refactor: introduce IngestTransaction port to reduce IngestAssetHandler from 7 to 4 ports

crates/adapters/postgres/src/storage/mod.rs

@@ -3,13 +3,13 @@ use async_trait::async_trait;
 use chrono::{DateTime, Utc};
 use domain::{
     entities::{
-        IngestSession, IngestStatus, LibraryPath, OwnershipPolicy, QuotaDefinition, QuotaRule,
-        StorageVolume, TimePeriod, UsageLedgerEntry, UsageType,
+        Asset, IngestSession, IngestStatus, LibraryPath, OwnershipPolicy, QuotaDefinition,
+        QuotaRule, StorageVolume, TimePeriod, UsageLedgerEntry, UsageType,
     },
     errors::DomainError,
     ports::{
-        IngestSessionRepository, LibraryPathRepository, QuotaRepository, StorageVolumeRepository,
-        UsageLedgerRepository,
+        IngestSessionRepository, IngestTransaction, LibraryPathRepository, QuotaRepository,
+        StorageVolumeRepository, UsageLedgerRepository,
     },
     value_objects::{Checksum, DateTimeStamp, SystemId},
 };
@@ -565,3 +565,51 @@ impl UsageLedgerRepository for PostgresUsageLedgerRepository {
         Ok(row.total as u64)
     }
 }
+
+// ──────────────────────────────────────────────
+// IngestTransaction (composite port)
+// ──────────────────────────────────────────────
+
+pg_repo!(PostgresIngestTransaction);
+
+#[async_trait]
+impl IngestTransaction for PostgresIngestTransaction {
+    async fn save_asset(&self, asset: &Asset) -> Result<(), DomainError> {
+        use domain::ports::AssetRepository;
+        crate::PostgresAssetRepository::new(self.pool.clone())
+            .save(asset)
+            .await
+    }
+
+    async fn save_session(&self, session: &IngestSession) -> Result<(), DomainError> {
+        PostgresIngestSessionRepository::new(self.pool.clone())
+            .save(session)
+            .await
+    }
+
+    async fn find_quota(
+        &self,
+        owner_id: &SystemId,
+    ) -> Result<Option<QuotaDefinition>, DomainError> {
+        PostgresQuotaRepository::new(self.pool.clone())
+            .find_by_owner(owner_id)
+            .await
+    }
+
+    async fn sum_usage(
+        &self,
+        user_id: &SystemId,
+        usage_type: UsageType,
+        since: Option<DateTimeStamp>,
+    ) -> Result<u64, DomainError> {
+        PostgresUsageLedgerRepository::new(self.pool.clone())
+            .sum_usage(user_id, usage_type, since)
+            .await
+    }
+
+    async fn record_usage(&self, entry: &UsageLedgerEntry) -> Result<(), DomainError> {
+        PostgresUsageLedgerRepository::new(self.pool.clone())
+            .record(entry)
+            .await
+    }
+}