App contract list

Implement retrieve app contracts by UUID, admin, and operator

src/db/app.rs

@@ -233,6 +233,12 @@ pub struct ActiveAppWithNode {
 }
 
 impl ActiveAppWithNode {
+    pub async fn get_by_uuid(db: &Surreal<Client>, uuid: &str) -> Result<Option<Self>, Error> {
+        let contract: Option<Self> =
+            db.query(format!("select * from {ACTIVE_APP}:{uuid} fetch out;")).await?.take(0)?;
+        Ok(contract)
+    }
+
     pub async fn list_by_node(db: &Surreal<Client>, node_pubkey: &str) -> Result<Vec<Self>, Error> {
         let mut query_result = db
             .query(format!(
@@ -244,10 +250,38 @@ impl ActiveAppWithNode {
         Ok(contract)
     }
 
-    pub async fn get_by_uuid(db: &Surreal<Client>, uuid: &str) -> Result<Option<Self>, Error> {
-        let contract: Option<Self> =
-            db.query(format!("select * from {ACTIVE_APP}:{uuid} fetch out;")).await?.take(0)?;
-        Ok(contract)
+    pub async fn list_by_admin(db: &Surreal<Client>, admin: &str) -> Result<Vec<Self>, Error> {
+        let mut query_result = db
+            .query(format!("select * from {ACTIVE_APP} where in = {ACCOUNT}:{admin} fetch out;"))
+            .await?;
+
+        let app_contracts: Vec<Self> = query_result.take(0)?;
+
+        Ok(app_contracts)
+    }
+
+    pub async fn list_by_operator(
+        db: &Surreal<Client>,
+        operator: &str,
+    ) -> Result<Vec<Self>, Error> {
+        let mut query_result = db
+            .query(format!(
+                "select
+                    (select * from ->operator->app_node<-{ACTIVE_APP} fetch out)
+                    as app_contracts
+                from {ACCOUNT}:{operator}"
+            ))
+            .await?;
+        #[derive(Deserialize)]
+        struct Wrapper {
+            app_contracts: Vec<ActiveAppWithNode>,
+        }
+
+        let c: Option<Wrapper> = query_result.take(0)?;
+        match c {
+            Some(contracts_wrapper) => Ok(contracts_wrapper.app_contracts),
+            None => Ok(vec![]),
+        }
     }
 }
 

src/grpc/app.rs

@@ -210,7 +210,36 @@ impl BrainAppCli for AppCliServer {
         let req = check_sig_from_req(req)?;
         info!("list_app_contracts process starting for {:?}", req);
 
-        todo!()
+        let mut app_contracts = Vec::new();
+
+        if !req.uuid.is_empty() {
+            if let Some(app_contract) =
+                db::ActiveAppWithNode::get_by_uuid(&self.db, &req.uuid).await?
+            {
+                if app_contract.admin.key().to_string() == req.admin_pubkey {
+                    app_contracts.push(app_contract);
+                }
+                // TODO: allow operator to inspect contracts
+            }
+        } else if req.as_operator {
+            app_contracts.append(
+                &mut db::ActiveAppWithNode::list_by_operator(&self.db, &req.admin_pubkey).await?,
+            );
+        } else {
+            app_contracts.append(
+                &mut db::ActiveAppWithNode::list_by_admin(&self.db, &req.admin_pubkey).await?,
+            );
+        }
+
+        let (tx, rx) = mpsc::channel(6);
+        tokio::spawn(async move {
+            for app_contract in app_contracts {
+                let _ = tx.send(Ok(app_contract.into())).await;
+            }
+        });
+
+        let resp_stream = ReceiverStream::new(rx);
+        Ok(Response::new(Box::pin(resp_stream)))
     }
 
     async fn list_app_nodes(