1 files changed, 42 insertions, 0 deletions
diff --git a/plugins/bntl_utils/src/schema.rs b/plugins/bntl_utils/src/schema.rs
new file mode 100644
index 00000000..2a9e6d50
--- /dev/null
+++ b/plugins/bntl_utils/src/schema.rs
@@ -0,0 +1,42 @@
+use serde::Deserialize;
+use std::collections::{HashMap, HashSet};
+use std::fs::File;
+use std::path::Path;
+
+#[derive(Deserialize, Debug)]
+pub struct BntlSchema {
+    // The list of library names this library depends on
+    pub dependencies: Vec<String>,
+    // Maps internal type IDs or names to their external sources
+    pub type_sources: Vec<TypeSource>,
+}
+
+impl BntlSchema {
+    pub fn from_file(file: &File) -> Self {
+        serde_json::from_reader(file).expect("JSON schema mismatch")
+    }
+
+    pub fn from_path(path: &Path) -> Self {
+        Self::from_file(&File::open(path).expect("Failed to open schema file"))
+    }
+
+    pub fn to_source_map(&self) -> HashMap<String, HashSet<String>> {
+        let mut dependencies_map: HashMap<String, HashSet<String>> = HashMap::new();
+        for ts in &self.type_sources {
+            let full_name = ts.name.join("::");
+            dependencies_map
+                .entry(ts.source.clone())
+                .or_default()
+                .insert(full_name);
+        }
+        dependencies_map
+    }
+}
+
+#[derive(Deserialize, Debug)]
+pub struct TypeSource {
+    // The components of the name, e.g., ["std", "string"]
+    pub name: Vec<String>,
+    // The name of the dependency library it comes from
+    pub source: String,
+}