Add news data support

- Refactor everything in the process, oops

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

src/database/news.rs

@@ -0,0 +1,50 @@
+use super::assets;
+use crate::types::News;
+use clickhouse::Client;
+use serde::Serialize;
+
+pub async fn upsert(clickhouse_client: &Client, news: &News) {
+    let mut insert = clickhouse_client.insert("news").unwrap();
+    insert.write(news).await.unwrap();
+    insert.end().await.unwrap();
+}
+
+pub async fn upsert_batch<T>(clickhouse_client: &Client, news: T)
+where
+    T: IntoIterator<Item = News> + Send + Sync,
+    T::IntoIter: Send,
+{
+    let mut insert = clickhouse_client.insert("news").unwrap();
+    for news in news {
+        insert.write(&news).await.unwrap();
+    }
+    insert.end().await.unwrap();
+}
+
+pub async fn delete_where_symbols<T>(clickhouse_client: &Client, symbols: &[T])
+where
+    T: AsRef<str> + Serialize + Send + Sync,
+{
+    clickhouse_client
+        .query("DELETE FROM news WHERE hasAny(symbols, ?)")
+        .bind(symbols)
+        .execute()
+        .await
+        .unwrap();
+}
+
+pub async fn cleanup(clickhouse_client: &Client) {
+    let assets = assets::select(clickhouse_client).await;
+
+    let symbols = assets
+        .into_iter()
+        .map(|asset| asset.abbreviation)
+        .collect::<Vec<_>>();
+
+    clickhouse_client
+        .query("DELETE FROM news WHERE NOT hasAny(symbols, ?)")
+        .bind(symbols)
+        .execute()
+        .await
+        .unwrap();
+}