initial commit

Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: Ic08e7c4b5b4f4072de9e2f9a701e977b6a6a6964

src/filters.ts

@@ -0,0 +1,43 @@
+import type { FiltersConfig, WebhookEvent } from './types.js';
+
+export function shouldProcess(
+  event: WebhookEvent,
+  filters: FiltersConfig
+): { pass: boolean; reason?: string } {
+  // Label filters
+  if (filters.labels.include.length > 0) {
+    const hasRequired = event.labels.some((l) => filters.labels.include.includes(l));
+    if (!hasRequired) {
+      return { pass: false, reason: 'Missing required label' };
+    }
+  }
+
+  if (filters.labels.exclude.length > 0) {
+    const hasExcluded = event.labels.some((l) => filters.labels.exclude.includes(l));
+    if (hasExcluded) {
+      return { pass: false, reason: 'Has excluded label' };
+    }
+  }
+
+  // Author filters
+  if (filters.authors.include && filters.authors.include.length > 0) {
+    if (!filters.authors.include.includes(event.author)) {
+      return { pass: false, reason: 'Author not in include list' };
+    }
+  }
+
+  if (filters.authors.exclude.length > 0) {
+    if (filters.authors.exclude.includes(event.author)) {
+      return { pass: false, reason: 'Author is excluded' };
+    }
+  }
+
+  // Branch filters (PRs only)
+  if (event.branch && filters.branches.include.length > 0) {
+    if (!filters.branches.include.includes(event.branch)) {
+      return { pass: false, reason: 'Branch not in include list' };
+    }
+  }
+
+  return { pass: true };
+}