export feature

crates/application/src/use_cases/export_diary.rs

@@ -1,23 +1,13 @@
-use std::sync::Arc;
+use domain::{errors::DomainError, value_objects::UserId};
 
-use domain::{
-    errors::DomainError,
-    ports::{DiaryExporter, DiaryRepository},
-};
+use crate::{commands::ExportCommand, context::AppContext};
 
-use crate::commands::ExportCommand;
-
-pub struct ExportDiary {
-    repository: Arc<dyn DiaryRepository>,
-    exporter: Arc<dyn DiaryExporter>,
-}
-
-impl ExportDiary {
-    pub async fn execute(&self, req: ExportCommand) -> Result<Vec<u8>, DomainError> {
-        // 1. fetch all diary entries for the user
-        // 2. delegate serialization to the port (exporter)
-
-        // Return bytes of the exported diary, which can be written to a file or returned in an HTTP response
-        Ok(vec![])
-    }
+pub async fn execute(ctx: &AppContext, cmd: ExportCommand) -> Result<Vec<u8>, DomainError> {
+    let entries = ctx
+        .diary_repository
+        .get_user_history(&UserId::from_uuid(cmd.user_id))
+        .await?;
+    ctx.diary_exporter
+        .serialize_entries(&entries, cmd.format)
+        .await
 }