Implemented #3, nested categories for Discourse

system/discourse/api/categories.go

@@ -79,6 +79,10 @@ func (a *CategoryServiceHandler) List(
 		return nil, err
 	}
 
+	q := req.URL.Query()
+	q.Add("include_subcategories", "true")
+	req.URL.RawQuery = q.Encode()
+
 	response := new(LatestCategoriesResponse)
 	if err = a.client.Do(ctx, req, response); err != nil {
 		return nil, err

system/discourse/discourse.go

@@ -132,20 +132,38 @@ func (sys *System) ListForums() ([]forum.Forum, error) {
 		return []forum.Forum{}, err
 	}
 
-	for _, cat := range cats.CategoryList.Categories {
-		models = append(models, forum.Forum{
-			ID:   strconv.Itoa(cat.ID),
-			Name: cat.Name,
-
-			Info: cat.Description,
-
-			SysIDX: sys.ID,
-		})
-	}
+	models = sys.recurseForums(&cats.CategoryList.Categories, nil)
 
 	return models, nil
 }
 
+func (sys *System) recurseForums(cats *[]api.CategoryModel, parent *forum.Forum) []forum.Forum {
+	var models []forum.Forum
+
+	sys.logger.Debugf("recursing categories: %d\n", len(*cats))
+	for i := 0; i < len(*cats); i++ {
+		sys.logger.Debugf("adding category: %s\n", (*cats)[i].Name)
+
+		var name = (*cats)[i].Name
+		if parent != nil {
+			name = fmt.Sprintf("%s / %s", parent.Name, name)
+		}
+		f := forum.Forum{
+			ID:   strconv.Itoa((*cats)[i].ID),
+			Name: name,
+
+			Info: (*cats)[i].Description,
+
+			SysIDX: sys.ID,
+		}
+		models = append(models, f)
+
+		models = append(models, sys.recurseForums(&(*cats)[i].SubcategoryList, &f)...)
+	}
+
+	return models
+}
+
 func (sys *System) ListPosts(forumID string) ([]post.Post, error) {
 	var catSlug string = ""
 	var catID int = -1