constraint
    - Pagination testing for top threads in model/insights_test.go

* Add i18n-extract

* i18n fixes

* Add username, nickname to user_information

* Hide message, user_id, post_id, reply_count in depth=1 of top threads response

* Fix tests using response.reply_count to use response.post.reply_count

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

model/client4.go

@@ -4172,6 +4172,41 @@ func (c *Client4) DoPostActionWithCookie(postId, actionId, selected, cookieStr s
 	return BuildResponse(r), nil
 }
 
+// GetTopThreadsForTeamSince will return an ordered list of the top channels in a given team.
+func (c *Client4) GetTopThreadsForTeamSince(teamId string, timeRange string, page int, perPage int) (*TopThreadList, *Response, error) {
+	query := fmt.Sprintf("?time_range=%v&page=%v&per_page=%v", timeRange, page, perPage)
+	r, err := c.DoAPIGet(c.teamRoute(teamId)+"/top/threads"+query, "")
+	if err != nil {
+		return nil, BuildResponse(r), err
+	}
+	defer closeBody(r)
+	var topThreads *TopThreadList
+	if jsonErr := json.NewDecoder(r.Body).Decode(&topThreads); jsonErr != nil {
+		return nil, nil, NewAppError("GetTopThreadsForTeamSince", "api.unmarshal_error", nil, jsonErr.Error(), http.StatusInternalServerError)
+	}
+	return topThreads, BuildResponse(r), nil
+}
+
+// GetTopThreadsForUserSince will return an ordered list of your top channels in a given team.
+func (c *Client4) GetTopThreadsForUserSince(teamId string, timeRange string, page int, perPage int) (*TopThreadList, *Response, error) {
+	query := fmt.Sprintf("?time_range=%v&page=%v&per_page=%v", timeRange, page, perPage)
+
+	if teamId != "" {
+		query += fmt.Sprintf("&team_id=%v", teamId)
+	}
+
+	r, err := c.DoAPIGet(c.usersRoute()+"/me/top/threads"+query, "")
+	if err != nil {
+		return nil, BuildResponse(r), err
+	}
+	defer closeBody(r)
+	var topThreads *TopThreadList
+	if jsonErr := json.NewDecoder(r.Body).Decode(&topThreads); jsonErr != nil {
+		return nil, nil, NewAppError("GetTopThreadsForUserSince", "api.unmarshal_error", nil, jsonErr.Error(), http.StatusInternalServerError)
+	}
+	return topThreads, BuildResponse(r), nil
+}
+
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