fix auth errors and add primigenial paper trash

src/application/services/folder_service.rs

@@ -94,7 +94,7 @@ impl FolderUseCase for FolderService {
         // Crear la carpeta
         let folder = self.folder_storage.create_folder(dto.name, dto.parent_id)
             .await
-            .with_context(|| "Failed to create folder")?;
+            .map_err(|e| DomainError::internal_error("FolderStorage", format!("Failed to create folder: {}", e)))?;
         
         // Convertir a DTO
         Ok(FolderDto::from(folder))
@@ -104,7 +104,7 @@ impl FolderUseCase for FolderService {
     async fn get_folder(&self, id: &str) -> Result<FolderDto, DomainError> {
         let folder = self.folder_storage.get_folder(id)
             .await
-            .with_context(|| format!("Failed to get folder with ID: {}", id))?;
+            .map_err(|e| DomainError::internal_error("FolderStorage", format!("Failed to get folder with ID: {}: {}", id, e)))?;
         
         Ok(FolderDto::from(folder))
     }
@@ -116,7 +116,7 @@ impl FolderUseCase for FolderService {
         
         let folder = self.folder_storage.get_folder_by_path(&storage_path)
             .await
-            .with_context(|| format!("Failed to get folder at path: {}", path))?;
+            .map_err(|e| DomainError::internal_error("FolderStorage", format!("Failed to get folder at path: {}: {}", path, e)))?;
         
         Ok(FolderDto::from(folder))
     }
@@ -125,7 +125,7 @@ impl FolderUseCase for FolderService {
     async fn list_folders(&self, parent_id: Option<&str>) -> Result<Vec<FolderDto>, DomainError> {
         let folders = self.folder_storage.list_folders(parent_id)
             .await
-            .with_context(|| format!("Failed to list folders in parent: {:?}", parent_id))?;
+            .map_err(|e| DomainError::internal_error("FolderStorage", format!("Failed to list folders in parent: {:?}: {}", parent_id, e)))?;
         
         // Convertir a DTOs
         Ok(folders.into_iter().map(FolderDto::from).collect())
@@ -148,7 +148,7 @@ impl FolderUseCase for FolderService {
             true // Siempre incluir total para mejor UX
         )
         .await
-        .with_context(|| format!("Failed to list folders with pagination in parent: {:?}", parent_id))?;
+        .map_err(|e| DomainError::internal_error("FolderStorage", format!("Failed to list folders with pagination in parent: {:?}: {}", parent_id, e)))?;
         
         // El total es necesario para calcular la paginación
         let total = total_items.unwrap_or(folders.len());
@@ -178,7 +178,7 @@ impl FolderUseCase for FolderService {
         // Verificar que la carpeta existe
         let existing_folder = self.folder_storage.get_folder(id)
             .await
-            .with_context(|| format!("Failed to get folder with ID: {} for renaming", id))?;
+            .map_err(|e| DomainError::internal_error("FolderStorage", format!("Failed to get folder with ID: {} for renaming: {}", id, e)))?;
         
         // Crear transacción para renombrar
         let mut transaction = StorageTransaction::new("rename_folder");
@@ -220,7 +220,7 @@ impl FolderUseCase for FolderService {
         // Obtener la carpeta renombrada
         let folder = self.folder_storage.get_folder(id)
             .await
-            .with_context(|| format!("Failed to get renamed folder with ID: {}", id))?;
+            .map_err(|e| DomainError::internal_error("FolderStorage", format!("Failed to get renamed folder with ID: {}: {}", id, e)))?;
         
         Ok(FolderDto::from(folder))
     }
@@ -230,7 +230,7 @@ impl FolderUseCase for FolderService {
         // Verificar que la carpeta origen existe
         let source_folder = self.folder_storage.get_folder(id)
             .await
-            .with_context(|| format!("Failed to get folder with ID: {} for moving", id))?;
+            .map_err(|e| DomainError::internal_error("FolderStorage", format!("Failed to get folder with ID: {} for moving: {}", id, e)))?;
         
         // Si se especifica un parent_id, verificar que existe
         if let Some(parent_id) = &dto.parent_id {
@@ -295,7 +295,7 @@ impl FolderUseCase for FolderService {
         // Obtener la carpeta movida
         let folder = self.folder_storage.get_folder(id)
             .await
-            .with_context(|| format!("Failed to get moved folder with ID: {}", id))?;
+            .map_err(|e| DomainError::internal_error("FolderStorage", format!("Failed to get moved folder with ID: {}: {}", id, e)))?;
         
         Ok(FolderDto::from(folder))
     }
@@ -305,13 +305,13 @@ impl FolderUseCase for FolderService {
         // Verificar que la carpeta existe
         let _folder = self.folder_storage.get_folder(id)
             .await
-            .with_context(|| format!("Failed to get folder with ID: {} for deletion", id))?;
+            .map_err(|e| DomainError::internal_error("FolderStorage", format!("Failed to get folder with ID: {} for deletion: {}", id, e)))?;
         
         // En una implementación real, podríamos verificar permisos, dependencias, etc.
         
         // Eliminar la carpeta
         self.folder_storage.delete_folder(id)
             .await
-            .with_context(|| format!("Failed to delete folder with ID: {}", id))
+            .map_err(|e| DomainError::internal_error("FolderStorage", format!("Failed to delete folder with ID: {}: {}", id, e)))
     }
 }

src/application/services/mod.rs

@@ -10,9 +10,14 @@ pub mod file_retrieval_service;
 pub mod file_management_service;
 pub mod file_use_case_factory;
 pub mod auth_application_service;
+pub mod trash_service;
+
+#[cfg(test)]
+mod trash_service_test;
 
 // Re-exportar para facilitar acceso
 pub use file_upload_service::FileUploadService;
 pub use file_retrieval_service::FileRetrievalService;
 pub use file_management_service::FileManagementService;
 pub use file_use_case_factory::AppFileUseCaseFactory;
+pub use trash_service::TrashService;

src/application/services/storage_mediator.rs

@@ -192,6 +192,19 @@ impl FolderRepository for FolderRepositoryStub {
     async fn get_folder_by_path(&self, _path: &std::path::PathBuf) -> Result<Folder, FolderRepositoryError> {
         Err(FolderRepositoryError::Other("Stub repository".to_string()))
     }
+    
+    // Trash functionality stubs
+    async fn move_to_trash(&self, _folder_id: &str) -> Result<(), FolderRepositoryError> {
+        Err(FolderRepositoryError::OperationNotSupported("Trash feature temporarily disabled".to_string()))
+    }
+    
+    async fn restore_from_trash(&self, _folder_id: &str, _original_path: &str) -> Result<(), FolderRepositoryError> {
+        Err(FolderRepositoryError::OperationNotSupported("Trash feature temporarily disabled".to_string()))
+    }
+    
+    async fn delete_folder_permanently(&self, _folder_id: &str) -> Result<(), FolderRepositoryError> {
+        Err(FolderRepositoryError::OperationNotSupported("Trash feature temporarily disabled".to_string()))
+    }
 }
 
 /// Stub implementation for initialization dependency issues

src/application/services/trash_service.rs

@@ -0,0 +1,299 @@
+use std::sync::Arc;
+use async_trait::async_trait;
+use uuid::Uuid;
+use tracing::{debug, error, info, instrument};
+
+use crate::application::dtos::trash_dto::TrashedItemDto;
+use crate::application::ports::trash_ports::TrashUseCase;
+use crate::common::errors::{Result, DomainError, ErrorKind};
+use crate::domain::entities::trashed_item::{TrashedItem, TrashedItemType};
+use crate::domain::repositories::file_repository::{FileRepository, FileRepositoryResult};
+use crate::domain::repositories::folder_repository::{FolderRepository, FolderRepositoryResult};
+use crate::domain::repositories::trash_repository::TrashRepository;
+
+/// Servicio de aplicación para operaciones de papelera
+pub struct TrashService {
+    trash_repository: Arc<dyn TrashRepository>,
+    file_repository: Arc<dyn FileRepository>,
+    folder_repository: Arc<dyn FolderRepository>,
+    retention_days: u32,
+}
+
+impl TrashService {
+    pub fn new(
+        trash_repository: Arc<dyn TrashRepository>,
+        file_repository: Arc<dyn FileRepository>,
+        folder_repository: Arc<dyn FolderRepository>,
+        retention_days: u32,
+    ) -> Self {
+        Self {
+            trash_repository,
+            file_repository,
+            folder_repository,
+            retention_days,
+        }
+    }
+
+    /// Convierte una entidad TrashedItem a un DTO
+    fn to_dto(&self, item: TrashedItem) -> TrashedItemDto {
+        // Calcular days_until_deletion antes de mover item.original_path
+        let days_until_deletion = item.days_until_deletion();
+        
+        TrashedItemDto {
+            id: item.id.to_string(),
+            original_id: item.original_id.to_string(),
+            item_type: match item.item_type {
+                TrashedItemType::File => "file".to_string(),
+                TrashedItemType::Folder => "folder".to_string(),
+            },
+            name: item.name,
+            original_path: item.original_path,
+            trashed_at: item.trashed_at,
+            days_until_deletion,
+        }
+    }
+
+    /// Valida los permisos del usuario sobre un elemento
+    #[instrument(skip(self))]
+    async fn validate_user_ownership(&self, _item_id: &str, _user_id: &str) -> Result<()> {
+        // Aquí implementaríamos la validación de permisos
+        // Por ahora, simplemente devolvemos Ok ya que no tenemos una implementación completa
+        // de permisos por usuario
+        Ok(())
+    }
+}
+
+#[async_trait]
+impl TrashUseCase for TrashService {
+    #[instrument(skip(self))]
+    async fn get_trash_items(&self, user_id: &str) -> Result<Vec<TrashedItemDto>> {
+        debug!("Obteniendo elementos en papelera para usuario: {}", user_id);
+        
+        let user_uuid = Uuid::parse_str(user_id)
+            .map_err(|e| DomainError::validation_error("User", format!("Invalid user ID: {}", e)))?;
+            
+        let items = self.trash_repository.get_trash_items(&user_uuid).await?;
+        
+        let dtos = items.into_iter()
+            .map(|item| self.to_dto(item))
+            .collect();
+            
+        Ok(dtos)
+    }
+
+    #[instrument(skip(self))]
+    async fn move_to_trash(&self, item_id: &str, item_type: &str, user_id: &str) -> Result<()> {
+        info!("Moviendo a papelera: tipo={}, id={}, usuario={}", item_type, item_id, user_id);
+        
+        self.validate_user_ownership(item_id, user_id).await?;
+        
+        let item_uuid = Uuid::parse_str(item_id)
+            .map_err(|e| DomainError::validation_error("Item", format!("Invalid item ID: {}", e)))?;
+            
+        let user_uuid = Uuid::parse_str(user_id)
+            .map_err(|e| DomainError::validation_error("User", format!("Invalid user ID: {}", e)))?;
+        
+        match item_type {
+            "file" => {
+                // Obtener el archivo para verificar que existe y capturar sus datos
+                let file = self.file_repository.get_file_by_id(item_id).await
+                    .map_err(|e| DomainError::new(
+                        ErrorKind::NotFound,
+                        "File",
+                        format!("Error retrieving file {}: {}", item_id, e)
+                    ))?;
+                
+                let original_path = file.storage_path().to_string();
+                
+                // Crear el elemento de papelera
+                let trashed_item = TrashedItem::new(
+                    item_uuid,
+                    user_uuid,
+                    TrashedItemType::File,
+                    file.name().to_string(),
+                    original_path,
+                    self.retention_days,
+                );
+                
+                // Primero añadimos a la papelera para registrar el elemento
+                self.trash_repository.add_to_trash(&trashed_item).await?;
+                
+                // Luego movemos el archivo físicamente a la papelera
+                self.file_repository.move_to_trash(item_id).await
+                    .map_err(|e| DomainError::new(
+                        ErrorKind::InternalError,
+                        "File",
+                        format!("Error moving file {} to trash: {}", item_id, e)
+                    ))?;
+                
+                debug!("Archivo movido a papelera: {}", item_id);
+                Ok(())
+            },
+            "folder" => {
+                // Obtener la carpeta para verificar que existe y capturar sus datos
+                let folder = self.folder_repository.get_folder_by_id(item_id).await
+                    .map_err(|e| DomainError::new(
+                        ErrorKind::NotFound,
+                        "Folder",
+                        format!("Error retrieving folder {}: {}", item_id, e)
+                    ))?;
+                
+                let original_path = folder.storage_path().to_string();
+                
+                // Crear el elemento de papelera
+                let trashed_item = TrashedItem::new(
+                    item_uuid,
+                    user_uuid,
+                    TrashedItemType::Folder,
+                    folder.name().to_string(),
+                    original_path,
+                    self.retention_days,
+                );
+                
+                // Primero añadimos a la papelera para registrar el elemento
+                self.trash_repository.add_to_trash(&trashed_item).await?;
+                
+                // Luego movemos la carpeta físicamente a la papelera
+                self.folder_repository.move_to_trash(item_id).await
+                    .map_err(|e| DomainError::new(
+                        ErrorKind::InternalError,
+                        "Folder",
+                        format!("Error moving folder {} to trash: {}", item_id, e)
+                    ))?;
+                
+                debug!("Carpeta movida a papelera: {}", item_id);
+                Ok(())
+            },
+            _ => Err(DomainError::validation_error("Item", format!("Invalid item type: {}", item_type))),
+        }
+    }
+
+    #[instrument(skip(self))]
+    async fn restore_item(&self, trash_id: &str, user_id: &str) -> Result<()> {
+        info!("Restaurando elemento {} para usuario {}", trash_id, user_id);
+        
+        let trash_uuid = Uuid::parse_str(trash_id)
+            .map_err(|e| DomainError::validation_error("Trash", format!("Invalid trash ID: {}", e)))?;
+            
+        let user_uuid = Uuid::parse_str(user_id)
+            .map_err(|e| DomainError::validation_error("User", format!("Invalid user ID: {}", e)))?;
+        
+        // Obtener el elemento de la papelera
+        let item = self.trash_repository.get_trash_item(&trash_uuid, &user_uuid).await?
+            .ok_or_else(|| DomainError::not_found("TrashedItem", trash_id.to_string()))?;
+        
+        // Restaurar según tipo
+        match item.item_type {
+            TrashedItemType::File => {
+                // Restaurar el archivo a su ubicación original
+                let file_id = item.original_id.to_string();
+                self.file_repository.restore_from_trash(&file_id, &item.original_path).await
+                    .map_err(|e| DomainError::new(
+                        ErrorKind::InternalError,
+                        "File",
+                        format!("Error restoring file {} from trash: {}", file_id, e)
+                    ))?;
+                debug!("Archivo restaurado desde papelera: {}", file_id);
+            },
+            TrashedItemType::Folder => {
+                // Restaurar la carpeta a su ubicación original
+                let folder_id = item.original_id.to_string();
+                self.folder_repository.restore_from_trash(&folder_id, &item.original_path).await
+                    .map_err(|e| DomainError::new(
+                        ErrorKind::InternalError,
+                        "Folder",
+                        format!("Error restoring folder {} from trash: {}", folder_id, e)
+                    ))?;
+                debug!("Carpeta restaurada desde papelera: {}", folder_id);
+            }
+        }
+        
+        // Eliminar el item de la papelera
+        self.trash_repository.restore_from_trash(&trash_uuid, &user_uuid).await?;
+        
+        Ok(())
+    }
+
+    #[instrument(skip(self))]
+    async fn delete_permanently(&self, trash_id: &str, user_id: &str) -> Result<()> {
+        info!("Eliminando permanentemente elemento {} para usuario {}", trash_id, user_id);
+        
+        let trash_uuid = Uuid::parse_str(trash_id)
+            .map_err(|e| DomainError::validation_error("Trash", format!("Invalid trash ID: {}", e)))?;
+            
+        let user_uuid = Uuid::parse_str(user_id)
+            .map_err(|e| DomainError::validation_error("User", format!("Invalid user ID: {}", e)))?;
+        
+        // Obtener el elemento de la papelera
+        let item = self.trash_repository.get_trash_item(&trash_uuid, &user_uuid).await?
+            .ok_or_else(|| DomainError::not_found("TrashedItem", trash_id.to_string()))?;
+        
+        // Eliminar permanentemente según tipo
+        match item.item_type {
+            TrashedItemType::File => {
+                // Eliminar el archivo permanentemente
+                let file_id = item.original_id.to_string();
+                self.file_repository.delete_file_permanently(&file_id).await
+                    .map_err(|e| DomainError::new(
+                        ErrorKind::InternalError,
+                        "File",
+                        format!("Error deleting file {} permanently: {}", file_id, e)
+                    ))?;
+                debug!("Archivo eliminado permanentemente: {}", file_id);
+            },
+            TrashedItemType::Folder => {
+                // Eliminar la carpeta permanentemente
+                let folder_id = item.original_id.to_string();
+                self.folder_repository.delete_folder_permanently(&folder_id).await
+                    .map_err(|e| DomainError::new(
+                        ErrorKind::InternalError,
+                        "Folder",
+                        format!("Error deleting folder {} permanently: {}", folder_id, e)
+                    ))?;
+                debug!("Carpeta eliminada permanentemente: {}", folder_id);
+            }
+        }
+        
+        // Eliminar el item de la papelera
+        self.trash_repository.delete_permanently(&trash_uuid, &user_uuid).await?;
+        
+        Ok(())
+    }
+
+    #[instrument(skip(self))]
+    async fn empty_trash(&self, user_id: &str) -> Result<()> {
+        info!("Vaciando papelera para usuario {}", user_id);
+        
+        let user_uuid = Uuid::parse_str(user_id)
+            .map_err(|e| DomainError::validation_error("User", format!("Invalid user ID: {}", e)))?;
+        
+        // Obtener todos los elementos en la papelera del usuario
+        let items = self.trash_repository.get_trash_items(&user_uuid).await?;
+        
+        // Eliminar permanentemente cada elemento
+        for item in items {
+            match item.item_type {
+                TrashedItemType::File => {
+                    // Eliminar el archivo permanentemente
+                    let file_id = item.original_id.to_string();
+                    if let Err(e) = self.file_repository.delete_file_permanently(&file_id).await {
+                        error!("Error al eliminar archivo {} permanentemente: {}", file_id, e);
+                    }
+                },
+                TrashedItemType::Folder => {
+                    // Eliminar la carpeta permanentemente
+                    let folder_id = item.original_id.to_string();
+                    if let Err(e) = self.folder_repository.delete_folder_permanently(&folder_id).await {
+                        error!("Error al eliminar carpeta {} permanentemente: {}", folder_id, e);
+                    }
+                }
+            }
+        }
+        
+        // Limpiar todos los registros de la papelera para este usuario
+        self.trash_repository.clear_trash(&user_uuid).await?;
+        
+        info!("Papelera vaciada completamente para usuario {}", user_id);
+        Ok(())
+    }
+}

src/application/services/trash_service_test.rs

@@ -0,0 +1,496 @@
+use std::collections::HashMap;
+use std::sync::{Arc, Mutex};
+use chrono::Utc;
+use async_trait::async_trait;
+use uuid::Uuid;
+
+use crate::common::errors::{Result, DomainError};
+use crate::domain::entities::file::File;
+use crate::domain::entities::folder::Folder;
+use crate::domain::entities::trashed_item::{TrashedItem, TrashedItemType};
+use crate::domain::repositories::file_repository::{FileRepository, FileRepositoryResult};
+use crate::domain::repositories::folder_repository::{FolderRepository, FolderRepositoryResult};
+use crate::domain::repositories::trash_repository::TrashRepository;
+use crate::application::services::trash_service::TrashService;
+
+// Mock repositories for testing
+struct MockTrashRepository {
+    trash_items: Mutex<HashMap<Uuid, TrashedItem>>,
+}
+
+impl MockTrashRepository {
+    fn new() -> Self {
+        Self {
+            trash_items: Mutex::new(HashMap::new()),
+        }
+    }
+}
+
+#[async_trait]
+impl TrashRepository for MockTrashRepository {
+    async fn add_to_trash(&self, item: &TrashedItem) -> Result<()> {
+        let mut items = self.trash_items.lock().unwrap();
+        items.insert(item.id, item.clone());
+        Ok(())
+    }
+
+    async fn get_trash_items(&self, user_id: &Uuid) -> Result<Vec<TrashedItem>> {
+        let items = self.trash_items.lock().unwrap();
+        let user_items = items.values()
+            .filter(|item| item.user_id == *user_id)
+            .cloned()
+            .collect();
+        Ok(user_items)
+    }
+
+    async fn get_trash_item(&self, id: &Uuid, user_id: &Uuid) -> Result<Option<TrashedItem>> {
+        let items = self.trash_items.lock().unwrap();
+        let item = items.get(id)
+            .filter(|item| item.user_id == *user_id)
+            .cloned();
+        Ok(item)
+    }
+
+    async fn restore_from_trash(&self, id: &Uuid, user_id: &Uuid) -> Result<()> {
+        let mut items = self.trash_items.lock().unwrap();
+        if let Some(item) = items.get(id) {
+            if item.user_id == *user_id {
+                items.remove(id);
+            }
+        }
+        Ok(())
+    }
+
+    async fn delete_permanently(&self, id: &Uuid, user_id: &Uuid) -> Result<()> {
+        let mut items = self.trash_items.lock().unwrap();
+        if let Some(item) = items.get(id) {
+            if item.user_id == *user_id {
+                items.remove(id);
+            }
+        }
+        Ok(())
+    }
+
+    async fn clear_trash(&self, user_id: &Uuid) -> Result<()> {
+        let mut items = self.trash_items.lock().unwrap();
+        items.retain(|_, item| item.user_id != *user_id);
+        Ok(())
+    }
+
+    async fn get_expired_items(&self) -> Result<Vec<TrashedItem>> {
+        let items = self.trash_items.lock().unwrap();
+        let now = Utc::now();
+        let expired = items.values()
+            .filter(|item| item.deletion_date <= now)
+            .cloned()
+            .collect();
+        Ok(expired)
+    }
+}
+
+struct MockFileRepository {
+    files: Mutex<HashMap<String, File>>,
+    trashed_files: Mutex<HashMap<String, File>>,
+}
+
+impl MockFileRepository {
+    fn new() -> Self {
+        Self {
+            files: Mutex::new(HashMap::new()),
+            trashed_files: Mutex::new(HashMap::new()),
+        }
+    }
+
+    fn add_test_file(&self, id: &str, name: &str, path: &str) {
+        let file = File::new(
+            Uuid::parse_str(id).unwrap(),
+            name.to_string(),
+            path.to_string(),
+            "text/plain".to_string(),
+            100,
+            Uuid::new_v4(),
+            None,
+        ).unwrap();
+        
+        let mut files = self.files.lock().unwrap();
+        files.insert(id.to_string(), file);
+    }
+}
+
+#[async_trait]
+impl FileRepository for MockFileRepository {
+    async fn get_file_by_id(&self, id: &str) -> FileRepositoryResult<File> {
+        let files = self.files.lock().unwrap();
+        if let Some(file) = files.get(id) {
+            Ok(file.clone())
+        } else {
+            Err("File not found".into())
+        }
+    }
+
+    async fn move_to_trash(&self, id: &str) -> FileRepositoryResult<()> {
+        let mut files = self.files.lock().unwrap();
+        let mut trashed = self.trashed_files.lock().unwrap();
+        
+        if let Some(file) = files.remove(id) {
+            trashed.insert(id.to_string(), file);
+            Ok(())
+        } else {
+            Err("File not found".into())
+        }
+    }
+
+    async fn restore_from_trash(&self, id: &str, original_path: &str) -> FileRepositoryResult<()> {
+        let mut files = self.files.lock().unwrap();
+        let mut trashed = self.trashed_files.lock().unwrap();
+        
+        if let Some(file) = trashed.remove(id) {
+            files.insert(id.to_string(), file);
+            Ok(())
+        } else {
+            Err("File not found in trash".into())
+        }
+    }
+
+    async fn delete_file_permanently(&self, id: &str) -> FileRepositoryResult<()> {
+        let mut trashed = self.trashed_files.lock().unwrap();
+        if trashed.remove(id).is_some() {
+            Ok(())
+        } else {
+            Err("File not found in trash".into())
+        }
+    }
+
+    // Other methods required by the trait (not used in tests)
+    async fn save_file(&self, _file: &File) -> FileRepositoryResult<()> { Ok(()) }
+    async fn delete_file(&self, _id: &str) -> FileRepositoryResult<()> { Ok(()) }
+    async fn get_files_in_folder(&self, _folder_id: Option<&str>) -> FileRepositoryResult<Vec<File>> { Ok(vec![]) }
+    async fn move_file(&self, _id: &str, _new_folder_id: Option<&str>) -> FileRepositoryResult<()> { Ok(()) }
+    async fn update_file_data(&self, _id: &str, _new_data: &[u8]) -> FileRepositoryResult<()> { Ok(()) }
+    async fn get_file_data(&self, _id: &str) -> FileRepositoryResult<Vec<u8>> { Ok(vec![]) }
+}
+
+struct MockFolderRepository {
+    folders: Mutex<HashMap<String, Folder>>,
+    trashed_folders: Mutex<HashMap<String, Folder>>,
+}
+
+impl MockFolderRepository {
+    fn new() -> Self {
+        Self {
+            folders: Mutex::new(HashMap::new()),
+            trashed_folders: Mutex::new(HashMap::new()),
+        }
+    }
+
+    fn add_test_folder(&self, id: &str, name: &str, path: &str) {
+        let folder = Folder::new(
+            Uuid::parse_str(id).unwrap(),
+            name.to_string(),
+            path.to_string(),
+            None,
+        ).unwrap();
+        
+        let mut folders = self.folders.lock().unwrap();
+        folders.insert(id.to_string(), folder);
+    }
+}
+
+#[async_trait]
+impl FolderRepository for MockFolderRepository {
+    async fn get_folder_by_id(&self, id: &str) -> FolderRepositoryResult<Folder> {
+        let folders = self.folders.lock().unwrap();
+        if let Some(folder) = folders.get(id) {
+            Ok(folder.clone())
+        } else {
+            Err("Folder not found".into())
+        }
+    }
+
+    async fn move_to_trash(&self, id: &str) -> FolderRepositoryResult<()> {
+        let mut folders = self.folders.lock().unwrap();
+        let mut trashed = self.trashed_folders.lock().unwrap();
+        
+        if let Some(folder) = folders.remove(id) {
+            trashed.insert(id.to_string(), folder);
+            Ok(())
+        } else {
+            Err("Folder not found".into())
+        }
+    }
+
+    async fn restore_from_trash(&self, id: &str, original_path: &str) -> FolderRepositoryResult<()> {
+        let mut folders = self.folders.lock().unwrap();
+        let mut trashed = self.trashed_folders.lock().unwrap();
+        
+        if let Some(folder) = trashed.remove(id) {
+            folders.insert(id.to_string(), folder);
+            Ok(())
+        } else {
+            Err("Folder not found in trash".into())
+        }
+    }
+
+    async fn delete_folder_permanently(&self, id: &str) -> FolderRepositoryResult<()> {
+        let mut trashed = self.trashed_folders.lock().unwrap();
+        if trashed.remove(id).is_some() {
+            Ok(())
+        } else {
+            Err("Folder not found in trash".into())
+        }
+    }
+
+    // Other methods required by the trait (not used in tests)
+    async fn save_folder(&self, _folder: &Folder) -> FolderRepositoryResult<()> { Ok(()) }
+    async fn delete_folder(&self, _id: &str) -> FolderRepositoryResult<()> { Ok(()) }
+    async fn get_folders_in_folder(&self, _parent_id: Option<&str>) -> FolderRepositoryResult<Vec<Folder>> { Ok(vec![]) }
+    async fn move_folder(&self, _id: &str, _new_parent_id: Option<&str>) -> FolderRepositoryResult<()> { Ok(()) }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[tokio::test]
+    async fn test_move_file_to_trash() {
+        // Arrange
+        let trash_repo = Arc::new(MockTrashRepository::new());
+        let file_repo = Arc::new(MockFileRepository::new());
+        let folder_repo = Arc::new(MockFolderRepository::new());
+        
+        let service = TrashService::new(
+            trash_repo.clone(),
+            file_repo.clone(),
+            folder_repo.clone(),
+            30, // 30 days retention
+        );
+        
+        let file_id = "550e8400-e29b-41d4-a716-446655440000";
+        let user_id = "550e8400-e29b-41d4-a716-446655440001";
+        
+        // Add a test file to the repository
+        file_repo.add_test_file(file_id, "test.txt", "/test/path/test.txt");
+        
+        // Act
+        let result = service.move_to_trash(file_id, "file", user_id).await;
+        
+        // Assert
+        assert!(result.is_ok(), "Moving file to trash failed: {:?}", result);
+        
+        // Verify the file is in trash
+        let user_uuid = Uuid::parse_str(user_id).unwrap();
+        let trash_items = trash_repo.get_trash_items(&user_uuid).await.unwrap();
+        
+        assert_eq!(trash_items.len(), 1, "Should have exactly one item in trash");
+        let trash_item = &trash_items[0];
+        
+        assert_eq!(trash_item.original_id.to_string(), file_id, "Original ID should match file ID");
+        assert_eq!(trash_item.user_id.to_string(), user_id, "User ID should match");
+        assert_eq!(trash_item.item_type, TrashedItemType::File, "Item type should be File");
+        assert_eq!(trash_item.name, "test.txt", "File name should match");
+        
+        // Verify file is moved in file repository
+        let files = file_repo.files.lock().unwrap();
+        let trashed_files = file_repo.trashed_files.lock().unwrap();
+        
+        assert!(files.get(file_id).is_none(), "File should no longer be in main storage");
+        assert!(trashed_files.get(file_id).is_some(), "File should be in trash storage");
+    }
+
+    #[tokio::test]
+    async fn test_move_folder_to_trash() {
+        // Arrange
+        let trash_repo = Arc::new(MockTrashRepository::new());
+        let file_repo = Arc::new(MockFileRepository::new());
+        let folder_repo = Arc::new(MockFolderRepository::new());
+        
+        let service = TrashService::new(
+            trash_repo.clone(),
+            file_repo.clone(),
+            folder_repo.clone(),
+            30, // 30 days retention
+        );
+        
+        let folder_id = "550e8400-e29b-41d4-a716-446655440002";
+        let user_id = "550e8400-e29b-41d4-a716-446655440001";
+        
+        // Add a test folder to the repository
+        folder_repo.add_test_folder(folder_id, "test_folder", "/test/path/test_folder");
+        
+        // Act
+        let result = service.move_to_trash(folder_id, "folder", user_id).await;
+        
+        // Assert
+        assert!(result.is_ok(), "Moving folder to trash failed: {:?}", result);
+        
+        // Verify the folder is in trash
+        let user_uuid = Uuid::parse_str(user_id).unwrap();
+        let trash_items = trash_repo.get_trash_items(&user_uuid).await.unwrap();
+        
+        assert_eq!(trash_items.len(), 1, "Should have exactly one item in trash");
+        let trash_item = &trash_items[0];
+        
+        assert_eq!(trash_item.original_id.to_string(), folder_id, "Original ID should match folder ID");
+        assert_eq!(trash_item.user_id.to_string(), user_id, "User ID should match");
+        assert_eq!(trash_item.item_type, TrashedItemType::Folder, "Item type should be Folder");
+        assert_eq!(trash_item.name, "test_folder", "Folder name should match");
+    }
+
+    #[tokio::test]
+    async fn test_restore_file_from_trash() {
+        // Arrange
+        let trash_repo = Arc::new(MockTrashRepository::new());
+        let file_repo = Arc::new(MockFileRepository::new());
+        let folder_repo = Arc::new(MockFolderRepository::new());
+        
+        let service = TrashService::new(
+            trash_repo.clone(),
+            file_repo.clone(),
+            folder_repo.clone(),
+            30, // 30 days retention
+        );
+        
+        let file_id = "550e8400-e29b-41d4-a716-446655440000";
+        let user_id = "550e8400-e29b-41d4-a716-446655440001";
+        let file_path = "/test/path/test.txt";
+        
+        // Add a test file and move it to trash
+        file_repo.add_test_file(file_id, "test.txt", file_path);
+        service.move_to_trash(file_id, "file", user_id).await.unwrap();
+        
+        // Get the trash item ID
+        let user_uuid = Uuid::parse_str(user_id).unwrap();
+        let trash_items = trash_repo.get_trash_items(&user_uuid).await.unwrap();
+        let trash_id = trash_items[0].id.to_string();
+        
+        // Act
+        let result = service.restore_item(&trash_id, user_id).await;
+        
+        // Assert
+        assert!(result.is_ok(), "Restoring file from trash failed: {:?}", result);
+        
+        // Verify the file is restored in file repository
+        let files = file_repo.files.lock().unwrap();
+        let trashed_files = file_repo.trashed_files.lock().unwrap();
+        
+        assert!(files.get(file_id).is_some(), "File should be back in main storage");
+        assert!(trashed_files.get(file_id).is_none(), "File should no longer be in trash storage");
+        
+        // Verify the trash item is removed
+        let trash_items = trash_repo.get_trash_items(&user_uuid).await.unwrap();
+        assert_eq!(trash_items.len(), 0, "Trash should be empty after restoration");
+    }
+
+    #[tokio::test]
+    async fn test_delete_permanently() {
+        // Arrange
+        let trash_repo = Arc::new(MockTrashRepository::new());
+        let file_repo = Arc::new(MockFileRepository::new());
+        let folder_repo = Arc::new(MockFolderRepository::new());
+        
+        let service = TrashService::new(
+            trash_repo.clone(),
+            file_repo.clone(),
+            folder_repo.clone(),
+            30, // 30 days retention
+        );
+        
+        let file_id = "550e8400-e29b-41d4-a716-446655440000";
+        let user_id = "550e8400-e29b-41d4-a716-446655440001";
+        
+        // Add a test file and move it to trash
+        file_repo.add_test_file(file_id, "test.txt", "/test/path/test.txt");
+        service.move_to_trash(file_id, "file", user_id).await.unwrap();
+        
+        // Get the trash item ID
+        let user_uuid = Uuid::parse_str(user_id).unwrap();
+        let trash_items = trash_repo.get_trash_items(&user_uuid).await.unwrap();
+        let trash_id = trash_items[0].id.to_string();
+        
+        // Act
+        let result = service.delete_permanently(&trash_id, user_id).await;
+        
+        // Assert
+        assert!(result.is_ok(), "Deleting file permanently failed: {:?}", result);
+        
+        // Verify the file is permanently deleted
+        let files = file_repo.files.lock().unwrap();
+        let trashed_files = file_repo.trashed_files.lock().unwrap();
+        
+        assert!(files.get(file_id).is_none(), "File should not be in main storage");
+        assert!(trashed_files.get(file_id).is_none(), "File should not be in trash storage");
+        
+        // Verify the trash item is removed
+        let trash_items = trash_repo.get_trash_items(&user_uuid).await.unwrap();
+        assert_eq!(trash_items.len(), 0, "Trash should be empty after permanent deletion");
+    }
+
+    #[tokio::test]
+    async fn test_empty_trash() {
+        // Arrange
+        let trash_repo = Arc::new(MockTrashRepository::new());
+        let file_repo = Arc::new(MockFileRepository::new());
+        let folder_repo = Arc::new(MockFolderRepository::new());
+        
+        let service = TrashService::new(
+            trash_repo.clone(),
+            file_repo.clone(),
+            folder_repo.clone(),
+            30, // 30 days retention
+        );
+        
+        let user_id = "550e8400-e29b-41d4-a716-446655440001";
+        
+        // Add multiple files and folders to trash
+        let file_ids = [
+            "550e8400-e29b-41d4-a716-446655440010",
+            "550e8400-e29b-41d4-a716-446655440011",
+        ];
+        
+        let folder_ids = [
+            "550e8400-e29b-41d4-a716-446655440020",
+            "550e8400-e29b-41d4-a716-446655440021",
+        ];
+        
+        // Add test files and folders
+        for (i, file_id) in file_ids.iter().enumerate() {
+            file_repo.add_test_file(file_id, &format!("test{}.txt", i), &format!("/test/path/test{}.txt", i));
+            service.move_to_trash(file_id, "file", user_id).await.unwrap();
+        }
+        
+        for (i, folder_id) in folder_ids.iter().enumerate() {
+            folder_repo.add_test_folder(folder_id, &format!("folder{}", i), &format!("/test/path/folder{}", i));
+            service.move_to_trash(folder_id, "folder", user_id).await.unwrap();
+        }
+        
+        // Verify items are in trash
+        let user_uuid = Uuid::parse_str(user_id).unwrap();
+        let trash_items = trash_repo.get_trash_items(&user_uuid).await.unwrap();
+        assert_eq!(trash_items.len(), 4, "Should have 4 items in trash");
+        
+        // Act
+        let result = service.empty_trash(user_id).await;
+        
+        // Assert
+        assert!(result.is_ok(), "Emptying trash failed: {:?}", result);
+        
+        // Verify all items are permanently deleted
+        for file_id in &file_ids {
+            let files = file_repo.files.lock().unwrap();
+            let trashed_files = file_repo.trashed_files.lock().unwrap();
+            assert!(files.get(*file_id).is_none(), "File should not be in main storage");
+            assert!(trashed_files.get(*file_id).is_none(), "File should not be in trash storage");
+        }
+        
+        for folder_id in &folder_ids {
+            let folders = folder_repo.folders.lock().unwrap();
+            let trashed_folders = folder_repo.trashed_folders.lock().unwrap();
+            assert!(folders.get(*folder_id).is_none(), "Folder should not be in main storage");
+            assert!(trashed_folders.get(*folder_id).is_none(), "Folder should not be in trash storage");
+        }
+        
+        // Verify the trash is empty
+        let trash_items = trash_repo.get_trash_items(&user_uuid).await.unwrap();
+        assert_eq!(trash_items.len(), 0, "Trash should be empty after emptying");
+    }
+}