feat: initial work on MongoDB support

swordfish-common/src/database/katana.rs

@@ -0,0 +1,29 @@
+use mongodb::Collection;
+
+use crate::database;
+use crate::structs::Card;
+use std::sync::OnceLock;
+
+static KATANA: OnceLock<Collection<Card>> = OnceLock::new();
+
+///
+/// Initialize the "katana" collection in MongoDB
+/// 
+/// This method is called automatically when you initialize the
+/// database module.
+/// 
+pub fn init() {
+    KATANA
+        .set(
+            database::MONGO_DATABASE
+                .get()
+                .unwrap()
+                .collection::<Card>("katana"),
+        )
+        .unwrap();
+}
+
+fn query_card() {
+    todo!("Query card from database");
+    println!("{:?}", card);
+}