From 6ce8db6aa6a55c726257e6fde38ca207a6e93abf Mon Sep 17 00:00:00 2001
From: davelopez <46503462+davelopez@users.noreply.github.com>
Date: Fri, 6 May 2022 00:59:13 +0200
Subject: [PATCH] Implement `MissingPropertyValidationRule`

---
 .../validation/MissingPropertyValidation.ts   | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 server/src/providers/validation/MissingPropertyValidation.ts

diff --git a/server/src/providers/validation/MissingPropertyValidation.ts b/server/src/providers/validation/MissingPropertyValidation.ts
new file mode 100644
index 0000000..9302385
--- /dev/null
+++ b/server/src/providers/validation/MissingPropertyValidation.ts
@@ -0,0 +1,19 @@
+import { Diagnostic, DiagnosticSeverity } from "vscode-languageserver-types";
+import { ValidationContributor, WorkflowDocument } from "../../languageTypes";
+
+export class MissingPropertyValidationRule implements ValidationContributor {
+  constructor(readonly nodePath: string, readonly severity?: DiagnosticSeverity | undefined) {}
+
+  validate(workflowDocument: WorkflowDocument): Promise<Diagnostic[]> {
+    const result: Diagnostic[] = [];
+    const targetNode = workflowDocument.getNodeFromPath(this.nodePath);
+    if (!targetNode) {
+      result.push({
+        message: `Property '${this.nodePath}' is missing`,
+        range: workflowDocument.getDefaultRange(),
+        severity: this.severity,
+      });
+    }
+    return Promise.resolve(result);
+  }
+}