init

crates/application/src/entry/use_cases/get_entry.rs

@@ -0,0 +1,29 @@
+use std::sync::Arc;
+
+use domain::entry::{MoodEntry, MoodEntryId};
+use domain::errors::DomainError;
+use domain::ports::MoodEntryQueryPort;
+use domain::user::UserId;
+
+use crate::authorization::verify_ownership;
+use crate::errors::ApplicationError;
+
+pub struct Deps {
+    pub query: Arc<dyn MoodEntryQueryPort>,
+}
+
+#[tracing::instrument(skip(deps))]
+pub async fn execute(
+    entry_id: MoodEntryId,
+    caller_id: UserId,
+    deps: &Deps,
+) -> Result<MoodEntry, ApplicationError> {
+    let entry = deps
+        .query
+        .find_by_id(&entry_id)
+        .await?
+        .ok_or_else(|| DomainError::NotFound("mood entry not found".into()))?;
+
+    verify_ownership(entry.user_id(), &caller_id)?;
+    Ok(entry)
+}