feat: Add thumbnail management for albums and people, implement face embedding functionality

libertas_infra/src/repositories/face_embedding_repository.rs

@@ -0,0 +1,61 @@
+use async_trait::async_trait;
+use libertas_core::{
+    error::{CoreError, CoreResult},
+    models::FaceEmbedding,
+    repositories::FaceEmbeddingRepository,
+};
+use sqlx::PgPool;
+use uuid::Uuid;
+
+use crate::db_models::PostgresFaceEmbedding;
+
+#[derive(Clone)]
+pub struct PostgresFaceEmbeddingRepository {
+    pool: PgPool,
+}
+
+impl PostgresFaceEmbeddingRepository {
+    pub fn new(pool: PgPool) -> Self {
+        Self { pool }
+    }
+}
+
+#[async_trait]
+impl FaceEmbeddingRepository for PostgresFaceEmbeddingRepository {
+    async fn create(&self, embedding: &FaceEmbedding) -> CoreResult<()> {
+        sqlx::query!(
+            r#"
+            INSERT INTO face_embeddings (id, face_region_id, model_id, embedding)
+            VALUES ($1, $2, $3, $4)
+            "#,
+            embedding.id,
+            embedding.face_region_id,
+            embedding.model_id,
+            embedding.embedding
+        )
+        .execute(&self.pool)
+        .await
+        .map_err(|e| CoreError::Database(e.to_string()))?;
+        Ok(())
+    }
+
+    async fn find_by_face_region_id(
+        &self,
+        face_region_id: Uuid,
+    ) -> CoreResult<Option<FaceEmbedding>> {
+        let pg_embedding = sqlx::query_as!(
+            PostgresFaceEmbedding,
+            r#"
+            SELECT id, face_region_id, model_id, embedding
+            FROM face_embeddings
+            WHERE face_region_id = $1
+            "#,
+            face_region_id
+        )
+        .fetch_optional(&self.pool)
+        .await
+        .map_err(|e| CoreError::Database(e.to_string()))?;
+
+        Ok(pg_embedding.map(FaceEmbedding::from))
+    }
+}