Initial commit

src/lib/prompt-draft.ts

@@ -0,0 +1,32 @@
+import type {
+  AdaptedContentPart,
+  UserResourceDisplay,
+} from "@/lib/adapters/ai-elements-adapter"
+import type { PromptDraft, PromptInputBlock } from "@/lib/types"
+
+function isResourceLinkBlock(
+  block: PromptInputBlock
+): block is Extract<PromptInputBlock, { type: "resource_link" }> {
+  return block.type === "resource_link"
+}
+
+export function getPromptDraftDisplayText(draft: PromptDraft): string {
+  const trimmed = draft.displayText.trim()
+  return trimmed || "Attached resources"
+}
+
+export function buildUserMessageTextPartsFromDraft(
+  draft: PromptDraft
+): AdaptedContentPart[] {
+  return [{ type: "text", text: getPromptDraftDisplayText(draft) }]
+}
+
+export function extractUserResourcesFromDraft(
+  draft: PromptDraft
+): UserResourceDisplay[] {
+  return draft.blocks.filter(isResourceLinkBlock).map((resource) => ({
+    name: resource.name,
+    uri: resource.uri,
+    mime_type: resource.mime_type ?? null,
+  }))
+}