Refacto get_root_folder_read_library_items.

backend/infrastructure/src/video/adapter.rs

@@ -6,6 +6,8 @@ use uuid::Uuid;
 use std::env;
 use std::fs;
 use std::fs::DirEntry;
+use lumiere_domain::video::model::video::VideoFormat::{AVI, MKV, MP4, WEBM};
+use crate::video::video_format_detector::get_content_type;
 
 #[derive(Clone)]
 pub struct VideoAdapter {
@@ -24,13 +26,21 @@ impl VideoAdapter {
             .map_err(|_| VideoError::FolderBrowsingTechnicalIssue)?;
 
         root_folder_files.into_iter()
-            .map(|file_entry|
-                file_entry.map_err(|_| VideoError::FolderBrowsingTechnicalIssue)
-                    .and_then(Self::map_file_into_library_raw_item)
-            )
+            .flat_map(Result::ok)
+            .filter(Self::file_is_video_or_folder)
+            .map(Self::map_file_into_library_raw_item)
             .collect()
     }
 
+    fn file_is_video_or_folder(file_entry: &DirEntry) -> bool {
+        if file_entry.path().is_dir() {
+            true
+        } else {
+            let content_type = get_content_type(&file_entry.path());
+            matches!(content_type, AVI | MKV | MP4 | WEBM)
+        }
+    }
+
     fn map_file_into_library_raw_item(file: DirEntry) -> Result<LibraryRawItem, VideoError> {
         let item_type = if file.path().is_dir() {
             LibraryItemType::FOLDER