feat: v2 rewrite — hexagonal arch, ActivityPub federation, NATS, deployment-ready (#1)

crates/adapters/postgres/src/remote_actor.rs

@@ -0,0 +1,59 @@
+use crate::db_error::IntoDbResult;
+use async_trait::async_trait;
+use chrono::{DateTime, Utc};
+use domain::{
+    errors::DomainError, models::remote_actor::RemoteActor, ports::RemoteActorRepository,
+};
+use sqlx::PgPool;
+
+pub struct PgRemoteActorRepository {
+    pool: PgPool,
+}
+impl PgRemoteActorRepository {
+    pub fn new(pool: PgPool) -> Self {
+        Self { pool }
+    }
+}
+
+#[async_trait]
+impl RemoteActorRepository for PgRemoteActorRepository {
+    async fn upsert(&self, a: &RemoteActor) -> Result<(), DomainError> {
+        sqlx::query(
+            "INSERT INTO remote_actors(url,handle,display_name,avatar_url,last_fetched_at)
+             VALUES($1,$2,$3,$4,$5)
+             ON CONFLICT(url) DO UPDATE SET handle=EXCLUDED.handle,display_name=EXCLUDED.display_name,
+             avatar_url=EXCLUDED.avatar_url,last_fetched_at=EXCLUDED.last_fetched_at"
+        )
+        .bind(&a.url).bind(&a.handle).bind(&a.display_name).bind(&a.avatar_url).bind(a.last_fetched_at)
+        .execute(&self.pool).await.into_domain().map(|_| ())
+    }
+
+    async fn find_by_url(&self, url: &str) -> Result<Option<RemoteActor>, DomainError> {
+        #[derive(sqlx::FromRow)]
+        struct Row {
+            url: String,
+            handle: String,
+            display_name: Option<String>,
+            avatar_url: Option<String>,
+            last_fetched_at: DateTime<Utc>,
+        }
+        sqlx::query_as::<_, Row>(
+            "SELECT url,handle,display_name,avatar_url,last_fetched_at FROM remote_actors WHERE url=$1"
+        ).bind(url).fetch_optional(&self.pool).await
+        .into_domain()
+        .map(|o| o.map(|r| RemoteActor {
+            url: r.url,
+            handle: r.handle,
+            display_name: r.display_name,
+            avatar_url: r.avatar_url,
+            last_fetched_at: r.last_fetched_at,
+            bio: None,
+            banner_url: None,
+            also_known_as: None,
+            outbox_url: None,
+            followers_url: None,
+            following_url: None,
+            attachment: vec![],
+        }))
+    }
+}