chore: update to ai sdk v5 beta (#1074)

lib/types.ts

@@ -1 +1,57 @@
+import { z } from 'zod';
+import type { getWeather } from './ai/tools/get-weather';
+import type { createDocument } from './ai/tools/create-document';
+import type { updateDocument } from './ai/tools/update-document';
+import type { requestSuggestions } from './ai/tools/request-suggestions';
+import type { InferUITool, UIMessage } from 'ai';
+
+import type { ArtifactKind } from '@/components/artifact';
+import type { Suggestion } from './db/schema';
+
 export type DataPart = { type: 'append-message'; message: string };
+
+export const messageMetadataSchema = z.object({
+  createdAt: z.string(),
+});
+
+export type MessageMetadata = z.infer<typeof messageMetadataSchema>;
+
+type weatherTool = InferUITool<typeof getWeather>;
+type createDocumentTool = InferUITool<ReturnType<typeof createDocument>>;
+type updateDocumentTool = InferUITool<ReturnType<typeof updateDocument>>;
+type requestSuggestionsTool = InferUITool<
+  ReturnType<typeof requestSuggestions>
+>;
+
+export type ChatTools = {
+  getWeather: weatherTool;
+  createDocument: createDocumentTool;
+  updateDocument: updateDocumentTool;
+  requestSuggestions: requestSuggestionsTool;
+};
+
+export type CustomUIDataTypes = {
+  textDelta: string;
+  imageDelta: string;
+  sheetDelta: string;
+  codeDelta: string;
+  suggestion: Suggestion;
+  appendMessage: string;
+  id: string;
+  title: string;
+  kind: ArtifactKind;
+  clear: null;
+  finish: null;
+};
+
+export type ChatMessage = UIMessage<
+  MessageMetadata,
+  CustomUIDataTypes,
+  ChatTools
+>;
+
+export interface Attachment {
+  name: string;
+  url: string;
+  contentType: string;
+}