WIP Implement the video adapter to merge FS files and DB files.

backend/application/src/video/service.rs

@@ -5,7 +5,7 @@ use std::io::{BufRead, BufReader};
 use std::path::Path;
 use std::io::Read;
 use lumiere_domain::video::error::VideoError;
-use lumiere_domain::video::model::library_item::{LibraryItem, ReadLibraryItem};
+use lumiere_domain::video::model::library_item::{LibraryItem, LibraryRawItem};
 use lumiere_domain::video::port::VideoPort;
 
 #[derive(Clone)]
@@ -21,7 +21,7 @@ impl VideoService {
     pub fn list_root_folder(self) -> Result<Vec<LibraryItem>, VideoError> {
         let read_items_with_possibly_no_id = self.video_port.list_root_folder()?;
         let items_with_id = read_items_with_possibly_no_id.iter()
-            .map(ReadLibraryItem::map_to_library_item)
+            .map(LibraryRawItem::map_to_library_item)
             .collect();
         self.video_port.save_all(items_with_id);
         Ok(items_with_id)

backend/domain/src/video/model/library_item.rs

@@ -12,12 +12,12 @@ pub struct LibraryItem {
     pub r#type: LibraryItemType,
 }
 
-pub struct ReadLibraryItem {
+pub struct LibraryRawItem {
     pub id: Option<Uuid>,
     pub name: String,
     pub r#type: LibraryItemType,
 }
-impl ReadLibraryItem {
+impl LibraryRawItem {
     pub fn map_to_library_item(&self) -> LibraryItem {
         LibraryItem {
             id: self.id.unwrap_or(Uuid::new_v4()),

backend/domain/src/video/port.rs

@@ -1,11 +1,11 @@
 use uuid::Uuid;
 use crate::video::error::VideoError;
-use crate::video::model::library_item::{LibraryItem, ReadLibraryItem};
+use crate::video::model::library_item::{LibraryItem, LibraryRawItem};
 use crate::video::model::video::Video;
 
 pub trait VideoPort: Send + Sync {
-    fn list_root_folder(&self) -> Result<Vec<ReadLibraryItem>, VideoError>;
-    fn list_folder(&self, folder_id: Uuid) -> Result<Vec<ReadLibraryItem>, VideoError>;
+    fn list_root_folder(&self) -> Result<Vec<LibraryRawItem>, VideoError>;
+    fn list_folder(&self, folder_id: Uuid) -> Result<Vec<LibraryRawItem>, VideoError>;
     fn get_video_stream(&self, video_id: Uuid) -> Result<Video, VideoError>;
     fn save(&self, library_item: &LibraryItem) -> Result<(), VideoError>;
     fn clone_box(&self) -> Box<dyn VideoPort>;

backend/infrastructure/src/video/adapter.rs

@@ -1,8 +1,10 @@
 use lumiere_domain::video::error::VideoError;
-use lumiere_domain::video::model::library_item::{LibraryItem, ReadLibraryItem};
+use lumiere_domain::video::model::library_item::{LibraryItem, LibraryRawItem};
 use lumiere_domain::video::model::video::Video;
 use lumiere_domain::video::port::VideoPort;
 use uuid::Uuid;
+use std::env;
+use std::fs;
 
 pub struct VideoAdapter {
 
@@ -13,21 +15,18 @@ impl VideoAdapter {
         Self {}
     }
 
-    pub fn get_root_folder_read_library_items(&self) -> Result<Vec<ReadLibraryItem>, VideoError> {
-        use std::env;
-        use std::fs;
-        
+    fn get_root_folder_read_library_items(&self) -> Result<Vec<LibraryRawItem>, VideoError> {
         // Get the root_folder path from environment variable
-        let root_folder = env::var("ROOT_FOLDER").map_err(|_| VideoError::ConfigurationError("ROOT_FOLDER environment variable not set"))?;
+        let root_folder = env::var("ROOT_FOLDER").map_err(|_| VideoError::FolderBrowsingTechnicalIssue)?;
         
         // List all elements inside this folder on the file system
         let entries = fs::read_dir(root_folder)
-            .map_err(|e| VideoError::FileSystemError(e.to_string()))?;
+            .map_err(|e| VideoError::FolderBrowsingTechnicalIssue)?;
         
         // Map all those elements into ReadLibraryItem objects
-        let mut items: Vec<ReadLibraryItem> = Vec::new();
+        let mut items: Vec<LibraryRawItem> = Vec::new();
         for entry in entries {
-            let entry = entry.map_err(|e| VideoError::FileSystemError(e.to_string()))?;
+            let entry = entry.map_err(|e| VideoError::FolderBrowsingTechnicalIssue)?;
             let path = entry.path();
             
             // Determine if it's a file or directory
@@ -39,7 +38,7 @@ impl VideoAdapter {
             };
             
             // Create ReadLibraryItem with None for ID (will be generated later)
-            let item = ReadLibraryItem {
+            let item = LibraryRawItem {
                 id: None,
                 name: entry.file_name().to_string_lossy().into_owned(),
                 r#type: item_type,
@@ -51,46 +50,45 @@ impl VideoAdapter {
         Ok(items)
     }
 
-    pub fn get_all_library_items_from_db(&self) -> Result<Vec<ReadLibraryItem>, VideoError> {
-        todo!()
+    pub fn get_all_library_items_from_db(&self) -> Result<Vec<LibraryRawItem>, VideoError> {
+        Ok(vec!())
+    }
+
+    fn merge_item_lists(file_system_items: Vec<LibraryRawItem>, db_items: Vec<LibraryRawItem>) -> Vec<LibraryRawItem> {
+        let mut all_items: Vec<LibraryRawItem> = Vec::new();
+
+        db_items.iter().for_each(|item| all_items.push(*item));
+
+        file_system_items.iter()
+            .filter(|file_system_item| Self::does_item_belong_to_db_items(&db_items, file_system_item))
+            .for_each(|file_system_item| all_items.push(*file_system_item));
+
+        all_items
+    }
+
+    fn does_item_belong_to_db_items(database_items: &Vec<LibraryRawItem>, file_system_item: &LibraryRawItem) -> bool {
+        database_items.iter()
+            .any(|database_item| {
+                if let Some(item_id) = file_system_item.id {
+                    database_item.id == Some(item_id)
+                } else {
+                    false
+                }
+            })
     }
 }
 
 impl VideoPort for VideoAdapter {
-    fn list_root_folder(&self) -> Result<Vec<ReadLibraryItem>, VideoError> {
-        use std::thread;
-        
-        // In parallel: call both methods
+    fn list_root_folder(&self) -> Result<Vec<LibraryRawItem>, VideoError> {
         let file_system_items = self.get_root_folder_read_library_items()?;
         let db_items = self.get_all_library_items_from_db()?;
 
-        // Merge the two lists. If an item from files has the same id as one from DB, use the DB version
-        let mut merged: Vec<ReadLibraryItem> = Vec::new();
-        
-        // First add all DB items (they have IDs)
-        for db_item in db_items {
-            merged.push(db_item);
-        }
-        
-        // Then add file system items only if they don't exist in DB
-        for fs_item in file_system_items {
-            let exists_in_db = merged.iter().any(|db_item| {
-                if let Some(fs_id) = fs_item.id {
-                    db_item.id == Some(fs_id)
-                } else {
-                    false
-                }
-            });
-            
-            if !exists_in_db {
-                merged.push(fs_item);
-            }
-        }
+        let merged = Self::merge_item_lists(file_system_items, db_items);
         
         Ok(merged)
     }
 
-    fn list_folder(&self, folder_id: Uuid) -> Result<Vec<ReadLibraryItem>, VideoError> {
+    fn list_folder(&self, folder_id: Uuid) -> Result<Vec<LibraryRawItem>, VideoError> {
         todo!()
     }