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move isBase64ContentBlock to multimodal-utils.ts

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This commit is contained in:
starmorph
2025-05-20 13:56:11 -07:00
parent 87bdf5be01
commit 4472616d05
2 changed files with 33 additions and 31 deletions
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32
src/components/thread/messages/human.tsx
View File

@@ -6,7 +6,7 @@ import { cn } from "@/lib/utils";
import { Textarea } from "@/components/ui/textarea";
import { BranchSwitcher, CommandBar } from "./shared";
import { MultimodalPreview } from "@/components/thread/MultimodalPreview";
import type { Base64ContentBlock } from "@langchain/core/messages";
import { isBase64ContentBlock } from "@/lib/multimodal-utils";
function EditableContent({
value,
@@ -34,36 +34,6 @@ function EditableContent({
);
}
// Type guard for Base64ContentBlock
function isBase64ContentBlock(block: unknown): block is Base64ContentBlock {
if (typeof block !== "object" || block === null || !("type" in block))
return false;
// file type (legacy)
if (
(block as { type: unknown }).type === "file" &&
"source_type" in block &&
(block as { source_type: unknown }).source_type === "base64" &&
"mime_type" in block &&
typeof (block as { mime_type?: unknown }).mime_type === "string" &&
((block as { mime_type: string }).mime_type.startsWith("image/") ||
(block as { mime_type: string }).mime_type === "application/pdf")
) {
return true;
}
// image type (new)
if (
(block as { type: unknown }).type === "image" &&
"source_type" in block &&
(block as { source_type: unknown }).source_type === "base64" &&
"mime_type" in block &&
typeof (block as { mime_type?: unknown }).mime_type === "string" &&
(block as { mime_type: string }).mime_type.startsWith("image/")
) {
return true;
}
return false;
}
export function HumanMessage({
message,
isLoading,

32
src/lib/multimodal-utils.ts
View File

@@ -55,3 +55,35 @@ export async function fileToBase64(file: File): Promise<string> {
reader.readAsDataURL(file);
});
}
// Type guard for Base64ContentBlock
export function isBase64ContentBlock(
block: unknown,
): block is Base64ContentBlock {
if (typeof block !== "object" || block === null || !("type" in block))
return false;
// file type (legacy)
if (
(block as { type: unknown }).type === "file" &&
"source_type" in block &&
(block as { source_type: unknown }).source_type === "base64" &&
"mime_type" in block &&
typeof (block as { mime_type?: unknown }).mime_type === "string" &&
((block as { mime_type: string }).mime_type.startsWith("image/") ||
(block as { mime_type: string }).mime_type === "application/pdf")
) {
return true;
}
// image type (new)
if (
(block as { type: unknown }).type === "image" &&
"source_type" in block &&
(block as { source_type: unknown }).source_type === "base64" &&
"mime_type" in block &&
typeof (block as { mime_type?: unknown }).mime_type === "string" &&
(block as { mime_type: string }).mime_type.startsWith("image/")
) {
return true;
}
return false;
}