feat: v1 — persistent shell, model gateway, artifact improvements (#1462)

components/data-stream-handler.tsx

@@ -1,92 +0,0 @@
-"use client";
-
-import { useEffect } from "react";
-import { useSWRConfig } from "swr";
-import { unstable_serialize } from "swr/infinite";
-import { initialArtifactData, useArtifact } from "@/hooks/use-artifact";
-import { artifactDefinitions } from "./artifact";
-import { useDataStream } from "./data-stream-provider";
-import { getChatHistoryPaginationKey } from "./sidebar-history";
-
-export function DataStreamHandler() {
-  const { dataStream, setDataStream } = useDataStream();
-  const { mutate } = useSWRConfig();
-
-  const { artifact, setArtifact, setMetadata } = useArtifact();
-
-  useEffect(() => {
-    if (!dataStream?.length) {
-      return;
-    }
-
-    const newDeltas = dataStream.slice();
-    setDataStream([]);
-
-    for (const delta of newDeltas) {
-      // Handle chat title updates
-      if (delta.type === "data-chat-title") {
-        mutate(unstable_serialize(getChatHistoryPaginationKey));
-        continue;
-      }
-      const artifactDefinition = artifactDefinitions.find(
-        (currentArtifactDefinition) =>
-          currentArtifactDefinition.kind === artifact.kind
-      );
-
-      if (artifactDefinition?.onStreamPart) {
-        artifactDefinition.onStreamPart({
-          streamPart: delta,
-          setArtifact,
-          setMetadata,
-        });
-      }
-
-      setArtifact((draftArtifact) => {
-        if (!draftArtifact) {
-          return { ...initialArtifactData, status: "streaming" };
-        }
-
-        switch (delta.type) {
-          case "data-id":
-            return {
-              ...draftArtifact,
-              documentId: delta.data,
-              status: "streaming",
-            };
-
-          case "data-title":
-            return {
-              ...draftArtifact,
-              title: delta.data,
-              status: "streaming",
-            };
-
-          case "data-kind":
-            return {
-              ...draftArtifact,
-              kind: delta.data,
-              status: "streaming",
-            };
-
-          case "data-clear":
-            return {
-              ...draftArtifact,
-              content: "",
-              status: "streaming",
-            };
-
-          case "data-finish":
-            return {
-              ...draftArtifact,
-              status: "idle",
-            };
-
-          default:
-            return draftArtifact;
-        }
-      });
-    }
-  }, [dataStream, setArtifact, setMetadata, artifact, setDataStream, mutate]);
-
-  return null;
-}