csr version imported

src/utils/mod.rs

@@ -0,0 +1,21 @@
+use crate::prelude::*;
+
+
+pub fn read_items (contents: &str, map: &mut HashMap<String, Item>) -> usize {
+    let Ok(json): std::result::Result<Value, _> = serde_json::from_str(&contents) else { error!("Can't read Value from contents"); return 0 };
+    let Value::Array(list) = json else { error!("Value isn't Array, skipping"); return 0 };
+
+    let start = map.len();
+
+    for t in list.into_iter().map(Item::from_json).flatten() {
+        if map.contains_key(&t.name) {
+            let entry = map.get_mut(&t.name).unwrap();
+            entry.weight = entry.weight.or(t.weight);
+            entry.rest.extend(t.rest);
+        } else {
+            map.insert(t.name.clone(), t);
+        }
+    }
+
+    map.len() - start
+}