Added a new layer: engine (equivalent to use cases in Clean Architecture). Should make testing things easier

api/get_music_folders.go

@@ -2,22 +2,22 @@ package api
 
 import (
 	"github.com/deluan/gosonic/api/responses"
-	"github.com/deluan/gosonic/domain"
+	"github.com/deluan/gosonic/engine"
 	"github.com/deluan/gosonic/utils"
 	"github.com/karlkfi/inject"
 )
 
 type GetMusicFoldersController struct {
 	BaseAPIController
-	repo domain.MediaFolderRepository
+	browser engine.Browser
 }
 
 func (c *GetMusicFoldersController) Prepare() {
-	inject.ExtractAssignable(utils.Graph, &c.repo)
+	inject.ExtractAssignable(utils.Graph, &c.browser)
 }
 
 func (c *GetMusicFoldersController) Get() {
-	mediaFolderList, _ := c.repo.GetAll()
+	mediaFolderList, _ := c.browser.MediaFolders()
 	folders := make([]responses.MusicFolder, len(mediaFolderList))
 	for i, f := range mediaFolderList {
 		folders[i].Id = f.Id