Split codebase (#455)

apps/yaak-client/hooks/useInheritedHeaders.ts

@@ -0,0 +1,53 @@
+import type {
+  Folder,
+  GrpcRequest,
+  HttpRequest,
+  HttpRequestHeader,
+  WebsocketRequest,
+  Workspace,
+} from "@yaakapp-internal/models";
+import { foldersAtom, workspacesAtom } from "@yaakapp-internal/models";
+import { atom, useAtomValue } from "jotai";
+import { defaultHeaders } from "../lib/defaultHeaders";
+
+const ancestorsAtom = atom((get) => [...get(foldersAtom), ...get(workspacesAtom)]);
+
+export type HeaderModel = HttpRequest | GrpcRequest | WebsocketRequest | Folder | Workspace;
+
+export function useInheritedHeaders(baseModel: HeaderModel | null) {
+  const parents = useAtomValue(ancestorsAtom);
+
+  if (baseModel == null) return [];
+  if (baseModel.model === "workspace") return defaultHeaders;
+
+  const next = (child: HeaderModel): HttpRequestHeader[] => {
+    // Short-circuit at workspace level - return global defaults + workspace headers
+    if (child.model === "workspace") {
+      return [...defaultHeaders, ...child.headers];
+    }
+
+    // Recurse up the tree
+    const parent = parents.find((p) => {
+      if (child.folderId) return p.id === child.folderId;
+      return p.id === child.workspaceId;
+    });
+
+    // Failed to find parent (should never happen)
+    if (parent == null) {
+      return [];
+    }
+
+    const headers = next(parent);
+    return [...headers, ...parent.headers];
+  };
+
+  const allHeaders = next(baseModel);
+
+  // Deduplicate by header name (case-insensitive), keeping the latest (most specific) value
+  const headersByName = new Map<string, HttpRequestHeader>();
+  for (const header of allHeaders) {
+    headersByName.set(header.name.toLowerCase(), header);
+  }
+
+  return Array.from(headersByName.values());
+}