Add more flags and verbose logging

src/resource.ts

@@ -5,32 +5,41 @@ import {
   ResourceMap,
 } from "./playbill-schema";
 
+export class ResourceFileError extends Error { }
+export class NullResourceError extends Error { }
+
 export async function loadResourceFile(
   filePath: string,
 ): Promise<AnyResource[]> {
-  try {
-    const file = Bun.file(filePath);
-    const text = await file.text();
+  const file = Bun.file(filePath);
+  const text = await file.text();
 
-    const parsedDocs = YAML.parseAllDocuments(text);
+  const parsedDocs = YAML.parseAllDocuments(text);
 
-    const collection: AnyResource[] = [];
+  if (parsedDocs.some((doc) => doc.toJS() === null)) {
+    throw new NullResourceError(`Null resource defined in ${filePath}`);
+  }
 
-    for (const doc of parsedDocs) {
-      if (doc.errors.length > 0) {
-        throw new Error(`Error parsing ${filePath}: ${doc.errors}`);
-      }
+  const errors = parsedDocs.flatMap((doc) => doc.errors);
 
-      const raw = doc.toJS();
-      const parsed = AnyResourceSchema.parse(raw);
-      const type = parsed.$define;
-      const schemaToUse = ResourceMap[type];
+  if (errors.length > 0) {
+    throw new ResourceFileError(`Error parsing ${filePath}: ${errors}`);
+  }
 
-      collection.push(schemaToUse.parse(parsed));
+  const collection: AnyResource[] = [];
+
+  for (const doc of parsedDocs) {
+    if (doc.errors.length > 0) {
+      throw new ResourceFileError(`Error parsing ${filePath}: ${doc.errors}`);
     }
 
-    return collection;
-  } catch (error) {
-    throw new Error(`Error loading ${filePath}: ${error}`);
+    const raw = doc.toJS();
+    const parsed = AnyResourceSchema.parse(raw);
+    const type = parsed.$define;
+    const schemaToUse = ResourceMap[type];
+
+    collection.push(schemaToUse.parse(parsed));
   }
+
+  return collection;
 }